Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

117 files changed, 5756 insertions, 420 deletions

diff --git a/drivers/base/core.c b/drivers/base/core.c
index 8079afca4972..55e530942ab0 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -777,10 +777,16 @@ static void device_remove_class_symlinks(struct device *dev)
 int dev_set_name(struct device *dev, const char *fmt, ...)
 {
         va_list vargs;
+        char *s;
 
         va_start(vargs, fmt);
         vsnprintf(dev->bus_id, sizeof(dev->bus_id), fmt, vargs);
         va_end(vargs);
+
+        /* ewww... some of these buggers have / in the name... */
+        while ((s = strchr(dev->bus_id, '/')))
+                *s = '!';
+
         return 0;
 }
 EXPORT_SYMBOL_GPL(dev_set_name);
diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c
index d4e7dca06e4f..ba68a4671cb5 100644
--- a/drivers/char/hw_random/omap-rng.c
+++ b/drivers/char/hw_random/omap-rng.c
@@ -102,7 +102,7 @@ static int __init omap_rng_probe(struct platform_device *pdev)
                 return -EBUSY;
 
         if (cpu_is_omap24xx()) {
-                rng_ick = clk_get(NULL, "rng_ick");
+                rng_ick = clk_get(&pdev->dev, "rng_ick");
                 if (IS_ERR(rng_ick)) {
                         dev_err(&pdev->dev, "Could not get rng_ick\n");
                         ret = PTR_ERR(rng_ick);
diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index e34b06420816..48ea59e79672 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -62,6 +62,25 @@ config MV_XOR
         ---help---
           Enable support for the Marvell XOR engine.
 
+config MX3_IPU
+        bool "MX3x Image Processing Unit support"
+        depends on ARCH_MX3
+        select DMA_ENGINE
+        default y
+        help
+          If you plan to use the Image Processing unit in the i.MX3x, say
+          Y here. If unsure, select Y.
+
+config MX3_IPU_IRQS
+        int "Number of dynamically mapped interrupts for IPU"
+        depends on MX3_IPU
+        range 2 137
+        default 4
+        help
+          Out of 137 interrupt sources on i.MX31 IPU only very few are used.
+          To avoid bloating the irq_desc[] array we allocate a sufficient
+          number of IRQ slots and map them dynamically to specific sources.
+
 config DMA_ENGINE
         bool
 
diff --git a/drivers/dma/Makefile b/drivers/dma/Makefile
index 14f59527d4f6..2e5dc96700d2 100644
--- a/drivers/dma/Makefile
+++ b/drivers/dma/Makefile
@@ -7,3 +7,4 @@ obj-$(CONFIG_INTEL_IOP_ADMA) += iop-adma.o
 obj-$(CONFIG_FSL_DMA) += fsldma.o
 obj-$(CONFIG_MV_XOR) += mv_xor.o
 obj-$(CONFIG_DW_DMAC) += dw_dmac.o
+obj-$(CONFIG_MX3_IPU) += ipu/
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index 403dbe781122..a58993011edb 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -329,9 +329,6 @@ struct dma_chan *dma_find_channel(enum dma_transaction_type tx_type)
         struct dma_chan *chan;
         int cpu;
 
-        WARN_ONCE(dmaengine_ref_count == 0,
-                  "client called %s without a reference", __func__);
-
         cpu = get_cpu();
         chan = per_cpu_ptr(channel_table[tx_type], cpu)->chan;
         put_cpu();
@@ -348,9 +345,6 @@ void dma_issue_pending_all(void)
         struct dma_device *device;
         struct dma_chan *chan;
 
-        WARN_ONCE(dmaengine_ref_count == 0,
-                  "client called %s without a reference", __func__);
-
         rcu_read_lock();
         list_for_each_entry_rcu(device, &dma_device_list, global_node) {
                 if (dma_has_cap(DMA_PRIVATE, device->cap_mask))
@@ -961,6 +955,8 @@ void dma_run_dependencies(struct dma_async_tx_descriptor *tx)
         if (!dep)
                 return;
 
+        /* we'll submit tx->next now, so clear the link */
+        tx->next = NULL;
         chan = dep->chan;
 
         /* keep submitting up until a channel switch is detected
diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c
index 3603f1ea5b28..732fa1ec36ab 100644
--- a/drivers/dma/dmatest.c
+++ b/drivers/dma/dmatest.c
@@ -217,6 +217,10 @@ static int dmatest_func(void *data)
         chan = thread->chan;
 
         while (!kthread_should_stop()) {
+                struct dma_device *dev = chan->device;
+                struct dma_async_tx_descriptor *tx;
+                dma_addr_t dma_src, dma_dest;
+
                 total_tests++;
 
                 len = dmatest_random() % test_buf_size + 1;
@@ -226,10 +230,30 @@ static int dmatest_func(void *data)
                 dmatest_init_srcbuf(thread->srcbuf, src_off, len);
                 dmatest_init_dstbuf(thread->dstbuf, dst_off, len);
 
-                cookie = dma_async_memcpy_buf_to_buf(chan,
-                                thread->dstbuf + dst_off,
-                                thread->srcbuf + src_off,
-                                len);
+                dma_src = dma_map_single(dev->dev, thread->srcbuf + src_off,
+                                len, DMA_TO_DEVICE);
+                /* map with DMA_BIDIRECTIONAL to force writeback/invalidate */
+                dma_dest = dma_map_single(dev->dev, thread->dstbuf,
+                                test_buf_size, DMA_BIDIRECTIONAL);
+
+                tx = dev->device_prep_dma_memcpy(chan, dma_dest + dst_off,
+                                dma_src, len,
+                                DMA_CTRL_ACK | DMA_COMPL_SKIP_DEST_UNMAP);
+                if (!tx) {
+                        dma_unmap_single(dev->dev, dma_src, len, DMA_TO_DEVICE);
+                        dma_unmap_single(dev->dev, dma_dest,
+                                        test_buf_size, DMA_BIDIRECTIONAL);
+                        pr_warning("%s: #%u: prep error with src_off=0x%x "
+                                        "dst_off=0x%x len=0x%x\n",
+                                        thread_name, total_tests - 1,
+                                        src_off, dst_off, len);
+                        msleep(100);
+                        failed_tests++;
+                        continue;
+                }
+                tx->callback = NULL;
+                cookie = tx->tx_submit(tx);
+
                 if (dma_submit_error(cookie)) {
                         pr_warning("%s: #%u: submit error %d with src_off=0x%x "
                                         "dst_off=0x%x len=0x%x\n",
@@ -253,6 +277,9 @@ static int dmatest_func(void *data)
                         failed_tests++;
                         continue;
                 }
+                /* Unmap by myself (see DMA_COMPL_SKIP_DEST_UNMAP above) */
+                dma_unmap_single(dev->dev, dma_dest,
+                                test_buf_size, DMA_BIDIRECTIONAL);
 
                 error_count = 0;
 
diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c
index ca70a21afc68..70126a606239 100644
--- a/drivers/dma/fsldma.c
+++ b/drivers/dma/fsldma.c
@@ -822,7 +822,7 @@ static int __devinit fsl_dma_chan_probe(struct fsl_dma_device *fdev,
          */
         WARN_ON(fdev->feature != new_fsl_chan->feature);
 
-        new_fsl_chan->dev = &new_fsl_chan->common.dev->device;
+        new_fsl_chan->dev = fdev->dev;
         new_fsl_chan->reg_base = ioremap(new_fsl_chan->reg.start,
                         new_fsl_chan->reg.end - new_fsl_chan->reg.start + 1);
 
@@ -875,7 +875,8 @@ static int __devinit fsl_dma_chan_probe(struct fsl_dma_device *fdev,
         }
 
         dev_info(fdev->dev, "#%d (%s), irq %d\n", new_fsl_chan->id,
-                                compatible, new_fsl_chan->irq);
+                 compatible,
+                 new_fsl_chan->irq != NO_IRQ ? new_fsl_chan->irq : fdev->irq);
 
         return 0;
 
@@ -890,7 +891,8 @@ err_no_reg:
 
 static void fsl_dma_chan_remove(struct fsl_dma_chan *fchan)
 {
-        free_irq(fchan->irq, fchan);
+        if (fchan->irq != NO_IRQ)
+                free_irq(fchan->irq, fchan);
         list_del(&fchan->common.device_node);
         iounmap(fchan->reg_base);
         kfree(fchan);
diff --git a/drivers/dma/ipu/Makefile b/drivers/dma/ipu/Makefile
new file mode 100644
index 000000000000..6704cf48326d
--- /dev/null
+++ b/drivers/dma/ipu/Makefile
@@ -0,0 +1 @@
+obj-y   += ipu_irq.o ipu_idmac.o
diff --git a/drivers/dma/ipu/ipu_idmac.c b/drivers/dma/ipu/ipu_idmac.c
new file mode 100644
index 000000000000..1f154d08e98f
--- /dev/null
+++ b/drivers/dma/ipu/ipu_idmac.c
@@ -0,0 +1,1740 @@
+/*
+ * Copyright (C) 2008
+ * Guennadi Liakhovetski, DENX Software Engineering, <lg@denx.de>
+ *
+ * Copyright (C) 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/err.h>
+#include <linux/spinlock.h>
+#include <linux/delay.h>
+#include <linux/list.h>
+#include <linux/clk.h>
+#include <linux/vmalloc.h>
+#include <linux/string.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+
+#include <mach/ipu.h>
+
+#include "ipu_intern.h"
+
+#define FS_VF_IN_VALID  0x00000002
+#define FS_ENC_IN_VALID 0x00000001
+
+/*
+ * There can be only one, we could allocate it dynamically, but then we'd have
+ * to add an extra parameter to some functions, and use something as ugly as
+ *      struct ipu *ipu = to_ipu(to_idmac(ichan->dma_chan.device));
+ * in the ISR
+ */
+static struct ipu ipu_data;
+
+#define to_ipu(id) container_of(id, struct ipu, idmac)
+
+static u32 __idmac_read_icreg(struct ipu *ipu, unsigned long reg)
+{
+        return __raw_readl(ipu->reg_ic + reg);
+}
+
+#define idmac_read_icreg(ipu, reg) __idmac_read_icreg(ipu, reg - IC_CONF)
+
+static void __idmac_write_icreg(struct ipu *ipu, u32 value, unsigned long reg)
+{
+        __raw_writel(value, ipu->reg_ic + reg);
+}
+
+#define idmac_write_icreg(ipu, v, reg) __idmac_write_icreg(ipu, v, reg - IC_CONF)
+
+static u32 idmac_read_ipureg(struct ipu *ipu, unsigned long reg)
+{
+        return __raw_readl(ipu->reg_ipu + reg);
+}
+
+static void idmac_write_ipureg(struct ipu *ipu, u32 value, unsigned long reg)
+{
+        __raw_writel(value, ipu->reg_ipu + reg);
+}
+
+/*****************************************************************************
+ * IPU / IC common functions
+ */
+static void dump_idmac_reg(struct ipu *ipu)
+{
+        dev_dbg(ipu->dev, "IDMAC_CONF 0x%x, IC_CONF 0x%x, IDMAC_CHA_EN 0x%x, "
+                "IDMAC_CHA_PRI 0x%x, IDMAC_CHA_BUSY 0x%x\n",
+                idmac_read_icreg(ipu, IDMAC_CONF),
+                idmac_read_icreg(ipu, IC_CONF),
+                idmac_read_icreg(ipu, IDMAC_CHA_EN),
+                idmac_read_icreg(ipu, IDMAC_CHA_PRI),
+                idmac_read_icreg(ipu, IDMAC_CHA_BUSY));
+        dev_dbg(ipu->dev, "BUF0_RDY 0x%x, BUF1_RDY 0x%x, CUR_BUF 0x%x, "
+                "DB_MODE 0x%x, TASKS_STAT 0x%x\n",
+                idmac_read_ipureg(ipu, IPU_CHA_BUF0_RDY),
+                idmac_read_ipureg(ipu, IPU_CHA_BUF1_RDY),
+                idmac_read_ipureg(ipu, IPU_CHA_CUR_BUF),
+                idmac_read_ipureg(ipu, IPU_CHA_DB_MODE_SEL),
+                idmac_read_ipureg(ipu, IPU_TASKS_STAT));
+}
+
+static uint32_t bytes_per_pixel(enum pixel_fmt fmt)
+{
+        switch (fmt) {
+        case IPU_PIX_FMT_GENERIC:       /* generic data */
+        case IPU_PIX_FMT_RGB332:
+        case IPU_PIX_FMT_YUV420P:
+        case IPU_PIX_FMT_YUV422P:
+        default:
+                return 1;
+        case IPU_PIX_FMT_RGB565:
+        case IPU_PIX_FMT_YUYV:
+        case IPU_PIX_FMT_UYVY:
+                return 2;
+        case IPU_PIX_FMT_BGR24:
+        case IPU_PIX_FMT_RGB24:
+                return 3;
+        case IPU_PIX_FMT_GENERIC_32:    /* generic data */
+        case IPU_PIX_FMT_BGR32:
+        case IPU_PIX_FMT_RGB32:
+        case IPU_PIX_FMT_ABGR32:
+                return 4;
+        }
+}
+
+/* Enable / disable direct write to memory by the Camera Sensor Interface */
+static void ipu_ic_enable_task(struct ipu *ipu, enum ipu_channel channel)
+{
+        uint32_t ic_conf, mask;
+
+        switch (channel) {
+        case IDMAC_IC_0:
+                mask = IC_CONF_PRPENC_EN;
+                break;
+        case IDMAC_IC_7:
+                mask = IC_CONF_RWS_EN | IC_CONF_PRPENC_EN;
+                break;
+        default:
+                return;
+        }
+        ic_conf = idmac_read_icreg(ipu, IC_CONF) | mask;
+        idmac_write_icreg(ipu, ic_conf, IC_CONF);
+}
+
+static void ipu_ic_disable_task(struct ipu *ipu, enum ipu_channel channel)
+{
+        uint32_t ic_conf, mask;
+
+        switch (channel) {
+        case IDMAC_IC_0:
+                mask = IC_CONF_PRPENC_EN;
+                break;
+        case IDMAC_IC_7:
+                mask = IC_CONF_RWS_EN | IC_CONF_PRPENC_EN;
+                break;
+        default:
+                return;
+        }
+        ic_conf = idmac_read_icreg(ipu, IC_CONF) & ~mask;
+        idmac_write_icreg(ipu, ic_conf, IC_CONF);
+}
+
+static uint32_t ipu_channel_status(struct ipu *ipu, enum ipu_channel channel)
+{
+        uint32_t stat = TASK_STAT_IDLE;
+        uint32_t task_stat_reg = idmac_read_ipureg(ipu, IPU_TASKS_STAT);
+
+        switch (channel) {
+        case IDMAC_IC_7:
+                stat = (task_stat_reg & TSTAT_CSI2MEM_MASK) >>
+                        TSTAT_CSI2MEM_OFFSET;
+                break;
+        case IDMAC_IC_0:
+        case IDMAC_SDC_0:
+        case IDMAC_SDC_1:
+        default:
+                break;
+        }
+        return stat;
+}
+
+struct chan_param_mem_planar {
+        /* Word 0 */
+        u32     xv:10;
+        u32     yv:10;
+        u32     xb:12;
+
+        u32     yb:12;
+        u32     res1:2;
+        u32     nsb:1;
+        u32     lnpb:6;
+        u32     ubo_l:11;
+
+        u32     ubo_h:15;
+        u32     vbo_l:17;
+
+        u32     vbo_h:9;
+        u32     res2:3;
+        u32     fw:12;
+        u32     fh_l:8;
+
+        u32     fh_h:4;
+        u32     res3:28;
+
+        /* Word 1 */
+        u32     eba0;
+
+        u32     eba1;
+
+        u32     bpp:3;
+        u32     sl:14;
+        u32     pfs:3;
+        u32     bam:3;
+        u32     res4:2;
+        u32     npb:6;
+        u32     res5:1;
+
+        u32     sat:2;
+        u32     res6:30;
+} __attribute__ ((packed));
+
+struct chan_param_mem_interleaved {
+        /* Word 0 */
+        u32     xv:10;
+        u32     yv:10;
+        u32     xb:12;
+
+        u32     yb:12;
+        u32     sce:1;
+        u32     res1:1;
+        u32     nsb:1;
+        u32     lnpb:6;
+        u32     sx:10;
+        u32     sy_l:1;
+
+        u32     sy_h:9;
+        u32     ns:10;
+        u32     sm:10;
+        u32     sdx_l:3;
+
+        u32     sdx_h:2;
+        u32     sdy:5;
+        u32     sdrx:1;
+        u32     sdry:1;
+        u32     sdr1:1;
+        u32     res2:2;
+        u32     fw:12;
+        u32     fh_l:8;
+
+        u32     fh_h:4;
+        u32     res3:28;
+
+        /* Word 1 */
+        u32     eba0;
+
+        u32     eba1;
+
+        u32     bpp:3;
+        u32     sl:14;
+        u32     pfs:3;
+        u32     bam:3;
+        u32     res4:2;
+        u32     npb:6;
+        u32     res5:1;
+
+        u32     sat:2;
+        u32     scc:1;
+        u32     ofs0:5;
+        u32     ofs1:5;
+        u32     ofs2:5;
+        u32     ofs3:5;
+        u32     wid0:3;
+        u32     wid1:3;
+        u32     wid2:3;
+
+        u32     wid3:3;
+        u32     dec_sel:1;
+        u32     res6:28;
+} __attribute__ ((packed));
+
+union chan_param_mem {
+        struct chan_param_mem_planar            pp;
+        struct chan_param_mem_interleaved       ip;
+};
+
+static void ipu_ch_param_set_plane_offset(union chan_param_mem *params,
+                                          u32 u_offset, u32 v_offset)
+{
+        params->pp.ubo_l = u_offset & 0x7ff;
+        params->pp.ubo_h = u_offset >> 11;
+        params->pp.vbo_l = v_offset & 0x1ffff;
+        params->pp.vbo_h = v_offset >> 17;
+}
+
+static void ipu_ch_param_set_size(union chan_param_mem *params,
+                                  uint32_t pixel_fmt, uint16_t width,
+                                  uint16_t height, uint16_t stride)
+{
+        u32 u_offset;
+        u32 v_offset;
+
+        params->pp.fw           = width - 1;
+        params->pp.fh_l         = height - 1;
+        params->pp.fh_h         = (height - 1) >> 8;
+        params->pp.sl           = stride - 1;
+
+        switch (pixel_fmt) {
+        case IPU_PIX_FMT_GENERIC:
+                /*Represents 8-bit Generic data */
+                params->pp.bpp  = 3;
+                params->pp.pfs  = 7;
+                params->pp.npb  = 31;
+                params->pp.sat  = 2;            /* SAT = use 32-bit access */
+                break;
+        case IPU_PIX_FMT_GENERIC_32:
+                /*Represents 32-bit Generic data */
+                params->pp.bpp  = 0;
+                params->pp.pfs  = 7;
+                params->pp.npb  = 7;
+                params->pp.sat  = 2;            /* SAT = use 32-bit access */
+                break;
+        case IPU_PIX_FMT_RGB565:
+                params->ip.bpp  = 2;
+                params->ip.pfs  = 4;
+                params->ip.npb  = 7;
+                params->ip.sat  = 2;            /* SAT = 32-bit access */
+                params->ip.ofs0 = 0;            /* Red bit offset */
+                params->ip.ofs1 = 5;            /* Green bit offset */
+                params->ip.ofs2 = 11;           /* Blue bit offset */
+                params->ip.ofs3 = 16;           /* Alpha bit offset */
+                params->ip.wid0 = 4;            /* Red bit width - 1 */
+                params->ip.wid1 = 5;            /* Green bit width - 1 */
+                params->ip.wid2 = 4;            /* Blue bit width - 1 */
+                break;
+        case IPU_PIX_FMT_BGR24:
+                params->ip.bpp  = 1;            /* 24 BPP & RGB PFS */
+                params->ip.pfs  = 4;
+                params->ip.npb  = 7;
+                params->ip.sat  = 2;            /* SAT = 32-bit access */
+                params->ip.ofs0 = 0;            /* Red bit offset */
+                params->ip.ofs1 = 8;            /* Green bit offset */
+                params->ip.ofs2 = 16;           /* Blue bit offset */
+                params->ip.ofs3 = 24;           /* Alpha bit offset */
+                params->ip.wid0 = 7;            /* Red bit width - 1 */
+                params->ip.wid1 = 7;            /* Green bit width - 1 */
+                params->ip.wid2 = 7;            /* Blue bit width - 1 */
+                break;
+        case IPU_PIX_FMT_RGB24:
+                params->ip.bpp  = 1;            /* 24 BPP & RGB PFS */
+                params->ip.pfs  = 4;
+                params->ip.npb  = 7;
+                params->ip.sat  = 2;            /* SAT = 32-bit access */
+                params->ip.ofs0 = 16;           /* Red bit offset */
+                params->ip.ofs1 = 8;            /* Green bit offset */
+                params->ip.ofs2 = 0;            /* Blue bit offset */
+                params->ip.ofs3 = 24;           /* Alpha bit offset */
+                params->ip.wid0 = 7;            /* Red bit width - 1 */
+                params->ip.wid1 = 7;            /* Green bit width - 1 */
+                params->ip.wid2 = 7;            /* Blue bit width - 1 */
+                break;
+        case IPU_PIX_FMT_BGRA32:
+        case IPU_PIX_FMT_BGR32:
+                params->ip.bpp  = 0;
+                params->ip.pfs  = 4;
+                params->ip.npb  = 7;
+                params->ip.sat  = 2;            /* SAT = 32-bit access */
+                params->ip.ofs0 = 8;            /* Red bit offset */
+                params->ip.ofs1 = 16;           /* Green bit offset */
+                params->ip.ofs2 = 24;           /* Blue bit offset */
+                params->ip.ofs3 = 0;            /* Alpha bit offset */
+                params->ip.wid0 = 7;            /* Red bit width - 1 */
+                params->ip.wid1 = 7;            /* Green bit width - 1 */
+                params->ip.wid2 = 7;            /* Blue bit width - 1 */
+                params->ip.wid3 = 7;            /* Alpha bit width - 1 */
+                break;
+        case IPU_PIX_FMT_RGBA32:
+        case IPU_PIX_FMT_RGB32:
+                params->ip.bpp  = 0;
+                params->ip.pfs  = 4;
+                params->ip.npb  = 7;
+                params->ip.sat  = 2;            /* SAT = 32-bit access */
+                params->ip.ofs0 = 24;           /* Red bit offset */
+                params->ip.ofs1 = 16;           /* Green bit offset */
+                params->ip.ofs2 = 8;            /* Blue bit offset */
+                params->ip.ofs3 = 0;            /* Alpha bit offset */
+                params->ip.wid0 = 7;            /* Red bit width - 1 */
+                params->ip.wid1 = 7;            /* Green bit width - 1 */
+                params->ip.wid2 = 7;            /* Blue bit width - 1 */
+                params->ip.wid3 = 7;            /* Alpha bit width - 1 */
+                break;
+        case IPU_PIX_FMT_ABGR32:
+                params->ip.bpp  = 0;
+                params->ip.pfs  = 4;
+                params->ip.npb  = 7;
+                params->ip.sat  = 2;            /* SAT = 32-bit access */
+                params->ip.ofs0 = 8;            /* Red bit offset */
+                params->ip.ofs1 = 16;           /* Green bit offset */
+                params->ip.ofs2 = 24;           /* Blue bit offset */
+                params->ip.ofs3 = 0;            /* Alpha bit offset */
+                params->ip.wid0 = 7;            /* Red bit width - 1 */
+                params->ip.wid1 = 7;            /* Green bit width - 1 */
+                params->ip.wid2 = 7;            /* Blue bit width - 1 */
+                params->ip.wid3 = 7;            /* Alpha bit width - 1 */
+                break;
+        case IPU_PIX_FMT_UYVY:
+                params->ip.bpp  = 2;
+                params->ip.pfs  = 6;
+                params->ip.npb  = 7;
+                params->ip.sat  = 2;            /* SAT = 32-bit access */
+                break;
+        case IPU_PIX_FMT_YUV420P2:
+        case IPU_PIX_FMT_YUV420P:
+                params->ip.bpp  = 3;
+                params->ip.pfs  = 3;
+                params->ip.npb  = 7;
+                params->ip.sat  = 2;            /* SAT = 32-bit access */
+                u_offset = stride * height;
+                v_offset = u_offset + u_offset / 4;
+                ipu_ch_param_set_plane_offset(params, u_offset, v_offset);
+                break;
+        case IPU_PIX_FMT_YVU422P:
+                params->ip.bpp  = 3;
+                params->ip.pfs  = 2;
+                params->ip.npb  = 7;
+                params->ip.sat  = 2;            /* SAT = 32-bit access */
+                v_offset = stride * height;
+                u_offset = v_offset + v_offset / 2;
+                ipu_ch_param_set_plane_offset(params, u_offset, v_offset);
+                break;
+        case IPU_PIX_FMT_YUV422P:
+                params->ip.bpp  = 3;
+                params->ip.pfs  = 2;
+                params->ip.npb  = 7;
+                params->ip.sat  = 2;            /* SAT = 32-bit access */
+                u_offset = stride * height;
+                v_offset = u_offset + u_offset / 2;
+                ipu_ch_param_set_plane_offset(params, u_offset, v_offset);
+                break;
+        default:
+                dev_err(ipu_data.dev,
+                        "mxc ipu: unimplemented pixel format %d\n", pixel_fmt);
+                break;
+        }
+
+        params->pp.nsb = 1;
+}
+
+static void ipu_ch_param_set_burst_size(union chan_param_mem *params,
+                                        uint16_t burst_pixels)
+{
+        params->pp.npb = burst_pixels - 1;
+};
+
+static void ipu_ch_param_set_buffer(union chan_param_mem *params,
+                                    dma_addr_t buf0, dma_addr_t buf1)
+{
+        params->pp.eba0 = buf0;
+        params->pp.eba1 = buf1;
+};
+
+static void ipu_ch_param_set_rotation(union chan_param_mem *params,
+                                      enum ipu_rotate_mode rotate)
+{
+        params->pp.bam = rotate;
+};
+
+static void ipu_write_param_mem(uint32_t addr, uint32_t *data,
+                                uint32_t num_words)
+{
+        for (; num_words > 0; num_words--) {
+                dev_dbg(ipu_data.dev,
+                        "write param mem - addr = 0x%08X, data = 0x%08X\n",
+                        addr, *data);
+                idmac_write_ipureg(&ipu_data, addr, IPU_IMA_ADDR);
+                idmac_write_ipureg(&ipu_data, *data++, IPU_IMA_DATA);
+                addr++;
+                if ((addr & 0x7) == 5) {
+                        addr &= ~0x7;   /* set to word 0 */
+                        addr += 8;      /* increment to next row */
+                }
+        }
+}
+
+static int calc_resize_coeffs(uint32_t in_size, uint32_t out_size,
+                              uint32_t *resize_coeff,
+                              uint32_t *downsize_coeff)
+{
+        uint32_t temp_size;
+        uint32_t temp_downsize;
+
+        *resize_coeff   = 1 << 13;
+        *downsize_coeff = 1 << 13;
+
+        /* Cannot downsize more than 8:1 */
+        if (out_size << 3 < in_size)
+                return -EINVAL;
+
+        /* compute downsizing coefficient */
+        temp_downsize = 0;
+        temp_size = in_size;
+        while (temp_size >= out_size * 2 && temp_downsize < 2) {
+                temp_size >>= 1;
+                temp_downsize++;
+        }
+        *downsize_coeff = temp_downsize;
+
+        /*
+         * compute resizing coefficient using the following formula:
+         * resize_coeff = M*(SI -1)/(SO - 1)
+         * where M = 2^13, SI - input size, SO - output size
+         */
+        *resize_coeff = (8192L * (temp_size - 1)) / (out_size - 1);
+        if (*resize_coeff >= 16384L) {
+                dev_err(ipu_data.dev, "Warning! Overflow on resize coeff.\n");
+                *resize_coeff = 0x3FFF;
+        }
+
+        dev_dbg(ipu_data.dev, "resizing from %u -> %u pixels, "
+                "downsize=%u, resize=%u.%lu (reg=%u)\n", in_size, out_size,
+                *downsize_coeff, *resize_coeff >= 8192L ? 1 : 0,
+                ((*resize_coeff & 0x1FFF) * 10000L) / 8192L, *resize_coeff);
+
+        return 0;
+}
+
+static enum ipu_color_space format_to_colorspace(enum pixel_fmt fmt)
+{
+        switch (fmt) {
+        case IPU_PIX_FMT_RGB565:
+        case IPU_PIX_FMT_BGR24:
+        case IPU_PIX_FMT_RGB24:
+        case IPU_PIX_FMT_BGR32:
+        case IPU_PIX_FMT_RGB32:
+                return IPU_COLORSPACE_RGB;
+        default:
+                return IPU_COLORSPACE_YCBCR;
+        }
+}
+
+static int ipu_ic_init_prpenc(struct ipu *ipu,
+                              union ipu_channel_param *params, bool src_is_csi)
+{
+        uint32_t reg, ic_conf;
+        uint32_t downsize_coeff, resize_coeff;
+        enum ipu_color_space in_fmt, out_fmt;
+
+        /* Setup vertical resizing */
+        calc_resize_coeffs(params->video.in_height,
+                            params->video.out_height,
+                            &resize_coeff, &downsize_coeff);
+        reg = (downsize_coeff << 30) | (resize_coeff << 16);
+
+        /* Setup horizontal resizing */
+        calc_resize_coeffs(params->video.in_width,
+                            params->video.out_width,
+                            &resize_coeff, &downsize_coeff);
+        reg |= (downsize_coeff << 14) | resize_coeff;
+
+        /* Setup color space conversion */
+        in_fmt = format_to_colorspace(params->video.in_pixel_fmt);
+        out_fmt = format_to_colorspace(params->video.out_pixel_fmt);
+
+        /*
+         * Colourspace conversion unsupported yet - see _init_csc() in
+         * Freescale sources
+         */
+        if (in_fmt != out_fmt) {
+                dev_err(ipu->dev, "Colourspace conversion unsupported!\n");
+                return -EOPNOTSUPP;
+        }
+
+        idmac_write_icreg(ipu, reg, IC_PRP_ENC_RSC);
+
+        ic_conf = idmac_read_icreg(ipu, IC_CONF);
+
+        if (src_is_csi)
+                ic_conf &= ~IC_CONF_RWS_EN;
+        else
+                ic_conf |= IC_CONF_RWS_EN;
+
+        idmac_write_icreg(ipu, ic_conf, IC_CONF);
+
+        return 0;
+}
+
+static uint32_t dma_param_addr(uint32_t dma_ch)
+{
+        /* Channel Parameter Memory */
+        return 0x10000 | (dma_ch << 4);
+};
+
+static void ipu_channel_set_priority(struct ipu *ipu, enum ipu_channel channel,
+                                     bool prio)
+{
+        u32 reg = idmac_read_icreg(ipu, IDMAC_CHA_PRI);
+
+        if (prio)
+                reg |= 1UL << channel;
+        else
+                reg &= ~(1UL << channel);
+
+        idmac_write_icreg(ipu, reg, IDMAC_CHA_PRI);
+
+        dump_idmac_reg(ipu);
+}
+
+static uint32_t ipu_channel_conf_mask(enum ipu_channel channel)
+{
+        uint32_t mask;
+
+        switch (channel) {
+        case IDMAC_IC_0:
+        case IDMAC_IC_7:
+                mask = IPU_CONF_CSI_EN | IPU_CONF_IC_EN;
+                break;
+        case IDMAC_SDC_0:
+        case IDMAC_SDC_1:
+                mask = IPU_CONF_SDC_EN | IPU_CONF_DI_EN;
+                break;
+        default:
+                mask = 0;
+                break;
+        }
+
+        return mask;
+}
+
+/**
+ * ipu_enable_channel() - enable an IPU channel.
+ * @channel:    channel ID.
+ * @return:     0 on success or negative error code on failure.
+ */
+static int ipu_enable_channel(struct idmac *idmac, struct idmac_channel *ichan)
+{
+        struct ipu *ipu = to_ipu(idmac);
+        enum ipu_channel channel = ichan->dma_chan.chan_id;
+        uint32_t reg;
+        unsigned long flags;
+
+        spin_lock_irqsave(&ipu->lock, flags);
+
+        /* Reset to buffer 0 */
+        idmac_write_ipureg(ipu, 1UL << channel, IPU_CHA_CUR_BUF);
+        ichan->active_buffer = 0;
+        ichan->status = IPU_CHANNEL_ENABLED;
+
+        switch (channel) {
+        case IDMAC_SDC_0:
+        case IDMAC_SDC_1:
+        case IDMAC_IC_7:
+                ipu_channel_set_priority(ipu, channel, true);
+        default:
+                break;
+        }
+
+        reg = idmac_read_icreg(ipu, IDMAC_CHA_EN);
+
+        idmac_write_icreg(ipu, reg | (1UL << channel), IDMAC_CHA_EN);
+
+        ipu_ic_enable_task(ipu, channel);
+
+        spin_unlock_irqrestore(&ipu->lock, flags);
+        return 0;
+}
+
+/**
+ * ipu_init_channel_buffer() - initialize a buffer for logical IPU channel.
+ * @channel:    channel ID.
+ * @pixel_fmt:  pixel format of buffer. Pixel format is a FOURCC ASCII code.
+ * @width:      width of buffer in pixels.
+ * @height:     height of buffer in pixels.
+ * @stride:     stride length of buffer in pixels.
+ * @rot_mode:   rotation mode of buffer. A rotation setting other than
+ *              IPU_ROTATE_VERT_FLIP should only be used for input buffers of
+ *              rotation channels.
+ * @phyaddr_0:  buffer 0 physical address.
+ * @phyaddr_1:  buffer 1 physical address. Setting this to a value other than
+ *              NULL enables double buffering mode.
+ * @return:     0 on success or negative error code on failure.
+ */
+static int ipu_init_channel_buffer(struct idmac_channel *ichan,
+                                   enum pixel_fmt pixel_fmt,
+                                   uint16_t width, uint16_t height,
+                                   uint32_t stride,
+                                   enum ipu_rotate_mode rot_mode,
+                                   dma_addr_t phyaddr_0, dma_addr_t phyaddr_1)
+{
+        enum ipu_channel channel = ichan->dma_chan.chan_id;
+        struct idmac *idmac = to_idmac(ichan->dma_chan.device);
+        struct ipu *ipu = to_ipu(idmac);
+        union chan_param_mem params = {};
+        unsigned long flags;
+        uint32_t reg;
+        uint32_t stride_bytes;
+
+        stride_bytes = stride * bytes_per_pixel(pixel_fmt);
+
+        if (stride_bytes % 4) {
+                dev_err(ipu->dev,
+                        "Stride length must be 32-bit aligned, stride = %d, bytes = %d\n",
+                        stride, stride_bytes);
+                return -EINVAL;
+        }
+
+        /* IC channel's stride must be a multiple of 8 pixels */
+        if ((channel <= 13) && (stride % 8)) {
+                dev_err(ipu->dev, "Stride must be 8 pixel multiple\n");
+                return -EINVAL;
+        }
+
+        /* Build parameter memory data for DMA channel */
+        ipu_ch_param_set_size(&params, pixel_fmt, width, height, stride_bytes);
+        ipu_ch_param_set_buffer(&params, phyaddr_0, phyaddr_1);
+        ipu_ch_param_set_rotation(&params, rot_mode);
+        /* Some channels (rotation) have restriction on burst length */
+        switch (channel) {
+        case IDMAC_IC_7:        /* Hangs with burst 8, 16, other values
+                                   invalid - Table 44-30 */
+/*
+                ipu_ch_param_set_burst_size(&params, 8);
+ */
+                break;
+        case IDMAC_SDC_0:
+        case IDMAC_SDC_1:
+                /* In original code only IPU_PIX_FMT_RGB565 was setting burst */
+                ipu_ch_param_set_burst_size(&params, 16);
+                break;
+        case IDMAC_IC_0:
+        default:
+                break;
+        }
+
+        spin_lock_irqsave(&ipu->lock, flags);
+
+        ipu_write_param_mem(dma_param_addr(channel), (uint32_t *)&params, 10);
+
+        reg = idmac_read_ipureg(ipu, IPU_CHA_DB_MODE_SEL);
+
+        if (phyaddr_1)
+                reg |= 1UL << channel;
+        else
+                reg &= ~(1UL << channel);
+
+        idmac_write_ipureg(ipu, reg, IPU_CHA_DB_MODE_SEL);
+
+        ichan->status = IPU_CHANNEL_READY;
+
+        spin_unlock_irqrestore(ipu->lock, flags);
+
+        return 0;
+}
+
+/**
+ * ipu_select_buffer() - mark a channel's buffer as ready.
+ * @channel:    channel ID.
+ * @buffer_n:   buffer number to mark ready.
+ */
+static void ipu_select_buffer(enum ipu_channel channel, int buffer_n)
+{
+        /* No locking - this is a write-one-to-set register, cleared by IPU */
+        if (buffer_n == 0)
+                /* Mark buffer 0 as ready. */
+                idmac_write_ipureg(&ipu_data, 1UL << channel, IPU_CHA_BUF0_RDY);
+        else
+                /* Mark buffer 1 as ready. */
+                idmac_write_ipureg(&ipu_data, 1UL << channel, IPU_CHA_BUF1_RDY);
+}
+
+/**
+ * ipu_update_channel_buffer() - update physical address of a channel buffer.
+ * @channel:    channel ID.
+ * @buffer_n:   buffer number to update.
+ *              0 or 1 are the only valid values.
+ * @phyaddr:    buffer physical address.
+ * @return:     Returns 0 on success or negative error code on failure. This
+ *              function will fail if the buffer is set to ready.
+ */
+/* Called under spin_lock(_irqsave)(&ichan->lock) */
+static int ipu_update_channel_buffer(enum ipu_channel channel,
+                                     int buffer_n, dma_addr_t phyaddr)
+{
+        uint32_t reg;
+        unsigned long flags;
+
+        spin_lock_irqsave(&ipu_data.lock, flags);
+
+        if (buffer_n == 0) {
+                reg = idmac_read_ipureg(&ipu_data, IPU_CHA_BUF0_RDY);
+                if (reg & (1UL << channel)) {
+                        spin_unlock_irqrestore(&ipu_data.lock, flags);
+                        return -EACCES;
+                }
+
+                /* 44.3.3.1.9 - Row Number 1 (WORD1, offset 0) */
+                idmac_write_ipureg(&ipu_data, dma_param_addr(channel) +
+                                   0x0008UL, IPU_IMA_ADDR);
+                idmac_write_ipureg(&ipu_data, phyaddr, IPU_IMA_DATA);
+        } else {
+                reg = idmac_read_ipureg(&ipu_data, IPU_CHA_BUF1_RDY);
+                if (reg & (1UL << channel)) {
+                        spin_unlock_irqrestore(&ipu_data.lock, flags);
+                        return -EACCES;
+                }
+
+                /* Check if double-buffering is already enabled */
+                reg = idmac_read_ipureg(&ipu_data, IPU_CHA_DB_MODE_SEL);
+
+                if (!(reg & (1UL << channel)))
+                        idmac_write_ipureg(&ipu_data, reg | (1UL << channel),
+                                           IPU_CHA_DB_MODE_SEL);
+
+                /* 44.3.3.1.9 - Row Number 1 (WORD1, offset 1) */
+                idmac_write_ipureg(&ipu_data, dma_param_addr(channel) +
+                                   0x0009UL, IPU_IMA_ADDR);
+                idmac_write_ipureg(&ipu_data, phyaddr, IPU_IMA_DATA);
+        }
+
+        spin_unlock_irqrestore(&ipu_data.lock, flags);
+
+        return 0;
+}
+
+/* Called under spin_lock_irqsave(&ichan->lock) */
+static int ipu_submit_channel_buffers(struct idmac_channel *ichan,
+                                      struct idmac_tx_desc *desc)
+{
+        struct scatterlist *sg;
+        int i, ret = 0;
+
+        for (i = 0, sg = desc->sg; i < 2 && sg; i++) {
+                if (!ichan->sg[i]) {
+                        ichan->sg[i] = sg;
+
+                        /*
+                         * On first invocation this shouldn't be necessary, the
+                         * call to ipu_init_channel_buffer() above will set
+                         * addresses for us, so we could make it conditional
+                         * on status >= IPU_CHANNEL_ENABLED, but doing it again
+                         * shouldn't hurt either.
+                         */
+                        ret = ipu_update_channel_buffer(ichan->dma_chan.chan_id, i,
+                                                        sg_dma_address(sg));
+                        if (ret < 0)
+                                return ret;
+
+                        ipu_select_buffer(ichan->dma_chan.chan_id, i);
+
+                        sg = sg_next(sg);
+                }
+        }
+
+        return ret;
+}
+
+static dma_cookie_t idmac_tx_submit(struct dma_async_tx_descriptor *tx)
+{
+        struct idmac_tx_desc *desc = to_tx_desc(tx);
+        struct idmac_channel *ichan = to_idmac_chan(tx->chan);
+        struct idmac *idmac = to_idmac(tx->chan->device);
+        struct ipu *ipu = to_ipu(idmac);
+        dma_cookie_t cookie;
+        unsigned long flags;
+
+        /* Sanity check */
+        if (!list_empty(&desc->list)) {
+                /* The descriptor doesn't belong to client */
+                dev_err(&ichan->dma_chan.dev->device,
+                        "Descriptor %p not prepared!\n", tx);
+                return -EBUSY;
+        }
+
+        mutex_lock(&ichan->chan_mutex);
+
+        if (ichan->status < IPU_CHANNEL_READY) {
+                struct idmac_video_param *video = &ichan->params.video;
+                /*
+                 * Initial buffer assignment - the first two sg-entries from
+                 * the descriptor will end up in the IDMAC buffers
+                 */
+                dma_addr_t dma_1 = sg_is_last(desc->sg) ? 0 :
+                        sg_dma_address(&desc->sg[1]);
+
+                WARN_ON(ichan->sg[0] || ichan->sg[1]);
+
+                cookie = ipu_init_channel_buffer(ichan,
+                                                 video->out_pixel_fmt,
+                                                 video->out_width,
+                                                 video->out_height,
+                                                 video->out_stride,
+                                                 IPU_ROTATE_NONE,
+                                                 sg_dma_address(&desc->sg[0]),
+                                                 dma_1);
+                if (cookie < 0)
+                        goto out;
+        }
+
+        /* ipu->lock can be taken under ichan->lock, but not v.v. */
+        spin_lock_irqsave(&ichan->lock, flags);
+
+        /* submit_buffers() atomically verifies and fills empty sg slots */
+        cookie = ipu_submit_channel_buffers(ichan, desc);
+
+        spin_unlock_irqrestore(&ichan->lock, flags);
+
+        if (cookie < 0)
+                goto out;
+
+        cookie = ichan->dma_chan.cookie;
+
+        if (++cookie < 0)
+                cookie = 1;
+
+        /* from dmaengine.h: "last cookie value returned to client" */
+        ichan->dma_chan.cookie = cookie;
+        tx->cookie = cookie;
+        spin_lock_irqsave(&ichan->lock, flags);
+        list_add_tail(&desc->list, &ichan->queue);
+        spin_unlock_irqrestore(&ichan->lock, flags);
+
+        if (ichan->status < IPU_CHANNEL_ENABLED) {
+                int ret = ipu_enable_channel(idmac, ichan);
+                if (ret < 0) {
+                        cookie = ret;
+                        spin_lock_irqsave(&ichan->lock, flags);
+                        list_del_init(&desc->list);
+                        spin_unlock_irqrestore(&ichan->lock, flags);
+                        tx->cookie = cookie;
+                        ichan->dma_chan.cookie = cookie;
+                }
+        }
+
+        dump_idmac_reg(ipu);
+
+out:
+        mutex_unlock(&ichan->chan_mutex);
+
+        return cookie;
+}
+
+/* Called with ichan->chan_mutex held */
+static int idmac_desc_alloc(struct idmac_channel *ichan, int n)
+{
+        struct idmac_tx_desc *desc = vmalloc(n * sizeof(struct idmac_tx_desc));
+        struct idmac *idmac = to_idmac(ichan->dma_chan.device);
+
+        if (!desc)
+                return -ENOMEM;
+
+        /* No interrupts, just disable the tasklet for a moment */
+        tasklet_disable(&to_ipu(idmac)->tasklet);
+
+        ichan->n_tx_desc = n;
+        ichan->desc = desc;
+        INIT_LIST_HEAD(&ichan->queue);
+        INIT_LIST_HEAD(&ichan->free_list);
+
+        while (n--) {
+                struct dma_async_tx_descriptor *txd = &desc->txd;
+
+                memset(txd, 0, sizeof(*txd));
+                dma_async_tx_descriptor_init(txd, &ichan->dma_chan);
+                txd->tx_submit          = idmac_tx_submit;
+                txd->chan               = &ichan->dma_chan;
+                INIT_LIST_HEAD(&txd->tx_list);
+
+                list_add(&desc->list, &ichan->free_list);
+
+                desc++;
+        }
+
+        tasklet_enable(&to_ipu(idmac)->tasklet);
+
+        return 0;
+}
+
+/**
+ * ipu_init_channel() - initialize an IPU channel.
+ * @idmac:      IPU DMAC context.
+ * @ichan:      pointer to the channel object.
+ * @return      0 on success or negative error code on failure.
+ */
+static int ipu_init_channel(struct idmac *idmac, struct idmac_channel *ichan)
+{
+        union ipu_channel_param *params = &ichan->params;
+        uint32_t ipu_conf;
+        enum ipu_channel channel = ichan->dma_chan.chan_id;
+        unsigned long flags;
+        uint32_t reg;
+        struct ipu *ipu = to_ipu(idmac);
+        int ret = 0, n_desc = 0;
+
+        dev_dbg(ipu->dev, "init channel = %d\n", channel);
+
+        if (channel != IDMAC_SDC_0 && channel != IDMAC_SDC_1 &&
+            channel != IDMAC_IC_7)
+                return -EINVAL;
+
+        spin_lock_irqsave(&ipu->lock, flags);
+
+        switch (channel) {
+        case IDMAC_IC_7:
+                n_desc = 16;
+                reg = idmac_read_icreg(ipu, IC_CONF);
+                idmac_write_icreg(ipu, reg & ~IC_CONF_CSI_MEM_WR_EN, IC_CONF);
+                break;
+        case IDMAC_IC_0:
+                n_desc = 16;
+                reg = idmac_read_ipureg(ipu, IPU_FS_PROC_FLOW);
+                idmac_write_ipureg(ipu, reg & ~FS_ENC_IN_VALID, IPU_FS_PROC_FLOW);
+                ret = ipu_ic_init_prpenc(ipu, params, true);
+                break;
+        case IDMAC_SDC_0:
+        case IDMAC_SDC_1:
+                n_desc = 4;
+        default:
+                break;
+        }
+
+        ipu->channel_init_mask |= 1L << channel;
+
+        /* Enable IPU sub module */
+        ipu_conf = idmac_read_ipureg(ipu, IPU_CONF) |
+                ipu_channel_conf_mask(channel);
+        idmac_write_ipureg(ipu, ipu_conf, IPU_CONF);
+
+        spin_unlock_irqrestore(&ipu->lock, flags);
+
+        if (n_desc && !ichan->desc)
+                ret = idmac_desc_alloc(ichan, n_desc);
+
+        dump_idmac_reg(ipu);
+
+        return ret;
+}
+
+/**
+ * ipu_uninit_channel() - uninitialize an IPU channel.
+ * @idmac:      IPU DMAC context.
+ * @ichan:      pointer to the channel object.
+ */
+static void ipu_uninit_channel(struct idmac *idmac, struct idmac_channel *ichan)
+{
+        enum ipu_channel channel = ichan->dma_chan.chan_id;
+        unsigned long flags;
+        uint32_t reg;
+        unsigned long chan_mask = 1UL << channel;
+        uint32_t ipu_conf;
+        struct ipu *ipu = to_ipu(idmac);
+
+        spin_lock_irqsave(&ipu->lock, flags);
+
+        if (!(ipu->channel_init_mask & chan_mask)) {
+                dev_err(ipu->dev, "Channel already uninitialized %d\n",
+                        channel);
+                spin_unlock_irqrestore(&ipu->lock, flags);
+                return;
+        }
+
+        /* Reset the double buffer */
+        reg = idmac_read_ipureg(ipu, IPU_CHA_DB_MODE_SEL);
+        idmac_write_ipureg(ipu, reg & ~chan_mask, IPU_CHA_DB_MODE_SEL);
+
+        ichan->sec_chan_en = false;
+
+        switch (channel) {
+        case IDMAC_IC_7:
+                reg = idmac_read_icreg(ipu, IC_CONF);
+                idmac_write_icreg(ipu, reg & ~(IC_CONF_RWS_EN | IC_CONF_PRPENC_EN),
+                             IC_CONF);
+                break;
+        case IDMAC_IC_0:
+                reg = idmac_read_icreg(ipu, IC_CONF);
+                idmac_write_icreg(ipu, reg & ~(IC_CONF_PRPENC_EN | IC_CONF_PRPENC_CSC1),
+                                  IC_CONF);
+                break;
+        case IDMAC_SDC_0:
+        case IDMAC_SDC_1:
+        default:
+                break;
+        }
+
+        ipu->channel_init_mask &= ~(1L << channel);
+
+        ipu_conf = idmac_read_ipureg(ipu, IPU_CONF) &
+                ~ipu_channel_conf_mask(channel);
+        idmac_write_ipureg(ipu, ipu_conf, IPU_CONF);
+
+        spin_unlock_irqrestore(&ipu->lock, flags);
+
+        ichan->n_tx_desc = 0;
+        vfree(ichan->desc);
+        ichan->desc = NULL;
+}
+
+/**
+ * ipu_disable_channel() - disable an IPU channel.
+ * @idmac:              IPU DMAC context.
+ * @ichan:              channel object pointer.
+ * @wait_for_stop:      flag to set whether to wait for channel end of frame or
+ *                      return immediately.
+ * @return:             0 on success or negative error code on failure.
+ */
+static int ipu_disable_channel(struct idmac *idmac, struct idmac_channel *ichan,
+                               bool wait_for_stop)
+{
+        enum ipu_channel channel = ichan->dma_chan.chan_id;
+        struct ipu *ipu = to_ipu(idmac);
+        uint32_t reg;
+        unsigned long flags;
+        unsigned long chan_mask = 1UL << channel;
+        unsigned int timeout;
+
+        if (wait_for_stop && channel != IDMAC_SDC_1 && channel != IDMAC_SDC_0) {
+                timeout = 40;
+                /* This waiting always fails. Related to spurious irq problem */
+                while ((idmac_read_icreg(ipu, IDMAC_CHA_BUSY) & chan_mask) ||
+                       (ipu_channel_status(ipu, channel) == TASK_STAT_ACTIVE)) {
+                        timeout--;
+                        msleep(10);
+
+                        if (!timeout) {
+                                dev_dbg(ipu->dev,
+                                        "Warning: timeout waiting for channel %u to "
+                                        "stop: buf0_rdy = 0x%08X, buf1_rdy = 0x%08X, "
+                                        "busy = 0x%08X, tstat = 0x%08X\n", channel,
+                                        idmac_read_ipureg(ipu, IPU_CHA_BUF0_RDY),
+                                        idmac_read_ipureg(ipu, IPU_CHA_BUF1_RDY),
+                                        idmac_read_icreg(ipu, IDMAC_CHA_BUSY),
+                                        idmac_read_ipureg(ipu, IPU_TASKS_STAT));
+                                break;
+                        }
+                }
+                dev_dbg(ipu->dev, "timeout = %d * 10ms\n", 40 - timeout);
+        }
+        /* SDC BG and FG must be disabled before DMA is disabled */
+        if (wait_for_stop && (channel == IDMAC_SDC_0 ||
+                              channel == IDMAC_SDC_1)) {
+                for (timeout = 5;
+                     timeout && !ipu_irq_status(ichan->eof_irq); timeout--)
+                        msleep(5);
+        }
+
+        spin_lock_irqsave(&ipu->lock, flags);
+
+        /* Disable IC task */
+        ipu_ic_disable_task(ipu, channel);
+
+        /* Disable DMA channel(s) */
+        reg = idmac_read_icreg(ipu, IDMAC_CHA_EN);
+        idmac_write_icreg(ipu, reg & ~chan_mask, IDMAC_CHA_EN);
+
+        /*
+         * Problem (observed with channel DMAIC_7): after enabling the channel
+         * and initialising buffers, there comes an interrupt with current still
+         * pointing at buffer 0, whereas it should use buffer 0 first and only
+         * generate an interrupt when it is done, then current should already
+         * point to buffer 1. This spurious interrupt also comes on channel
+         * DMASDC_0. With DMAIC_7 normally, is we just leave the ISR after the
+         * first interrupt, there comes the second with current correctly
+         * pointing to buffer 1 this time. But sometimes this second interrupt
+         * doesn't come and the channel hangs. Clearing BUFx_RDY when disabling
+         * the channel seems to prevent the channel from hanging, but it doesn't
+         * prevent the spurious interrupt. This might also be unsafe. Think
+         * about the IDMAC controller trying to switch to a buffer, when we
+         * clear the ready bit, and re-enable it a moment later.
+         */
+        reg = idmac_read_ipureg(ipu, IPU_CHA_BUF0_RDY);
+        idmac_write_ipureg(ipu, 0, IPU_CHA_BUF0_RDY);
+        idmac_write_ipureg(ipu, reg & ~(1UL << channel), IPU_CHA_BUF0_RDY);
+
+        reg = idmac_read_ipureg(ipu, IPU_CHA_BUF1_RDY);
+        idmac_write_ipureg(ipu, 0, IPU_CHA_BUF1_RDY);
+        idmac_write_ipureg(ipu, reg & ~(1UL << channel), IPU_CHA_BUF1_RDY);
+
+        spin_unlock_irqrestore(&ipu->lock, flags);
+
+        return 0;
+}
+
+/*
+ * We have several possibilities here:
+ * current BUF          next BUF
+ *
+ * not last sg          next not last sg
+ * not last sg          next last sg
+ * last sg              first sg from next descriptor
+ * last sg              NULL
+ *
+ * Besides, the descriptor queue might be empty or not. We process all these
+ * cases carefully.
+ */
+static irqreturn_t idmac_interrupt(int irq, void *dev_id)
+{
+        struct idmac_channel *ichan = dev_id;
+        unsigned int chan_id = ichan->dma_chan.chan_id;
+        struct scatterlist **sg, *sgnext, *sgnew = NULL;
+        /* Next transfer descriptor */
+        struct idmac_tx_desc *desc = NULL, *descnew;
+        dma_async_tx_callback callback;
+        void *callback_param;
+        bool done = false;
+        u32     ready0 = idmac_read_ipureg(&ipu_data, IPU_CHA_BUF0_RDY),
+                ready1 = idmac_read_ipureg(&ipu_data, IPU_CHA_BUF1_RDY),
+                curbuf = idmac_read_ipureg(&ipu_data, IPU_CHA_CUR_BUF);
+
+        /* IDMAC has cleared the respective BUFx_RDY bit, we manage the buffer */
+
+        pr_debug("IDMAC irq %d\n", irq);
+        /* Other interrupts do not interfere with this channel */
+        spin_lock(&ichan->lock);
+
+        if (unlikely(chan_id != IDMAC_SDC_0 && chan_id != IDMAC_SDC_1 &&
+                     ((curbuf >> chan_id) & 1) == ichan->active_buffer)) {
+                int i = 100;
+
+                /* This doesn't help. See comment in ipu_disable_channel() */
+                while (--i) {
+                        curbuf = idmac_read_ipureg(&ipu_data, IPU_CHA_CUR_BUF);
+                        if (((curbuf >> chan_id) & 1) != ichan->active_buffer)
+                                break;
+                        cpu_relax();
+                }
+
+                if (!i) {
+                        spin_unlock(&ichan->lock);
+                        dev_dbg(ichan->dma_chan.device->dev,
+                                "IRQ on active buffer on channel %x, active "
+                                "%d, ready %x, %x, current %x!\n", chan_id,
+                                ichan->active_buffer, ready0, ready1, curbuf);
+                        return IRQ_NONE;
+                }
+        }
+
+        if (unlikely((ichan->active_buffer && (ready1 >> chan_id) & 1) ||
+                     (!ichan->active_buffer && (ready0 >> chan_id) & 1)
+                     )) {
+                spin_unlock(&ichan->lock);
+                dev_dbg(ichan->dma_chan.device->dev,
+                        "IRQ with active buffer still ready on channel %x, "
+                        "active %d, ready %x, %x!\n", chan_id,
+                        ichan->active_buffer, ready0, ready1);
+                return IRQ_NONE;
+        }
+
+        if (unlikely(list_empty(&ichan->queue))) {
+                spin_unlock(&ichan->lock);
+                dev_err(ichan->dma_chan.device->dev,
+                        "IRQ without queued buffers on channel %x, active %d, "
+                        "ready %x, %x!\n", chan_id,
+                        ichan->active_buffer, ready0, ready1);
+                return IRQ_NONE;
+        }
+
+        /*
+         * active_buffer is a software flag, it shows which buffer we are
+         * currently expecting back from the hardware, IDMAC should be
+         * processing the other buffer already
+         */
+        sg = &ichan->sg[ichan->active_buffer];
+        sgnext = ichan->sg[!ichan->active_buffer];
+
+        /*
+         * if sgnext == NULL sg must be the last element in a scatterlist and
+         * queue must be empty
+         */
+        if (unlikely(!sgnext)) {
+                if (unlikely(sg_next(*sg))) {
+                        dev_err(ichan->dma_chan.device->dev,
+                                "Broken buffer-update locking on channel %x!\n",
+                                chan_id);
+                        /* We'll let the user catch up */
+                } else {
+                        /* Underrun */
+                        ipu_ic_disable_task(&ipu_data, chan_id);
+                        dev_dbg(ichan->dma_chan.device->dev,
+                                "Underrun on channel %x\n", chan_id);
+                        ichan->status = IPU_CHANNEL_READY;
+                        /* Continue to check for complete descriptor */
+                }
+        }
+
+        desc = list_entry(ichan->queue.next, struct idmac_tx_desc, list);
+
+        /* First calculate and submit the next sg element */
+        if (likely(sgnext))
+                sgnew = sg_next(sgnext);
+
+        if (unlikely(!sgnew)) {
+                /* Start a new scatterlist, if any queued */
+                if (likely(desc->list.next != &ichan->queue)) {
+                        descnew = list_entry(desc->list.next,
+                                             struct idmac_tx_desc, list);
+                        sgnew = &descnew->sg[0];
+                }
+        }
+
+        if (unlikely(!sg_next(*sg)) || !sgnext) {
+                /*
+                 * Last element in scatterlist done, remove from the queue,
+                 * _init for debugging
+                 */
+                list_del_init(&desc->list);
+                done = true;
+        }
+
+        *sg = sgnew;
+
+        if (likely(sgnew)) {
+                int ret;
+
+                ret = ipu_update_channel_buffer(chan_id, ichan->active_buffer,
+                                                sg_dma_address(*sg));
+                if (ret < 0)
+                        dev_err(ichan->dma_chan.device->dev,
+                                "Failed to update buffer on channel %x buffer %d!\n",
+                                chan_id, ichan->active_buffer);
+                else
+                        ipu_select_buffer(chan_id, ichan->active_buffer);
+        }
+
+        /* Flip the active buffer - even if update above failed */
+        ichan->active_buffer = !ichan->active_buffer;
+        if (done)
+                ichan->completed = desc->txd.cookie;
+
+        callback = desc->txd.callback;
+        callback_param = desc->txd.callback_param;
+
+        spin_unlock(&ichan->lock);
+
+        if (done && (desc->txd.flags & DMA_PREP_INTERRUPT) && callback)
+                callback(callback_param);
+
+        return IRQ_HANDLED;
+}
+
+static void ipu_gc_tasklet(unsigned long arg)
+{
+        struct ipu *ipu = (struct ipu *)arg;
+        int i;
+
+        for (i = 0; i < IPU_CHANNELS_NUM; i++) {
+                struct idmac_channel *ichan = ipu->channel + i;
+                struct idmac_tx_desc *desc;
+                unsigned long flags;
+                int j;
+
+                for (j = 0; j < ichan->n_tx_desc; j++) {
+                        desc = ichan->desc + j;
+                        spin_lock_irqsave(&ichan->lock, flags);
+                        if (async_tx_test_ack(&desc->txd)) {
+                                list_move(&desc->list, &ichan->free_list);
+                                async_tx_clear_ack(&desc->txd);
+                        }
+                        spin_unlock_irqrestore(&ichan->lock, flags);
+                }
+        }
+}
+
+/*
+ * At the time .device_alloc_chan_resources() method is called, we cannot know,
+ * whether the client will accept the channel. Thus we must only check, if we
+ * can satisfy client's request but the only real criterion to verify, whether
+ * the client has accepted our offer is the client_count. That's why we have to
+ * perform the rest of our allocation tasks on the first call to this function.
+ */
+static struct dma_async_tx_descriptor *idmac_prep_slave_sg(struct dma_chan *chan,
+                struct scatterlist *sgl, unsigned int sg_len,
+                enum dma_data_direction direction, unsigned long tx_flags)
+{
+        struct idmac_channel *ichan = to_idmac_chan(chan);
+        struct idmac_tx_desc *desc = NULL;
+        struct dma_async_tx_descriptor *txd = NULL;
+        unsigned long flags;
+
+        /* We only can handle these three channels so far */
+        if (ichan->dma_chan.chan_id != IDMAC_SDC_0 && ichan->dma_chan.chan_id != IDMAC_SDC_1 &&
+            ichan->dma_chan.chan_id != IDMAC_IC_7)
+                return NULL;
+
+        if (direction != DMA_FROM_DEVICE && direction != DMA_TO_DEVICE) {
+                dev_err(chan->device->dev, "Invalid DMA direction %d!\n", direction);
+                return NULL;
+        }
+
+        mutex_lock(&ichan->chan_mutex);
+
+        spin_lock_irqsave(&ichan->lock, flags);
+        if (!list_empty(&ichan->free_list)) {
+                desc = list_entry(ichan->free_list.next,
+                                  struct idmac_tx_desc, list);
+
+                list_del_init(&desc->list);
+
+                desc->sg_len    = sg_len;
+                desc->sg        = sgl;
+                txd             = &desc->txd;
+                txd->flags      = tx_flags;
+        }
+        spin_unlock_irqrestore(&ichan->lock, flags);
+
+        mutex_unlock(&ichan->chan_mutex);
+
+        tasklet_schedule(&to_ipu(to_idmac(chan->device))->tasklet);
+
+        return txd;
+}
+
+/* Re-select the current buffer and re-activate the channel */
+static void idmac_issue_pending(struct dma_chan *chan)
+{
+        struct idmac_channel *ichan = to_idmac_chan(chan);
+        struct idmac *idmac = to_idmac(chan->device);
+        struct ipu *ipu = to_ipu(idmac);
+        unsigned long flags;
+
+        /* This is not always needed, but doesn't hurt either */
+        spin_lock_irqsave(&ipu->lock, flags);
+        ipu_select_buffer(ichan->dma_chan.chan_id, ichan->active_buffer);
+        spin_unlock_irqrestore(&ipu->lock, flags);
+
+        /*
+         * Might need to perform some parts of initialisation from
+         * ipu_enable_channel(), but not all, we do not want to reset to buffer
+         * 0, don't need to set priority again either, but re-enabling the task
+         * and the channel might be a good idea.
+         */
+}
+
+static void __idmac_terminate_all(struct dma_chan *chan)
+{
+        struct idmac_channel *ichan = to_idmac_chan(chan);
+        struct idmac *idmac = to_idmac(chan->device);
+        unsigned long flags;
+        int i;
+
+        ipu_disable_channel(idmac, ichan,
+                            ichan->status >= IPU_CHANNEL_ENABLED);
+
+        tasklet_disable(&to_ipu(idmac)->tasklet);
+
+        /* ichan->queue is modified in ISR, have to spinlock */
+        spin_lock_irqsave(&ichan->lock, flags);
+        list_splice_init(&ichan->queue, &ichan->free_list);
+
+        if (ichan->desc)
+                for (i = 0; i < ichan->n_tx_desc; i++) {
+                        struct idmac_tx_desc *desc = ichan->desc + i;
+                        if (list_empty(&desc->list))
+                                /* Descriptor was prepared, but not submitted */
+                                list_add(&desc->list,
+                                         &ichan->free_list);
+
+                        async_tx_clear_ack(&desc->txd);
+                }
+
+        ichan->sg[0] = NULL;
+        ichan->sg[1] = NULL;
+        spin_unlock_irqrestore(&ichan->lock, flags);
+
+        tasklet_enable(&to_ipu(idmac)->tasklet);
+
+        ichan->status = IPU_CHANNEL_INITIALIZED;
+}
+
+static void idmac_terminate_all(struct dma_chan *chan)
+{
+        struct idmac_channel *ichan = to_idmac_chan(chan);
+
+        mutex_lock(&ichan->chan_mutex);
+
+        __idmac_terminate_all(chan);
+
+        mutex_unlock(&ichan->chan_mutex);
+}
+
+static int idmac_alloc_chan_resources(struct dma_chan *chan)
+{
+        struct idmac_channel *ichan = to_idmac_chan(chan);
+        struct idmac *idmac = to_idmac(chan->device);
+        int ret;
+
+        /* dmaengine.c now guarantees to only offer free channels */
+        BUG_ON(chan->client_count > 1);
+        WARN_ON(ichan->status != IPU_CHANNEL_FREE);
+
+        chan->cookie            = 1;
+        ichan->completed        = -ENXIO;
+
+        ret = ipu_irq_map(ichan->dma_chan.chan_id);
+        if (ret < 0)
+                goto eimap;
+
+        ichan->eof_irq = ret;
+        ret = request_irq(ichan->eof_irq, idmac_interrupt, 0,
+                          ichan->eof_name, ichan);
+        if (ret < 0)
+                goto erirq;
+
+        ret = ipu_init_channel(idmac, ichan);
+        if (ret < 0)
+                goto eichan;
+
+        ichan->status = IPU_CHANNEL_INITIALIZED;
+
+        dev_dbg(&ichan->dma_chan.dev->device, "Found channel 0x%x, irq %d\n",
+                ichan->dma_chan.chan_id, ichan->eof_irq);
+
+        return ret;
+
+eichan:
+        free_irq(ichan->eof_irq, ichan);
+erirq:
+        ipu_irq_unmap(ichan->dma_chan.chan_id);
+eimap:
+        return ret;
+}
+
+static void idmac_free_chan_resources(struct dma_chan *chan)
+{
+        struct idmac_channel *ichan = to_idmac_chan(chan);
+        struct idmac *idmac = to_idmac(chan->device);
+
+        mutex_lock(&ichan->chan_mutex);
+
+        __idmac_terminate_all(chan);
+
+        if (ichan->status > IPU_CHANNEL_FREE) {
+                free_irq(ichan->eof_irq, ichan);
+                ipu_irq_unmap(ichan->dma_chan.chan_id);
+        }
+
+        ichan->status = IPU_CHANNEL_FREE;
+
+        ipu_uninit_channel(idmac, ichan);
+
+        mutex_unlock(&ichan->chan_mutex);
+
+        tasklet_schedule(&to_ipu(idmac)->tasklet);
+}
+
+static enum dma_status idmac_is_tx_complete(struct dma_chan *chan,
+                dma_cookie_t cookie, dma_cookie_t *done, dma_cookie_t *used)
+{
+        struct idmac_channel *ichan = to_idmac_chan(chan);
+
+        if (done)
+                *done = ichan->completed;
+        if (used)
+                *used = chan->cookie;
+        if (cookie != chan->cookie)
+                return DMA_ERROR;
+        return DMA_SUCCESS;
+}
+
+static int __init ipu_idmac_init(struct ipu *ipu)
+{
+        struct idmac *idmac = &ipu->idmac;
+        struct dma_device *dma = &idmac->dma;
+        int i;
+
+        dma_cap_set(DMA_SLAVE, dma->cap_mask);
+        dma_cap_set(DMA_PRIVATE, dma->cap_mask);
+
+        /* Compulsory common fields */
+        dma->dev                                = ipu->dev;
+        dma->device_alloc_chan_resources        = idmac_alloc_chan_resources;
+        dma->device_free_chan_resources         = idmac_free_chan_resources;
+        dma->device_is_tx_complete              = idmac_is_tx_complete;
+        dma->device_issue_pending               = idmac_issue_pending;
+
+        /* Compulsory for DMA_SLAVE fields */
+        dma->device_prep_slave_sg               = idmac_prep_slave_sg;
+        dma->device_terminate_all               = idmac_terminate_all;
+
+        INIT_LIST_HEAD(&dma->channels);
+        for (i = 0; i < IPU_CHANNELS_NUM; i++) {
+                struct idmac_channel *ichan = ipu->channel + i;
+                struct dma_chan *dma_chan = &ichan->dma_chan;
+
+                spin_lock_init(&ichan->lock);
+                mutex_init(&ichan->chan_mutex);
+
+                ichan->status           = IPU_CHANNEL_FREE;
+                ichan->sec_chan_en      = false;
+                ichan->completed        = -ENXIO;
+                snprintf(ichan->eof_name, sizeof(ichan->eof_name), "IDMAC EOF %d", i);
+
+                dma_chan->device        = &idmac->dma;
+                dma_chan->cookie        = 1;
+                dma_chan->chan_id       = i;
+                list_add_tail(&ichan->dma_chan.device_node, &dma->channels);
+        }
+
+        idmac_write_icreg(ipu, 0x00000070, IDMAC_CONF);
+
+        return dma_async_device_register(&idmac->dma);
+}
+
+static void ipu_idmac_exit(struct ipu *ipu)
+{
+        int i;
+        struct idmac *idmac = &ipu->idmac;
+
+        for (i = 0; i < IPU_CHANNELS_NUM; i++) {
+                struct idmac_channel *ichan = ipu->channel + i;
+
+                idmac_terminate_all(&ichan->dma_chan);
+                idmac_prep_slave_sg(&ichan->dma_chan, NULL, 0, DMA_NONE, 0);
+        }
+
+        dma_async_device_unregister(&idmac->dma);
+}
+
+/*****************************************************************************
+ * IPU common probe / remove
+ */
+
+static int ipu_probe(struct platform_device *pdev)
+{
+        struct ipu_platform_data *pdata = pdev->dev.platform_data;
+        struct resource *mem_ipu, *mem_ic;
+        int ret;
+
+        spin_lock_init(&ipu_data.lock);
+
+        mem_ipu = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+        mem_ic  = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+        if (!pdata || !mem_ipu || !mem_ic)
+                return -EINVAL;
+
+        ipu_data.dev = &pdev->dev;
+
+        platform_set_drvdata(pdev, &ipu_data);
+
+        ret = platform_get_irq(pdev, 0);
+        if (ret < 0)
+                goto err_noirq;
+
+        ipu_data.irq_fn = ret;
+        ret = platform_get_irq(pdev, 1);
+        if (ret < 0)
+                goto err_noirq;
+
+        ipu_data.irq_err = ret;
+        ipu_data.irq_base = pdata->irq_base;
+
+        dev_dbg(&pdev->dev, "fn irq %u, err irq %u, irq-base %u\n",
+                ipu_data.irq_fn, ipu_data.irq_err, ipu_data.irq_base);
+
+        /* Remap IPU common registers */
+        ipu_data.reg_ipu = ioremap(mem_ipu->start,
+                                   mem_ipu->end - mem_ipu->start + 1);
+        if (!ipu_data.reg_ipu) {
+                ret = -ENOMEM;
+                goto err_ioremap_ipu;
+        }
+
+        /* Remap Image Converter and Image DMA Controller registers */
+        ipu_data.reg_ic = ioremap(mem_ic->start,
+                                  mem_ic->end - mem_ic->start + 1);
+        if (!ipu_data.reg_ic) {
+                ret = -ENOMEM;
+                goto err_ioremap_ic;
+        }
+
+        /* Get IPU clock */
+        ipu_data.ipu_clk = clk_get(&pdev->dev, "ipu_clk");
+        if (IS_ERR(ipu_data.ipu_clk)) {
+                ret = PTR_ERR(ipu_data.ipu_clk);
+                goto err_clk_get;
+        }
+
+        /* Make sure IPU HSP clock is running */
+        clk_enable(ipu_data.ipu_clk);
+
+        /* Disable all interrupts */
+        idmac_write_ipureg(&ipu_data, 0, IPU_INT_CTRL_1);
+        idmac_write_ipureg(&ipu_data, 0, IPU_INT_CTRL_2);
+        idmac_write_ipureg(&ipu_data, 0, IPU_INT_CTRL_3);
+        idmac_write_ipureg(&ipu_data, 0, IPU_INT_CTRL_4);
+        idmac_write_ipureg(&ipu_data, 0, IPU_INT_CTRL_5);
+
+        dev_dbg(&pdev->dev, "%s @ 0x%08lx, fn irq %u, err irq %u\n", pdev->name,
+                (unsigned long)mem_ipu->start, ipu_data.irq_fn, ipu_data.irq_err);
+
+        ret = ipu_irq_attach_irq(&ipu_data, pdev);
+        if (ret < 0)
+                goto err_attach_irq;
+
+        /* Initialize DMA engine */
+        ret = ipu_idmac_init(&ipu_data);
+        if (ret < 0)
+                goto err_idmac_init;
+
+        tasklet_init(&ipu_data.tasklet, ipu_gc_tasklet, (unsigned long)&ipu_data);
+
+        ipu_data.dev = &pdev->dev;
+
+        dev_dbg(ipu_data.dev, "IPU initialized\n");
+
+        return 0;
+
+err_idmac_init:
+err_attach_irq:
+        ipu_irq_detach_irq(&ipu_data, pdev);
+        clk_disable(ipu_data.ipu_clk);
+        clk_put(ipu_data.ipu_clk);
+err_clk_get:
+        iounmap(ipu_data.reg_ic);
+err_ioremap_ic:
+        iounmap(ipu_data.reg_ipu);
+err_ioremap_ipu:
+err_noirq:
+        dev_err(&pdev->dev, "Failed to probe IPU: %d\n", ret);
+        return ret;
+}
+
+static int ipu_remove(struct platform_device *pdev)
+{
+        struct ipu *ipu = platform_get_drvdata(pdev);
+
+        ipu_idmac_exit(ipu);
+        ipu_irq_detach_irq(ipu, pdev);
+        clk_disable(ipu->ipu_clk);
+        clk_put(ipu->ipu_clk);
+        iounmap(ipu->reg_ic);
+        iounmap(ipu->reg_ipu);
+        tasklet_kill(&ipu->tasklet);
+        platform_set_drvdata(pdev, NULL);
+
+        return 0;
+}
+
+/*
+ * We need two MEM resources - with IPU-common and Image Converter registers,
+ * including PF_CONF and IDMAC_* registers, and two IRQs - function and error
+ */
+static struct platform_driver ipu_platform_driver = {
+        .driver = {
+                .name   = "ipu-core",
+                .owner  = THIS_MODULE,
+        },
+        .remove         = ipu_remove,
+};
+
+static int __init ipu_init(void)
+{
+        return platform_driver_probe(&ipu_platform_driver, ipu_probe);
+}
+subsys_initcall(ipu_init);
+
+MODULE_DESCRIPTION("IPU core driver");
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Guennadi Liakhovetski <lg@denx.de>");
+MODULE_ALIAS("platform:ipu-core");
diff --git a/drivers/dma/ipu/ipu_intern.h b/drivers/dma/ipu/ipu_intern.h
new file mode 100644
index 000000000000..545cf11a94ab
--- /dev/null
+++ b/drivers/dma/ipu/ipu_intern.h
@@ -0,0 +1,176 @@
+/*
+ * Copyright (C) 2008
+ * Guennadi Liakhovetski, DENX Software Engineering, <lg@denx.de>
+ *
+ * Copyright (C) 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _IPU_INTERN_H_
+#define _IPU_INTERN_H_
+
+#include <linux/dmaengine.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+
+/* IPU Common registers */
+#define IPU_CONF                0x00
+#define IPU_CHA_BUF0_RDY        0x04
+#define IPU_CHA_BUF1_RDY        0x08
+#define IPU_CHA_DB_MODE_SEL     0x0C
+#define IPU_CHA_CUR_BUF         0x10
+#define IPU_FS_PROC_FLOW        0x14
+#define IPU_FS_DISP_FLOW        0x18
+#define IPU_TASKS_STAT          0x1C
+#define IPU_IMA_ADDR            0x20
+#define IPU_IMA_DATA            0x24
+#define IPU_INT_CTRL_1          0x28
+#define IPU_INT_CTRL_2          0x2C
+#define IPU_INT_CTRL_3          0x30
+#define IPU_INT_CTRL_4          0x34
+#define IPU_INT_CTRL_5          0x38
+#define IPU_INT_STAT_1          0x3C
+#define IPU_INT_STAT_2          0x40
+#define IPU_INT_STAT_3          0x44
+#define IPU_INT_STAT_4          0x48
+#define IPU_INT_STAT_5          0x4C
+#define IPU_BRK_CTRL_1          0x50
+#define IPU_BRK_CTRL_2          0x54
+#define IPU_BRK_STAT            0x58
+#define IPU_DIAGB_CTRL          0x5C
+
+/* IPU_CONF Register bits */
+#define IPU_CONF_CSI_EN         0x00000001
+#define IPU_CONF_IC_EN          0x00000002
+#define IPU_CONF_ROT_EN         0x00000004
+#define IPU_CONF_PF_EN          0x00000008
+#define IPU_CONF_SDC_EN         0x00000010
+#define IPU_CONF_ADC_EN         0x00000020
+#define IPU_CONF_DI_EN          0x00000040
+#define IPU_CONF_DU_EN          0x00000080
+#define IPU_CONF_PXL_ENDIAN     0x00000100
+
+/* Image Converter Registers */
+#define IC_CONF                 0x88
+#define IC_PRP_ENC_RSC          0x8C
+#define IC_PRP_VF_RSC           0x90
+#define IC_PP_RSC               0x94
+#define IC_CMBP_1               0x98
+#define IC_CMBP_2               0x9C
+#define PF_CONF                 0xA0
+#define IDMAC_CONF              0xA4
+#define IDMAC_CHA_EN            0xA8
+#define IDMAC_CHA_PRI           0xAC
+#define IDMAC_CHA_BUSY          0xB0
+
+/* Image Converter Register bits */
+#define IC_CONF_PRPENC_EN       0x00000001
+#define IC_CONF_PRPENC_CSC1     0x00000002
+#define IC_CONF_PRPENC_ROT_EN   0x00000004
+#define IC_CONF_PRPVF_EN        0x00000100
+#define IC_CONF_PRPVF_CSC1      0x00000200
+#define IC_CONF_PRPVF_CSC2      0x00000400
+#define IC_CONF_PRPVF_CMB       0x00000800
+#define IC_CONF_PRPVF_ROT_EN    0x00001000
+#define IC_CONF_PP_EN           0x00010000
+#define IC_CONF_PP_CSC1         0x00020000
+#define IC_CONF_PP_CSC2         0x00040000
+#define IC_CONF_PP_CMB          0x00080000
+#define IC_CONF_PP_ROT_EN       0x00100000
+#define IC_CONF_IC_GLB_LOC_A    0x10000000
+#define IC_CONF_KEY_COLOR_EN    0x20000000
+#define IC_CONF_RWS_EN          0x40000000
+#define IC_CONF_CSI_MEM_WR_EN   0x80000000
+
+#define IDMA_CHAN_INVALID       0x000000FF
+#define IDMA_IC_0               0x00000001
+#define IDMA_IC_1               0x00000002
+#define IDMA_IC_2               0x00000004
+#define IDMA_IC_3               0x00000008
+#define IDMA_IC_4               0x00000010
+#define IDMA_IC_5               0x00000020
+#define IDMA_IC_6               0x00000040
+#define IDMA_IC_7               0x00000080
+#define IDMA_IC_8               0x00000100
+#define IDMA_IC_9               0x00000200
+#define IDMA_IC_10              0x00000400
+#define IDMA_IC_11              0x00000800
+#define IDMA_IC_12              0x00001000
+#define IDMA_IC_13              0x00002000
+#define IDMA_SDC_BG             0x00004000
+#define IDMA_SDC_FG             0x00008000
+#define IDMA_SDC_MASK           0x00010000
+#define IDMA_SDC_PARTIAL        0x00020000
+#define IDMA_ADC_SYS1_WR        0x00040000
+#define IDMA_ADC_SYS2_WR        0x00080000
+#define IDMA_ADC_SYS1_CMD       0x00100000
+#define IDMA_ADC_SYS2_CMD       0x00200000
+#define IDMA_ADC_SYS1_RD        0x00400000
+#define IDMA_ADC_SYS2_RD        0x00800000
+#define IDMA_PF_QP              0x01000000
+#define IDMA_PF_BSP             0x02000000
+#define IDMA_PF_Y_IN            0x04000000
+#define IDMA_PF_U_IN            0x08000000
+#define IDMA_PF_V_IN            0x10000000
+#define IDMA_PF_Y_OUT           0x20000000
+#define IDMA_PF_U_OUT           0x40000000
+#define IDMA_PF_V_OUT           0x80000000
+
+#define TSTAT_PF_H264_PAUSE     0x00000001
+#define TSTAT_CSI2MEM_MASK      0x0000000C
+#define TSTAT_CSI2MEM_OFFSET    2
+#define TSTAT_VF_MASK           0x00000600
+#define TSTAT_VF_OFFSET         9
+#define TSTAT_VF_ROT_MASK       0x000C0000
+#define TSTAT_VF_ROT_OFFSET     18
+#define TSTAT_ENC_MASK          0x00000180
+#define TSTAT_ENC_OFFSET        7
+#define TSTAT_ENC_ROT_MASK      0x00030000
+#define TSTAT_ENC_ROT_OFFSET    16
+#define TSTAT_PP_MASK           0x00001800
+#define TSTAT_PP_OFFSET         11
+#define TSTAT_PP_ROT_MASK       0x00300000
+#define TSTAT_PP_ROT_OFFSET     20
+#define TSTAT_PF_MASK           0x00C00000
+#define TSTAT_PF_OFFSET         22
+#define TSTAT_ADCSYS1_MASK      0x03000000
+#define TSTAT_ADCSYS1_OFFSET    24
+#define TSTAT_ADCSYS2_MASK      0x0C000000
+#define TSTAT_ADCSYS2_OFFSET    26
+
+#define TASK_STAT_IDLE          0
+#define TASK_STAT_ACTIVE        1
+#define TASK_STAT_WAIT4READY    2
+
+struct idmac {
+        struct dma_device       dma;
+};
+
+struct ipu {
+        void __iomem            *reg_ipu;
+        void __iomem            *reg_ic;
+        unsigned int            irq_fn;         /* IPU Function IRQ to the CPU */
+        unsigned int            irq_err;        /* IPU Error IRQ to the CPU */
+        unsigned int            irq_base;       /* Beginning of the IPU IRQ range */
+        unsigned long           channel_init_mask;
+        spinlock_t              lock;
+        struct clk              *ipu_clk;
+        struct device           *dev;
+        struct idmac            idmac;
+        struct idmac_channel    channel[IPU_CHANNELS_NUM];
+        struct tasklet_struct   tasklet;
+};
+
+#define to_idmac(d) container_of(d, struct idmac, dma)
+
+extern int ipu_irq_attach_irq(struct ipu *ipu, struct platform_device *dev);
+extern void ipu_irq_detach_irq(struct ipu *ipu, struct platform_device *dev);
+
+extern bool ipu_irq_status(uint32_t irq);
+extern int ipu_irq_map(unsigned int source);
+extern int ipu_irq_unmap(unsigned int source);
+
+#endif
diff --git a/drivers/dma/ipu/ipu_irq.c b/drivers/dma/ipu/ipu_irq.c
new file mode 100644
index 000000000000..83f532cc767f
--- /dev/null
+++ b/drivers/dma/ipu/ipu_irq.c
@@ -0,0 +1,413 @@
+/*
+ * Copyright (C) 2008
+ * Guennadi Liakhovetski, DENX Software Engineering, <lg@denx.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/spinlock.h>
+#include <linux/delay.h>
+#include <linux/clk.h>
+#include <linux/irq.h>
+#include <linux/io.h>
+
+#include <mach/ipu.h>
+
+#include "ipu_intern.h"
+
+/*
+ * Register read / write - shall be inlined by the compiler
+ */
+static u32 ipu_read_reg(struct ipu *ipu, unsigned long reg)
+{
+        return __raw_readl(ipu->reg_ipu + reg);
+}
+
+static void ipu_write_reg(struct ipu *ipu, u32 value, unsigned long reg)
+{
+        __raw_writel(value, ipu->reg_ipu + reg);
+}
+
+
+/*
+ * IPU IRQ chip driver
+ */
+
+#define IPU_IRQ_NR_FN_BANKS 3
+#define IPU_IRQ_NR_ERR_BANKS 2
+#define IPU_IRQ_NR_BANKS (IPU_IRQ_NR_FN_BANKS + IPU_IRQ_NR_ERR_BANKS)
+
+struct ipu_irq_bank {
+        unsigned int    control;
+        unsigned int    status;
+        spinlock_t      lock;
+        struct ipu      *ipu;
+};
+
+static struct ipu_irq_bank irq_bank[IPU_IRQ_NR_BANKS] = {
+        /* 3 groups of functional interrupts */
+        {
+                .control        = IPU_INT_CTRL_1,
+                .status         = IPU_INT_STAT_1,
+        }, {
+                .control        = IPU_INT_CTRL_2,
+                .status         = IPU_INT_STAT_2,
+        }, {
+                .control        = IPU_INT_CTRL_3,
+                .status         = IPU_INT_STAT_3,
+        },
+        /* 2 groups of error interrupts */
+        {
+                .control        = IPU_INT_CTRL_4,
+                .status         = IPU_INT_STAT_4,
+        }, {
+                .control        = IPU_INT_CTRL_5,
+                .status         = IPU_INT_STAT_5,
+        },
+};
+
+struct ipu_irq_map {
+        unsigned int            irq;
+        int                     source;
+        struct ipu_irq_bank     *bank;
+        struct ipu              *ipu;
+};
+
+static struct ipu_irq_map irq_map[CONFIG_MX3_IPU_IRQS];
+/* Protects allocations from the above array of maps */
+static DEFINE_MUTEX(map_lock);
+/* Protects register accesses and individual mappings */
+static DEFINE_SPINLOCK(bank_lock);
+
+static struct ipu_irq_map *src2map(unsigned int src)
+{
+        int i;
+
+        for (i = 0; i < CONFIG_MX3_IPU_IRQS; i++)
+                if (irq_map[i].source == src)
+                        return irq_map + i;
+
+        return NULL;
+}
+
+static void ipu_irq_unmask(unsigned int irq)
+{
+        struct ipu_irq_map *map = get_irq_chip_data(irq);
+        struct ipu_irq_bank *bank;
+        uint32_t reg;
+        unsigned long lock_flags;
+
+        spin_lock_irqsave(&bank_lock, lock_flags);
+
+        bank = map->bank;
+        if (!bank) {
+                spin_unlock_irqrestore(&bank_lock, lock_flags);
+                pr_err("IPU: %s(%u) - unmapped!\n", __func__, irq);
+                return;
+        }
+
+        reg = ipu_read_reg(bank->ipu, bank->control);
+        reg |= (1UL << (map->source & 31));
+        ipu_write_reg(bank->ipu, reg, bank->control);
+
+        spin_unlock_irqrestore(&bank_lock, lock_flags);
+}
+
+static void ipu_irq_mask(unsigned int irq)
+{
+        struct ipu_irq_map *map = get_irq_chip_data(irq);
+        struct ipu_irq_bank *bank;
+        uint32_t reg;
+        unsigned long lock_flags;
+
+        spin_lock_irqsave(&bank_lock, lock_flags);
+
+        bank = map->bank;
+        if (!bank) {
+                spin_unlock_irqrestore(&bank_lock, lock_flags);
+                pr_err("IPU: %s(%u) - unmapped!\n", __func__, irq);
+                return;
+        }
+
+        reg = ipu_read_reg(bank->ipu, bank->control);
+        reg &= ~(1UL << (map->source & 31));
+        ipu_write_reg(bank->ipu, reg, bank->control);
+
+        spin_unlock_irqrestore(&bank_lock, lock_flags);
+}
+
+static void ipu_irq_ack(unsigned int irq)
+{
+        struct ipu_irq_map *map = get_irq_chip_data(irq);
+        struct ipu_irq_bank *bank;
+        unsigned long lock_flags;
+
+        spin_lock_irqsave(&bank_lock, lock_flags);
+
+        bank = map->bank;
+        if (!bank) {
+                spin_unlock_irqrestore(&bank_lock, lock_flags);
+                pr_err("IPU: %s(%u) - unmapped!\n", __func__, irq);
+                return;
+        }
+
+        ipu_write_reg(bank->ipu, 1UL << (map->source & 31), bank->status);
+        spin_unlock_irqrestore(&bank_lock, lock_flags);
+}
+
+/**
+ * ipu_irq_status() - returns the current interrupt status of the specified IRQ.
+ * @irq:        interrupt line to get status for.
+ * @return:     true if the interrupt is pending/asserted or false if the
+ *              interrupt is not pending.
+ */
+bool ipu_irq_status(unsigned int irq)
+{
+        struct ipu_irq_map *map = get_irq_chip_data(irq);
+        struct ipu_irq_bank *bank;
+        unsigned long lock_flags;
+        bool ret;
+
+        spin_lock_irqsave(&bank_lock, lock_flags);
+        bank = map->bank;
+        ret = bank && ipu_read_reg(bank->ipu, bank->status) &
+                (1UL << (map->source & 31));
+        spin_unlock_irqrestore(&bank_lock, lock_flags);
+
+        return ret;
+}
+
+/**
+ * ipu_irq_map() - map an IPU interrupt source to an IRQ number
+ * @source:     interrupt source bit position (see below)
+ * @return:     mapped IRQ number or negative error code
+ *
+ * The source parameter has to be explained further. On i.MX31 IPU has 137 IRQ
+ * sources, they are broken down in 5 32-bit registers, like 32, 32, 24, 32, 17.
+ * However, the source argument of this function is not the sequence number of
+ * the possible IRQ, but rather its bit position. So, first interrupt in fourth
+ * register has source number 96, and not 88. This makes calculations easier,
+ * and also provides forward compatibility with any future IPU implementations
+ * with any interrupt bit assignments.
+ */
+int ipu_irq_map(unsigned int source)
+{
+        int i, ret = -ENOMEM;
+        struct ipu_irq_map *map;
+
+        might_sleep();
+
+        mutex_lock(&map_lock);
+        map = src2map(source);
+        if (map) {
+                pr_err("IPU: Source %u already mapped to IRQ %u\n", source, map->irq);
+                ret = -EBUSY;
+                goto out;
+        }
+
+        for (i = 0; i < CONFIG_MX3_IPU_IRQS; i++) {
+                if (irq_map[i].source < 0) {
+                        unsigned long lock_flags;
+
+                        spin_lock_irqsave(&bank_lock, lock_flags);
+                        irq_map[i].source = source;
+                        irq_map[i].bank = irq_bank + source / 32;
+                        spin_unlock_irqrestore(&bank_lock, lock_flags);
+
+                        ret = irq_map[i].irq;
+                        pr_debug("IPU: mapped source %u to IRQ %u\n",
+                                 source, ret);
+                        break;
+                }
+        }
+out:
+        mutex_unlock(&map_lock);
+
+        if (ret < 0)
+                pr_err("IPU: couldn't map source %u: %d\n", source, ret);
+
+        return ret;
+}
+
+/**
+ * ipu_irq_map() - map an IPU interrupt source to an IRQ number
+ * @source:     interrupt source bit position (see ipu_irq_map())
+ * @return:     0 or negative error code
+ */
+int ipu_irq_unmap(unsigned int source)
+{
+        int i, ret = -EINVAL;
+
+        might_sleep();
+
+        mutex_lock(&map_lock);
+        for (i = 0; i < CONFIG_MX3_IPU_IRQS; i++) {
+                if (irq_map[i].source == source) {
+                        unsigned long lock_flags;
+
+                        pr_debug("IPU: unmapped source %u from IRQ %u\n",
+                                 source, irq_map[i].irq);
+
+                        spin_lock_irqsave(&bank_lock, lock_flags);
+                        irq_map[i].source = -EINVAL;
+                        irq_map[i].bank = NULL;
+                        spin_unlock_irqrestore(&bank_lock, lock_flags);
+
+                        ret = 0;
+                        break;
+                }
+        }
+        mutex_unlock(&map_lock);
+
+        return ret;
+}
+
+/* Chained IRQ handler for IPU error interrupt */
+static void ipu_irq_err(unsigned int irq, struct irq_desc *desc)
+{
+        struct ipu *ipu = get_irq_data(irq);
+        u32 status;
+        int i, line;
+
+        for (i = IPU_IRQ_NR_FN_BANKS; i < IPU_IRQ_NR_BANKS; i++) {
+                struct ipu_irq_bank *bank = irq_bank + i;
+
+                spin_lock(&bank_lock);
+                status = ipu_read_reg(ipu, bank->status);
+                /*
+                 * Don't think we have to clear all interrupts here, they will
+                 * be acked by ->handle_irq() (handle_level_irq). However, we
+                 * might want to clear unhandled interrupts after the loop...
+                 */
+                status &= ipu_read_reg(ipu, bank->control);
+                spin_unlock(&bank_lock);
+                while ((line = ffs(status))) {
+                        struct ipu_irq_map *map;
+
+                        line--;
+                        status &= ~(1UL << line);
+
+                        spin_lock(&bank_lock);
+                        map = src2map(32 * i + line);
+                        if (map)
+                                irq = map->irq;
+                        spin_unlock(&bank_lock);
+
+                        if (!map) {
+                                pr_err("IPU: Interrupt on unmapped source %u bank %d\n",
+                                       line, i);
+                                continue;
+                        }
+                        generic_handle_irq(irq);
+                }
+        }
+}
+
+/* Chained IRQ handler for IPU function interrupt */
+static void ipu_irq_fn(unsigned int irq, struct irq_desc *desc)
+{
+        struct ipu *ipu = get_irq_data(irq);
+        u32 status;
+        int i, line;
+
+        for (i = 0; i < IPU_IRQ_NR_FN_BANKS; i++) {
+                struct ipu_irq_bank *bank = irq_bank + i;
+
+                spin_lock(&bank_lock);
+                status = ipu_read_reg(ipu, bank->status);
+                /* Not clearing all interrupts, see above */
+                status &= ipu_read_reg(ipu, bank->control);
+                spin_unlock(&bank_lock);
+                while ((line = ffs(status))) {
+                        struct ipu_irq_map *map;
+
+                        line--;
+                        status &= ~(1UL << line);
+
+                        spin_lock(&bank_lock);
+                        map = src2map(32 * i + line);
+                        if (map)
+                                irq = map->irq;
+                        spin_unlock(&bank_lock);
+
+                        if (!map) {
+                                pr_err("IPU: Interrupt on unmapped source %u bank %d\n",
+                                       line, i);
+                                continue;
+                        }
+                        generic_handle_irq(irq);
+                }
+        }
+}
+
+static struct irq_chip ipu_irq_chip = {
+        .name   = "ipu_irq",
+        .ack    = ipu_irq_ack,
+        .mask   = ipu_irq_mask,
+        .unmask = ipu_irq_unmask,
+};
+
+/* Install the IRQ handler */
+int ipu_irq_attach_irq(struct ipu *ipu, struct platform_device *dev)
+{
+        struct ipu_platform_data *pdata = dev->dev.platform_data;
+        unsigned int irq, irq_base, i;
+
+        irq_base = pdata->irq_base;
+
+        for (i = 0; i < IPU_IRQ_NR_BANKS; i++)
+                irq_bank[i].ipu = ipu;
+
+        for (i = 0; i < CONFIG_MX3_IPU_IRQS; i++) {
+                int ret;
+
+                irq = irq_base + i;
+                ret = set_irq_chip(irq, &ipu_irq_chip);
+                if (ret < 0)
+                        return ret;
+                ret = set_irq_chip_data(irq, irq_map + i);
+                if (ret < 0)
+                        return ret;
+                irq_map[i].ipu = ipu;
+                irq_map[i].irq = irq;
+                irq_map[i].source = -EINVAL;
+                set_irq_handler(irq, handle_level_irq);
+#ifdef CONFIG_ARM
+                set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
+#endif
+        }
+
+        set_irq_data(ipu->irq_fn, ipu);
+        set_irq_chained_handler(ipu->irq_fn, ipu_irq_fn);
+
+        set_irq_data(ipu->irq_err, ipu);
+        set_irq_chained_handler(ipu->irq_err, ipu_irq_err);
+
+        return 0;
+}
+
+void ipu_irq_detach_irq(struct ipu *ipu, struct platform_device *dev)
+{
+        struct ipu_platform_data *pdata = dev->dev.platform_data;
+        unsigned int irq, irq_base;
+
+        irq_base = pdata->irq_base;
+
+        set_irq_chained_handler(ipu->irq_fn, NULL);
+        set_irq_data(ipu->irq_fn, NULL);
+
+        set_irq_chained_handler(ipu->irq_err, NULL);
+        set_irq_data(ipu->irq_err, NULL);
+
+        for (irq = irq_base; irq < irq_base + CONFIG_MX3_IPU_IRQS; irq++) {
+#ifdef CONFIG_ARM
+                set_irq_flags(irq, 0);
+#endif
+                set_irq_chip(irq, NULL);
+                set_irq_chip_data(irq, NULL);
+        }
+}
diff --git a/drivers/gpu/drm/drm_agpsupport.c b/drivers/gpu/drm/drm_agpsupport.c
index 3d33b8252b58..14796594e5d9 100644
--- a/drivers/gpu/drm/drm_agpsupport.c
+++ b/drivers/gpu/drm/drm_agpsupport.c
@@ -33,10 +33,11 @@
 
 #include "drmP.h"
 #include <linux/module.h>
-#include <asm/agp.h>
 
 #if __OS_HAS_AGP
 
+#include <asm/agp.h>
+
 /**
  * Get AGP information.
  *
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 5b2cbb778162..bfce0992fefb 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -194,7 +194,6 @@ char *drm_get_connector_status_name(enum drm_connector_status status)
  * @type: object type
  *
  * LOCKING:
- * Caller must hold DRM mode_config lock.
  *
  * Create a unique identifier based on @ptr in @dev's identifier space.  Used
  * for tracking modes, CRTCs and connectors.
@@ -209,15 +208,15 @@ static int drm_mode_object_get(struct drm_device *dev,
         int new_id = 0;
         int ret;
 
-        WARN(!mutex_is_locked(&dev->mode_config.mutex),
-             "%s called w/o mode_config lock\n", __func__);
 again:
         if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) {
                 DRM_ERROR("Ran out memory getting a mode number\n");
                 return -EINVAL;
         }
 
+        mutex_lock(&dev->mode_config.idr_mutex);
         ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id);
+        mutex_unlock(&dev->mode_config.idr_mutex);
         if (ret == -EAGAIN)
                 goto again;
 
@@ -239,16 +238,20 @@ again:
 static void drm_mode_object_put(struct drm_device *dev,
                                 struct drm_mode_object *object)
 {
+        mutex_lock(&dev->mode_config.idr_mutex);
         idr_remove(&dev->mode_config.crtc_idr, object->id);
+        mutex_unlock(&dev->mode_config.idr_mutex);
 }
 
 void *drm_mode_object_find(struct drm_device *dev, uint32_t id, uint32_t type)
 {
-        struct drm_mode_object *obj;
+        struct drm_mode_object *obj = NULL;
 
+        mutex_lock(&dev->mode_config.idr_mutex);
         obj = idr_find(&dev->mode_config.crtc_idr, id);
         if (!obj || (obj->type != type) || (obj->id != id))
-                return NULL;
+                obj = NULL;
+        mutex_unlock(&dev->mode_config.idr_mutex);
 
         return obj;
 }
@@ -786,6 +789,7 @@ EXPORT_SYMBOL(drm_mode_create_dithering_property);
 void drm_mode_config_init(struct drm_device *dev)
 {
         mutex_init(&dev->mode_config.mutex);
+        mutex_init(&dev->mode_config.idr_mutex);
         INIT_LIST_HEAD(&dev->mode_config.fb_list);
         INIT_LIST_HEAD(&dev->mode_config.fb_kernel_list);
         INIT_LIST_HEAD(&dev->mode_config.crtc_list);
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index 5ff88d952226..14c7a23dc157 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -294,6 +294,7 @@ EXPORT_SYMBOL(drm_init);
  */
 static void drm_cleanup(struct drm_device * dev)
 {
+        struct drm_map_list *r_list, *list_temp;
         DRM_DEBUG("\n");
 
         if (!dev) {
@@ -325,6 +326,9 @@ static void drm_cleanup(struct drm_device * dev)
         drm_ht_remove(&dev->map_hash);
         drm_ctxbitmap_cleanup(dev);
 
+        list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head)
+                drm_rmmap(dev, r_list->map);
+
         if (drm_core_check_feature(dev, DRIVER_MODESET))
                 drm_put_minor(&dev->control);
 
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 0fbb0da342cb..5a4d3244758a 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -660,7 +660,7 @@ struct edid *drm_get_edid(struct drm_connector *connector,
 
         edid = (struct edid *)drm_ddc_read(adapter);
         if (!edid) {
-                dev_warn(&connector->dev->pdev->dev, "%s: no EDID data\n",
+                dev_info(&connector->dev->pdev->dev, "%s: no EDID data\n",
                          drm_get_connector_name(connector));
                 return NULL;
         }
diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c
index 5ca132afa4f2..46bb923b097c 100644
--- a/drivers/gpu/drm/drm_stub.c
+++ b/drivers/gpu/drm/drm_stub.c
@@ -118,12 +118,20 @@ static void drm_master_destroy(struct kref *kref)
         struct drm_master *master = container_of(kref, struct drm_master, refcount);
         struct drm_magic_entry *pt, *next;
         struct drm_device *dev = master->minor->dev;
+        struct drm_map_list *r_list, *list_temp;
 
         list_del(&master->head);
 
         if (dev->driver->master_destroy)
                 dev->driver->master_destroy(dev, master);
 
+        list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head) {
+                if (r_list->master == master) {
+                        drm_rmmap_locked(dev, r_list->map);
+                        r_list = NULL;
+                }
+        }
+
         if (master->unique) {
                 drm_free(master->unique, master->unique_size, DRM_MEM_DRIVER);
                 master->unique = NULL;
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index bbadf1c04142..ee64b7301f67 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -944,13 +944,14 @@ static int i915_load_modeset_init(struct drm_device *dev)
         dev->mode_config.fb_base = drm_get_resource_start(dev, fb_bar) &
                 0xff000000;
 
-        DRM_DEBUG("*** fb base 0x%08lx\n", dev->mode_config.fb_base);
-
-        if (IS_MOBILE(dev) || (IS_I9XX(dev) && !IS_I965G(dev) && !IS_G33(dev)))
+        if (IS_MOBILE(dev) || IS_I9XX(dev))
                 dev_priv->cursor_needs_physical = true;
         else
                 dev_priv->cursor_needs_physical = false;
 
+        if (IS_I965G(dev) || IS_G33(dev))
+                dev_priv->cursor_needs_physical = false;
+
         ret = i915_probe_agp(dev, &agp_size, &prealloc_size);
         if (ret)
                 goto kfree_devname;
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 96316fd47233..debad5c04cc0 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3364,7 +3364,7 @@ void i915_gem_free_all_phys_object(struct drm_device *dev)
 {
         int i;
 
-        for (i = 0; i < I915_MAX_PHYS_OBJECT; i++)
+        for (i = I915_GEM_PHYS_CURSOR_0; i <= I915_MAX_PHYS_OBJECT; i++)
                 i915_gem_free_phys_object(dev, i);
 }
 
@@ -3427,7 +3427,7 @@ i915_gem_attach_phys_object(struct drm_device *dev,
                 ret = i915_gem_init_phys_object(dev, id,
                                                 obj->size);
                 if (ret) {
-                        DRM_ERROR("failed to init phys object %d size: %d\n", id, obj->size);
+                        DRM_ERROR("failed to init phys object %d size: %zu\n", id, obj->size);
                         goto out;
                 }
         }
diff --git a/drivers/gpu/drm/i915/intel_i2c.c b/drivers/gpu/drm/i915/intel_i2c.c
index a5a2f5339e9e..5ee9d4c25753 100644
--- a/drivers/gpu/drm/i915/intel_i2c.c
+++ b/drivers/gpu/drm/i915/intel_i2c.c
@@ -137,10 +137,6 @@ struct intel_i2c_chan *intel_i2c_create(struct drm_device *dev, const u32 reg,
         chan->reg = reg;
         snprintf(chan->adapter.name, I2C_NAME_SIZE, "intel drm %s", name);
         chan->adapter.owner = THIS_MODULE;
-#ifndef I2C_HW_B_INTELFB
-#define I2C_HW_B_INTELFB I2C_HW_B_I810
-#endif
-        chan->adapter.id = I2C_HW_B_INTELFB;
         chan->adapter.algo_data = &chan->algo;
         chan->adapter.dev.parent = &dev->pdev->dev;
         chan->algo.setsda = set_data;
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index 2fafdcc108fe..6b1148fc2cbe 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -340,6 +340,18 @@ static void intel_lvds_destroy(struct drm_connector *connector)
         kfree(connector);
 }
 
+static int intel_lvds_set_property(struct drm_connector *connector,
+                                   struct drm_property *property,
+                                   uint64_t value)
+{
+        struct drm_device *dev = connector->dev;
+
+        if (property == dev->mode_config.dpms_property && connector->encoder)
+                intel_lvds_dpms(connector->encoder, (uint32_t)(value & 0xf));
+
+        return 0;
+}
+
 static const struct drm_encoder_helper_funcs intel_lvds_helper_funcs = {
         .dpms = intel_lvds_dpms,
         .mode_fixup = intel_lvds_mode_fixup,
@@ -359,6 +371,7 @@ static const struct drm_connector_funcs intel_lvds_connector_funcs = {
         .restore = intel_lvds_restore,
         .detect = intel_lvds_detect,
         .fill_modes = drm_helper_probe_single_connector_modes,
+        .set_property = intel_lvds_set_property,
         .destroy = intel_lvds_destroy,
 };
 
diff --git a/drivers/i2c/busses/i2c-acorn.c b/drivers/i2c/busses/i2c-acorn.c
index 75089febbc13..9fee3ca17344 100644
--- a/drivers/i2c/busses/i2c-acorn.c
+++ b/drivers/i2c/busses/i2c-acorn.c
@@ -83,7 +83,6 @@ static struct i2c_algo_bit_data ioc_data = {
 };
 
 static struct i2c_adapter ioc_ops = {
-        .id                     = I2C_HW_B_IOC,
         .algo_data              = &ioc_data,
 };
 
diff --git a/drivers/i2c/busses/i2c-ali1535.c b/drivers/i2c/busses/i2c-ali1535.c
index 9cead9b9458e..981e080b32ae 100644
--- a/drivers/i2c/busses/i2c-ali1535.c
+++ b/drivers/i2c/busses/i2c-ali1535.c
@@ -476,7 +476,6 @@ static const struct i2c_algorithm smbus_algorithm = {
 
 static struct i2c_adapter ali1535_adapter = {
         .owner          = THIS_MODULE,
-        .id             = I2C_HW_SMBUS_ALI1535,
         .class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
         .algo           = &smbus_algorithm,
 };
diff --git a/drivers/i2c/busses/i2c-ali1563.c b/drivers/i2c/busses/i2c-ali1563.c
index dd9e796fad69..f70f46582c6c 100644
--- a/drivers/i2c/busses/i2c-ali1563.c
+++ b/drivers/i2c/busses/i2c-ali1563.c
@@ -386,7 +386,6 @@ static const struct i2c_algorithm ali1563_algorithm = {
 
 static struct i2c_adapter ali1563_adapter = {
         .owner  = THIS_MODULE,
-        .id     = I2C_HW_SMBUS_ALI1563,
         .class  = I2C_CLASS_HWMON | I2C_CLASS_SPD,
         .algo   = &ali1563_algorithm,
 };
diff --git a/drivers/i2c/busses/i2c-ali15x3.c b/drivers/i2c/busses/i2c-ali15x3.c
index 234fdde7d40e..39066dee46e3 100644
--- a/drivers/i2c/busses/i2c-ali15x3.c
+++ b/drivers/i2c/busses/i2c-ali15x3.c
@@ -473,7 +473,6 @@ static const struct i2c_algorithm smbus_algorithm = {
 
 static struct i2c_adapter ali15x3_adapter = {
         .owner          = THIS_MODULE,
-        .id             = I2C_HW_SMBUS_ALI15X3,
         .class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
         .algo           = &smbus_algorithm,
 };
diff --git a/drivers/i2c/busses/i2c-amd756.c b/drivers/i2c/busses/i2c-amd756.c
index 36bee5b9c952..220f4a1eee1d 100644
--- a/drivers/i2c/busses/i2c-amd756.c
+++ b/drivers/i2c/busses/i2c-amd756.c
@@ -298,7 +298,6 @@ static const struct i2c_algorithm smbus_algorithm = {
 
 struct i2c_adapter amd756_smbus = {
         .owner          = THIS_MODULE,
-        .id             = I2C_HW_SMBUS_AMD756,
         .class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
         .algo           = &smbus_algorithm,
 };
diff --git a/drivers/i2c/busses/i2c-amd8111.c b/drivers/i2c/busses/i2c-amd8111.c
index 3972208876b3..edab51973bf5 100644
--- a/drivers/i2c/busses/i2c-amd8111.c
+++ b/drivers/i2c/busses/i2c-amd8111.c
@@ -387,7 +387,6 @@ static int __devinit amd8111_probe(struct pci_dev *dev,
         smbus->adapter.owner = THIS_MODULE;
         snprintf(smbus->adapter.name, sizeof(smbus->adapter.name),
                 "SMBus2 AMD8111 adapter at %04x", smbus->base);
-        smbus->adapter.id = I2C_HW_SMBUS_AMD8111;
         smbus->adapter.class = I2C_CLASS_HWMON | I2C_CLASS_SPD;
         smbus->adapter.algo = &smbus_algorithm;
         smbus->adapter.algo_data = smbus;
diff --git a/drivers/i2c/busses/i2c-au1550.c b/drivers/i2c/busses/i2c-au1550.c
index 66a04c2c660f..f78ce523e3db 100644
--- a/drivers/i2c/busses/i2c-au1550.c
+++ b/drivers/i2c/busses/i2c-au1550.c
@@ -400,7 +400,6 @@ i2c_au1550_probe(struct platform_device *pdev)
         priv->xfer_timeout = 200;
         priv->ack_timeout = 200;
 
-        priv->adap.id = I2C_HW_AU1550_PSC;
         priv->adap.nr = pdev->id;
         priv->adap.algo = &au1550_algo;
         priv->adap.algo_data = priv;
diff --git a/drivers/i2c/busses/i2c-bfin-twi.c b/drivers/i2c/busses/i2c-bfin-twi.c
index 3fd2c417c1e0..fc548b3d002e 100644
--- a/drivers/i2c/busses/i2c-bfin-twi.c
+++ b/drivers/i2c/busses/i2c-bfin-twi.c
@@ -651,7 +651,6 @@ static int i2c_bfin_twi_probe(struct platform_device *pdev)
         iface->timeout_timer.data = (unsigned long)iface;
 
         p_adap = &iface->adap;
-        p_adap->id = I2C_HW_BLACKFIN;
         p_adap->nr = pdev->id;
         strlcpy(p_adap->name, pdev->name, sizeof(p_adap->name));
         p_adap->algo = &bfin_twi_algorithm;
diff --git a/drivers/i2c/busses/i2c-elektor.c b/drivers/i2c/busses/i2c-elektor.c
index 0ed3ccb81b63..448b4bf35eb7 100644
--- a/drivers/i2c/busses/i2c-elektor.c
+++ b/drivers/i2c/busses/i2c-elektor.c
@@ -202,7 +202,6 @@ static struct i2c_algo_pcf_data pcf_isa_data = {
 static struct i2c_adapter pcf_isa_ops = {
         .owner          = THIS_MODULE,
         .class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
-        .id             = I2C_HW_P_ELEK,
         .algo_data      = &pcf_isa_data,
         .name           = "i2c-elektor",
 };
diff --git a/drivers/i2c/busses/i2c-hydra.c b/drivers/i2c/busses/i2c-hydra.c
index 648aa7baff83..bec9b845dd16 100644
--- a/drivers/i2c/busses/i2c-hydra.c
+++ b/drivers/i2c/busses/i2c-hydra.c
@@ -102,7 +102,6 @@ static struct i2c_algo_bit_data hydra_bit_data = {
 static struct i2c_adapter hydra_adap = {
         .owner          = THIS_MODULE,
         .name           = "Hydra i2c",
-        .id             = I2C_HW_B_HYDRA,
         .algo_data      = &hydra_bit_data,
 };
 
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index 526625eaa84b..230238df56c4 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -556,7 +556,6 @@ static const struct i2c_algorithm smbus_algorithm = {
 
 static struct i2c_adapter i801_adapter = {
         .owner          = THIS_MODULE,
-        .id             = I2C_HW_SMBUS_I801,
         .class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
         .algo           = &smbus_algorithm,
 };
diff --git a/drivers/i2c/busses/i2c-ibm_iic.c b/drivers/i2c/busses/i2c-ibm_iic.c
index 651f2f1ae5b7..88f0db73b364 100644
--- a/drivers/i2c/busses/i2c-ibm_iic.c
+++ b/drivers/i2c/busses/i2c-ibm_iic.c
@@ -746,7 +746,6 @@ static int __devinit iic_probe(struct of_device *ofdev,
         adap->dev.parent = &ofdev->dev;
         strlcpy(adap->name, "IBM IIC", sizeof(adap->name));
         i2c_set_adapdata(adap, dev);
-        adap->id = I2C_HW_OCP;
         adap->class = I2C_CLASS_HWMON | I2C_CLASS_SPD;
         adap->algo = &iic_algo;
         adap->timeout = 1;
diff --git a/drivers/i2c/busses/i2c-iop3xx.c b/drivers/i2c/busses/i2c-iop3xx.c
index fc2714ac0c0f..3190690c26ce 100644
--- a/drivers/i2c/busses/i2c-iop3xx.c
+++ b/drivers/i2c/busses/i2c-iop3xx.c
@@ -480,7 +480,6 @@ iop3xx_i2c_probe(struct platform_device *pdev)
         }
 
         memcpy(new_adapter->name, pdev->name, strlen(pdev->name));
-        new_adapter->id = I2C_HW_IOP3XX;
         new_adapter->owner = THIS_MODULE;
         new_adapter->class = I2C_CLASS_HWMON | I2C_CLASS_SPD;
         new_adapter->dev.parent = &pdev->dev;
diff --git a/drivers/i2c/busses/i2c-ixp2000.c b/drivers/i2c/busses/i2c-ixp2000.c
index 05d72e981353..8e8467970481 100644
--- a/drivers/i2c/busses/i2c-ixp2000.c
+++ b/drivers/i2c/busses/i2c-ixp2000.c
@@ -116,7 +116,6 @@ static int ixp2000_i2c_probe(struct platform_device *plat_dev)
         drv_data->algo_data.udelay = 6;
         drv_data->algo_data.timeout = 100;
 
-        drv_data->adapter.id = I2C_HW_B_IXP2000,
         strlcpy(drv_data->adapter.name, plat_dev->dev.driver->name,
                 sizeof(drv_data->adapter.name));
         drv_data->adapter.algo_data = &drv_data->algo_data,
diff --git a/drivers/i2c/busses/i2c-mpc.c b/drivers/i2c/busses/i2c-mpc.c
index a9a45fcc8544..aedbbe6618db 100644
--- a/drivers/i2c/busses/i2c-mpc.c
+++ b/drivers/i2c/busses/i2c-mpc.c
@@ -310,7 +310,6 @@ static const struct i2c_algorithm mpc_algo = {
 static struct i2c_adapter mpc_ops = {
         .owner = THIS_MODULE,
         .name = "MPC adapter",
-        .id = I2C_HW_MPC107,
         .algo = &mpc_algo,
         .timeout = 1,
 };
diff --git a/drivers/i2c/busses/i2c-mv64xxx.c b/drivers/i2c/busses/i2c-mv64xxx.c
index 9e8118d2fe64..eeda276f8f16 100644
--- a/drivers/i2c/busses/i2c-mv64xxx.c
+++ b/drivers/i2c/busses/i2c-mv64xxx.c
@@ -527,7 +527,6 @@ mv64xxx_i2c_probe(struct platform_device *pd)
                 goto exit_unmap_regs;
         }
         drv_data->adapter.dev.parent = &pd->dev;
-        drv_data->adapter.id = I2C_HW_MV64XXX;
         drv_data->adapter.algo = &mv64xxx_i2c_algo;
         drv_data->adapter.owner = THIS_MODULE;
         drv_data->adapter.class = I2C_CLASS_HWMON | I2C_CLASS_SPD;
diff --git a/drivers/i2c/busses/i2c-nforce2.c b/drivers/i2c/busses/i2c-nforce2.c
index 3b19bc41a60b..05af6cd7f270 100644
--- a/drivers/i2c/busses/i2c-nforce2.c
+++ b/drivers/i2c/busses/i2c-nforce2.c
@@ -355,7 +355,6 @@ static int __devinit nforce2_probe_smb (struct pci_dev *dev, int bar,
                 return -EBUSY;
         }
         smbus->adapter.owner = THIS_MODULE;
-        smbus->adapter.id = I2C_HW_SMBUS_NFORCE2;
         smbus->adapter.class = I2C_CLASS_HWMON | I2C_CLASS_SPD;
         smbus->adapter.algo = &smbus_algorithm;
         smbus->adapter.algo_data = smbus;
diff --git a/drivers/i2c/busses/i2c-parport-light.c b/drivers/i2c/busses/i2c-parport-light.c
index b2b8380f6602..322c5691e38e 100644
--- a/drivers/i2c/busses/i2c-parport-light.c
+++ b/drivers/i2c/busses/i2c-parport-light.c
@@ -115,7 +115,6 @@ static struct i2c_algo_bit_data parport_algo_data = {
 static struct i2c_adapter parport_adapter = {
         .owner          = THIS_MODULE,
         .class          = I2C_CLASS_HWMON,
-        .id             = I2C_HW_B_LP,
         .algo_data      = &parport_algo_data,
         .name           = "Parallel port adapter (light)",
 };
diff --git a/drivers/i2c/busses/i2c-parport.c b/drivers/i2c/busses/i2c-parport.c
index a257cd5cd134..0d8998610c74 100644
--- a/drivers/i2c/busses/i2c-parport.c
+++ b/drivers/i2c/busses/i2c-parport.c
@@ -164,7 +164,6 @@ static void i2c_parport_attach (struct parport *port)
         /* Fill the rest of the structure */
         adapter->adapter.owner = THIS_MODULE;
         adapter->adapter.class = I2C_CLASS_HWMON;
-        adapter->adapter.id = I2C_HW_B_LP;
         strlcpy(adapter->adapter.name, "Parallel port adapter",
                 sizeof(adapter->adapter.name));
         adapter->algo_data = parport_algo_data;
diff --git a/drivers/i2c/busses/i2c-pca-isa.c b/drivers/i2c/busses/i2c-pca-isa.c
index 9eb76268ec78..4aa8138cb0a9 100644
--- a/drivers/i2c/busses/i2c-pca-isa.c
+++ b/drivers/i2c/busses/i2c-pca-isa.c
@@ -101,7 +101,6 @@ static struct i2c_algo_pca_data pca_isa_data = {
 
 static struct i2c_adapter pca_isa_ops = {
         .owner          = THIS_MODULE,
-        .id             = I2C_HW_A_ISA,
         .algo_data      = &pca_isa_data,
         .name           = "PCA9564 ISA Adapter",
         .timeout        = 100,
diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c
index eaa9b387543e..761f9dd53620 100644
--- a/drivers/i2c/busses/i2c-piix4.c
+++ b/drivers/i2c/busses/i2c-piix4.c
@@ -403,7 +403,6 @@ static const struct i2c_algorithm smbus_algorithm = {
 
 static struct i2c_adapter piix4_adapter = {
         .owner          = THIS_MODULE,
-        .id             = I2C_HW_SMBUS_PIIX4,
         .class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
         .algo           = &smbus_algorithm,
 };
diff --git a/drivers/i2c/busses/i2c-sibyte.c b/drivers/i2c/busses/i2c-sibyte.c
index 4ddefbf238e9..98b1ec489159 100644
--- a/drivers/i2c/busses/i2c-sibyte.c
+++ b/drivers/i2c/busses/i2c-sibyte.c
@@ -155,7 +155,6 @@ static struct i2c_algo_sibyte_data sibyte_board_data[2] = {
 static struct i2c_adapter sibyte_board_adapter[2] = {
         {
                 .owner          = THIS_MODULE,
-                .id             = I2C_HW_SIBYTE,
                 .class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
                 .algo           = NULL,
                 .algo_data      = &sibyte_board_data[0],
@@ -164,7 +163,6 @@ static struct i2c_adapter sibyte_board_adapter[2] = {
         },
         {
                 .owner          = THIS_MODULE,
-                .id             = I2C_HW_SIBYTE,
                 .class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
                 .algo           = NULL,
                 .algo_data      = &sibyte_board_data[1],
diff --git a/drivers/i2c/busses/i2c-sis5595.c b/drivers/i2c/busses/i2c-sis5595.c
index 8ce2daff985c..f320ab27da46 100644
--- a/drivers/i2c/busses/i2c-sis5595.c
+++ b/drivers/i2c/busses/i2c-sis5595.c
@@ -365,7 +365,6 @@ static const struct i2c_algorithm smbus_algorithm = {
 
 static struct i2c_adapter sis5595_adapter = {
         .owner          = THIS_MODULE,
-        .id             = I2C_HW_SMBUS_SIS5595,
         .class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
         .algo           = &smbus_algorithm,
 };
diff --git a/drivers/i2c/busses/i2c-sis630.c b/drivers/i2c/busses/i2c-sis630.c
index 9c9c016ff2b5..50c3610e6028 100644
--- a/drivers/i2c/busses/i2c-sis630.c
+++ b/drivers/i2c/busses/i2c-sis630.c
@@ -464,7 +464,6 @@ static const struct i2c_algorithm smbus_algorithm = {
 
 static struct i2c_adapter sis630_adapter = {
         .owner          = THIS_MODULE,
-        .id             = I2C_HW_SMBUS_SIS630,
         .class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
         .algo           = &smbus_algorithm,
 };
diff --git a/drivers/i2c/busses/i2c-sis96x.c b/drivers/i2c/busses/i2c-sis96x.c
index f1bba6396641..7e1594b40579 100644
--- a/drivers/i2c/busses/i2c-sis96x.c
+++ b/drivers/i2c/busses/i2c-sis96x.c
@@ -241,7 +241,6 @@ static const struct i2c_algorithm smbus_algorithm = {
 
 static struct i2c_adapter sis96x_adapter = {
         .owner          = THIS_MODULE,
-        .id             = I2C_HW_SMBUS_SIS96X,
         .class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
         .algo           = &smbus_algorithm,
 };
diff --git a/drivers/i2c/busses/i2c-via.c b/drivers/i2c/busses/i2c-via.c
index 29cef0433f34..8b24f192103a 100644
--- a/drivers/i2c/busses/i2c-via.c
+++ b/drivers/i2c/busses/i2c-via.c
@@ -83,7 +83,6 @@ static struct i2c_algo_bit_data bit_data = {
 
 static struct i2c_adapter vt586b_adapter = {
         .owner          = THIS_MODULE,
-        .id             = I2C_HW_B_VIA,
         .class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
         .name           = "VIA i2c",
         .algo_data      = &bit_data,
diff --git a/drivers/i2c/busses/i2c-viapro.c b/drivers/i2c/busses/i2c-viapro.c
index 9f194d9efd91..02e6f724b05f 100644
--- a/drivers/i2c/busses/i2c-viapro.c
+++ b/drivers/i2c/busses/i2c-viapro.c
@@ -321,7 +321,6 @@ static const struct i2c_algorithm smbus_algorithm = {
 
 static struct i2c_adapter vt596_adapter = {
         .owner          = THIS_MODULE,
-        .id             = I2C_HW_SMBUS_VIA2,
         .class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
         .algo           = &smbus_algorithm,
 };
diff --git a/drivers/i2c/busses/i2c-voodoo3.c b/drivers/i2c/busses/i2c-voodoo3.c
index 1d4ae26ba73d..1a474acc0ddd 100644
--- a/drivers/i2c/busses/i2c-voodoo3.c
+++ b/drivers/i2c/busses/i2c-voodoo3.c
@@ -163,7 +163,6 @@ static struct i2c_algo_bit_data voo_i2c_bit_data = {
 
 static struct i2c_adapter voodoo3_i2c_adapter = {
         .owner          = THIS_MODULE,
-        .id             = I2C_HW_B_VOO,
         .class          = I2C_CLASS_TV_ANALOG, 
         .name           = "I2C Voodoo3/Banshee adapter",
         .algo_data      = &voo_i2c_bit_data,
@@ -180,7 +179,6 @@ static struct i2c_algo_bit_data voo_ddc_bit_data = {
 
 static struct i2c_adapter voodoo3_ddc_adapter = {
         .owner          = THIS_MODULE,
-        .id             = I2C_HW_B_VOO,
         .class          = I2C_CLASS_DDC, 
         .name           = "DDC Voodoo3/Banshee adapter",
         .algo_data      = &voo_ddc_bit_data,
diff --git a/drivers/i2c/busses/scx200_acb.c b/drivers/i2c/busses/scx200_acb.c
index ed794b145a11..648ecc6f60e6 100644
--- a/drivers/i2c/busses/scx200_acb.c
+++ b/drivers/i2c/busses/scx200_acb.c
@@ -440,7 +440,6 @@ static __init struct scx200_acb_iface *scx200_create_iface(const char *text,
         i2c_set_adapdata(adapter, iface);
         snprintf(adapter->name, sizeof(adapter->name), "%s ACB%d", text, index);
         adapter->owner = THIS_MODULE;
-        adapter->id = I2C_HW_SMBUS_SCX200;
         adapter->algo = &scx200_acb_algorithm;
         adapter->class = I2C_CLASS_HWMON | I2C_CLASS_SPD;
         adapter->dev.parent = dev;
diff --git a/drivers/i2c/busses/scx200_i2c.c b/drivers/i2c/busses/scx200_i2c.c
index e4c98539c517..162b74a04886 100644
--- a/drivers/i2c/busses/scx200_i2c.c
+++ b/drivers/i2c/busses/scx200_i2c.c
@@ -82,7 +82,6 @@ static struct i2c_algo_bit_data scx200_i2c_data = {
 static struct i2c_adapter scx200_i2c_ops = {
         .owner             = THIS_MODULE,
         .class             = I2C_CLASS_HWMON | I2C_CLASS_SPD,
-        .id                = I2C_HW_B_SCX200,
         .algo_data         = &scx200_i2c_data,
         .name   = "NatSemi SCx200 I2C",
 };
diff --git a/drivers/i2c/chips/Kconfig b/drivers/i2c/chips/Kconfig
index b9bef04b7be4..c80312c1f382 100644
--- a/drivers/i2c/chips/Kconfig
+++ b/drivers/i2c/chips/Kconfig
@@ -16,43 +16,6 @@ config DS1682
           This driver can also be built as a module.  If so, the module
           will be called ds1682.
 
-config AT24
-        tristate "EEPROMs from most vendors"
-        depends on SYSFS && EXPERIMENTAL
-        help
-          Enable this driver to get read/write support to most I2C EEPROMs,
-          after you configure the driver to know about each EEPROM on
-          your target board.  Use these generic chip names, instead of
-          vendor-specific ones like at24c64 or 24lc02:
-
-             24c00, 24c01, 24c02, spd (readonly 24c02), 24c04, 24c08,
-             24c16, 24c32, 24c64, 24c128, 24c256, 24c512, 24c1024
-
-          Unless you like data loss puzzles, always be sure that any chip
-          you configure as a 24c32 (32 kbit) or larger is NOT really a
-          24c16 (16 kbit) or smaller, and vice versa. Marking the chip
-          as read-only won't help recover from this. Also, if your chip
-          has any software write-protect mechanism you may want to review the
-          code to make sure this driver won't turn it on by accident.
-
-          If you use this with an SMBus adapter instead of an I2C adapter,
-          full functionality is not available.  Only smaller devices are
-          supported (24c16 and below, max 4 kByte).
-
-          This driver can also be built as a module.  If so, the module
-          will be called at24.
-
-config SENSORS_EEPROM
-        tristate "EEPROM reader"
-        depends on EXPERIMENTAL
-        help
-          If you say yes here you get read-only access to the EEPROM data
-          available on modern memory DIMMs and Sony Vaio laptops.  Such
-          EEPROMs could theoretically be available on other devices as well.
-
-          This driver can also be built as a module.  If so, the module
-          will be called eeprom.
-
 config SENSORS_PCF8574
         tristate "Philips PCF8574 and PCF8574A (DEPRECATED)"
         depends on EXPERIMENTAL && GPIO_PCF857X = "n"
diff --git a/drivers/i2c/chips/Makefile b/drivers/i2c/chips/Makefile
index 00fcb5193ac2..d142f238a2de 100644
--- a/drivers/i2c/chips/Makefile
+++ b/drivers/i2c/chips/Makefile
@@ -11,8 +11,6 @@
 #
 
 obj-$(CONFIG_DS1682)            += ds1682.o
-obj-$(CONFIG_AT24)              += at24.o
-obj-$(CONFIG_SENSORS_EEPROM)    += eeprom.o
 obj-$(CONFIG_SENSORS_MAX6875)   += max6875.o
 obj-$(CONFIG_SENSORS_PCA9539)   += pca9539.o
 obj-$(CONFIG_SENSORS_PCF8574)   += pcf8574.o
diff --git a/drivers/ide/falconide.c b/drivers/ide/falconide.c
index a5ba820d69bb..a638e952d67a 100644
--- a/drivers/ide/falconide.c
+++ b/drivers/ide/falconide.c
@@ -82,7 +82,7 @@ static const struct ide_tp_ops falconide_tp_ops = {
 
 static const struct ide_port_info falconide_port_info = {
         .tp_ops                 = &falconide_tp_ops,
-        .host_flags             = IDE_HFLAG_NO_DMA,
+        .host_flags             = IDE_HFLAG_NO_DMA | IDE_HFLAG_SERIALIZE,
 };
 
 static void __init falconide_setup_ports(hw_regs_t *hw)
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 312127ea443a..0db1ed9f5fc2 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -649,7 +649,8 @@ static int ide_register_port(ide_hwif_t *hwif)
         /* register with global device tree */
         dev_set_name(&hwif->gendev, hwif->name);
         hwif->gendev.driver_data = hwif;
-        hwif->gendev.parent = hwif->dev;
+        if (hwif->gendev.parent == NULL)
+                hwif->gendev.parent = hwif->dev;
         hwif->gendev.release = hwif_release_dev;
 
         ret = device_register(&hwif->gendev);
diff --git a/drivers/ide/palm_bk3710.c b/drivers/ide/palm_bk3710.c
index a7ac490c9ae3..f38aac78044c 100644
--- a/drivers/ide/palm_bk3710.c
+++ b/drivers/ide/palm_bk3710.c
@@ -346,7 +346,8 @@ static int __init palm_bk3710_probe(struct platform_device *pdev)
 {
         struct clk *clk;
         struct resource *mem, *irq;
-        unsigned long base, rate;
+        void __iomem *base;
+        unsigned long rate;
         int i, rc;
         hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL };
 
@@ -382,11 +383,13 @@ static int __init palm_bk3710_probe(struct platform_device *pdev)
         base = IO_ADDRESS(mem->start);
 
         /* Configure the Palm Chip controller */
-        palm_bk3710_chipinit((void __iomem *)base);
+        palm_bk3710_chipinit(base);
 
         for (i = 0; i < IDE_NR_PORTS - 2; i++)
-                hw.io_ports_array[i] = base + IDE_PALM_ATA_PRI_REG_OFFSET + i;
-        hw.io_ports.ctl_addr = base + IDE_PALM_ATA_PRI_CTL_OFFSET;
+                hw.io_ports_array[i] = (unsigned long)
+                                (base + IDE_PALM_ATA_PRI_REG_OFFSET + i);
+        hw.io_ports.ctl_addr = (unsigned long)
+                        (base + IDE_PALM_ATA_PRI_CTL_OFFSET);
         hw.irq = irq->start;
         hw.dev = &pdev->dev;
         hw.chipset = ide_palm3710;
diff --git a/drivers/ieee1394/pcilynx.c b/drivers/ieee1394/pcilynx.c
index dc15cadb06ef..38f712036201 100644
--- a/drivers/ieee1394/pcilynx.c
+++ b/drivers/ieee1394/pcilynx.c
@@ -1419,7 +1419,6 @@ static int __devinit add_card(struct pci_dev *dev,
                 i2c_ad = kzalloc(sizeof(*i2c_ad), GFP_KERNEL);
                 if (!i2c_ad) FAIL("failed to allocate I2C adapter memory");
 
-                i2c_ad->id = I2C_HW_B_PCILYNX;
                 strlcpy(i2c_ad->name, "PCILynx I2C", sizeof(i2c_ad->name));
                 i2c_adapter_data = bit_data;
                 i2c_ad->algo_data = &i2c_adapter_data;
diff --git a/drivers/isdn/i4l/isdn_ppp.c b/drivers/isdn/i4l/isdn_ppp.c
index a3551dd0324d..aa30b5cb3513 100644
--- a/drivers/isdn/i4l/isdn_ppp.c
+++ b/drivers/isdn/i4l/isdn_ppp.c
@@ -431,6 +431,7 @@ set_arg(void __user *b, void *val,int len)
         return 0;
 }
 
+#ifdef CONFIG_IPPP_FILTER
 static int get_filter(void __user *arg, struct sock_filter **p)
 {
         struct sock_fprog uprog;
@@ -465,6 +466,7 @@ static int get_filter(void __user *arg, struct sock_filter **p)
         *p = code;
         return uprog.len;
 }
+#endif /* CONFIG_IPPP_FILTER */
 
 /*
  * ippp device ioctl
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 419c378bd24b..56073199ceba 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -87,14 +87,6 @@ config PHANTOM
           If you choose to build module, its name will be phantom. If unsure,
           say N here.
 
-config EEPROM_93CX6
-        tristate "EEPROM 93CX6 support"
-        ---help---
-          This is a driver for the EEPROM chipsets 93c46 and 93c66.
-          The driver supports both read as well as write commands.
-
-          If unsure, say N.
-
 config SGI_IOC4
         tristate "SGI IOC4 Base IO support"
         depends on PCI
@@ -231,5 +223,6 @@ config DELL_LAPTOP
         laptops.
 
 source "drivers/misc/c2port/Kconfig"
+source "drivers/misc/eeprom/Kconfig"
 
 endif # MISC_DEVICES
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index d5749a7bc777..bc1199830554 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -13,10 +13,10 @@ obj-$(CONFIG_TIFM_CORE)       	+= tifm_core.o
 obj-$(CONFIG_TIFM_7XX1)         += tifm_7xx1.o
 obj-$(CONFIG_PHANTOM)           += phantom.o
 obj-$(CONFIG_SGI_IOC4)          += ioc4.o
-obj-$(CONFIG_EEPROM_93CX6)      += eeprom_93cx6.o
 obj-$(CONFIG_ENCLOSURE_SERVICES) += enclosure.o
 obj-$(CONFIG_KGDB_TESTS)        += kgdbts.o
 obj-$(CONFIG_SGI_XP)            += sgi-xp/
 obj-$(CONFIG_SGI_GRU)           += sgi-gru/
 obj-$(CONFIG_HP_ILO)            += hpilo.o
 obj-$(CONFIG_C2PORT)            += c2port/
+obj-y                           += eeprom/
diff --git a/drivers/misc/eeprom/Kconfig b/drivers/misc/eeprom/Kconfig
new file mode 100644
index 000000000000..c76df8cda5ef
--- /dev/null
+++ b/drivers/misc/eeprom/Kconfig
@@ -0,0 +1,59 @@
+menu "EEPROM support"
+
+config EEPROM_AT24
+        tristate "I2C EEPROMs from most vendors"
+        depends on I2C && SYSFS && EXPERIMENTAL
+        help
+          Enable this driver to get read/write support to most I2C EEPROMs,
+          after you configure the driver to know about each EEPROM on
+          your target board.  Use these generic chip names, instead of
+          vendor-specific ones like at24c64 or 24lc02:
+
+             24c00, 24c01, 24c02, spd (readonly 24c02), 24c04, 24c08,
+             24c16, 24c32, 24c64, 24c128, 24c256, 24c512, 24c1024
+
+          Unless you like data loss puzzles, always be sure that any chip
+          you configure as a 24c32 (32 kbit) or larger is NOT really a
+          24c16 (16 kbit) or smaller, and vice versa. Marking the chip
+          as read-only won't help recover from this. Also, if your chip
+          has any software write-protect mechanism you may want to review the
+          code to make sure this driver won't turn it on by accident.
+
+          If you use this with an SMBus adapter instead of an I2C adapter,
+          full functionality is not available.  Only smaller devices are
+          supported (24c16 and below, max 4 kByte).
+
+          This driver can also be built as a module.  If so, the module
+          will be called at24.
+
+config EEPROM_AT25
+        tristate "SPI EEPROMs from most vendors"
+        depends on SPI && SYSFS
+        help
+          Enable this driver to get read/write support to most SPI EEPROMs,
+          after you configure the board init code to know about each eeprom
+          on your target board.
+
+          This driver can also be built as a module.  If so, the module
+          will be called at25.
+
+config EEPROM_LEGACY
+        tristate "Old I2C EEPROM reader"
+        depends on I2C && SYSFS
+        help
+          If you say yes here you get read-only access to the EEPROM data
+          available on modern memory DIMMs and Sony Vaio laptops via I2C. Such
+          EEPROMs could theoretically be available on other devices as well.
+
+          This driver can also be built as a module.  If so, the module
+          will be called eeprom.
+
+config EEPROM_93CX6
+        tristate "EEPROM 93CX6 support"
+        help
+          This is a driver for the EEPROM chipsets 93c46 and 93c66.
+          The driver supports both read as well as write commands.
+
+          If unsure, say N.
+
+endmenu
diff --git a/drivers/misc/eeprom/Makefile b/drivers/misc/eeprom/Makefile
new file mode 100644
index 000000000000..539dd8f88128
--- /dev/null
+++ b/drivers/misc/eeprom/Makefile
@@ -0,0 +1,4 @@
+obj-$(CONFIG_EEPROM_AT24)       += at24.o
+obj-$(CONFIG_EEPROM_AT25)       += at25.o
+obj-$(CONFIG_EEPROM_LEGACY)     += eeprom.o
+obj-$(CONFIG_EEPROM_93CX6)      += eeprom_93cx6.o
diff --git a/drivers/i2c/chips/at24.c b/drivers/misc/eeprom/at24.c
index d4775528abc6..d4775528abc6 100644
--- a/drivers/i2c/chips/at24.c
+++ b/drivers/misc/eeprom/at24.c
diff --git a/drivers/spi/at25.c b/drivers/misc/eeprom/at25.c
index 290dbe99647a..290dbe99647a 100644
--- a/drivers/spi/at25.c
+++ b/drivers/misc/eeprom/at25.c
diff --git a/drivers/i2c/chips/eeprom.c b/drivers/misc/eeprom/eeprom.c
index 2c27193aeaa0..2c27193aeaa0 100644
--- a/drivers/i2c/chips/eeprom.c
+++ b/drivers/misc/eeprom/eeprom.c
diff --git a/drivers/misc/eeprom_93cx6.c b/drivers/misc/eeprom/eeprom_93cx6.c
index 15b1780025c8..15b1780025c8 100644
--- a/drivers/misc/eeprom_93cx6.c
+++ b/drivers/misc/eeprom/eeprom_93cx6.c
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index dfa585f7feaf..0efa390978bd 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -76,6 +76,16 @@ config MMC_OMAP
 
           If unsure, say N.
 
+config MMC_OMAP_HS
+        tristate "TI OMAP High Speed Multimedia Card Interface support"
+        depends on ARCH_OMAP2430 || ARCH_OMAP3
+        help
+          This selects the TI OMAP High Speed Multimedia card Interface.
+          If you have an OMAP2430 or OMAP3 board with a Multimedia Card slot,
+          say Y or M here.
+
+          If unsure, say N.
+
 config MMC_WBSD
         tristate "Winbond W83L51xD SD/MMC Card Interface support"
         depends on ISA_DMA_API
diff --git a/drivers/mmc/host/Makefile b/drivers/mmc/host/Makefile
index f4853288bbb1..98cab84829b8 100644
--- a/drivers/mmc/host/Makefile
+++ b/drivers/mmc/host/Makefile
@@ -15,6 +15,7 @@ obj-$(CONFIG_MMC_RICOH_MMC)	+= ricoh_mmc.o
 obj-$(CONFIG_MMC_WBSD)          += wbsd.o
 obj-$(CONFIG_MMC_AU1X)          += au1xmmc.o
 obj-$(CONFIG_MMC_OMAP)          += omap.o
+obj-$(CONFIG_MMC_OMAP_HS)       += omap_hsmmc.o
 obj-$(CONFIG_MMC_AT91)          += at91_mci.o
 obj-$(CONFIG_MMC_ATMELMCI)      += atmel-mci.o
 obj-$(CONFIG_MMC_TIFM_SD)       += tifm_sd.o
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
new file mode 100644
index 000000000000..db37490f67ec
--- /dev/null
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -0,0 +1,1242 @@
+/*
+ * drivers/mmc/host/omap_hsmmc.c
+ *
+ * Driver for OMAP2430/3430 MMC controller.
+ *
+ * Copyright (C) 2007 Texas Instruments.
+ *
+ * Authors:
+ *      Syed Mohammed Khasim    <x0khasim@ti.com>
+ *      Madhusudhan             <madhu.cr@ti.com>
+ *      Mohit Jalori            <mjalori@ti.com>
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/dma-mapping.h>
+#include <linux/platform_device.h>
+#include <linux/workqueue.h>
+#include <linux/timer.h>
+#include <linux/clk.h>
+#include <linux/mmc/host.h>
+#include <linux/io.h>
+#include <linux/semaphore.h>
+#include <mach/dma.h>
+#include <mach/hardware.h>
+#include <mach/board.h>
+#include <mach/mmc.h>
+#include <mach/cpu.h>
+
+/* OMAP HSMMC Host Controller Registers */
+#define OMAP_HSMMC_SYSCONFIG    0x0010
+#define OMAP_HSMMC_CON          0x002C
+#define OMAP_HSMMC_BLK          0x0104
+#define OMAP_HSMMC_ARG          0x0108
+#define OMAP_HSMMC_CMD          0x010C
+#define OMAP_HSMMC_RSP10        0x0110
+#define OMAP_HSMMC_RSP32        0x0114
+#define OMAP_HSMMC_RSP54        0x0118
+#define OMAP_HSMMC_RSP76        0x011C
+#define OMAP_HSMMC_DATA         0x0120
+#define OMAP_HSMMC_HCTL         0x0128
+#define OMAP_HSMMC_SYSCTL       0x012C
+#define OMAP_HSMMC_STAT         0x0130
+#define OMAP_HSMMC_IE           0x0134
+#define OMAP_HSMMC_ISE          0x0138
+#define OMAP_HSMMC_CAPA         0x0140
+
+#define VS18                    (1 << 26)
+#define VS30                    (1 << 25)
+#define SDVS18                  (0x5 << 9)
+#define SDVS30                  (0x6 << 9)
+#define SDVSCLR                 0xFFFFF1FF
+#define SDVSDET                 0x00000400
+#define AUTOIDLE                0x1
+#define SDBP                    (1 << 8)
+#define DTO                     0xe
+#define ICE                     0x1
+#define ICS                     0x2
+#define CEN                     (1 << 2)
+#define CLKD_MASK               0x0000FFC0
+#define CLKD_SHIFT              6
+#define DTO_MASK                0x000F0000
+#define DTO_SHIFT               16
+#define INT_EN_MASK             0x307F0033
+#define INIT_STREAM             (1 << 1)
+#define DP_SELECT               (1 << 21)
+#define DDIR                    (1 << 4)
+#define DMA_EN                  0x1
+#define MSBS                    (1 << 5)
+#define BCE                     (1 << 1)
+#define FOUR_BIT                (1 << 1)
+#define CC                      0x1
+#define TC                      0x02
+#define OD                      0x1
+#define ERR                     (1 << 15)
+#define CMD_TIMEOUT             (1 << 16)
+#define DATA_TIMEOUT            (1 << 20)
+#define CMD_CRC                 (1 << 17)
+#define DATA_CRC                (1 << 21)
+#define CARD_ERR                (1 << 28)
+#define STAT_CLEAR              0xFFFFFFFF
+#define INIT_STREAM_CMD         0x00000000
+#define DUAL_VOLT_OCR_BIT       7
+#define SRC                     (1 << 25)
+#define SRD                     (1 << 26)
+
+/*
+ * FIXME: Most likely all the data using these _DEVID defines should come
+ * from the platform_data, or implemented in controller and slot specific
+ * functions.
+ */
+#define OMAP_MMC1_DEVID         0
+#define OMAP_MMC2_DEVID         1
+
+#define OMAP_MMC_DATADIR_NONE   0
+#define OMAP_MMC_DATADIR_READ   1
+#define OMAP_MMC_DATADIR_WRITE  2
+#define MMC_TIMEOUT_MS          20
+#define OMAP_MMC_MASTER_CLOCK   96000000
+#define DRIVER_NAME             "mmci-omap-hs"
+
+/*
+ * One controller can have multiple slots, like on some omap boards using
+ * omap.c controller driver. Luckily this is not currently done on any known
+ * omap_hsmmc.c device.
+ */
+#define mmc_slot(host)          (host->pdata->slots[host->slot_id])
+
+/*
+ * MMC Host controller read/write API's
+ */
+#define OMAP_HSMMC_READ(base, reg)      \
+        __raw_readl((base) + OMAP_HSMMC_##reg)
+
+#define OMAP_HSMMC_WRITE(base, reg, val) \
+        __raw_writel((val), (base) + OMAP_HSMMC_##reg)
+
+struct mmc_omap_host {
+        struct  device          *dev;
+        struct  mmc_host        *mmc;
+        struct  mmc_request     *mrq;
+        struct  mmc_command     *cmd;
+        struct  mmc_data        *data;
+        struct  clk             *fclk;
+        struct  clk             *iclk;
+        struct  clk             *dbclk;
+        struct  semaphore       sem;
+        struct  work_struct     mmc_carddetect_work;
+        void    __iomem         *base;
+        resource_size_t         mapbase;
+        unsigned int            id;
+        unsigned int            dma_len;
+        unsigned int            dma_dir;
+        unsigned char           bus_mode;
+        unsigned char           datadir;
+        u32                     *buffer;
+        u32                     bytesleft;
+        int                     suspended;
+        int                     irq;
+        int                     carddetect;
+        int                     use_dma, dma_ch;
+        int                     initstr;
+        int                     slot_id;
+        int                     dbclk_enabled;
+        struct  omap_mmc_platform_data  *pdata;
+};
+
+/*
+ * Stop clock to the card
+ */
+static void omap_mmc_stop_clock(struct mmc_omap_host *host)
+{
+        OMAP_HSMMC_WRITE(host->base, SYSCTL,
+                OMAP_HSMMC_READ(host->base, SYSCTL) & ~CEN);
+        if ((OMAP_HSMMC_READ(host->base, SYSCTL) & CEN) != 0x0)
+                dev_dbg(mmc_dev(host->mmc), "MMC Clock is not stoped\n");
+}
+
+/*
+ * Send init stream sequence to card
+ * before sending IDLE command
+ */
+static void send_init_stream(struct mmc_omap_host *host)
+{
+        int reg = 0;
+        unsigned long timeout;
+
+        disable_irq(host->irq);
+        OMAP_HSMMC_WRITE(host->base, CON,
+                OMAP_HSMMC_READ(host->base, CON) | INIT_STREAM);
+        OMAP_HSMMC_WRITE(host->base, CMD, INIT_STREAM_CMD);
+
+        timeout = jiffies + msecs_to_jiffies(MMC_TIMEOUT_MS);
+        while ((reg != CC) && time_before(jiffies, timeout))
+                reg = OMAP_HSMMC_READ(host->base, STAT) & CC;
+
+        OMAP_HSMMC_WRITE(host->base, CON,
+                OMAP_HSMMC_READ(host->base, CON) & ~INIT_STREAM);
+        enable_irq(host->irq);
+}
+
+static inline
+int mmc_omap_cover_is_closed(struct mmc_omap_host *host)
+{
+        int r = 1;
+
+        if (host->pdata->slots[host->slot_id].get_cover_state)
+                r = host->pdata->slots[host->slot_id].get_cover_state(host->dev,
+                        host->slot_id);
+        return r;
+}
+
+static ssize_t
+mmc_omap_show_cover_switch(struct device *dev, struct device_attribute *attr,
+                           char *buf)
+{
+        struct mmc_host *mmc = container_of(dev, struct mmc_host, class_dev);
+        struct mmc_omap_host *host = mmc_priv(mmc);
+
+        return sprintf(buf, "%s\n", mmc_omap_cover_is_closed(host) ? "closed" :
+                       "open");
+}
+
+static DEVICE_ATTR(cover_switch, S_IRUGO, mmc_omap_show_cover_switch, NULL);
+
+static ssize_t
+mmc_omap_show_slot_name(struct device *dev, struct device_attribute *attr,
+                        char *buf)
+{
+        struct mmc_host *mmc = container_of(dev, struct mmc_host, class_dev);
+        struct mmc_omap_host *host = mmc_priv(mmc);
+        struct omap_mmc_slot_data slot = host->pdata->slots[host->slot_id];
+
+        return sprintf(buf, "slot:%s\n", slot.name);
+}
+
+static DEVICE_ATTR(slot_name, S_IRUGO, mmc_omap_show_slot_name, NULL);
+
+/*
+ * Configure the response type and send the cmd.
+ */
+static void
+mmc_omap_start_command(struct mmc_omap_host *host, struct mmc_command *cmd,
+        struct mmc_data *data)
+{
+        int cmdreg = 0, resptype = 0, cmdtype = 0;
+
+        dev_dbg(mmc_dev(host->mmc), "%s: CMD%d, argument 0x%08x\n",
+                mmc_hostname(host->mmc), cmd->opcode, cmd->arg);
+        host->cmd = cmd;
+
+        /*
+         * Clear status bits and enable interrupts
+         */
+        OMAP_HSMMC_WRITE(host->base, STAT, STAT_CLEAR);
+        OMAP_HSMMC_WRITE(host->base, ISE, INT_EN_MASK);
+        OMAP_HSMMC_WRITE(host->base, IE, INT_EN_MASK);
+
+        if (cmd->flags & MMC_RSP_PRESENT) {
+                if (cmd->flags & MMC_RSP_136)
+                        resptype = 1;
+                else
+                        resptype = 2;
+        }
+
+        /*
+         * Unlike OMAP1 controller, the cmdtype does not seem to be based on
+         * ac, bc, adtc, bcr. Only commands ending an open ended transfer need
+         * a val of 0x3, rest 0x0.
+         */
+        if (cmd == host->mrq->stop)
+                cmdtype = 0x3;
+
+        cmdreg = (cmd->opcode << 24) | (resptype << 16) | (cmdtype << 22);
+
+        if (data) {
+                cmdreg |= DP_SELECT | MSBS | BCE;
+                if (data->flags & MMC_DATA_READ)
+                        cmdreg |= DDIR;
+                else
+                        cmdreg &= ~(DDIR);
+        }
+
+        if (host->use_dma)
+                cmdreg |= DMA_EN;
+
+        OMAP_HSMMC_WRITE(host->base, ARG, cmd->arg);
+        OMAP_HSMMC_WRITE(host->base, CMD, cmdreg);
+}
+
+/*
+ * Notify the transfer complete to MMC core
+ */
+static void
+mmc_omap_xfer_done(struct mmc_omap_host *host, struct mmc_data *data)
+{
+        host->data = NULL;
+
+        if (host->use_dma && host->dma_ch != -1)
+                dma_unmap_sg(mmc_dev(host->mmc), data->sg, host->dma_len,
+                        host->dma_dir);
+
+        host->datadir = OMAP_MMC_DATADIR_NONE;
+
+        if (!data->error)
+                data->bytes_xfered += data->blocks * (data->blksz);
+        else
+                data->bytes_xfered = 0;
+
+        if (!data->stop) {
+                host->mrq = NULL;
+                mmc_request_done(host->mmc, data->mrq);
+                return;
+        }
+        mmc_omap_start_command(host, data->stop, NULL);
+}
+
+/*
+ * Notify the core about command completion
+ */
+static void
+mmc_omap_cmd_done(struct mmc_omap_host *host, struct mmc_command *cmd)
+{
+        host->cmd = NULL;
+
+        if (cmd->flags & MMC_RSP_PRESENT) {
+                if (cmd->flags & MMC_RSP_136) {
+                        /* response type 2 */
+                        cmd->resp[3] = OMAP_HSMMC_READ(host->base, RSP10);
+                        cmd->resp[2] = OMAP_HSMMC_READ(host->base, RSP32);
+                        cmd->resp[1] = OMAP_HSMMC_READ(host->base, RSP54);
+                        cmd->resp[0] = OMAP_HSMMC_READ(host->base, RSP76);
+                } else {
+                        /* response types 1, 1b, 3, 4, 5, 6 */
+                        cmd->resp[0] = OMAP_HSMMC_READ(host->base, RSP10);
+                }
+        }
+        if (host->data == NULL || cmd->error) {
+                host->mrq = NULL;
+                mmc_request_done(host->mmc, cmd->mrq);
+        }
+}
+
+/*
+ * DMA clean up for command errors
+ */
+static void mmc_dma_cleanup(struct mmc_omap_host *host)
+{
+        host->data->error = -ETIMEDOUT;
+
+        if (host->use_dma && host->dma_ch != -1) {
+                dma_unmap_sg(mmc_dev(host->mmc), host->data->sg, host->dma_len,
+                        host->dma_dir);
+                omap_free_dma(host->dma_ch);
+                host->dma_ch = -1;
+                up(&host->sem);
+        }
+        host->data = NULL;
+        host->datadir = OMAP_MMC_DATADIR_NONE;
+}
+
+/*
+ * Readable error output
+ */
+#ifdef CONFIG_MMC_DEBUG
+static void mmc_omap_report_irq(struct mmc_omap_host *host, u32 status)
+{
+        /* --- means reserved bit without definition at documentation */
+        static const char *mmc_omap_status_bits[] = {
+                "CC", "TC", "BGE", "---", "BWR", "BRR", "---", "---", "CIRQ",
+                "OBI", "---", "---", "---", "---", "---", "ERRI", "CTO", "CCRC",
+                "CEB", "CIE", "DTO", "DCRC", "DEB", "---", "ACE", "---",
+                "---", "---", "---", "CERR", "CERR", "BADA", "---", "---", "---"
+        };
+        char res[256];
+        char *buf = res;
+        int len, i;
+
+        len = sprintf(buf, "MMC IRQ 0x%x :", status);
+        buf += len;
+
+        for (i = 0; i < ARRAY_SIZE(mmc_omap_status_bits); i++)
+                if (status & (1 << i)) {
+                        len = sprintf(buf, " %s", mmc_omap_status_bits[i]);
+                        buf += len;
+                }
+
+        dev_dbg(mmc_dev(host->mmc), "%s\n", res);
+}
+#endif  /* CONFIG_MMC_DEBUG */
+
+
+/*
+ * MMC controller IRQ handler
+ */
+static irqreturn_t mmc_omap_irq(int irq, void *dev_id)
+{
+        struct mmc_omap_host *host = dev_id;
+        struct mmc_data *data;
+        int end_cmd = 0, end_trans = 0, status;
+
+        if (host->cmd == NULL && host->data == NULL) {
+                OMAP_HSMMC_WRITE(host->base, STAT,
+                        OMAP_HSMMC_READ(host->base, STAT));
+                return IRQ_HANDLED;
+        }
+
+        data = host->data;
+        status = OMAP_HSMMC_READ(host->base, STAT);
+        dev_dbg(mmc_dev(host->mmc), "IRQ Status is %x\n", status);
+
+        if (status & ERR) {
+#ifdef CONFIG_MMC_DEBUG
+                mmc_omap_report_irq(host, status);
+#endif
+                if ((status & CMD_TIMEOUT) ||
+                        (status & CMD_CRC)) {
+                        if (host->cmd) {
+                                if (status & CMD_TIMEOUT) {
+                                        OMAP_HSMMC_WRITE(host->base, SYSCTL,
+                                                OMAP_HSMMC_READ(host->base,
+                                                                SYSCTL) | SRC);
+                                        while (OMAP_HSMMC_READ(host->base,
+                                                        SYSCTL) & SRC)
+                                                ;
+
+                                        host->cmd->error = -ETIMEDOUT;
+                                } else {
+                                        host->cmd->error = -EILSEQ;
+                                }
+                                end_cmd = 1;
+                        }
+                        if (host->data)
+                                mmc_dma_cleanup(host);
+                }
+                if ((status & DATA_TIMEOUT) ||
+                        (status & DATA_CRC)) {
+                        if (host->data) {
+                                if (status & DATA_TIMEOUT)
+                                        mmc_dma_cleanup(host);
+                                else
+                                        host->data->error = -EILSEQ;
+                                OMAP_HSMMC_WRITE(host->base, SYSCTL,
+                                        OMAP_HSMMC_READ(host->base,
+                                                        SYSCTL) | SRD);
+                                while (OMAP_HSMMC_READ(host->base,
+                                                SYSCTL) & SRD)
+                                        ;
+                                end_trans = 1;
+                        }
+                }
+                if (status & CARD_ERR) {
+                        dev_dbg(mmc_dev(host->mmc),
+                                "Ignoring card err CMD%d\n", host->cmd->opcode);
+                        if (host->cmd)
+                                end_cmd = 1;
+                        if (host->data)
+                                end_trans = 1;
+                }
+        }
+
+        OMAP_HSMMC_WRITE(host->base, STAT, status);
+
+        if (end_cmd || (status & CC))
+                mmc_omap_cmd_done(host, host->cmd);
+        if (end_trans || (status & TC))
+                mmc_omap_xfer_done(host, data);
+
+        return IRQ_HANDLED;
+}
+
+/*
+ * Switch MMC operating voltage
+ */
+static int omap_mmc_switch_opcond(struct mmc_omap_host *host, int vdd)
+{
+        u32 reg_val = 0;
+        int ret;
+
+        /* Disable the clocks */
+        clk_disable(host->fclk);
+        clk_disable(host->iclk);
+        clk_disable(host->dbclk);
+
+        /* Turn the power off */
+        ret = mmc_slot(host).set_power(host->dev, host->slot_id, 0, 0);
+        if (ret != 0)
+                goto err;
+
+        /* Turn the power ON with given VDD 1.8 or 3.0v */
+        ret = mmc_slot(host).set_power(host->dev, host->slot_id, 1, vdd);
+        if (ret != 0)
+                goto err;
+
+        clk_enable(host->fclk);
+        clk_enable(host->iclk);
+        clk_enable(host->dbclk);
+
+        OMAP_HSMMC_WRITE(host->base, HCTL,
+                OMAP_HSMMC_READ(host->base, HCTL) & SDVSCLR);
+        reg_val = OMAP_HSMMC_READ(host->base, HCTL);
+        /*
+         * If a MMC dual voltage card is detected, the set_ios fn calls
+         * this fn with VDD bit set for 1.8V. Upon card removal from the
+         * slot, omap_mmc_set_ios sets the VDD back to 3V on MMC_POWER_OFF.
+         *
+         * Only MMC1 supports 3.0V.  MMC2 will not function if SDVS30 is
+         * set in HCTL.
+         */
+        if (host->id == OMAP_MMC1_DEVID && (((1 << vdd) == MMC_VDD_32_33) ||
+                                ((1 << vdd) == MMC_VDD_33_34)))
+                reg_val |= SDVS30;
+        if ((1 << vdd) == MMC_VDD_165_195)
+                reg_val |= SDVS18;
+
+        OMAP_HSMMC_WRITE(host->base, HCTL, reg_val);
+
+        OMAP_HSMMC_WRITE(host->base, HCTL,
+                OMAP_HSMMC_READ(host->base, HCTL) | SDBP);
+
+        return 0;
+err:
+        dev_dbg(mmc_dev(host->mmc), "Unable to switch operating voltage\n");
+        return ret;
+}
+
+/*
+ * Work Item to notify the core about card insertion/removal
+ */
+static void mmc_omap_detect(struct work_struct *work)
+{
+        struct mmc_omap_host *host = container_of(work, struct mmc_omap_host,
+                                                mmc_carddetect_work);
+
+        sysfs_notify(&host->mmc->class_dev.kobj, NULL, "cover_switch");
+        if (host->carddetect) {
+                mmc_detect_change(host->mmc, (HZ * 200) / 1000);
+        } else {
+                OMAP_HSMMC_WRITE(host->base, SYSCTL,
+                        OMAP_HSMMC_READ(host->base, SYSCTL) | SRD);
+                while (OMAP_HSMMC_READ(host->base, SYSCTL) & SRD)
+                        ;
+
+                mmc_detect_change(host->mmc, (HZ * 50) / 1000);
+        }
+}
+
+/*
+ * ISR for handling card insertion and removal
+ */
+static irqreturn_t omap_mmc_cd_handler(int irq, void *dev_id)
+{
+        struct mmc_omap_host *host = (struct mmc_omap_host *)dev_id;
+
+        host->carddetect = mmc_slot(host).card_detect(irq);
+        schedule_work(&host->mmc_carddetect_work);
+
+        return IRQ_HANDLED;
+}
+
+/*
+ * DMA call back function
+ */
+static void mmc_omap_dma_cb(int lch, u16 ch_status, void *data)
+{
+        struct mmc_omap_host *host = data;
+
+        if (ch_status & OMAP2_DMA_MISALIGNED_ERR_IRQ)
+                dev_dbg(mmc_dev(host->mmc), "MISALIGNED_ADRS_ERR\n");
+
+        if (host->dma_ch < 0)
+                return;
+
+        omap_free_dma(host->dma_ch);
+        host->dma_ch = -1;
+        /*
+         * DMA Callback: run in interrupt context.
+         * mutex_unlock will through a kernel warning if used.
+         */
+        up(&host->sem);
+}
+
+/*
+ * Configure dma src and destination parameters
+ */
+static int mmc_omap_config_dma_param(int sync_dir, struct mmc_omap_host *host,
+                                struct mmc_data *data)
+{
+        if (sync_dir == 0) {
+                omap_set_dma_dest_params(host->dma_ch, 0,
+                        OMAP_DMA_AMODE_CONSTANT,
+                        (host->mapbase + OMAP_HSMMC_DATA), 0, 0);
+                omap_set_dma_src_params(host->dma_ch, 0,
+                        OMAP_DMA_AMODE_POST_INC,
+                        sg_dma_address(&data->sg[0]), 0, 0);
+        } else {
+                omap_set_dma_src_params(host->dma_ch, 0,
+                        OMAP_DMA_AMODE_CONSTANT,
+                        (host->mapbase + OMAP_HSMMC_DATA), 0, 0);
+                omap_set_dma_dest_params(host->dma_ch, 0,
+                        OMAP_DMA_AMODE_POST_INC,
+                        sg_dma_address(&data->sg[0]), 0, 0);
+        }
+        return 0;
+}
+/*
+ * Routine to configure and start DMA for the MMC card
+ */
+static int
+mmc_omap_start_dma_transfer(struct mmc_omap_host *host, struct mmc_request *req)
+{
+        int sync_dev, sync_dir = 0;
+        int dma_ch = 0, ret = 0, err = 1;
+        struct mmc_data *data = req->data;
+
+        /*
+         * If for some reason the DMA transfer is still active,
+         * we wait for timeout period and free the dma
+         */
+        if (host->dma_ch != -1) {
+                set_current_state(TASK_UNINTERRUPTIBLE);
+                schedule_timeout(100);
+                if (down_trylock(&host->sem)) {
+                        omap_free_dma(host->dma_ch);
+                        host->dma_ch = -1;
+                        up(&host->sem);
+                        return err;
+                }
+        } else {
+                if (down_trylock(&host->sem))
+                        return err;
+        }
+
+        if (!(data->flags & MMC_DATA_WRITE)) {
+                host->dma_dir = DMA_FROM_DEVICE;
+                if (host->id == OMAP_MMC1_DEVID)
+                        sync_dev = OMAP24XX_DMA_MMC1_RX;
+                else
+                        sync_dev = OMAP24XX_DMA_MMC2_RX;
+        } else {
+                host->dma_dir = DMA_TO_DEVICE;
+                if (host->id == OMAP_MMC1_DEVID)
+                        sync_dev = OMAP24XX_DMA_MMC1_TX;
+                else
+                        sync_dev = OMAP24XX_DMA_MMC2_TX;
+        }
+
+        ret = omap_request_dma(sync_dev, "MMC/SD", mmc_omap_dma_cb,
+                        host, &dma_ch);
+        if (ret != 0) {
+                dev_dbg(mmc_dev(host->mmc),
+                        "%s: omap_request_dma() failed with %d\n",
+                        mmc_hostname(host->mmc), ret);
+                return ret;
+        }
+
+        host->dma_len = dma_map_sg(mmc_dev(host->mmc), data->sg,
+                        data->sg_len, host->dma_dir);
+        host->dma_ch = dma_ch;
+
+        if (!(data->flags & MMC_DATA_WRITE))
+                mmc_omap_config_dma_param(1, host, data);
+        else
+                mmc_omap_config_dma_param(0, host, data);
+
+        if ((data->blksz % 4) == 0)
+                omap_set_dma_transfer_params(dma_ch, OMAP_DMA_DATA_TYPE_S32,
+                        (data->blksz / 4), data->blocks, OMAP_DMA_SYNC_FRAME,
+                        sync_dev, sync_dir);
+        else
+                /* REVISIT: The MMC buffer increments only when MSB is written.
+                 * Return error for blksz which is non multiple of four.
+                 */
+                return -EINVAL;
+
+        omap_start_dma(dma_ch);
+        return 0;
+}
+
+static void set_data_timeout(struct mmc_omap_host *host,
+                             struct mmc_request *req)
+{
+        unsigned int timeout, cycle_ns;
+        uint32_t reg, clkd, dto = 0;
+
+        reg = OMAP_HSMMC_READ(host->base, SYSCTL);
+        clkd = (reg & CLKD_MASK) >> CLKD_SHIFT;
+        if (clkd == 0)
+                clkd = 1;
+
+        cycle_ns = 1000000000 / (clk_get_rate(host->fclk) / clkd);
+        timeout = req->data->timeout_ns / cycle_ns;
+        timeout += req->data->timeout_clks;
+        if (timeout) {
+                while ((timeout & 0x80000000) == 0) {
+                        dto += 1;
+                        timeout <<= 1;
+                }
+                dto = 31 - dto;
+                timeout <<= 1;
+                if (timeout && dto)
+                        dto += 1;
+                if (dto >= 13)
+                        dto -= 13;
+                else
+                        dto = 0;
+                if (dto > 14)
+                        dto = 14;
+        }
+
+        reg &= ~DTO_MASK;
+        reg |= dto << DTO_SHIFT;
+        OMAP_HSMMC_WRITE(host->base, SYSCTL, reg);
+}
+
+/*
+ * Configure block length for MMC/SD cards and initiate the transfer.
+ */
+static int
+mmc_omap_prepare_data(struct mmc_omap_host *host, struct mmc_request *req)
+{
+        int ret;
+        host->data = req->data;
+
+        if (req->data == NULL) {
+                host->datadir = OMAP_MMC_DATADIR_NONE;
+                OMAP_HSMMC_WRITE(host->base, BLK, 0);
+                return 0;
+        }
+
+        OMAP_HSMMC_WRITE(host->base, BLK, (req->data->blksz)
+                                        | (req->data->blocks << 16));
+        set_data_timeout(host, req);
+
+        host->datadir = (req->data->flags & MMC_DATA_WRITE) ?
+                        OMAP_MMC_DATADIR_WRITE : OMAP_MMC_DATADIR_READ;
+
+        if (host->use_dma) {
+                ret = mmc_omap_start_dma_transfer(host, req);
+                if (ret != 0) {
+                        dev_dbg(mmc_dev(host->mmc), "MMC start dma failure\n");
+                        return ret;
+                }
+        }
+        return 0;
+}
+
+/*
+ * Request function. for read/write operation
+ */
+static void omap_mmc_request(struct mmc_host *mmc, struct mmc_request *req)
+{
+        struct mmc_omap_host *host = mmc_priv(mmc);
+
+        WARN_ON(host->mrq != NULL);
+        host->mrq = req;
+        mmc_omap_prepare_data(host, req);
+        mmc_omap_start_command(host, req->cmd, req->data);
+}
+
+
+/* Routine to configure clock values. Exposed API to core */
+static void omap_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
+{
+        struct mmc_omap_host *host = mmc_priv(mmc);
+        u16 dsor = 0;
+        unsigned long regval;
+        unsigned long timeout;
+
+        switch (ios->power_mode) {
+        case MMC_POWER_OFF:
+                mmc_slot(host).set_power(host->dev, host->slot_id, 0, 0);
+                /*
+                 * Reset bus voltage to 3V if it got set to 1.8V earlier.
+                 * REVISIT: If we are able to detect cards after unplugging
+                 * a 1.8V card, this code should not be needed.
+                 */
+                if (!(OMAP_HSMMC_READ(host->base, HCTL) & SDVSDET)) {
+                        int vdd = fls(host->mmc->ocr_avail) - 1;
+                        if (omap_mmc_switch_opcond(host, vdd) != 0)
+                                host->mmc->ios.vdd = vdd;
+                }
+                break;
+        case MMC_POWER_UP:
+                mmc_slot(host).set_power(host->dev, host->slot_id, 1, ios->vdd);
+                break;
+        }
+
+        switch (mmc->ios.bus_width) {
+        case MMC_BUS_WIDTH_4:
+                OMAP_HSMMC_WRITE(host->base, HCTL,
+                        OMAP_HSMMC_READ(host->base, HCTL) | FOUR_BIT);
+                break;
+        case MMC_BUS_WIDTH_1:
+                OMAP_HSMMC_WRITE(host->base, HCTL,
+                        OMAP_HSMMC_READ(host->base, HCTL) & ~FOUR_BIT);
+                break;
+        }
+
+        if (host->id == OMAP_MMC1_DEVID) {
+                /* Only MMC1 can operate at 3V/1.8V */
+                if ((OMAP_HSMMC_READ(host->base, HCTL) & SDVSDET) &&
+                        (ios->vdd == DUAL_VOLT_OCR_BIT)) {
+                                /*
+                                 * The mmc_select_voltage fn of the core does
+                                 * not seem to set the power_mode to
+                                 * MMC_POWER_UP upon recalculating the voltage.
+                                 * vdd 1.8v.
+                                 */
+                                if (omap_mmc_switch_opcond(host, ios->vdd) != 0)
+                                        dev_dbg(mmc_dev(host->mmc),
+                                                "Switch operation failed\n");
+                }
+        }
+
+        if (ios->clock) {
+                dsor = OMAP_MMC_MASTER_CLOCK / ios->clock;
+                if (dsor < 1)
+                        dsor = 1;
+
+                if (OMAP_MMC_MASTER_CLOCK / dsor > ios->clock)
+                        dsor++;
+
+                if (dsor > 250)
+                        dsor = 250;
+        }
+        omap_mmc_stop_clock(host);
+        regval = OMAP_HSMMC_READ(host->base, SYSCTL);
+        regval = regval & ~(CLKD_MASK);
+        regval = regval | (dsor << 6) | (DTO << 16);
+        OMAP_HSMMC_WRITE(host->base, SYSCTL, regval);
+        OMAP_HSMMC_WRITE(host->base, SYSCTL,
+                OMAP_HSMMC_READ(host->base, SYSCTL) | ICE);
+
+        /* Wait till the ICS bit is set */
+        timeout = jiffies + msecs_to_jiffies(MMC_TIMEOUT_MS);
+        while ((OMAP_HSMMC_READ(host->base, SYSCTL) & ICS) != 0x2
+                && time_before(jiffies, timeout))
+                msleep(1);
+
+        OMAP_HSMMC_WRITE(host->base, SYSCTL,
+                OMAP_HSMMC_READ(host->base, SYSCTL) | CEN);
+
+        if (ios->power_mode == MMC_POWER_ON)
+                send_init_stream(host);
+
+        if (ios->bus_mode == MMC_BUSMODE_OPENDRAIN)
+                OMAP_HSMMC_WRITE(host->base, CON,
+                                OMAP_HSMMC_READ(host->base, CON) | OD);
+}
+
+static int omap_hsmmc_get_cd(struct mmc_host *mmc)
+{
+        struct mmc_omap_host *host = mmc_priv(mmc);
+        struct omap_mmc_platform_data *pdata = host->pdata;
+
+        if (!pdata->slots[0].card_detect)
+                return -ENOSYS;
+        return pdata->slots[0].card_detect(pdata->slots[0].card_detect_irq);
+}
+
+static int omap_hsmmc_get_ro(struct mmc_host *mmc)
+{
+        struct mmc_omap_host *host = mmc_priv(mmc);
+        struct omap_mmc_platform_data *pdata = host->pdata;
+
+        if (!pdata->slots[0].get_ro)
+                return -ENOSYS;
+        return pdata->slots[0].get_ro(host->dev, 0);
+}
+
+static struct mmc_host_ops mmc_omap_ops = {
+        .request = omap_mmc_request,
+        .set_ios = omap_mmc_set_ios,
+        .get_cd = omap_hsmmc_get_cd,
+        .get_ro = omap_hsmmc_get_ro,
+        /* NYET -- enable_sdio_irq */
+};
+
+static int __init omap_mmc_probe(struct platform_device *pdev)
+{
+        struct omap_mmc_platform_data *pdata = pdev->dev.platform_data;
+        struct mmc_host *mmc;
+        struct mmc_omap_host *host = NULL;
+        struct resource *res;
+        int ret = 0, irq;
+        u32 hctl, capa;
+
+        if (pdata == NULL) {
+                dev_err(&pdev->dev, "Platform Data is missing\n");
+                return -ENXIO;
+        }
+
+        if (pdata->nr_slots == 0) {
+                dev_err(&pdev->dev, "No Slots\n");
+                return -ENXIO;
+        }
+
+        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+        irq = platform_get_irq(pdev, 0);
+        if (res == NULL || irq < 0)
+                return -ENXIO;
+
+        res = request_mem_region(res->start, res->end - res->start + 1,
+                                                        pdev->name);
+        if (res == NULL)
+                return -EBUSY;
+
+        mmc = mmc_alloc_host(sizeof(struct mmc_omap_host), &pdev->dev);
+        if (!mmc) {
+                ret = -ENOMEM;
+                goto err;
+        }
+
+        host            = mmc_priv(mmc);
+        host->mmc       = mmc;
+        host->pdata     = pdata;
+        host->dev       = &pdev->dev;
+        host->use_dma   = 1;
+        host->dev->dma_mask = &pdata->dma_mask;
+        host->dma_ch    = -1;
+        host->irq       = irq;
+        host->id        = pdev->id;
+        host->slot_id   = 0;
+        host->mapbase   = res->start;
+        host->base      = ioremap(host->mapbase, SZ_4K);
+
+        platform_set_drvdata(pdev, host);
+        INIT_WORK(&host->mmc_carddetect_work, mmc_omap_detect);
+
+        mmc->ops        = &mmc_omap_ops;
+        mmc->f_min      = 400000;
+        mmc->f_max      = 52000000;
+
+        sema_init(&host->sem, 1);
+
+        host->iclk = clk_get(&pdev->dev, "mmchs_ick");
+        if (IS_ERR(host->iclk)) {
+                ret = PTR_ERR(host->iclk);
+                host->iclk = NULL;
+                goto err1;
+        }
+        host->fclk = clk_get(&pdev->dev, "mmchs_fck");
+        if (IS_ERR(host->fclk)) {
+                ret = PTR_ERR(host->fclk);
+                host->fclk = NULL;
+                clk_put(host->iclk);
+                goto err1;
+        }
+
+        if (clk_enable(host->fclk) != 0) {
+                clk_put(host->iclk);
+                clk_put(host->fclk);
+                goto err1;
+        }
+
+        if (clk_enable(host->iclk) != 0) {
+                clk_disable(host->fclk);
+                clk_put(host->iclk);
+                clk_put(host->fclk);
+                goto err1;
+        }
+
+        host->dbclk = clk_get(&pdev->dev, "mmchsdb_fck");
+        /*
+         * MMC can still work without debounce clock.
+         */
+        if (IS_ERR(host->dbclk))
+                dev_warn(mmc_dev(host->mmc), "Failed to get debounce clock\n");
+        else
+                if (clk_enable(host->dbclk) != 0)
+                        dev_dbg(mmc_dev(host->mmc), "Enabling debounce"
+                                                        " clk failed\n");
+                else
+                        host->dbclk_enabled = 1;
+
+#ifdef CONFIG_MMC_BLOCK_BOUNCE
+        mmc->max_phys_segs = 1;
+        mmc->max_hw_segs = 1;
+#endif
+        mmc->max_blk_size = 512;       /* Block Length at max can be 1024 */
+        mmc->max_blk_count = 0xFFFF;    /* No. of Blocks is 16 bits */
+        mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count;
+        mmc->max_seg_size = mmc->max_req_size;
+
+        mmc->ocr_avail = mmc_slot(host).ocr_mask;
+        mmc->caps |= MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED;
+
+        if (pdata->slots[host->slot_id].wires >= 4)
+                mmc->caps |= MMC_CAP_4_BIT_DATA;
+
+        /* Only MMC1 supports 3.0V */
+        if (host->id == OMAP_MMC1_DEVID) {
+                hctl = SDVS30;
+                capa = VS30 | VS18;
+        } else {
+                hctl = SDVS18;
+                capa = VS18;
+        }
+
+        OMAP_HSMMC_WRITE(host->base, HCTL,
+                        OMAP_HSMMC_READ(host->base, HCTL) | hctl);
+
+        OMAP_HSMMC_WRITE(host->base, CAPA,
+                        OMAP_HSMMC_READ(host->base, CAPA) | capa);
+
+        /* Set the controller to AUTO IDLE mode */
+        OMAP_HSMMC_WRITE(host->base, SYSCONFIG,
+                        OMAP_HSMMC_READ(host->base, SYSCONFIG) | AUTOIDLE);
+
+        /* Set SD bus power bit */
+        OMAP_HSMMC_WRITE(host->base, HCTL,
+                        OMAP_HSMMC_READ(host->base, HCTL) | SDBP);
+
+        /* Request IRQ for MMC operations */
+        ret = request_irq(host->irq, mmc_omap_irq, IRQF_DISABLED,
+                        mmc_hostname(mmc), host);
+        if (ret) {
+                dev_dbg(mmc_dev(host->mmc), "Unable to grab HSMMC IRQ\n");
+                goto err_irq;
+        }
+
+        if (pdata->init != NULL) {
+                if (pdata->init(&pdev->dev) != 0) {
+                        dev_dbg(mmc_dev(host->mmc),
+                                "Unable to configure MMC IRQs\n");
+                        goto err_irq_cd_init;
+                }
+        }
+
+        /* Request IRQ for card detect */
+        if ((mmc_slot(host).card_detect_irq) && (mmc_slot(host).card_detect)) {
+                ret = request_irq(mmc_slot(host).card_detect_irq,
+                                  omap_mmc_cd_handler,
+                                  IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING
+                                          | IRQF_DISABLED,
+                                  mmc_hostname(mmc), host);
+                if (ret) {
+                        dev_dbg(mmc_dev(host->mmc),
+                                "Unable to grab MMC CD IRQ\n");
+                        goto err_irq_cd;
+                }
+        }
+
+        OMAP_HSMMC_WRITE(host->base, ISE, INT_EN_MASK);
+        OMAP_HSMMC_WRITE(host->base, IE, INT_EN_MASK);
+
+        mmc_add_host(mmc);
+
+        if (host->pdata->slots[host->slot_id].name != NULL) {
+                ret = device_create_file(&mmc->class_dev, &dev_attr_slot_name);
+                if (ret < 0)
+                        goto err_slot_name;
+        }
+        if (mmc_slot(host).card_detect_irq && mmc_slot(host).card_detect &&
+                        host->pdata->slots[host->slot_id].get_cover_state) {
+                ret = device_create_file(&mmc->class_dev,
+                                        &dev_attr_cover_switch);
+                if (ret < 0)
+                        goto err_cover_switch;
+        }
+
+        return 0;
+
+err_cover_switch:
+        device_remove_file(&mmc->class_dev, &dev_attr_cover_switch);
+err_slot_name:
+        mmc_remove_host(mmc);
+err_irq_cd:
+        free_irq(mmc_slot(host).card_detect_irq, host);
+err_irq_cd_init:
+        free_irq(host->irq, host);
+err_irq:
+        clk_disable(host->fclk);
+        clk_disable(host->iclk);
+        clk_put(host->fclk);
+        clk_put(host->iclk);
+        if (host->dbclk_enabled) {
+                clk_disable(host->dbclk);
+                clk_put(host->dbclk);
+        }
+
+err1:
+        iounmap(host->base);
+err:
+        dev_dbg(mmc_dev(host->mmc), "Probe Failed\n");
+        release_mem_region(res->start, res->end - res->start + 1);
+        if (host)
+                mmc_free_host(mmc);
+        return ret;
+}
+
+static int omap_mmc_remove(struct platform_device *pdev)
+{
+        struct mmc_omap_host *host = platform_get_drvdata(pdev);
+        struct resource *res;
+
+        if (host) {
+                mmc_remove_host(host->mmc);
+                if (host->pdata->cleanup)
+                        host->pdata->cleanup(&pdev->dev);
+                free_irq(host->irq, host);
+                if (mmc_slot(host).card_detect_irq)
+                        free_irq(mmc_slot(host).card_detect_irq, host);
+                flush_scheduled_work();
+
+                clk_disable(host->fclk);
+                clk_disable(host->iclk);
+                clk_put(host->fclk);
+                clk_put(host->iclk);
+                if (host->dbclk_enabled) {
+                        clk_disable(host->dbclk);
+                        clk_put(host->dbclk);
+                }
+
+                mmc_free_host(host->mmc);
+                iounmap(host->base);
+        }
+
+        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+        if (res)
+                release_mem_region(res->start, res->end - res->start + 1);
+        platform_set_drvdata(pdev, NULL);
+
+        return 0;
+}
+
+#ifdef CONFIG_PM
+static int omap_mmc_suspend(struct platform_device *pdev, pm_message_t state)
+{
+        int ret = 0;
+        struct mmc_omap_host *host = platform_get_drvdata(pdev);
+
+        if (host && host->suspended)
+                return 0;
+
+        if (host) {
+                ret = mmc_suspend_host(host->mmc, state);
+                if (ret == 0) {
+                        host->suspended = 1;
+
+                        OMAP_HSMMC_WRITE(host->base, ISE, 0);
+                        OMAP_HSMMC_WRITE(host->base, IE, 0);
+
+                        if (host->pdata->suspend) {
+                                ret = host->pdata->suspend(&pdev->dev,
+                                                                host->slot_id);
+                                if (ret)
+                                        dev_dbg(mmc_dev(host->mmc),
+                                                "Unable to handle MMC board"
+                                                " level suspend\n");
+                        }
+
+                        if (!(OMAP_HSMMC_READ(host->base, HCTL) & SDVSDET)) {
+                                OMAP_HSMMC_WRITE(host->base, HCTL,
+                                        OMAP_HSMMC_READ(host->base, HCTL)
+                                        & SDVSCLR);
+                                OMAP_HSMMC_WRITE(host->base, HCTL,
+                                        OMAP_HSMMC_READ(host->base, HCTL)
+                                        | SDVS30);
+                                OMAP_HSMMC_WRITE(host->base, HCTL,
+                                        OMAP_HSMMC_READ(host->base, HCTL)
+                                        | SDBP);
+                        }
+
+                        clk_disable(host->fclk);
+                        clk_disable(host->iclk);
+                        clk_disable(host->dbclk);
+                }
+
+        }
+        return ret;
+}
+
+/* Routine to resume the MMC device */
+static int omap_mmc_resume(struct platform_device *pdev)
+{
+        int ret = 0;
+        struct mmc_omap_host *host = platform_get_drvdata(pdev);
+
+        if (host && !host->suspended)
+                return 0;
+
+        if (host) {
+
+                ret = clk_enable(host->fclk);
+                if (ret)
+                        goto clk_en_err;
+
+                ret = clk_enable(host->iclk);
+                if (ret) {
+                        clk_disable(host->fclk);
+                        clk_put(host->fclk);
+                        goto clk_en_err;
+                }
+
+                if (clk_enable(host->dbclk) != 0)
+                        dev_dbg(mmc_dev(host->mmc),
+                                        "Enabling debounce clk failed\n");
+
+                if (host->pdata->resume) {
+                        ret = host->pdata->resume(&pdev->dev, host->slot_id);
+                        if (ret)
+                                dev_dbg(mmc_dev(host->mmc),
+                                        "Unmask interrupt failed\n");
+                }
+
+                /* Notify the core to resume the host */
+                ret = mmc_resume_host(host->mmc);
+                if (ret == 0)
+                        host->suspended = 0;
+        }
+
+        return ret;
+
+clk_en_err:
+        dev_dbg(mmc_dev(host->mmc),
+                "Failed to enable MMC clocks during resume\n");
+        return ret;
+}
+
+#else
+#define omap_mmc_suspend        NULL
+#define omap_mmc_resume         NULL
+#endif
+
+static struct platform_driver omap_mmc_driver = {
+        .probe          = omap_mmc_probe,
+        .remove         = omap_mmc_remove,
+        .suspend        = omap_mmc_suspend,
+        .resume         = omap_mmc_resume,
+        .driver         = {
+                .name = DRIVER_NAME,
+                .owner = THIS_MODULE,
+        },
+};
+
+static int __init omap_mmc_init(void)
+{
+        /* Register the MMC driver */
+        return platform_driver_register(&omap_mmc_driver);
+}
+
+static void __exit omap_mmc_cleanup(void)
+{
+        /* Unregister MMC driver */
+        platform_driver_unregister(&omap_mmc_driver);
+}
+
+module_init(omap_mmc_init);
+module_exit(omap_mmc_cleanup);
+
+MODULE_DESCRIPTION("OMAP High Speed Multimedia Card driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRIVER_NAME);
+MODULE_AUTHOR("Texas Instruments Inc");
diff --git a/drivers/mmc/host/s3cmci.c b/drivers/mmc/host/s3cmci.c
index fcc98a4cce3c..35a98eec7414 100644
--- a/drivers/mmc/host/s3cmci.c
+++ b/drivers/mmc/host/s3cmci.c
@@ -20,7 +20,7 @@
 #include <linux/irq.h>
 #include <linux/io.h>
 
-#include <asm/dma.h>
+#include <mach/dma.h>
 
 #include <mach/regs-sdi.h>
 #include <mach/regs-gpio.h>
diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c
index 96ecc1766fa8..77a4f1446156 100644
--- a/drivers/mtd/onenand/omap2.c
+++ b/drivers/mtd/onenand/omap2.c
@@ -629,7 +629,7 @@ static int __devinit omap2_onenand_probe(struct platform_device *pdev)
         }
 
         if (c->gpio_irq) {
-                if ((r = omap_request_gpio(c->gpio_irq)) < 0) {
+                if ((r = gpio_request(c->gpio_irq, "OneNAND irq")) < 0) {
                         dev_err(&pdev->dev,  "Failed to request GPIO%d for "
                                 "OneNAND\n", c->gpio_irq);
                         goto err_iounmap;
@@ -726,7 +726,7 @@ err_release_dma:
                 free_irq(gpio_to_irq(c->gpio_irq), c);
 err_release_gpio:
         if (c->gpio_irq)
-                omap_free_gpio(c->gpio_irq);
+                gpio_free(c->gpio_irq);
 err_iounmap:
         iounmap(c->onenand.base);
 err_release_mem_region:
@@ -761,7 +761,7 @@ static int __devexit omap2_onenand_remove(struct platform_device *pdev)
         platform_set_drvdata(pdev, NULL);
         if (c->gpio_irq) {
                 free_irq(gpio_to_irq(c->gpio_irq), c);
-                omap_free_gpio(c->gpio_irq);
+                gpio_free(c->gpio_irq);
         }
         iounmap(c->onenand.base);
         release_mem_region(c->phys_base, ONENAND_IO_SIZE);
diff --git a/drivers/net/arm/am79c961a.c b/drivers/net/arm/am79c961a.c
index 0c628a9e5339..c2d012fcc29b 100644
--- a/drivers/net/arm/am79c961a.c
+++ b/drivers/net/arm/am79c961a.c
@@ -208,9 +208,9 @@ am79c961_init_for_open(struct net_device *dev)
         /*
          * Stop the chip.
          */
-        spin_lock_irqsave(priv->chip_lock, flags);
+        spin_lock_irqsave(&priv->chip_lock, flags);
         write_rreg (dev->base_addr, CSR0, CSR0_BABL|CSR0_CERR|CSR0_MISS|CSR0_MERR|CSR0_TINT|CSR0_RINT|CSR0_STOP);
-        spin_unlock_irqrestore(priv->chip_lock, flags);
+        spin_unlock_irqrestore(&priv->chip_lock, flags);
 
         write_ireg (dev->base_addr, 5, 0x00a0); /* Receive address LED */
         write_ireg (dev->base_addr, 6, 0x0081); /* Collision LED */
@@ -332,10 +332,10 @@ am79c961_close(struct net_device *dev)
         netif_stop_queue(dev);
         netif_carrier_off(dev);
 
-        spin_lock_irqsave(priv->chip_lock, flags);
+        spin_lock_irqsave(&priv->chip_lock, flags);
         write_rreg (dev->base_addr, CSR0, CSR0_STOP);
         write_rreg (dev->base_addr, CSR3, CSR3_MASKALL);
-        spin_unlock_irqrestore(priv->chip_lock, flags);
+        spin_unlock_irqrestore(&priv->chip_lock, flags);
 
         free_irq (dev->irq, dev);
 
@@ -391,7 +391,7 @@ static void am79c961_setmulticastlist (struct net_device *dev)
                         am79c961_mc_hash(dmi, multi_hash);
         }
 
-        spin_lock_irqsave(priv->chip_lock, flags);
+        spin_lock_irqsave(&priv->chip_lock, flags);
 
         stopped = read_rreg(dev->base_addr, CSR0) & CSR0_STOP;
 
@@ -405,9 +405,9 @@ static void am79c961_setmulticastlist (struct net_device *dev)
                  * Spin waiting for chip to report suspend mode
                  */
                 while ((read_rreg(dev->base_addr, CTRL1) & CTRL1_SPND) == 0) {
-                        spin_unlock_irqrestore(priv->chip_lock, flags);
+                        spin_unlock_irqrestore(&priv->chip_lock, flags);
                         nop();
-                        spin_lock_irqsave(priv->chip_lock, flags);
+                        spin_lock_irqsave(&priv->chip_lock, flags);
                 }
         }
 
@@ -429,7 +429,7 @@ static void am79c961_setmulticastlist (struct net_device *dev)
                 write_rreg(dev->base_addr, CTRL1, 0);
         }
 
-        spin_unlock_irqrestore(priv->chip_lock, flags);
+        spin_unlock_irqrestore(&priv->chip_lock, flags);
 }
 
 static void am79c961_timeout(struct net_device *dev)
@@ -467,10 +467,10 @@ am79c961_sendpacket(struct sk_buff *skb, struct net_device *dev)
         am_writeword (dev, hdraddr + 2, TMD_OWN|TMD_STP|TMD_ENP);
         priv->txhead = head;
 
-        spin_lock_irqsave(priv->chip_lock, flags);
+        spin_lock_irqsave(&priv->chip_lock, flags);
         write_rreg (dev->base_addr, CSR0, CSR0_TDMD|CSR0_IENA);
         dev->trans_start = jiffies;
-        spin_unlock_irqrestore(priv->chip_lock, flags);
+        spin_unlock_irqrestore(&priv->chip_lock, flags);
 
         /*
          * If the next packet is owned by the ethernet device,
diff --git a/drivers/net/bnx2x_main.c b/drivers/net/bnx2x_main.c
index 21764bfc048e..71f81c79d638 100644
--- a/drivers/net/bnx2x_main.c
+++ b/drivers/net/bnx2x_main.c
@@ -57,8 +57,8 @@
 #include "bnx2x.h"
 #include "bnx2x_init.h"
 
-#define DRV_MODULE_VERSION      "1.45.24"
-#define DRV_MODULE_RELDATE      "2009/01/14"
+#define DRV_MODULE_VERSION      "1.45.26"
+#define DRV_MODULE_RELDATE      "2009/01/26"
 #define BNX2X_BC_VER            0x040200
 
 /* Time in jiffies before concluding the transmitter is hung */
@@ -740,8 +740,15 @@ static inline int bnx2x_has_tx_work(struct bnx2x_fastpath *fp)
         /* Tell compiler that status block fields can change */
         barrier();
         tx_cons_sb = le16_to_cpu(*fp->tx_cons_sb);
-        return ((fp->tx_pkt_prod != tx_cons_sb) ||
-                (fp->tx_pkt_prod != fp->tx_pkt_cons));
+        return (fp->tx_pkt_cons != tx_cons_sb);
+}
+
+static inline int bnx2x_has_tx_work_unload(struct bnx2x_fastpath *fp)
+{
+        /* Tell compiler that consumer and producer can change */
+        barrier();
+        return (fp->tx_pkt_prod != fp->tx_pkt_cons);
+
 }
 
 /* free skb in the packet ring at pos idx
@@ -5148,12 +5155,21 @@ static void enable_blocks_attention(struct bnx2x *bp)
 }
 
 
+static void bnx2x_reset_common(struct bnx2x *bp)
+{
+        /* reset_common */
+        REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_CLEAR,
+               0xd3ffff7f);
+        REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR, 0x1403);
+}
+
 static int bnx2x_init_common(struct bnx2x *bp)
 {
         u32 val, i;
 
         DP(BNX2X_MSG_MCP, "starting common init  func %d\n", BP_FUNC(bp));
 
+        bnx2x_reset_common(bp);
         REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_SET, 0xffffffff);
         REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET, 0xfffc);
 
@@ -6134,8 +6150,8 @@ static void bnx2x_netif_start(struct bnx2x *bp)
 static void bnx2x_netif_stop(struct bnx2x *bp, int disable_hw)
 {
         bnx2x_int_disable_sync(bp, disable_hw);
+        bnx2x_napi_disable(bp);
         if (netif_running(bp->dev)) {
-                bnx2x_napi_disable(bp);
                 netif_tx_disable(bp->dev);
                 bp->dev->trans_start = jiffies; /* prevent tx timeout */
         }
@@ -6319,7 +6335,7 @@ static void bnx2x_set_rx_mode(struct net_device *dev);
 static int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
 {
         u32 load_code;
-        int i, rc;
+        int i, rc = 0;
 #ifdef BNX2X_STOP_ON_ERROR
         if (unlikely(bp->panic))
                 return -EPERM;
@@ -6327,48 +6343,6 @@ static int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
 
         bp->state = BNX2X_STATE_OPENING_WAIT4_LOAD;
 
-        /* Send LOAD_REQUEST command to MCP
-           Returns the type of LOAD command:
-           if it is the first port to be initialized
-           common blocks should be initialized, otherwise - not
-        */
-        if (!BP_NOMCP(bp)) {
-                load_code = bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_REQ);
-                if (!load_code) {
-                        BNX2X_ERR("MCP response failure, aborting\n");
-                        return -EBUSY;
-                }
-                if (load_code == FW_MSG_CODE_DRV_LOAD_REFUSED)
-                        return -EBUSY; /* other port in diagnostic mode */
-
-        } else {
-                int port = BP_PORT(bp);
-
-                DP(NETIF_MSG_IFUP, "NO MCP load counts before us %d, %d, %d\n",
-                   load_count[0], load_count[1], load_count[2]);
-                load_count[0]++;
-                load_count[1 + port]++;
-                DP(NETIF_MSG_IFUP, "NO MCP new load counts       %d, %d, %d\n",
-                   load_count[0], load_count[1], load_count[2]);
-                if (load_count[0] == 1)
-                        load_code = FW_MSG_CODE_DRV_LOAD_COMMON;
-                else if (load_count[1 + port] == 1)
-                        load_code = FW_MSG_CODE_DRV_LOAD_PORT;
-                else
-                        load_code = FW_MSG_CODE_DRV_LOAD_FUNCTION;
-        }
-
-        if ((load_code == FW_MSG_CODE_DRV_LOAD_COMMON) ||
-            (load_code == FW_MSG_CODE_DRV_LOAD_PORT))
-                bp->port.pmf = 1;
-        else
-                bp->port.pmf = 0;
-        DP(NETIF_MSG_LINK, "pmf %d\n", bp->port.pmf);
-
-        /* if we can't use MSI-X we only need one fp,
-         * so try to enable MSI-X with the requested number of fp's
-         * and fallback to inta with one fp
-         */
         if (use_inta) {
                 bp->num_queues = 1;
 
@@ -6383,7 +6357,15 @@ static int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
                 else
                         bp->num_queues = 1;
 
-                if (bnx2x_enable_msix(bp)) {
+                DP(NETIF_MSG_IFUP,
+                   "set number of queues to %d\n", bp->num_queues);
+
+                /* if we can't use MSI-X we only need one fp,
+                 * so try to enable MSI-X with the requested number of fp's
+                 * and fallback to MSI or legacy INTx with one fp
+                 */
+                rc = bnx2x_enable_msix(bp);
+                if (rc) {
                         /* failed to enable MSI-X */
                         bp->num_queues = 1;
                         if (use_multi)
@@ -6391,8 +6373,6 @@ static int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
                                           " to enable MSI-X\n");
                 }
         }
-        DP(NETIF_MSG_IFUP,
-           "set number of queues to %d\n", bp->num_queues);
 
         if (bnx2x_alloc_mem(bp))
                 return -ENOMEM;
@@ -6401,30 +6381,85 @@ static int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
                 bnx2x_fp(bp, i, disable_tpa) =
                                         ((bp->flags & TPA_ENABLE_FLAG) == 0);
 
+        for_each_queue(bp, i)
+                netif_napi_add(bp->dev, &bnx2x_fp(bp, i, napi),
+                               bnx2x_poll, 128);
+
+#ifdef BNX2X_STOP_ON_ERROR
+        for_each_queue(bp, i) {
+                struct bnx2x_fastpath *fp = &bp->fp[i];
+
+                fp->poll_no_work = 0;
+                fp->poll_calls = 0;
+                fp->poll_max_calls = 0;
+                fp->poll_complete = 0;
+                fp->poll_exit = 0;
+        }
+#endif
+        bnx2x_napi_enable(bp);
+
         if (bp->flags & USING_MSIX_FLAG) {
                 rc = bnx2x_req_msix_irqs(bp);
                 if (rc) {
                         pci_disable_msix(bp->pdev);
-                        goto load_error;
+                        goto load_error1;
                 }
+                printk(KERN_INFO PFX "%s: using MSI-X\n", bp->dev->name);
         } else {
                 bnx2x_ack_int(bp);
                 rc = bnx2x_req_irq(bp);
                 if (rc) {
-                        BNX2X_ERR("IRQ request failed, aborting\n");
-                        goto load_error;
+                        BNX2X_ERR("IRQ request failed  rc %d, aborting\n", rc);
+                        goto load_error1;
                 }
         }
 
-        for_each_queue(bp, i)
-                netif_napi_add(bp->dev, &bnx2x_fp(bp, i, napi),
-                               bnx2x_poll, 128);
+        /* Send LOAD_REQUEST command to MCP
+           Returns the type of LOAD command:
+           if it is the first port to be initialized
+           common blocks should be initialized, otherwise - not
+        */
+        if (!BP_NOMCP(bp)) {
+                load_code = bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_REQ);
+                if (!load_code) {
+                        BNX2X_ERR("MCP response failure, aborting\n");
+                        rc = -EBUSY;
+                        goto load_error2;
+                }
+                if (load_code == FW_MSG_CODE_DRV_LOAD_REFUSED) {
+                        rc = -EBUSY; /* other port in diagnostic mode */
+                        goto load_error2;
+                }
+
+        } else {
+                int port = BP_PORT(bp);
+
+                DP(NETIF_MSG_IFUP, "NO MCP load counts before us %d, %d, %d\n",
+                   load_count[0], load_count[1], load_count[2]);
+                load_count[0]++;
+                load_count[1 + port]++;
+                DP(NETIF_MSG_IFUP, "NO MCP new load counts       %d, %d, %d\n",
+                   load_count[0], load_count[1], load_count[2]);
+                if (load_count[0] == 1)
+                        load_code = FW_MSG_CODE_DRV_LOAD_COMMON;
+                else if (load_count[1 + port] == 1)
+                        load_code = FW_MSG_CODE_DRV_LOAD_PORT;
+                else
+                        load_code = FW_MSG_CODE_DRV_LOAD_FUNCTION;
+        }
+
+        if ((load_code == FW_MSG_CODE_DRV_LOAD_COMMON) ||
+            (load_code == FW_MSG_CODE_DRV_LOAD_PORT))
+                bp->port.pmf = 1;
+        else
+                bp->port.pmf = 0;
+        DP(NETIF_MSG_LINK, "pmf %d\n", bp->port.pmf);
 
         /* Initialize HW */
         rc = bnx2x_init_hw(bp, load_code);
         if (rc) {
                 BNX2X_ERR("HW init failed, aborting\n");
-                goto load_int_disable;
+                goto load_error2;
         }
 
         /* Setup NIC internals and enable interrupts */
@@ -6436,7 +6471,7 @@ static int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
                 if (!load_code) {
                         BNX2X_ERR("MCP response failure, aborting\n");
                         rc = -EBUSY;
-                        goto load_rings_free;
+                        goto load_error3;
                 }
         }
 
@@ -6445,7 +6480,7 @@ static int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
         rc = bnx2x_setup_leading(bp);
         if (rc) {
                 BNX2X_ERR("Setup leading failed!\n");
-                goto load_netif_stop;
+                goto load_error3;
         }
 
         if (CHIP_IS_E1H(bp))
@@ -6458,7 +6493,7 @@ static int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
                 for_each_nondefault_queue(bp, i) {
                         rc = bnx2x_setup_multi(bp, i);
                         if (rc)
-                                goto load_netif_stop;
+                                goto load_error3;
                 }
 
         if (CHIP_IS_E1(bp))
@@ -6474,18 +6509,18 @@ static int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
         case LOAD_NORMAL:
                 /* Tx queue should be only reenabled */
                 netif_wake_queue(bp->dev);
+                /* Initialize the receive filter. */
                 bnx2x_set_rx_mode(bp->dev);
                 break;
 
         case LOAD_OPEN:
                 netif_start_queue(bp->dev);
+                /* Initialize the receive filter. */
                 bnx2x_set_rx_mode(bp->dev);
-                if (bp->flags & USING_MSIX_FLAG)
-                        printk(KERN_INFO PFX "%s: using MSI-X\n",
-                               bp->dev->name);
                 break;
 
         case LOAD_DIAG:
+                /* Initialize the receive filter. */
                 bnx2x_set_rx_mode(bp->dev);
                 bp->state = BNX2X_STATE_DIAG;
                 break;
@@ -6503,20 +6538,25 @@ static int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
 
         return 0;
 
-load_netif_stop:
-        bnx2x_napi_disable(bp);
-load_rings_free:
+load_error3:
+        bnx2x_int_disable_sync(bp, 1);
+        if (!BP_NOMCP(bp)) {
+                bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_REQ_WOL_MCP);
+                bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_DONE);
+        }
+        bp->port.pmf = 0;
         /* Free SKBs, SGEs, TPA pool and driver internals */
         bnx2x_free_skbs(bp);
         for_each_queue(bp, i)
                 bnx2x_free_rx_sge_range(bp, bp->fp + i, NUM_RX_SGE);
-load_int_disable:
-        bnx2x_int_disable_sync(bp, 1);
+load_error2:
         /* Release IRQs */
         bnx2x_free_irq(bp);
-load_error:
+load_error1:
+        bnx2x_napi_disable(bp);
+        for_each_queue(bp, i)
+                netif_napi_del(&bnx2x_fp(bp, i, napi));
         bnx2x_free_mem(bp);
-        bp->port.pmf = 0;
 
         /* TBD we really need to reset the chip
            if we want to recover from this */
@@ -6589,6 +6629,7 @@ static int bnx2x_stop_leading(struct bnx2x *bp)
                 }
                 cnt--;
                 msleep(1);
+                rmb(); /* Refresh the dsb_sp_prod */
         }
         bp->state = BNX2X_STATE_CLOSING_WAIT4_UNLOAD;
         bp->fp[0].state = BNX2X_FP_STATE_CLOSED;
@@ -6640,14 +6681,6 @@ static void bnx2x_reset_port(struct bnx2x *bp)
         /* TODO: Close Doorbell port? */
 }
 
-static void bnx2x_reset_common(struct bnx2x *bp)
-{
-        /* reset_common */
-        REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_CLEAR,
-               0xd3ffff7f);
-        REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR, 0x1403);
-}
-
 static void bnx2x_reset_chip(struct bnx2x *bp, u32 reset_code)
 {
         DP(BNX2X_MSG_MCP, "function %d  reset_code %x\n",
@@ -6688,8 +6721,7 @@ static int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode)
         bnx2x_set_storm_rx_mode(bp);
 
         bnx2x_netif_stop(bp, 1);
-        if (!netif_running(bp->dev))
-                bnx2x_napi_disable(bp);
+
         del_timer_sync(&bp->timer);
         SHMEM_WR(bp, func_mb[BP_FUNC(bp)].drv_pulse_mb,
                  (DRV_PULSE_ALWAYS_ALIVE | bp->fw_drv_pulse_wr_seq));
@@ -6704,7 +6736,7 @@ static int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode)
 
                 cnt = 1000;
                 smp_rmb();
-                while (bnx2x_has_tx_work(fp)) {
+                while (bnx2x_has_tx_work_unload(fp)) {
 
                         bnx2x_tx_int(fp, 1000);
                         if (!cnt) {
@@ -6833,6 +6865,8 @@ unload_error:
         bnx2x_free_skbs(bp);
         for_each_queue(bp, i)
                 bnx2x_free_rx_sge_range(bp, bp->fp + i, NUM_RX_SGE);
+        for_each_queue(bp, i)
+                netif_napi_del(&bnx2x_fp(bp, i, napi));
         bnx2x_free_mem(bp);
 
         bp->state = BNX2X_STATE_CLOSED;
@@ -8723,18 +8757,17 @@ static int bnx2x_run_loopback(struct bnx2x *bp, int loopback_mode, u8 link_up)
 
         if (loopback_mode == BNX2X_MAC_LOOPBACK) {
                 bp->link_params.loopback_mode = LOOPBACK_BMAC;
-                bnx2x_acquire_phy_lock(bp);
                 bnx2x_phy_init(&bp->link_params, &bp->link_vars);
-                bnx2x_release_phy_lock(bp);
 
         } else if (loopback_mode == BNX2X_PHY_LOOPBACK) {
+                u16 cnt = 1000;
                 bp->link_params.loopback_mode = LOOPBACK_XGXS_10;
-                bnx2x_acquire_phy_lock(bp);
                 bnx2x_phy_init(&bp->link_params, &bp->link_vars);
-                bnx2x_release_phy_lock(bp);
                 /* wait until link state is restored */
-                bnx2x_wait_for_link(bp, link_up);
-
+                if (link_up)
+                        while (cnt-- && bnx2x_test_link(&bp->link_params,
+                                                        &bp->link_vars))
+                                msleep(10);
         } else
                 return -EINVAL;
 
@@ -8840,6 +8873,7 @@ static int bnx2x_test_loopback(struct bnx2x *bp, u8 link_up)
                 return BNX2X_LOOPBACK_FAILED;
 
         bnx2x_netif_stop(bp, 1);
+        bnx2x_acquire_phy_lock(bp);
 
         if (bnx2x_run_loopback(bp, BNX2X_MAC_LOOPBACK, link_up)) {
                 DP(NETIF_MSG_PROBE, "MAC loopback failed\n");
@@ -8851,6 +8885,7 @@ static int bnx2x_test_loopback(struct bnx2x *bp, u8 link_up)
                 rc |= BNX2X_PHY_LOOPBACK_FAILED;
         }
 
+        bnx2x_release_phy_lock(bp);
         bnx2x_netif_start(bp);
 
         return rc;
@@ -9805,6 +9840,8 @@ static int bnx2x_open(struct net_device *dev)
 {
         struct bnx2x *bp = netdev_priv(dev);
 
+        netif_carrier_off(dev);
+
         bnx2x_set_power_state(bp, PCI_D0);
 
         return bnx2x_nic_load(bp, LOAD_OPEN);
@@ -10310,8 +10347,6 @@ static int __devinit bnx2x_init_one(struct pci_dev *pdev,
                 goto init_one_exit;
         }
 
-        netif_carrier_off(dev);
-
         bp->common.name = board_info[ent->driver_data].name;
         printk(KERN_INFO "%s: %s (%c%d) PCI-E x%d %s found at mem %lx,"
                " IRQ %d, ", dev->name, bp->common.name,
@@ -10459,6 +10494,8 @@ static int bnx2x_eeh_nic_unload(struct bnx2x *bp)
         bnx2x_free_skbs(bp);
         for_each_queue(bp, i)
                 bnx2x_free_rx_sge_range(bp, bp->fp + i, NUM_RX_SGE);
+        for_each_queue(bp, i)
+                netif_napi_del(&bnx2x_fp(bp, i, napi));
         bnx2x_free_mem(bp);
 
         bp->state = BNX2X_STATE_CLOSED;
diff --git a/drivers/net/e1000e/82571.c b/drivers/net/e1000e/82571.c
index cf43ee743b3c..0890162953e9 100644
--- a/drivers/net/e1000e/82571.c
+++ b/drivers/net/e1000e/82571.c
@@ -981,11 +981,15 @@ static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw)
                 ew32(PBA_ECC, reg);
         }
 
-        /* PCI-Ex Control Register */
+        /* PCI-Ex Control Registers */
         if (hw->mac.type == e1000_82574) {
                 reg = er32(GCR);
                 reg |= (1 << 22);
                 ew32(GCR, reg);
+
+                reg = er32(GCR2);
+                reg |= 1;
+                ew32(GCR2, reg);
         }
 
         return;
diff --git a/drivers/net/e1000e/hw.h b/drivers/net/e1000e/hw.h
index f25e961c6b3b..2d4ce0492df0 100644
--- a/drivers/net/e1000e/hw.h
+++ b/drivers/net/e1000e/hw.h
@@ -206,6 +206,7 @@ enum e1e_registers {
         E1000_MANC2H    = 0x05860, /* Management Control To Host - RW */
         E1000_SW_FW_SYNC = 0x05B5C, /* Software-Firmware Synchronization - RW */
         E1000_GCR       = 0x05B00, /* PCI-Ex Control */
+        E1000_GCR2      = 0x05B64, /* PCI-Ex Control #2 */
         E1000_FACTPS    = 0x05B30, /* Function Active and Power State to MNG */
         E1000_SWSM      = 0x05B50, /* SW Semaphore */
         E1000_FWSM      = 0x05B54, /* FW Semaphore */
diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c
index 2e76699f8104..f5e6068f9b07 100644
--- a/drivers/net/gianfar.c
+++ b/drivers/net/gianfar.c
@@ -1423,15 +1423,11 @@ static void gfar_vlan_rx_register(struct net_device *dev,
 {
         struct gfar_private *priv = netdev_priv(dev);
         unsigned long flags;
-        struct vlan_group *old_grp;
         u32 tempval;
 
         spin_lock_irqsave(&priv->rxlock, flags);
 
-        old_grp = priv->vlgrp;
-
-        if (old_grp == grp)
-                return;
+        priv->vlgrp = grp;
 
         if (grp) {
                 /* Enable VLAN tag insertion */
diff --git a/drivers/net/netxen/netxen_nic.h b/drivers/net/netxen/netxen_nic.h
index c11c568fd7db..a75a31005fd3 100644
--- a/drivers/net/netxen/netxen_nic.h
+++ b/drivers/net/netxen/netxen_nic.h
@@ -146,7 +146,7 @@
 
 #define MAX_RX_BUFFER_LENGTH            1760
 #define MAX_RX_JUMBO_BUFFER_LENGTH      8062
-#define MAX_RX_LRO_BUFFER_LENGTH        ((48*1024)-512)
+#define MAX_RX_LRO_BUFFER_LENGTH        (8062)
 #define RX_DMA_MAP_LEN                  (MAX_RX_BUFFER_LENGTH - 2)
 #define RX_JUMBO_DMA_MAP_LEN    \
         (MAX_RX_JUMBO_BUFFER_LENGTH - 2)
@@ -207,11 +207,11 @@
 
 #define MAX_CMD_DESCRIPTORS             4096
 #define MAX_RCV_DESCRIPTORS             16384
-#define MAX_CMD_DESCRIPTORS_HOST        (MAX_CMD_DESCRIPTORS / 4)
-#define MAX_RCV_DESCRIPTORS_1G          (MAX_RCV_DESCRIPTORS / 4)
-#define MAX_RCV_DESCRIPTORS_10G         8192
-#define MAX_JUMBO_RCV_DESCRIPTORS       1024
-#define MAX_LRO_RCV_DESCRIPTORS         64
+#define MAX_CMD_DESCRIPTORS_HOST        1024
+#define MAX_RCV_DESCRIPTORS_1G          2048
+#define MAX_RCV_DESCRIPTORS_10G         4096
+#define MAX_JUMBO_RCV_DESCRIPTORS       512
+#define MAX_LRO_RCV_DESCRIPTORS         8
 #define MAX_RCVSTATUS_DESCRIPTORS       MAX_RCV_DESCRIPTORS
 #define MAX_JUMBO_RCV_DESC      MAX_JUMBO_RCV_DESCRIPTORS
 #define MAX_RCV_DESC            MAX_RCV_DESCRIPTORS
diff --git a/drivers/net/netxen/netxen_nic_ethtool.c b/drivers/net/netxen/netxen_nic_ethtool.c
index c0bd40fcf708..0894a7be0225 100644
--- a/drivers/net/netxen/netxen_nic_ethtool.c
+++ b/drivers/net/netxen/netxen_nic_ethtool.c
@@ -561,7 +561,10 @@ netxen_nic_get_ringparam(struct net_device *dev, struct ethtool_ringparam *ring)
         }
         ring->tx_pending = adapter->max_tx_desc_count;
 
-        ring->rx_max_pending = MAX_RCV_DESCRIPTORS;
+        if (adapter->ahw.board_type == NETXEN_NIC_GBE)
+                ring->rx_max_pending = MAX_RCV_DESCRIPTORS_1G;
+        else
+                ring->rx_max_pending = MAX_RCV_DESCRIPTORS_10G;
         ring->tx_max_pending = MAX_CMD_DESCRIPTORS_HOST;
         ring->rx_jumbo_max_pending = MAX_JUMBO_RCV_DESCRIPTORS;
         ring->rx_mini_max_pending = 0;
diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c
index 1139e637f5da..cc06cc5429fe 100644
--- a/drivers/net/netxen/netxen_nic_main.c
+++ b/drivers/net/netxen/netxen_nic_main.c
@@ -735,17 +735,18 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
         SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
 
-        /* ScatterGather support */
-        netdev->features = NETIF_F_SG;
-        netdev->features |= NETIF_F_IP_CSUM;
-        netdev->features |= NETIF_F_TSO;
+        netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
+        netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
+
         if (NX_IS_REVISION_P3(revision_id)) {
-                netdev->features |= NETIF_F_IPV6_CSUM;
-                netdev->features |= NETIF_F_TSO6;
+                netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
+                netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
         }
 
-        if (adapter->pci_using_dac)
+        if (adapter->pci_using_dac) {
                 netdev->features |= NETIF_F_HIGHDMA;
+                netdev->vlan_features |= NETIF_F_HIGHDMA;
+        }
 
         /*
          * Set the CRB window to invalid. If any register in window 0 is
@@ -1166,6 +1167,14 @@ static bool netxen_tso_check(struct net_device *netdev,
 {
         bool tso = false;
         u8 opcode = TX_ETHER_PKT;
+        __be16 protocol = skb->protocol;
+        u16 flags = 0;
+
+        if (protocol == __constant_htons(ETH_P_8021Q)) {
+                struct vlan_ethhdr *vh = (struct vlan_ethhdr *)skb->data;
+                protocol = vh->h_vlan_encapsulated_proto;
+                flags = FLAGS_VLAN_TAGGED;
+        }
 
         if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
                         skb_shinfo(skb)->gso_size > 0) {
@@ -1174,21 +1183,21 @@ static bool netxen_tso_check(struct net_device *netdev,
                 desc->total_hdr_length =
                         skb_transport_offset(skb) + tcp_hdrlen(skb);
 
-                opcode = (skb->protocol == htons(ETH_P_IPV6)) ?
+                opcode = (protocol == __constant_htons(ETH_P_IPV6)) ?
                                 TX_TCP_LSO6 : TX_TCP_LSO;
                 tso = true;
 
         } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
                 u8 l4proto;
 
-                if (skb->protocol == htons(ETH_P_IP)) {
+                if (protocol == __constant_htons(ETH_P_IP)) {
                         l4proto = ip_hdr(skb)->protocol;
 
                         if (l4proto == IPPROTO_TCP)
                                 opcode = TX_TCP_PKT;
                         else if(l4proto == IPPROTO_UDP)
                                 opcode = TX_UDP_PKT;
-                } else if (skb->protocol == htons(ETH_P_IPV6)) {
+                } else if (protocol == __constant_htons(ETH_P_IPV6)) {
                         l4proto = ipv6_hdr(skb)->nexthdr;
 
                         if (l4proto == IPPROTO_TCP)
@@ -1199,7 +1208,7 @@ static bool netxen_tso_check(struct net_device *netdev,
         }
         desc->tcp_hdr_offset = skb_transport_offset(skb);
         desc->ip_hdr_offset = skb_network_offset(skb);
-        netxen_set_tx_flags_opcode(desc, 0, opcode);
+        netxen_set_tx_flags_opcode(desc, flags, opcode);
         return tso;
 }
 
diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index 11adf6ed4628..811a637695ca 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -296,9 +296,8 @@ static int mdio_bus_suspend(struct device * dev, pm_message_t state)
         struct phy_driver *phydrv = to_phy_driver(drv);
         struct phy_device *phydev = to_phy_device(dev);
 
-        if ((!device_may_wakeup(phydev->dev.parent)) &&
-                (phydrv && phydrv->suspend))
-                        ret = phydrv->suspend(phydev);
+        if (drv && phydrv->suspend && !device_may_wakeup(phydev->dev.parent))
+                ret = phydrv->suspend(phydev);
 
         return ret;
 }
@@ -310,8 +309,7 @@ static int mdio_bus_resume(struct device * dev)
         struct phy_driver *phydrv = to_phy_driver(drv);
         struct phy_device *phydev = to_phy_device(dev);
 
-        if ((!device_may_wakeup(phydev->dev.parent)) &&
-                (phydrv && phydrv->resume))
+        if (drv && phydrv->resume && !device_may_wakeup(phydev->dev.parent))
                 ret = phydrv->resume(phydev);
 
         return ret;
diff --git a/drivers/net/phy/smsc.c b/drivers/net/phy/smsc.c
index c05d38d46350..1387187543e4 100644
--- a/drivers/net/phy/smsc.c
+++ b/drivers/net/phy/smsc.c
@@ -81,6 +81,9 @@ static struct phy_driver lan83c185_driver = {
         .ack_interrupt  = smsc_phy_ack_interrupt,
         .config_intr    = smsc_phy_config_intr,
 
+        .suspend        = genphy_suspend,
+        .resume         = genphy_resume,
+
         .driver         = { .owner = THIS_MODULE, }
 };
 
@@ -102,6 +105,9 @@ static struct phy_driver lan8187_driver = {
         .ack_interrupt  = smsc_phy_ack_interrupt,
         .config_intr    = smsc_phy_config_intr,
 
+        .suspend        = genphy_suspend,
+        .resume         = genphy_resume,
+
         .driver         = { .owner = THIS_MODULE, }
 };
 
@@ -123,6 +129,9 @@ static struct phy_driver lan8700_driver = {
         .ack_interrupt  = smsc_phy_ack_interrupt,
         .config_intr    = smsc_phy_config_intr,
 
+        .suspend        = genphy_suspend,
+        .resume         = genphy_resume,
+
         .driver         = { .owner = THIS_MODULE, }
 };
 
@@ -144,6 +153,9 @@ static struct phy_driver lan911x_int_driver = {
         .ack_interrupt  = smsc_phy_ack_interrupt,
         .config_intr    = smsc_phy_config_intr,
 
+        .suspend        = genphy_suspend,
+        .resume         = genphy_resume,
+
         .driver         = { .owner = THIS_MODULE, }
 };
 
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 9b33d6ebf542..3b6225a2c7d2 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -24,6 +24,7 @@
 #include <linux/virtio.h>
 #include <linux/virtio_net.h>
 #include <linux/scatterlist.h>
+#include <linux/if_vlan.h>
 
 static int napi_weight = 128;
 module_param(napi_weight, int, 0444);
@@ -33,7 +34,7 @@ module_param(csum, bool, 0444);
 module_param(gso, bool, 0444);
 
 /* FIXME: MTU in config. */
-#define MAX_PACKET_LEN (ETH_HLEN+ETH_DATA_LEN)
+#define MAX_PACKET_LEN (ETH_HLEN + VLAN_HLEN + ETH_DATA_LEN)
 #define GOOD_COPY_LEN   128
 
 struct virtnet_info
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
index 9b60a0c5de5f..21c841847d88 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
@@ -638,12 +638,16 @@ static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta,
         s8 scale_action = 0;
         unsigned long flags;
         struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
-        u16 fc, rate_mask;
+        u16 fc;
+        u16 rate_mask = 0;
         struct iwl3945_priv *priv = (struct iwl3945_priv *)priv_r;
         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 
         IWL_DEBUG_RATE("enter\n");
 
+        if (sta)
+                rate_mask = sta->supp_rates[sband->band];
+
         /* Send management frames and broadcast/multicast data using lowest
          * rate. */
         fc = le16_to_cpu(hdr->frame_control);
@@ -651,11 +655,15 @@ static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta,
             is_multicast_ether_addr(hdr->addr1) ||
             !sta || !priv_sta) {
                 IWL_DEBUG_RATE("leave: No STA priv data to update!\n");
-                info->control.rates[0].idx = rate_lowest_index(sband, sta);
+                if (!rate_mask)
+                        info->control.rates[0].idx =
+                                        rate_lowest_index(sband, NULL);
+                else
+                        info->control.rates[0].idx =
+                                        rate_lowest_index(sband, sta);
                 return;
         }
 
-        rate_mask = sta->supp_rates[sband->band];
         index = min(rs_sta->last_txrate_idx & 0xffff, IWL_RATE_COUNT - 1);
 
         if (sband->band == IEEE80211_BAND_5GHZ)
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
index f3f17929ca0b..27f50471aed8 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
@@ -944,7 +944,8 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband,
         }
 
         /* See if there's a better rate or modulation mode to try. */
-        rs_rate_scale_perform(priv, hdr, sta, lq_sta);
+        if (sta && sta->supp_rates[sband->band])
+                rs_rate_scale_perform(priv, hdr, sta, lq_sta);
 out:
         return;
 }
@@ -2101,14 +2102,23 @@ static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta, void *priv_sta,
         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
         struct iwl_lq_sta *lq_sta = priv_sta;
         int rate_idx;
+        u64 mask_bit = 0;
 
         IWL_DEBUG_RATE_LIMIT("rate scale calculate new rate for skb\n");
 
+        if (sta)
+                mask_bit = sta->supp_rates[sband->band];
+
         /* Send management frames and broadcast/multicast data using lowest
          * rate. */
         if (!ieee80211_is_data(hdr->frame_control) ||
             is_multicast_ether_addr(hdr->addr1) || !sta || !lq_sta) {
-                info->control.rates[0].idx = rate_lowest_index(sband, sta);
+                if (!mask_bit)
+                        info->control.rates[0].idx =
+                                        rate_lowest_index(sband, NULL);
+                else
+                        info->control.rates[0].idx =
+                                        rate_lowest_index(sband, sta);
                 return;
         }
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 5da6b35cd26d..0dc8eed16404 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -2482,7 +2482,7 @@ static int iwl_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
                 dev_kfree_skb_any(skb);
 
         IWL_DEBUG_MACDUMP("leave\n");
-        return 0;
+        return NETDEV_TX_OK;
 }
 
 static int iwl_mac_add_interface(struct ieee80211_hw *hw,
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index 15f5655c636e..95d01984c80e 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -6538,7 +6538,7 @@ static int iwl3945_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
                 dev_kfree_skb_any(skb);
 
         IWL_DEBUG_MAC80211("leave\n");
-        return 0;
+        return NETDEV_TX_OK;
 }
 
 static int iwl3945_mac_add_interface(struct ieee80211_hw *hw,
diff --git a/drivers/net/wireless/orinoco/orinoco.c b/drivers/net/wireless/orinoco/orinoco.c
index c3bb85e0251e..45a04faa7818 100644
--- a/drivers/net/wireless/orinoco/orinoco.c
+++ b/drivers/net/wireless/orinoco/orinoco.c
@@ -1673,7 +1673,7 @@ static void print_linkstatus(struct net_device *dev, u16 status)
                 s = "UNKNOWN";
         }
         
-        printk(KERN_INFO "%s: New link status: %s (%04x)\n",
+        printk(KERN_DEBUG "%s: New link status: %s (%04x)\n",
                dev->name, s, status);
 }
 
@@ -5068,33 +5068,30 @@ static int orinoco_ioctl_set_genie(struct net_device *dev,
         struct orinoco_private *priv = netdev_priv(dev);
         u8 *buf;
         unsigned long flags;
-        int err = 0;
 
         /* cut off at IEEE80211_MAX_DATA_LEN */
         if ((wrqu->data.length > IEEE80211_MAX_DATA_LEN) ||
             (wrqu->data.length && (extra == NULL)))
                 return -EINVAL;
 
-        if (orinoco_lock(priv, &flags) != 0)
-                return -EBUSY;
-
         if (wrqu->data.length) {
                 buf = kmalloc(wrqu->data.length, GFP_KERNEL);
-                if (buf == NULL) {
-                        err = -ENOMEM;
-                        goto out;
-                }
+                if (buf == NULL)
+                        return -ENOMEM;
 
                 memcpy(buf, extra, wrqu->data.length);
-                kfree(priv->wpa_ie);
-                priv->wpa_ie = buf;
-                priv->wpa_ie_len = wrqu->data.length;
-        } else {
-                kfree(priv->wpa_ie);
-                priv->wpa_ie = NULL;
-                priv->wpa_ie_len = 0;
+        } else
+                buf = NULL;
+
+        if (orinoco_lock(priv, &flags) != 0) {
+                kfree(buf);
+                return -EBUSY;
         }
 
+        kfree(priv->wpa_ie);
+        priv->wpa_ie = buf;
+        priv->wpa_ie_len = wrqu->data.length;
+
         if (priv->wpa_ie) {
                 /* Looks like wl_lkm wants to check the auth alg, and
                  * somehow pass it to the firmware.
@@ -5103,9 +5100,8 @@ static int orinoco_ioctl_set_genie(struct net_device *dev,
                  */
         }
 
-out:
         orinoco_unlock(priv, &flags);
-        return err;
+        return 0;
 }
 
 static int orinoco_ioctl_get_genie(struct net_device *dev,
diff --git a/drivers/net/wireless/p54/p54common.c b/drivers/net/wireless/p54/p54common.c
index 12d0717c3992..34561e6e816b 100644
--- a/drivers/net/wireless/p54/p54common.c
+++ b/drivers/net/wireless/p54/p54common.c
@@ -451,8 +451,8 @@ static int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len)
                         }
                         if (err)
                                 goto err;
-
-                }
+                        }
+                        break;
                 case PDR_PRISM_ZIF_TX_IQ_CALIBRATION:
                         priv->iq_autocal = kmalloc(data_len, GFP_KERNEL);
                         if (!priv->iq_autocal) {
@@ -745,7 +745,7 @@ static void p54_rx_frame_sent(struct ieee80211_hw *dev, struct sk_buff *skb)
                 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(entry);
                 struct p54_hdr *entry_hdr;
                 struct p54_tx_data *entry_data;
-                int pad = 0;
+                unsigned int pad = 0, frame_len;
 
                 range = (void *)info->rate_driver_data;
                 if (range->start_addr != addr) {
@@ -768,6 +768,7 @@ static void p54_rx_frame_sent(struct ieee80211_hw *dev, struct sk_buff *skb)
                 __skb_unlink(entry, &priv->tx_queue);
                 spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
 
+                frame_len = entry->len;
                 entry_hdr = (struct p54_hdr *) entry->data;
                 entry_data = (struct p54_tx_data *) entry_hdr->data;
                 priv->tx_stats[entry_data->hw_queue].len--;
@@ -814,15 +815,28 @@ static void p54_rx_frame_sent(struct ieee80211_hw *dev, struct sk_buff *skb)
                 info->status.ack_signal = p54_rssi_to_dbm(dev,
                                 (int)payload->ack_rssi);
 
-                if (entry_data->key_type == P54_CRYPTO_TKIPMICHAEL) {
+                /* Undo all changes to the frame. */
+                switch (entry_data->key_type) {
+                case P54_CRYPTO_TKIPMICHAEL: {
                         u8 *iv = (u8 *)(entry_data->align + pad +
-                                        entry_data->crypt_offset);
+                                        entry_data->crypt_offset);
 
                         /* Restore the original TKIP IV. */
                         iv[2] = iv[0];
                         iv[0] = iv[1];
                         iv[1] = (iv[0] | 0x20) & 0x7f;  /* WEPSeed - 8.3.2.2 */
+
+                        frame_len -= 12; /* remove TKIP_MMIC + TKIP_ICV */
+                        break;
+                        }
+                case P54_CRYPTO_AESCCMP:
+                        frame_len -= 8; /* remove CCMP_MIC */
+                        break;
+                case P54_CRYPTO_WEP:
+                        frame_len -= 4; /* remove WEP_ICV */
+                        break;
                 }
+                skb_trim(entry, frame_len);
                 skb_pull(entry, sizeof(*hdr) + pad + sizeof(*entry_data));
                 ieee80211_tx_status_irqsafe(dev, entry);
                 goto out;
diff --git a/drivers/net/wireless/p54/p54usb.c b/drivers/net/wireless/p54/p54usb.c
index 6a6a72f6f82c..5de2ebfb28c7 100644
--- a/drivers/net/wireless/p54/p54usb.c
+++ b/drivers/net/wireless/p54/p54usb.c
@@ -144,11 +144,8 @@ static void p54u_tx_cb(struct urb *urb)
         struct sk_buff *skb = urb->context;
         struct ieee80211_hw *dev = (struct ieee80211_hw *)
                 usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
-        struct p54u_priv *priv = dev->priv;
 
-        skb_pull(skb, priv->common.tx_hdr_len);
-        if (FREE_AFTER_TX(skb))
-                p54_free_skb(dev, skb);
+        p54_free_skb(dev, skb);
 }
 
 static void p54u_tx_dummy_cb(struct urb *urb) { }
@@ -230,7 +227,10 @@ static void p54u_tx_3887(struct ieee80211_hw *dev, struct sk_buff *skb)
                           p54u_tx_dummy_cb, dev);
         usb_fill_bulk_urb(data_urb, priv->udev,
                           usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA),
-                          skb->data, skb->len, p54u_tx_cb, skb);
+                          skb->data, skb->len, FREE_AFTER_TX(skb) ?
+                          p54u_tx_cb : p54u_tx_dummy_cb, skb);
+        addr_urb->transfer_flags |= URB_ZERO_PACKET;
+        data_urb->transfer_flags |= URB_ZERO_PACKET;
 
         usb_anchor_urb(addr_urb, &priv->submitted);
         err = usb_submit_urb(addr_urb, GFP_ATOMIC);
@@ -239,7 +239,7 @@ static void p54u_tx_3887(struct ieee80211_hw *dev, struct sk_buff *skb)
                 goto out;
         }
 
-        usb_anchor_urb(addr_urb, &priv->submitted);
+        usb_anchor_urb(data_urb, &priv->submitted);
         err = usb_submit_urb(data_urb, GFP_ATOMIC);
         if (err)
                 usb_unanchor_urb(data_urb);
@@ -269,28 +269,24 @@ static void p54u_tx_lm87(struct ieee80211_hw *dev, struct sk_buff *skb)
 {
         struct p54u_priv *priv = dev->priv;
         struct urb *data_urb;
-        struct lm87_tx_hdr *hdr;
-        __le32 checksum;
-        __le32 addr = ((struct p54_hdr *)skb->data)->req_id;
+        struct lm87_tx_hdr *hdr = (void *)skb->data - sizeof(*hdr);
 
         data_urb = usb_alloc_urb(0, GFP_ATOMIC);
         if (!data_urb)
                 return;
 
-        checksum = p54u_lm87_chksum((__le32 *)skb->data, skb->len);
-        hdr = (struct lm87_tx_hdr *)skb_push(skb, sizeof(*hdr));
-        hdr->chksum = checksum;
-        hdr->device_addr = addr;
+        hdr->chksum = p54u_lm87_chksum((__le32 *)skb->data, skb->len);
+        hdr->device_addr = ((struct p54_hdr *)skb->data)->req_id;
 
         usb_fill_bulk_urb(data_urb, priv->udev,
                           usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA),
-                          skb->data, skb->len, p54u_tx_cb, skb);
+                          hdr, skb->len + sizeof(*hdr),  FREE_AFTER_TX(skb) ?
+                          p54u_tx_cb : p54u_tx_dummy_cb, skb);
         data_urb->transfer_flags |= URB_ZERO_PACKET;
 
         usb_anchor_urb(data_urb, &priv->submitted);
         if (usb_submit_urb(data_urb, GFP_ATOMIC)) {
                 usb_unanchor_urb(data_urb);
-                skb_pull(skb, sizeof(*hdr));
                 p54_free_skb(dev, skb);
         }
         usb_free_urb(data_urb);
@@ -300,11 +296,9 @@ static void p54u_tx_net2280(struct ieee80211_hw *dev, struct sk_buff *skb)
 {
         struct p54u_priv *priv = dev->priv;
         struct urb *int_urb, *data_urb;
-        struct net2280_tx_hdr *hdr;
+        struct net2280_tx_hdr *hdr = (void *)skb->data - sizeof(*hdr);
         struct net2280_reg_write *reg;
         int err = 0;
-        __le32 addr = ((struct p54_hdr *) skb->data)->req_id;
-        __le16 len = cpu_to_le16(skb->len);
 
         reg = kmalloc(sizeof(*reg), GFP_ATOMIC);
         if (!reg)
@@ -327,10 +321,9 @@ static void p54u_tx_net2280(struct ieee80211_hw *dev, struct sk_buff *skb)
         reg->addr = cpu_to_le32(P54U_DEV_BASE);
         reg->val = cpu_to_le32(ISL38XX_DEV_INT_DATA);
 
-        hdr = (void *)skb_push(skb, sizeof(*hdr));
         memset(hdr, 0, sizeof(*hdr));
-        hdr->len = len;
-        hdr->device_addr = addr;
+        hdr->len = cpu_to_le16(skb->len);
+        hdr->device_addr = ((struct p54_hdr *) skb->data)->req_id;
 
         usb_fill_bulk_urb(int_urb, priv->udev,
                 usb_sndbulkpipe(priv->udev, P54U_PIPE_DEV), reg, sizeof(*reg),
@@ -341,11 +334,13 @@ static void p54u_tx_net2280(struct ieee80211_hw *dev, struct sk_buff *skb)
          * free what's inside the transfer_buffer after the callback routine
          * has completed.
          */
-        int_urb->transfer_flags |= URB_FREE_BUFFER;
+        int_urb->transfer_flags |= URB_FREE_BUFFER | URB_ZERO_PACKET;
 
         usb_fill_bulk_urb(data_urb, priv->udev,
                           usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA),
-                          skb->data, skb->len, p54u_tx_cb, skb);
+                          hdr, skb->len + sizeof(*hdr), FREE_AFTER_TX(skb) ?
+                          p54u_tx_cb : p54u_tx_dummy_cb, skb);
+        data_urb->transfer_flags |= URB_ZERO_PACKET;
 
         usb_anchor_urb(int_urb, &priv->submitted);
         err = usb_submit_urb(int_urb, GFP_ATOMIC);
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index 746a8f36b931..0709decec9c2 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -154,6 +154,7 @@ static void rt2x00queue_create_tx_descriptor(struct queue_entry *entry,
         struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
         struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb);
         struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)entry->skb->data;
+        struct ieee80211_tx_rate *txrate = &tx_info->control.rates[0];
         struct ieee80211_rate *rate =
             ieee80211_get_tx_rate(rt2x00dev->hw, tx_info);
         const struct rt2x00_rate *hwrate;
@@ -313,7 +314,7 @@ static void rt2x00queue_create_tx_descriptor(struct queue_entry *entry,
                  * When preamble is enabled we should set the
                  * preamble bit for the signal.
                  */
-                if (rate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
+                if (txrate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
                         txdesc->signal |= 0x08;
         }
 }
diff --git a/drivers/net/wireless/rtl818x/rtl8187_dev.c b/drivers/net/wireless/rtl818x/rtl8187_dev.c
index 6ad6bac37706..22bc07ef2f37 100644
--- a/drivers/net/wireless/rtl818x/rtl8187_dev.c
+++ b/drivers/net/wireless/rtl818x/rtl8187_dev.c
@@ -273,6 +273,7 @@ static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
 
         usb_fill_bulk_urb(urb, priv->udev, usb_sndbulkpipe(priv->udev, ep),
                           buf, skb->len, rtl8187_tx_cb, skb);
+        urb->transfer_flags |= URB_ZERO_PACKET;
         usb_anchor_urb(urb, &priv->anchored);
         rc = usb_submit_urb(urb, GFP_ATOMIC);
         if (rc < 0) {
diff --git a/drivers/net/wireless/zd1211rw/zd_usb.c b/drivers/net/wireless/zd1211rw/zd_usb.c
index b5db57d2fcf5..17527f765b39 100644
--- a/drivers/net/wireless/zd1211rw/zd_usb.c
+++ b/drivers/net/wireless/zd1211rw/zd_usb.c
@@ -84,6 +84,7 @@ static struct usb_device_id usb_ids[] = {
         { USB_DEVICE(0x0586, 0x340a), .driver_info = DEVICE_ZD1211B },
         { USB_DEVICE(0x0471, 0x1237), .driver_info = DEVICE_ZD1211B },
         { USB_DEVICE(0x07fa, 0x1196), .driver_info = DEVICE_ZD1211B },
+        { USB_DEVICE(0x0df6, 0x0036), .driver_info = DEVICE_ZD1211B },
         /* "Driverless" devices that need ejecting */
         { USB_DEVICE(0x0ace, 0x2011), .driver_info = DEVICE_INSTALLER },
         { USB_DEVICE(0x0ace, 0x20ff), .driver_info = DEVICE_INSTALLER },
diff --git a/drivers/oprofile/cpu_buffer.c b/drivers/oprofile/cpu_buffer.c
index 2e03b6d796d3..e76d715e4342 100644
--- a/drivers/oprofile/cpu_buffer.c
+++ b/drivers/oprofile/cpu_buffer.c
@@ -393,16 +393,21 @@ oprofile_write_reserve(struct op_entry *entry, struct pt_regs * const regs,
         return;
 
 fail:
+        entry->event = NULL;
         cpu_buf->sample_lost_overflow++;
 }
 
 int oprofile_add_data(struct op_entry *entry, unsigned long val)
 {
+        if (!entry->event)
+                return 0;
         return op_cpu_buffer_add_data(entry, val);
 }
 
 int oprofile_write_commit(struct op_entry *entry)
 {
+        if (!entry->event)
+                return -EINVAL;
         return op_cpu_buffer_write_commit(entry);
 }
 
diff --git a/drivers/oprofile/cpu_buffer.h b/drivers/oprofile/cpu_buffer.h
index 63f81c44846a..272995d20293 100644
--- a/drivers/oprofile/cpu_buffer.h
+++ b/drivers/oprofile/cpu_buffer.h
@@ -66,6 +66,13 @@ static inline void op_cpu_buffer_reset(int cpu)
         cpu_buf->last_task = NULL;
 }
 
+/*
+ * op_cpu_buffer_add_data() and op_cpu_buffer_write_commit() may be
+ * called only if op_cpu_buffer_write_reserve() did not return NULL or
+ * entry->event != NULL, otherwise entry->size or entry->event will be
+ * used uninitialized.
+ */
+
 struct op_sample
 *op_cpu_buffer_write_reserve(struct op_entry *entry, unsigned long size);
 int op_cpu_buffer_write_commit(struct op_entry *entry);
diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c
index 5482d4ed8256..c2485542f543 100644
--- a/drivers/pci/hotplug/pciehp_core.c
+++ b/drivers/pci/hotplug/pciehp_core.c
@@ -126,8 +126,10 @@ static int set_lock_status(struct hotplug_slot *hotplug_slot, u8 status)
         mutex_lock(&slot->ctrl->crit_sect);
 
         /* has it been >1 sec since our last toggle? */
-        if ((get_seconds() - slot->last_emi_toggle) < 1)
+        if ((get_seconds() - slot->last_emi_toggle) < 1) {
+                mutex_unlock(&slot->ctrl->crit_sect);
                 return -EINVAL;
+        }
 
         /* see what our current state is */
         retval = get_lock_status(hotplug_slot, &value);
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index b4a90badd0a6..896a15d70f5b 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -398,21 +398,19 @@ static int msi_capability_init(struct pci_dev *dev)
         entry->msi_attrib.masked = 1;
         entry->msi_attrib.default_irq = dev->irq;       /* Save IOAPIC IRQ */
         entry->msi_attrib.pos = pos;
-        if (entry->msi_attrib.maskbit) {
-                entry->mask_base = (void __iomem *)(long)msi_mask_bits_reg(pos,
-                                entry->msi_attrib.is_64);
-        }
         entry->dev = dev;
         if (entry->msi_attrib.maskbit) {
-                unsigned int maskbits, temp;
+                unsigned int base, maskbits, temp;
+
+                base = msi_mask_bits_reg(pos, entry->msi_attrib.is_64);
+                entry->mask_base = (void __iomem *)(long)base;
+
                 /* All MSIs are unmasked by default, Mask them all */
-                pci_read_config_dword(dev,
-                        msi_mask_bits_reg(pos, entry->msi_attrib.is_64),
-                        &maskbits);
+                pci_read_config_dword(dev, base, &maskbits);
                 temp = (1 << multi_msi_capable(control));
                 temp = ((temp - 1) & ~temp);
                 maskbits |= temp;
-                pci_write_config_dword(dev, entry->msi_attrib.is_64, maskbits);
+                pci_write_config_dword(dev, base, maskbits);
                 entry->msi_attrib.maskbits_mask = temp;
         }
         list_add_tail(&entry->list, &dev->msi_list);
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index c697f2680856..9de07b75b993 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -355,17 +355,27 @@ static int pci_legacy_suspend(struct device *dev, pm_message_t state)
         int i = 0;
 
         if (drv && drv->suspend) {
+                pci_dev->state_saved = false;
+
                 i = drv->suspend(pci_dev, state);
                 suspend_report_result(drv->suspend, i);
-        } else {
-                pci_save_state(pci_dev);
-                /*
-                 * This is for compatibility with existing code with legacy PM
-                 * support.
-                 */
-                pci_pm_set_unknown_state(pci_dev);
+                if (i)
+                        return i;
+
+                if (pci_dev->state_saved)
+                        goto Fixup;
+
+                if (WARN_ON_ONCE(pci_dev->current_state != PCI_D0))
+                        goto Fixup;
         }
 
+        pci_save_state(pci_dev);
+        /*
+         * This is for compatibility with existing code with legacy PM support.
+         */
+        pci_pm_set_unknown_state(pci_dev);
+
+ Fixup:
         pci_fixup_device(pci_fixup_suspend, pci_dev);
 
         return i;
@@ -386,81 +396,34 @@ static int pci_legacy_suspend_late(struct device *dev, pm_message_t state)
 
 static int pci_legacy_resume_early(struct device *dev)
 {
-        int error = 0;
         struct pci_dev * pci_dev = to_pci_dev(dev);
         struct pci_driver * drv = pci_dev->driver;
 
-        pci_fixup_device(pci_fixup_resume_early, pci_dev);
-
-        if (drv && drv->resume_early)
-                error = drv->resume_early(pci_dev);
-        return error;
+        return drv && drv->resume_early ?
+                        drv->resume_early(pci_dev) : 0;
 }
 
 static int pci_legacy_resume(struct device *dev)
 {
-        int error;
         struct pci_dev * pci_dev = to_pci_dev(dev);
         struct pci_driver * drv = pci_dev->driver;
 
         pci_fixup_device(pci_fixup_resume, pci_dev);
 
-        if (drv && drv->resume) {
-                error = drv->resume(pci_dev);
-        } else {
-                /* restore the PCI config space */
-                pci_restore_state(pci_dev);
-                error = pci_pm_reenable_device(pci_dev);
-        }
-        return error;
+        return drv && drv->resume ?
+                        drv->resume(pci_dev) : pci_pm_reenable_device(pci_dev);
 }
 
 /* Auxiliary functions used by the new power management framework */
 
-static int pci_restore_standard_config(struct pci_dev *pci_dev)
-{
-        struct pci_dev *parent = pci_dev->bus->self;
-        int error = 0;
-
-        /* Check if the device's bus is operational */
-        if (!parent || parent->current_state == PCI_D0) {
-                pci_restore_state(pci_dev);
-                pci_update_current_state(pci_dev, PCI_D0);
-        } else {
-                dev_warn(&pci_dev->dev, "unable to restore config, "
-                        "bridge %s in low power state D%d\n", pci_name(parent),
-                        parent->current_state);
-                pci_dev->current_state = PCI_UNKNOWN;
-                error = -EAGAIN;
-        }
-
-        return error;
-}
-
-static bool pci_is_bridge(struct pci_dev *pci_dev)
-{
-        return !!(pci_dev->subordinate);
-}
-
 static void pci_pm_default_resume_noirq(struct pci_dev *pci_dev)
 {
-        if (pci_restore_standard_config(pci_dev))
-                pci_fixup_device(pci_fixup_resume_early, pci_dev);
+        pci_restore_standard_config(pci_dev);
+        pci_fixup_device(pci_fixup_resume_early, pci_dev);
 }
 
 static int pci_pm_default_resume(struct pci_dev *pci_dev)
 {
-        /*
-         * pci_restore_standard_config() should have been called once already,
-         * but it would have failed if the device's parent bridge had not been
-         * in power state D0 at that time.  Check it and try again if necessary.
-         */
-        if (pci_dev->current_state == PCI_UNKNOWN) {
-                int error = pci_restore_standard_config(pci_dev);
-                if (error)
-                        return error;
-        }
-
         pci_fixup_device(pci_fixup_resume, pci_dev);
 
         if (!pci_is_bridge(pci_dev))
@@ -575,11 +538,11 @@ static int pci_pm_resume_noirq(struct device *dev)
         struct device_driver *drv = dev->driver;
         int error = 0;
 
+        pci_pm_default_resume_noirq(pci_dev);
+
         if (pci_has_legacy_pm_support(pci_dev))
                 return pci_legacy_resume_early(dev);
 
-        pci_pm_default_resume_noirq(pci_dev);
-
         if (drv && drv->pm && drv->pm->resume_noirq)
                 error = drv->pm->resume_noirq(dev);
 
@@ -730,11 +693,11 @@ static int pci_pm_restore_noirq(struct device *dev)
         struct device_driver *drv = dev->driver;
         int error = 0;
 
+        pci_pm_default_resume_noirq(pci_dev);
+
         if (pci_has_legacy_pm_support(pci_dev))
                 return pci_legacy_resume_early(dev);
 
-        pci_pm_default_resume_noirq(pci_dev);
-
         if (drv && drv->pm && drv->pm->restore_noirq)
                 error = drv->pm->restore_noirq(dev);
 
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index e491fdedf705..17bd9325a245 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -22,7 +22,7 @@
 #include <asm/dma.h>    /* isa_dma_bridge_buggy */
 #include "pci.h"
 
-unsigned int pci_pm_d3_delay = 10;
+unsigned int pci_pm_d3_delay = PCI_PM_D3_WAIT;
 
 #ifdef CONFIG_PCI_DOMAINS
 int pci_domains_supported = 1;
@@ -426,6 +426,7 @@ static inline int platform_pci_sleep_wake(struct pci_dev *dev, bool enable)
  *                           given PCI device
  * @dev: PCI device to handle.
  * @state: PCI power state (D0, D1, D2, D3hot) to put the device into.
+ * @wait: If 'true', wait for the device to change its power state
  *
  * RETURN VALUE:
  * -EINVAL if the requested state is invalid.
@@ -435,7 +436,7 @@ static inline int platform_pci_sleep_wake(struct pci_dev *dev, bool enable)
  * 0 if device's power state has been successfully changed.
  */
 static int
-pci_raw_set_power_state(struct pci_dev *dev, pci_power_t state)
+pci_raw_set_power_state(struct pci_dev *dev, pci_power_t state, bool wait)
 {
         u16 pmcsr;
         bool need_restore = false;
@@ -480,8 +481,10 @@ pci_raw_set_power_state(struct pci_dev *dev, pci_power_t state)
                 break;
         case PCI_UNKNOWN: /* Boot-up */
                 if ((pmcsr & PCI_PM_CTRL_STATE_MASK) == PCI_D3hot
-                 && !(pmcsr & PCI_PM_CTRL_NO_SOFT_RESET))
+                 && !(pmcsr & PCI_PM_CTRL_NO_SOFT_RESET)) {
                         need_restore = true;
+                        wait = true;
+                }
                 /* Fall-through: force to D0 */
         default:
                 pmcsr = 0;
@@ -491,12 +494,15 @@ pci_raw_set_power_state(struct pci_dev *dev, pci_power_t state)
         /* enter specified state */
         pci_write_config_word(dev, dev->pm_cap + PCI_PM_CTRL, pmcsr);
 
+        if (!wait)
+                return 0;
+
         /* Mandatory power management transition delays */
         /* see PCI PM 1.1 5.6.1 table 18 */
         if (state == PCI_D3hot || dev->current_state == PCI_D3hot)
                 msleep(pci_pm_d3_delay);
         else if (state == PCI_D2 || dev->current_state == PCI_D2)
-                udelay(200);
+                udelay(PCI_PM_D2_DELAY);
 
         dev->current_state = state;
 
@@ -515,7 +521,7 @@ pci_raw_set_power_state(struct pci_dev *dev, pci_power_t state)
         if (need_restore)
                 pci_restore_bars(dev);
 
-        if (dev->bus->self)
+        if (wait && dev->bus->self)
                 pcie_aspm_pm_state_change(dev->bus->self);
 
         return 0;
@@ -585,7 +591,7 @@ int pci_set_power_state(struct pci_dev *dev, pci_power_t state)
         if (state == PCI_D3hot && (dev->dev_flags & PCI_DEV_FLAGS_NO_D3))
                 return 0;
 
-        error = pci_raw_set_power_state(dev, state);
+        error = pci_raw_set_power_state(dev, state, true);
 
         if (state > PCI_D0 && platform_pci_power_manageable(dev)) {
                 /* Allow the platform to finalize the transition */
@@ -730,6 +736,7 @@ pci_save_state(struct pci_dev *dev)
         /* XXX: 100% dword access ok here? */
         for (i = 0; i < 16; i++)
                 pci_read_config_dword(dev, i * 4,&dev->saved_config_space[i]);
+        dev->state_saved = true;
         if ((i = pci_save_pcie_state(dev)) != 0)
                 return i;
         if ((i = pci_save_pcix_state(dev)) != 0)
@@ -1374,6 +1381,50 @@ void pci_allocate_cap_save_buffers(struct pci_dev *dev)
 }
 
 /**
+ * pci_restore_standard_config - restore standard config registers of PCI device
+ * @dev: PCI device to handle
+ *
+ * This function assumes that the device's configuration space is accessible.
+ * If the device needs to be powered up, the function will wait for it to
+ * change the state.
+ */
+int pci_restore_standard_config(struct pci_dev *dev)
+{
+        pci_power_t prev_state;
+        int error;
+
+        pci_restore_state(dev);
+        pci_update_current_state(dev, PCI_D0);
+
+        prev_state = dev->current_state;
+        if (prev_state == PCI_D0)
+                return 0;
+
+        error = pci_raw_set_power_state(dev, PCI_D0, false);
+        if (error)
+                return error;
+
+        if (pci_is_bridge(dev)) {
+                if (prev_state > PCI_D1)
+                        mdelay(PCI_PM_BUS_WAIT);
+        } else {
+                switch(prev_state) {
+                case PCI_D3cold:
+                case PCI_D3hot:
+                        mdelay(pci_pm_d3_delay);
+                        break;
+                case PCI_D2:
+                        udelay(PCI_PM_D2_DELAY);
+                        break;
+                }
+        }
+
+        dev->current_state = PCI_D0;
+
+        return 0;
+}
+
+/**
  * pci_enable_ari - enable ARI forwarding if hardware support it
  * @dev: the PCI device
  */
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 1351bb4addde..26ddf78ac300 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -49,6 +49,12 @@ extern void pci_disable_enabled_device(struct pci_dev *dev);
 extern void pci_pm_init(struct pci_dev *dev);
 extern void platform_pci_wakeup_init(struct pci_dev *dev);
 extern void pci_allocate_cap_save_buffers(struct pci_dev *dev);
+extern int pci_restore_standard_config(struct pci_dev *dev);
+
+static inline bool pci_is_bridge(struct pci_dev *pci_dev)
+{
+        return !!(pci_dev->subordinate);
+}
 
 extern int pci_user_read_config_byte(struct pci_dev *dev, int where, u8 *val);
 extern int pci_user_read_config_word(struct pci_dev *dev, int where, u16 *val);
diff --git a/drivers/power/pda_power.c b/drivers/power/pda_power.c
index d30bb766fcef..b56a704409d2 100644
--- a/drivers/power/pda_power.c
+++ b/drivers/power/pda_power.c
@@ -20,7 +20,7 @@
 
 static inline unsigned int get_irq_flags(struct resource *res)
 {
-        unsigned int flags = IRQF_DISABLED | IRQF_SHARED;
+        unsigned int flags = IRQF_SAMPLE_RANDOM | IRQF_SHARED;
 
         flags |= res->flags & IRQF_TRIGGER_MASK;
 
diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c
index bca08eff4a77..083f787d260d 100644
--- a/drivers/s390/net/lcs.c
+++ b/drivers/s390/net/lcs.c
@@ -70,7 +70,9 @@ static char debug_buffer[255];
 static void lcs_tasklet(unsigned long);
 static void lcs_start_kernel_thread(struct work_struct *);
 static void lcs_get_frames_cb(struct lcs_channel *, struct lcs_buffer *);
+#ifdef CONFIG_IP_MULTICAST
 static int lcs_send_delipm(struct lcs_card *, struct lcs_ipm_list *);
+#endif /* CONFIG_IP_MULTICAST */
 static int lcs_recovery(void *ptr);
 
 /**
@@ -1285,6 +1287,8 @@ out:
         lcs_clear_thread_running_bit(card, LCS_SET_MC_THREAD);
         return 0;
 }
+#endif /* CONFIG_IP_MULTICAST */
+
 /**
  * function called by net device to
  * handle multicast address relevant things
@@ -1292,6 +1296,7 @@ out:
 static void
 lcs_set_multicast_list(struct net_device *dev)
 {
+#ifdef CONFIG_IP_MULTICAST
         struct lcs_card *card;
 
         LCS_DBF_TEXT(4, trace, "setmulti");
@@ -1299,9 +1304,8 @@ lcs_set_multicast_list(struct net_device *dev)
 
         if (!lcs_set_thread_start_bit(card, LCS_SET_MC_THREAD))
                 schedule_work(&card->kernel_thread_starter);
-}
-
 #endif /* CONFIG_IP_MULTICAST */
+}
 
 static long
 lcs_check_irb_error(struct ccw_device *cdev, struct irb *irb)
diff --git a/drivers/serial/sh-sci.h b/drivers/serial/sh-sci.h
index 38c600c0dbbf..3599828b9766 100644
--- a/drivers/serial/sh-sci.h
+++ b/drivers/serial/sh-sci.h
@@ -32,7 +32,9 @@
 #elif defined(CONFIG_CPU_SUBTYPE_SH7720) || \
       defined(CONFIG_CPU_SUBTYPE_SH7721)
 # define SCSCR_INIT(port)  0x0030 /* TIE=0,RIE=0,TE=1,RE=1 */
-#define SCIF_ORER    0x0200   /* overrun error bit */
+# define PORT_PTCR         0xA405011EUL
+# define PORT_PVCR         0xA4050122UL
+# define SCIF_ORER         0x0200   /* overrun error bit */
 #elif defined(CONFIG_SH_RTS7751R2D)
 # define SCSPTR1 0xFFE0001C /* 8 bit SCIF */
 # define SCSPTR2 0xFFE80020 /* 16 bit SCIF */
@@ -393,6 +395,7 @@ SCIx_FNS(SCSCR,  0x08, 16, 0x08, 16)
 SCIx_FNS(SCxTDR, 0x20,  8, 0x0c,  8)
 SCIx_FNS(SCxSR,  0x14, 16, 0x10, 16)
 SCIx_FNS(SCxRDR, 0x24,  8, 0x14,  8)
+SCIx_FNS(SCSPTR, 0,     0,    0,  0)
 SCIF_FNS(SCTDSR, 0x0c,  8)
 SCIF_FNS(SCFER,  0x10, 16)
 SCIF_FNS(SCFCR,  0x18, 16)
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index 4a6fe01831a8..83a185d52961 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -230,17 +230,6 @@ config SPI_XILINX
 #
 comment "SPI Protocol Masters"
 
-config SPI_AT25
-        tristate "SPI EEPROMs from most vendors"
-        depends on SYSFS
-        help
-          Enable this driver to get read/write support to most SPI EEPROMs,
-          after you configure the board init code to know about each eeprom
-          on your target board.
-
-          This driver can also be built as a module.  If so, the module
-          will be called at25.
-
 config SPI_SPIDEV
         tristate "User mode SPI device driver support"
         depends on EXPERIMENTAL
diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile
index 5e9f521b8844..5d0451936d86 100644
--- a/drivers/spi/Makefile
+++ b/drivers/spi/Makefile
@@ -33,7 +33,6 @@ obj-$(CONFIG_SPI_SH_SCI)		+= spi_sh_sci.o
 #       ... add above this line ...
 
 # SPI protocol drivers (device/link on bus)
-obj-$(CONFIG_SPI_AT25)          += at25.o
 obj-$(CONFIG_SPI_SPIDEV)        += spidev.o
 obj-$(CONFIG_SPI_TLE62X0)       += tle62x0.o
 #       ... add above this line ...
diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c
index 4bbddb73abd9..f3aaba35e912 100644
--- a/drivers/usb/host/ohci-omap.c
+++ b/drivers/usb/host/ohci-omap.c
@@ -315,14 +315,14 @@ static int usb_hcd_omap_probe (const struct hc_driver *driver,
                 return -ENODEV;
         }
 
-        usb_host_ck = clk_get(0, "usb_hhc_ck");
+        usb_host_ck = clk_get(&pdev->dev, "usb_hhc_ck");
         if (IS_ERR(usb_host_ck))
                 return PTR_ERR(usb_host_ck);
 
         if (!cpu_is_omap15xx())
-                usb_dc_ck = clk_get(0, "usb_dc_ck");
+                usb_dc_ck = clk_get(&pdev->dev, "usb_dc_ck");
         else
-                usb_dc_ck = clk_get(0, "lb_ck");
+                usb_dc_ck = clk_get(&pdev->dev, "lb_ck");
 
         if (IS_ERR(usb_dc_ck)) {
                 clk_put(usb_host_ck);
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 6372f8b17b45..c94f71980c1b 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -2123,6 +2123,18 @@ config FB_PRE_INIT_FB
           Select this option if display contents should be inherited as set by
           the bootloader.
 
+config FB_MX3
+       tristate "MX3 Framebuffer support"
+       depends on FB && MX3_IPU
+       select FB_CFB_FILLRECT
+       select FB_CFB_COPYAREA
+       select FB_CFB_IMAGEBLIT
+       default y
+       help
+         This is a framebuffer device for the i.MX31 LCD Controller. So
+         far only synchronous displays are supported. If you plan to use
+         an LCD display with your i.MX31 system, say Y here.
+
 source "drivers/video/omap/Kconfig"
 
 source "drivers/video/backlight/Kconfig"
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index be2b657546ef..2a998ca6181d 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -132,6 +132,7 @@ obj-$(CONFIG_FB_VGA16)            += vga16fb.o
 obj-$(CONFIG_FB_OF)               += offb.o
 obj-$(CONFIG_FB_BF54X_LQ043)      += bf54x-lq043fb.o
 obj-$(CONFIG_FB_BFIN_T350MCQB)    += bfin-t350mcqb-fb.o
+obj-$(CONFIG_FB_MX3)              += mx3fb.o
 
 # the test framebuffer is last
 obj-$(CONFIG_FB_VIRTUAL)          += vfb.o
diff --git a/drivers/video/aty/radeon_i2c.c b/drivers/video/aty/radeon_i2c.c
index 2c5567175dca..359fc64e761a 100644
--- a/drivers/video/aty/radeon_i2c.c
+++ b/drivers/video/aty/radeon_i2c.c
@@ -72,7 +72,6 @@ static int radeon_setup_i2c_bus(struct radeon_i2c_chan *chan, const char *name)
         snprintf(chan->adapter.name, sizeof(chan->adapter.name),
                  "radeonfb %s", name);
         chan->adapter.owner             = THIS_MODULE;
-        chan->adapter.id                = I2C_HW_B_RADEON;
         chan->adapter.algo_data         = &chan->algo;
         chan->adapter.dev.parent        = &chan->rinfo->pdev->dev;
         chan->algo.setsda               = radeon_gpio_setsda;
diff --git a/drivers/video/i810/i810-i2c.c b/drivers/video/i810/i810-i2c.c
index 7787c3322ffb..9dd55e5324a1 100644
--- a/drivers/video/i810/i810-i2c.c
+++ b/drivers/video/i810/i810-i2c.c
@@ -90,7 +90,6 @@ static int i810_setup_i2c_bus(struct i810fb_i2c_chan *chan, const char *name)
         chan->adapter.owner             = THIS_MODULE;
         chan->adapter.algo_data         = &chan->algo;
         chan->adapter.dev.parent        = &chan->par->dev->dev;
-        chan->adapter.id                = I2C_HW_B_I810;
         chan->algo.setsda               = i810i2c_setsda;
         chan->algo.setscl               = i810i2c_setscl;
         chan->algo.getsda               = i810i2c_getsda;
diff --git a/drivers/video/intelfb/intelfb_i2c.c b/drivers/video/intelfb/intelfb_i2c.c
index 5d896b81f4e0..b3065492bb20 100644
--- a/drivers/video/intelfb/intelfb_i2c.c
+++ b/drivers/video/intelfb/intelfb_i2c.c
@@ -111,7 +111,6 @@ static int intelfb_setup_i2c_bus(struct intelfb_info *dinfo,
                  "intelfb %s", name);
         chan->adapter.class             = class;
         chan->adapter.owner             = THIS_MODULE;
-        chan->adapter.id                = I2C_HW_B_INTELFB;
         chan->adapter.algo_data         = &chan->algo;
         chan->adapter.dev.parent        = &chan->dinfo->pdev->dev;
         chan->algo.setsda               = intelfb_gpio_setsda;
diff --git a/drivers/video/mx3fb.c b/drivers/video/mx3fb.c
new file mode 100644
index 000000000000..8a75d05f4334
--- /dev/null
+++ b/drivers/video/mx3fb.c
@@ -0,0 +1,1555 @@
+/*
+ * Copyright (C) 2008
+ * Guennadi Liakhovetski, DENX Software Engineering, <lg@denx.de>
+ *
+ * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/fb.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/dma-mapping.h>
+#include <linux/dmaengine.h>
+#include <linux/console.h>
+#include <linux/clk.h>
+#include <linux/mutex.h>
+
+#include <mach/hardware.h>
+#include <mach/ipu.h>
+#include <mach/mx3fb.h>
+
+#include <asm/io.h>
+#include <asm/uaccess.h>
+
+#define MX3FB_NAME             "mx3_sdc_fb"
+
+#define MX3FB_REG_OFFSET       0xB4
+
+/* SDC Registers */
+#define SDC_COM_CONF           (0xB4 - MX3FB_REG_OFFSET)
+#define SDC_GW_CTRL            (0xB8 - MX3FB_REG_OFFSET)
+#define SDC_FG_POS             (0xBC - MX3FB_REG_OFFSET)
+#define SDC_BG_POS             (0xC0 - MX3FB_REG_OFFSET)
+#define SDC_CUR_POS            (0xC4 - MX3FB_REG_OFFSET)
+#define SDC_PWM_CTRL           (0xC8 - MX3FB_REG_OFFSET)
+#define SDC_CUR_MAP            (0xCC - MX3FB_REG_OFFSET)
+#define SDC_HOR_CONF           (0xD0 - MX3FB_REG_OFFSET)
+#define SDC_VER_CONF           (0xD4 - MX3FB_REG_OFFSET)
+#define SDC_SHARP_CONF_1       (0xD8 - MX3FB_REG_OFFSET)
+#define SDC_SHARP_CONF_2       (0xDC - MX3FB_REG_OFFSET)
+
+/* Register bits */
+#define SDC_COM_TFT_COLOR      0x00000001UL
+#define SDC_COM_FG_EN          0x00000010UL
+#define SDC_COM_GWSEL          0x00000020UL
+#define SDC_COM_GLB_A          0x00000040UL
+#define SDC_COM_KEY_COLOR_G    0x00000080UL
+#define SDC_COM_BG_EN          0x00000200UL
+#define SDC_COM_SHARP          0x00001000UL
+
+#define SDC_V_SYNC_WIDTH_L     0x00000001UL
+
+/* Display Interface registers */
+#define DI_DISP_IF_CONF                (0x0124 - MX3FB_REG_OFFSET)
+#define DI_DISP_SIG_POL                (0x0128 - MX3FB_REG_OFFSET)
+#define DI_SER_DISP1_CONF      (0x012C - MX3FB_REG_OFFSET)
+#define DI_SER_DISP2_CONF      (0x0130 - MX3FB_REG_OFFSET)
+#define DI_HSP_CLK_PER         (0x0134 - MX3FB_REG_OFFSET)
+#define DI_DISP0_TIME_CONF_1   (0x0138 - MX3FB_REG_OFFSET)
+#define DI_DISP0_TIME_CONF_2   (0x013C - MX3FB_REG_OFFSET)
+#define DI_DISP0_TIME_CONF_3   (0x0140 - MX3FB_REG_OFFSET)
+#define DI_DISP1_TIME_CONF_1   (0x0144 - MX3FB_REG_OFFSET)
+#define DI_DISP1_TIME_CONF_2   (0x0148 - MX3FB_REG_OFFSET)
+#define DI_DISP1_TIME_CONF_3   (0x014C - MX3FB_REG_OFFSET)
+#define DI_DISP2_TIME_CONF_1   (0x0150 - MX3FB_REG_OFFSET)
+#define DI_DISP2_TIME_CONF_2   (0x0154 - MX3FB_REG_OFFSET)
+#define DI_DISP2_TIME_CONF_3   (0x0158 - MX3FB_REG_OFFSET)
+#define DI_DISP3_TIME_CONF     (0x015C - MX3FB_REG_OFFSET)
+#define DI_DISP0_DB0_MAP       (0x0160 - MX3FB_REG_OFFSET)
+#define DI_DISP0_DB1_MAP       (0x0164 - MX3FB_REG_OFFSET)
+#define DI_DISP0_DB2_MAP       (0x0168 - MX3FB_REG_OFFSET)
+#define DI_DISP0_CB0_MAP       (0x016C - MX3FB_REG_OFFSET)
+#define DI_DISP0_CB1_MAP       (0x0170 - MX3FB_REG_OFFSET)
+#define DI_DISP0_CB2_MAP       (0x0174 - MX3FB_REG_OFFSET)
+#define DI_DISP1_DB0_MAP       (0x0178 - MX3FB_REG_OFFSET)
+#define DI_DISP1_DB1_MAP       (0x017C - MX3FB_REG_OFFSET)
+#define DI_DISP1_DB2_MAP       (0x0180 - MX3FB_REG_OFFSET)
+#define DI_DISP1_CB0_MAP       (0x0184 - MX3FB_REG_OFFSET)
+#define DI_DISP1_CB1_MAP       (0x0188 - MX3FB_REG_OFFSET)
+#define DI_DISP1_CB2_MAP       (0x018C - MX3FB_REG_OFFSET)
+#define DI_DISP2_DB0_MAP       (0x0190 - MX3FB_REG_OFFSET)
+#define DI_DISP2_DB1_MAP       (0x0194 - MX3FB_REG_OFFSET)
+#define DI_DISP2_DB2_MAP       (0x0198 - MX3FB_REG_OFFSET)
+#define DI_DISP2_CB0_MAP       (0x019C - MX3FB_REG_OFFSET)
+#define DI_DISP2_CB1_MAP       (0x01A0 - MX3FB_REG_OFFSET)
+#define DI_DISP2_CB2_MAP       (0x01A4 - MX3FB_REG_OFFSET)
+#define DI_DISP3_B0_MAP                (0x01A8 - MX3FB_REG_OFFSET)
+#define DI_DISP3_B1_MAP                (0x01AC - MX3FB_REG_OFFSET)
+#define DI_DISP3_B2_MAP                (0x01B0 - MX3FB_REG_OFFSET)
+#define DI_DISP_ACC_CC         (0x01B4 - MX3FB_REG_OFFSET)
+#define DI_DISP_LLA_CONF       (0x01B8 - MX3FB_REG_OFFSET)
+#define DI_DISP_LLA_DATA       (0x01BC - MX3FB_REG_OFFSET)
+
+/* DI_DISP_SIG_POL bits */
+#define DI_D3_VSYNC_POL_SHIFT          28
+#define DI_D3_HSYNC_POL_SHIFT          27
+#define DI_D3_DRDY_SHARP_POL_SHIFT     26
+#define DI_D3_CLK_POL_SHIFT            25
+#define DI_D3_DATA_POL_SHIFT           24
+
+/* DI_DISP_IF_CONF bits */
+#define DI_D3_CLK_IDLE_SHIFT           26
+#define DI_D3_CLK_SEL_SHIFT            25
+#define DI_D3_DATAMSK_SHIFT            24
+
+enum ipu_panel {
+       IPU_PANEL_SHARP_TFT,
+       IPU_PANEL_TFT,
+};
+
+struct ipu_di_signal_cfg {
+       unsigned datamask_en:1;
+       unsigned clksel_en:1;
+       unsigned clkidle_en:1;
+       unsigned data_pol:1;    /* true = inverted */
+       unsigned clk_pol:1;     /* true = rising edge */
+       unsigned enable_pol:1;
+       unsigned Hsync_pol:1;   /* true = active high */
+       unsigned Vsync_pol:1;
+};
+
+static const struct fb_videomode mx3fb_modedb[] = {
+       {
+               /* 240x320 @ 60 Hz */
+               .name           = "Sharp-QVGA",
+               .refresh        = 60,
+               .xres           = 240,
+               .yres           = 320,
+               .pixclock       = 185925,
+               .left_margin    = 9,
+               .right_margin   = 16,
+               .upper_margin   = 7,
+               .lower_margin   = 9,
+               .hsync_len      = 1,
+               .vsync_len      = 1,
+               .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_SHARP_MODE |
+                                 FB_SYNC_CLK_INVERT | FB_SYNC_DATA_INVERT |
+                                 FB_SYNC_CLK_IDLE_EN,
+               .vmode          = FB_VMODE_NONINTERLACED,
+               .flag           = 0,
+       }, {
+               /* 240x33 @ 60 Hz */
+               .name           = "Sharp-CLI",
+               .refresh        = 60,
+               .xres           = 240,
+               .yres           = 33,
+               .pixclock       = 185925,
+               .left_margin    = 9,
+               .right_margin   = 16,
+               .upper_margin   = 7,
+               .lower_margin   = 9 + 287,
+               .hsync_len      = 1,
+               .vsync_len      = 1,
+               .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_SHARP_MODE |
+                                 FB_SYNC_CLK_INVERT | FB_SYNC_DATA_INVERT |
+                                 FB_SYNC_CLK_IDLE_EN,
+               .vmode          = FB_VMODE_NONINTERLACED,
+               .flag           = 0,
+       }, {
+               /* 640x480 @ 60 Hz */
+               .name           = "NEC-VGA",
+               .refresh        = 60,
+               .xres           = 640,
+               .yres           = 480,
+               .pixclock       = 38255,
+               .left_margin    = 144,
+               .right_margin   = 0,
+               .upper_margin   = 34,
+               .lower_margin   = 40,
+               .hsync_len      = 1,
+               .vsync_len      = 1,
+               .sync           = FB_SYNC_VERT_HIGH_ACT | FB_SYNC_OE_ACT_HIGH,
+               .vmode          = FB_VMODE_NONINTERLACED,
+               .flag           = 0,
+       }, {
+               /* NTSC TV output */
+               .name           = "TV-NTSC",
+               .refresh        = 60,
+               .xres           = 640,
+               .yres           = 480,
+               .pixclock       = 37538,
+               .left_margin    = 38,
+               .right_margin   = 858 - 640 - 38 - 3,
+               .upper_margin   = 36,
+               .lower_margin   = 518 - 480 - 36 - 1,
+               .hsync_len      = 3,
+               .vsync_len      = 1,
+               .sync           = 0,
+               .vmode          = FB_VMODE_NONINTERLACED,
+               .flag           = 0,
+       }, {
+               /* PAL TV output */
+               .name           = "TV-PAL",
+               .refresh        = 50,
+               .xres           = 640,
+               .yres           = 480,
+               .pixclock       = 37538,
+               .left_margin    = 38,
+               .right_margin   = 960 - 640 - 38 - 32,
+               .upper_margin   = 32,
+               .lower_margin   = 555 - 480 - 32 - 3,
+               .hsync_len      = 32,
+               .vsync_len      = 3,
+               .sync           = 0,
+               .vmode          = FB_VMODE_NONINTERLACED,
+               .flag           = 0,
+       }, {
+               /* TV output VGA mode, 640x480 @ 65 Hz */
+               .name           = "TV-VGA",
+               .refresh        = 60,
+               .xres           = 640,
+               .yres           = 480,
+               .pixclock       = 40574,
+               .left_margin    = 35,
+               .right_margin   = 45,
+               .upper_margin   = 9,
+               .lower_margin   = 1,
+               .hsync_len      = 46,
+               .vsync_len      = 5,
+               .sync           = 0,
+               .vmode          = FB_VMODE_NONINTERLACED,
+               .flag           = 0,
+       },
+};
+
+struct mx3fb_data {
+       struct fb_info          *fbi;
+       int                     backlight_level;
+       void __iomem            *reg_base;
+       spinlock_t              lock;
+       struct device           *dev;
+
+       uint32_t                h_start_width;
+       uint32_t                v_start_width;
+};
+
+struct dma_chan_request {
+       struct mx3fb_data       *mx3fb;
+       enum ipu_channel        id;
+};
+
+/* MX3 specific framebuffer information. */
+struct mx3fb_info {
+       int                             blank;
+       enum ipu_channel                ipu_ch;
+       uint32_t                        cur_ipu_buf;
+
+       u32                             pseudo_palette[16];
+
+       struct completion               flip_cmpl;
+       struct mutex                    mutex;  /* Protects fb-ops */
+       struct mx3fb_data               *mx3fb;
+       struct idmac_channel            *idmac_channel;
+       struct dma_async_tx_descriptor  *txd;
+       dma_cookie_t                    cookie;
+       struct scatterlist              sg[2];
+
+       u32                             sync;   /* preserve var->sync flags */
+};
+
+static void mx3fb_dma_done(void *);
+
+/* Used fb-mode and bpp. Can be set on kernel command line, therefore file-static. */
+static const char *fb_mode;
+static unsigned long default_bpp = 16;
+
+static u32 mx3fb_read_reg(struct mx3fb_data *mx3fb, unsigned long reg)
+{
+       return __raw_readl(mx3fb->reg_base + reg);
+}
+
+static void mx3fb_write_reg(struct mx3fb_data *mx3fb, u32 value, unsigned long reg)
+{
+       __raw_writel(value, mx3fb->reg_base + reg);
+}
+
+static const uint32_t di_mappings[] = {
+       0x1600AAAA, 0x00E05555, 0x00070000, 3,  /* RGB888 */
+       0x0005000F, 0x000B000F, 0x0011000F, 1,  /* RGB666 */
+       0x0011000F, 0x000B000F, 0x0005000F, 1,  /* BGR666 */
+       0x0004003F, 0x000A000F, 0x000F003F, 1   /* RGB565 */
+};
+
+static void sdc_fb_init(struct mx3fb_info *fbi)
+{
+       struct mx3fb_data *mx3fb = fbi->mx3fb;
+       uint32_t reg;
+
+       reg = mx3fb_read_reg(mx3fb, SDC_COM_CONF);
+
+       mx3fb_write_reg(mx3fb, reg | SDC_COM_BG_EN, SDC_COM_CONF);
+}
+
+/* Returns enabled flag before uninit */
+static uint32_t sdc_fb_uninit(struct mx3fb_info *fbi)
+{
+       struct mx3fb_data *mx3fb = fbi->mx3fb;
+       uint32_t reg;
+
+       reg = mx3fb_read_reg(mx3fb, SDC_COM_CONF);
+
+       mx3fb_write_reg(mx3fb, reg & ~SDC_COM_BG_EN, SDC_COM_CONF);
+
+       return reg & SDC_COM_BG_EN;
+}
+
+static void sdc_enable_channel(struct mx3fb_info *mx3_fbi)
+{
+       struct mx3fb_data *mx3fb = mx3_fbi->mx3fb;
+       struct idmac_channel *ichan = mx3_fbi->idmac_channel;
+       struct dma_chan *dma_chan = &ichan->dma_chan;
+       unsigned long flags;
+       dma_cookie_t cookie;
+
+       dev_dbg(mx3fb->dev, "mx3fbi %p, desc %p, sg %p\n", mx3_fbi,
+               to_tx_desc(mx3_fbi->txd), to_tx_desc(mx3_fbi->txd)->sg);
+
+       /* This enables the channel */
+       if (mx3_fbi->cookie < 0) {
+               mx3_fbi->txd = dma_chan->device->device_prep_slave_sg(dma_chan,
+                     &mx3_fbi->sg[0], 1, DMA_TO_DEVICE, DMA_PREP_INTERRUPT);
+               if (!mx3_fbi->txd) {
+                       dev_err(mx3fb->dev, "Cannot allocate descriptor on %d\n",
+                               dma_chan->chan_id);
+                       return;
+               }
+
+               mx3_fbi->txd->callback_param    = mx3_fbi->txd;
+               mx3_fbi->txd->callback          = mx3fb_dma_done;
+
+               cookie = mx3_fbi->txd->tx_submit(mx3_fbi->txd);
+               dev_dbg(mx3fb->dev, "%d: Submit %p #%d [%c]\n", __LINE__,
+                      mx3_fbi->txd, cookie, list_empty(&ichan->queue) ? '-' : '+');
+       } else {
+               if (!mx3_fbi->txd || !mx3_fbi->txd->tx_submit) {
+                       dev_err(mx3fb->dev, "Cannot enable channel %d\n",
+                               dma_chan->chan_id);
+                       return;
+               }
+
+               /* Just re-activate the same buffer */
+               dma_async_issue_pending(dma_chan);
+               cookie = mx3_fbi->cookie;
+               dev_dbg(mx3fb->dev, "%d: Re-submit %p #%d [%c]\n", __LINE__,
+                      mx3_fbi->txd, cookie, list_empty(&ichan->queue) ? '-' : '+');
+       }
+
+       if (cookie >= 0) {
+               spin_lock_irqsave(&mx3fb->lock, flags);
+               sdc_fb_init(mx3_fbi);
+               mx3_fbi->cookie = cookie;
+               spin_unlock_irqrestore(&mx3fb->lock, flags);
+       }
+
+       /*
+        * Attention! Without this msleep the channel keeps generating
+        * interrupts. Next sdc_set_brightness() is going to be called
+        * from mx3fb_blank().
+        */
+       msleep(2);
+}
+
+static void sdc_disable_channel(struct mx3fb_info *mx3_fbi)
+{
+       struct mx3fb_data *mx3fb = mx3_fbi->mx3fb;
+       uint32_t enabled;
+       unsigned long flags;
+
+       spin_lock_irqsave(&mx3fb->lock, flags);
+
+       enabled = sdc_fb_uninit(mx3_fbi);
+
+       spin_unlock_irqrestore(&mx3fb->lock, flags);
+
+       mx3_fbi->txd->chan->device->device_terminate_all(mx3_fbi->txd->chan);
+       mx3_fbi->txd = NULL;
+       mx3_fbi->cookie = -EINVAL;
+}
+
+/**
+ * sdc_set_window_pos() - set window position of the respective plane.
+ * @mx3fb:     mx3fb context.
+ * @channel:   IPU DMAC channel ID.
+ * @x_pos:     X coordinate relative to the top left corner to place window at.
+ * @y_pos:     Y coordinate relative to the top left corner to place window at.
+ * @return:    0 on success or negative error code on failure.
+ */
+static int sdc_set_window_pos(struct mx3fb_data *mx3fb, enum ipu_channel channel,
+                             int16_t x_pos, int16_t y_pos)
+{
+       x_pos += mx3fb->h_start_width;
+       y_pos += mx3fb->v_start_width;
+
+       if (channel != IDMAC_SDC_0)
+               return -EINVAL;
+
+       mx3fb_write_reg(mx3fb, (x_pos << 16) | y_pos, SDC_BG_POS);
+       return 0;
+}
+
+/**
+ * sdc_init_panel() - initialize a synchronous LCD panel.
+ * @mx3fb:             mx3fb context.
+ * @panel:             panel type.
+ * @pixel_clk:         desired pixel clock frequency in Hz.
+ * @width:             width of panel in pixels.
+ * @height:            height of panel in pixels.
+ * @pixel_fmt:         pixel format of buffer as FOURCC ASCII code.
+ * @h_start_width:     number of pixel clocks between the HSYNC signal pulse
+ *                     and the start of valid data.
+ * @h_sync_width:      width of the HSYNC signal in units of pixel clocks.
+ * @h_end_width:       number of pixel clocks between the end of valid data
+ *                     and the HSYNC signal for next line.
+ * @v_start_width:     number of lines between the VSYNC signal pulse and the
+ *                     start of valid data.
+ * @v_sync_width:      width of the VSYNC signal in units of lines
+ * @v_end_width:       number of lines between the end of valid data and the
+ *                     VSYNC signal for next frame.
+ * @sig:               bitfield of signal polarities for LCD interface.
+ * @return:            0 on success or negative error code on failure.
+ */
+static int sdc_init_panel(struct mx3fb_data *mx3fb, enum ipu_panel panel,
+                         uint32_t pixel_clk,
+                         uint16_t width, uint16_t height,
+                         enum pixel_fmt pixel_fmt,
+                         uint16_t h_start_width, uint16_t h_sync_width,
+                         uint16_t h_end_width, uint16_t v_start_width,
+                         uint16_t v_sync_width, uint16_t v_end_width,
+                         struct ipu_di_signal_cfg sig)
+{
+       unsigned long lock_flags;
+       uint32_t reg;
+       uint32_t old_conf;
+       uint32_t div;
+       struct clk *ipu_clk;
+
+       dev_dbg(mx3fb->dev, "panel size = %d x %d", width, height);
+
+       if (v_sync_width == 0 || h_sync_width == 0)
+               return -EINVAL;
+
+       /* Init panel size and blanking periods */
+       reg = ((uint32_t) (h_sync_width - 1) << 26) |
+               ((uint32_t) (width + h_start_width + h_end_width - 1) << 16);
+       mx3fb_write_reg(mx3fb, reg, SDC_HOR_CONF);
+
+#ifdef DEBUG
+       printk(KERN_CONT " hor_conf %x,", reg);
+#endif
+
+       reg = ((uint32_t) (v_sync_width - 1) << 26) | SDC_V_SYNC_WIDTH_L |
+           ((uint32_t) (height + v_start_width + v_end_width - 1) << 16);
+       mx3fb_write_reg(mx3fb, reg, SDC_VER_CONF);
+
+#ifdef DEBUG
+       printk(KERN_CONT " ver_conf %x\n", reg);
+#endif
+
+       mx3fb->h_start_width = h_start_width;
+       mx3fb->v_start_width = v_start_width;
+
+       switch (panel) {
+       case IPU_PANEL_SHARP_TFT:
+               mx3fb_write_reg(mx3fb, 0x00FD0102L, SDC_SHARP_CONF_1);
+               mx3fb_write_reg(mx3fb, 0x00F500F4L, SDC_SHARP_CONF_2);
+               mx3fb_write_reg(mx3fb, SDC_COM_SHARP | SDC_COM_TFT_COLOR, SDC_COM_CONF);
+               break;
+       case IPU_PANEL_TFT:
+               mx3fb_write_reg(mx3fb, SDC_COM_TFT_COLOR, SDC_COM_CONF);
+               break;
+       default:
+               return -EINVAL;
+       }
+
+       /* Init clocking */
+
+       /*
+        * Calculate divider: fractional part is 4 bits so simply multiple by
+        * 24 to get fractional part, as long as we stay under ~250MHz and on
+        * i.MX31 it (HSP_CLK) is <= 178MHz. Currently 128.267MHz
+        */
+       dev_dbg(mx3fb->dev, "pixel clk = %d\n", pixel_clk);
+
+       ipu_clk = clk_get(mx3fb->dev, "ipu_clk");
+       div = clk_get_rate(ipu_clk) * 16 / pixel_clk;
+       clk_put(ipu_clk);
+
+       if (div < 0x40) {       /* Divider less than 4 */
+               dev_dbg(mx3fb->dev,
+                       "InitPanel() - Pixel clock divider less than 4\n");
+               div = 0x40;
+       }
+
+       spin_lock_irqsave(&mx3fb->lock, lock_flags);
+
+       /*
+        * DISP3_IF_CLK_DOWN_WR is half the divider value and 2 fraction bits
+        * fewer. Subtract 1 extra from DISP3_IF_CLK_DOWN_WR based on timing
+        * debug. DISP3_IF_CLK_UP_WR is 0
+        */
+       mx3fb_write_reg(mx3fb, (((div / 8) - 1) << 22) | div, DI_DISP3_TIME_CONF);
+
+       /* DI settings */
+       old_conf = mx3fb_read_reg(mx3fb, DI_DISP_IF_CONF) & 0x78FFFFFF;
+       old_conf |= sig.datamask_en << DI_D3_DATAMSK_SHIFT |
+           sig.clksel_en << DI_D3_CLK_SEL_SHIFT |
+           sig.clkidle_en << DI_D3_CLK_IDLE_SHIFT;
+       mx3fb_write_reg(mx3fb, old_conf, DI_DISP_IF_CONF);
+
+       old_conf = mx3fb_read_reg(mx3fb, DI_DISP_SIG_POL) & 0xE0FFFFFF;
+       old_conf |= sig.data_pol << DI_D3_DATA_POL_SHIFT |
+           sig.clk_pol << DI_D3_CLK_POL_SHIFT |
+           sig.enable_pol << DI_D3_DRDY_SHARP_POL_SHIFT |
+           sig.Hsync_pol << DI_D3_HSYNC_POL_SHIFT |
+           sig.Vsync_pol << DI_D3_VSYNC_POL_SHIFT;
+       mx3fb_write_reg(mx3fb, old_conf, DI_DISP_SIG_POL);
+
+       switch (pixel_fmt) {
+       case IPU_PIX_FMT_RGB24:
+               mx3fb_write_reg(mx3fb, di_mappings[0], DI_DISP3_B0_MAP);
+               mx3fb_write_reg(mx3fb, di_mappings[1], DI_DISP3_B1_MAP);
+               mx3fb_write_reg(mx3fb, di_mappings[2], DI_DISP3_B2_MAP);
+               mx3fb_write_reg(mx3fb, mx3fb_read_reg(mx3fb, DI_DISP_ACC_CC) |
+                            ((di_mappings[3] - 1) << 12), DI_DISP_ACC_CC);
+               break;
+       case IPU_PIX_FMT_RGB666:
+               mx3fb_write_reg(mx3fb, di_mappings[4], DI_DISP3_B0_MAP);
+               mx3fb_write_reg(mx3fb, di_mappings[5], DI_DISP3_B1_MAP);
+               mx3fb_write_reg(mx3fb, di_mappings[6], DI_DISP3_B2_MAP);
+               mx3fb_write_reg(mx3fb, mx3fb_read_reg(mx3fb, DI_DISP_ACC_CC) |
+                            ((di_mappings[7] - 1) << 12), DI_DISP_ACC_CC);
+               break;
+       case IPU_PIX_FMT_BGR666:
+               mx3fb_write_reg(mx3fb, di_mappings[8], DI_DISP3_B0_MAP);
+               mx3fb_write_reg(mx3fb, di_mappings[9], DI_DISP3_B1_MAP);
+               mx3fb_write_reg(mx3fb, di_mappings[10], DI_DISP3_B2_MAP);
+               mx3fb_write_reg(mx3fb, mx3fb_read_reg(mx3fb, DI_DISP_ACC_CC) |
+                            ((di_mappings[11] - 1) << 12), DI_DISP_ACC_CC);
+               break;
+       default:
+               mx3fb_write_reg(mx3fb, di_mappings[12], DI_DISP3_B0_MAP);
+               mx3fb_write_reg(mx3fb, di_mappings[13], DI_DISP3_B1_MAP);
+               mx3fb_write_reg(mx3fb, di_mappings[14], DI_DISP3_B2_MAP);
+               mx3fb_write_reg(mx3fb, mx3fb_read_reg(mx3fb, DI_DISP_ACC_CC) |
+                            ((di_mappings[15] - 1) << 12), DI_DISP_ACC_CC);
+               break;
+       }
+
+       spin_unlock_irqrestore(&mx3fb->lock, lock_flags);
+
+       dev_dbg(mx3fb->dev, "DI_DISP_IF_CONF = 0x%08X\n",
+               mx3fb_read_reg(mx3fb, DI_DISP_IF_CONF));
+       dev_dbg(mx3fb->dev, "DI_DISP_SIG_POL = 0x%08X\n",
+               mx3fb_read_reg(mx3fb, DI_DISP_SIG_POL));
+       dev_dbg(mx3fb->dev, "DI_DISP3_TIME_CONF = 0x%08X\n",
+               mx3fb_read_reg(mx3fb, DI_DISP3_TIME_CONF));
+
+       return 0;
+}
+
+/**
+ * sdc_set_color_key() - set the transparent color key for SDC graphic plane.
+ * @mx3fb:     mx3fb context.
+ * @channel:   IPU DMAC channel ID.
+ * @enable:    boolean to enable or disable color keyl.
+ * @color_key: 24-bit RGB color to use as transparent color key.
+ * @return:    0 on success or negative error code on failure.
+ */
+static int sdc_set_color_key(struct mx3fb_data *mx3fb, enum ipu_channel channel,
+                            bool enable, uint32_t color_key)
+{
+       uint32_t reg, sdc_conf;
+       unsigned long lock_flags;
+
+       spin_lock_irqsave(&mx3fb->lock, lock_flags);
+
+       sdc_conf = mx3fb_read_reg(mx3fb, SDC_COM_CONF);
+       if (channel == IDMAC_SDC_0)
+               sdc_conf &= ~SDC_COM_GWSEL;
+       else
+               sdc_conf |= SDC_COM_GWSEL;
+
+       if (enable) {
+               reg = mx3fb_read_reg(mx3fb, SDC_GW_CTRL) & 0xFF000000L;
+               mx3fb_write_reg(mx3fb, reg | (color_key & 0x00FFFFFFL),
+                            SDC_GW_CTRL);
+
+               sdc_conf |= SDC_COM_KEY_COLOR_G;
+       } else {
+               sdc_conf &= ~SDC_COM_KEY_COLOR_G;
+       }
+       mx3fb_write_reg(mx3fb, sdc_conf, SDC_COM_CONF);
+
+       spin_unlock_irqrestore(&mx3fb->lock, lock_flags);
+
+       return 0;
+}
+
+/**
+ * sdc_set_global_alpha() - set global alpha blending modes.
+ * @mx3fb:     mx3fb context.
+ * @enable:    boolean to enable or disable global alpha blending. If disabled,
+ *             per pixel blending is used.
+ * @alpha:     global alpha value.
+ * @return:    0 on success or negative error code on failure.
+ */
+static int sdc_set_global_alpha(struct mx3fb_data *mx3fb, bool enable, uint8_t alpha)
+{
+       uint32_t reg;
+       unsigned long lock_flags;
+
+       spin_lock_irqsave(&mx3fb->lock, lock_flags);
+
+       if (enable) {
+               reg = mx3fb_read_reg(mx3fb, SDC_GW_CTRL) & 0x00FFFFFFL;
+               mx3fb_write_reg(mx3fb, reg | ((uint32_t) alpha << 24), SDC_GW_CTRL);
+
+               reg = mx3fb_read_reg(mx3fb, SDC_COM_CONF);
+               mx3fb_write_reg(mx3fb, reg | SDC_COM_GLB_A, SDC_COM_CONF);
+       } else {
+               reg = mx3fb_read_reg(mx3fb, SDC_COM_CONF);
+               mx3fb_write_reg(mx3fb, reg & ~SDC_COM_GLB_A, SDC_COM_CONF);
+       }
+
+       spin_unlock_irqrestore(&mx3fb->lock, lock_flags);
+
+       return 0;
+}
+
+static void sdc_set_brightness(struct mx3fb_data *mx3fb, uint8_t value)
+{
+       /* This might be board-specific */
+       mx3fb_write_reg(mx3fb, 0x03000000UL | value << 16, SDC_PWM_CTRL);
+       return;
+}
+
+static uint32_t bpp_to_pixfmt(int bpp)
+{
+       uint32_t pixfmt = 0;
+       switch (bpp) {
+       case 24:
+               pixfmt = IPU_PIX_FMT_BGR24;
+               break;
+       case 32:
+               pixfmt = IPU_PIX_FMT_BGR32;
+               break;
+       case 16:
+               pixfmt = IPU_PIX_FMT_RGB565;
+               break;
+       }
+       return pixfmt;
+}
+
+static int mx3fb_blank(int blank, struct fb_info *fbi);
+static int mx3fb_map_video_memory(struct fb_info *fbi);
+static int mx3fb_unmap_video_memory(struct fb_info *fbi);
+
+/**
+ * mx3fb_set_fix() - set fixed framebuffer parameters from variable settings.
+ * @info:      framebuffer information pointer
+ * @return:    0 on success or negative error code on failure.
+ */
+static int mx3fb_set_fix(struct fb_info *fbi)
+{
+       struct fb_fix_screeninfo *fix = &fbi->fix;
+       struct fb_var_screeninfo *var = &fbi->var;
+
+       strncpy(fix->id, "DISP3 BG", 8);
+
+       fix->line_length = var->xres_virtual * var->bits_per_pixel / 8;
+
+       fix->type = FB_TYPE_PACKED_PIXELS;
+       fix->accel = FB_ACCEL_NONE;
+       fix->visual = FB_VISUAL_TRUECOLOR;
+       fix->xpanstep = 1;
+       fix->ypanstep = 1;
+
+       return 0;
+}
+
+static void mx3fb_dma_done(void *arg)
+{
+       struct idmac_tx_desc *tx_desc = to_tx_desc(arg);
+       struct dma_chan *chan = tx_desc->txd.chan;
+       struct idmac_channel *ichannel = to_idmac_chan(chan);
+       struct mx3fb_data *mx3fb = ichannel->client;
+       struct mx3fb_info *mx3_fbi = mx3fb->fbi->par;
+
+       dev_dbg(mx3fb->dev, "irq %d callback\n", ichannel->eof_irq);
+
+       /* We only need one interrupt, it will be re-enabled as needed */
+       disable_irq(ichannel->eof_irq);
+
+       complete(&mx3_fbi->flip_cmpl);
+}
+
+/**
+ * mx3fb_set_par() - set framebuffer parameters and change the operating mode.
+ * @fbi:       framebuffer information pointer.
+ * @return:    0 on success or negative error code on failure.
+ */
+static int mx3fb_set_par(struct fb_info *fbi)
+{
+       u32 mem_len;
+       struct ipu_di_signal_cfg sig_cfg;
+       enum ipu_panel mode = IPU_PANEL_TFT;
+       struct mx3fb_info *mx3_fbi = fbi->par;
+       struct mx3fb_data *mx3fb = mx3_fbi->mx3fb;
+       struct idmac_channel *ichan = mx3_fbi->idmac_channel;
+       struct idmac_video_param *video = &ichan->params.video;
+       struct scatterlist *sg = mx3_fbi->sg;
+       size_t screen_size;
+
+       dev_dbg(mx3fb->dev, "%s [%c]\n", __func__, list_empty(&ichan->queue) ? '-' : '+');
+
+       mutex_lock(&mx3_fbi->mutex);
+
+       /* Total cleanup */
+       if (mx3_fbi->txd)
+               sdc_disable_channel(mx3_fbi);
+
+       mx3fb_set_fix(fbi);
+
+       mem_len = fbi->var.yres_virtual * fbi->fix.line_length;
+       if (mem_len > fbi->fix.smem_len) {
+               if (fbi->fix.smem_start)
+                       mx3fb_unmap_video_memory(fbi);
+
+               fbi->fix.smem_len = mem_len;
+               if (mx3fb_map_video_memory(fbi) < 0) {
+                       mutex_unlock(&mx3_fbi->mutex);
+                       return -ENOMEM;
+               }
+       }
+
+       screen_size = fbi->fix.line_length * fbi->var.yres;
+
+       sg_init_table(&sg[0], 1);
+       sg_init_table(&sg[1], 1);
+
+       sg_dma_address(&sg[0])  = fbi->fix.smem_start;
+       sg_set_page(&sg[0], virt_to_page(fbi->screen_base),
+                   fbi->fix.smem_len,
+                   offset_in_page(fbi->screen_base));
+
+       if (mx3_fbi->ipu_ch == IDMAC_SDC_0) {
+               memset(&sig_cfg, 0, sizeof(sig_cfg));
+               if (fbi->var.sync & FB_SYNC_HOR_HIGH_ACT)
+                       sig_cfg.Hsync_pol = true;
+               if (fbi->var.sync & FB_SYNC_VERT_HIGH_ACT)
+                       sig_cfg.Vsync_pol = true;
+               if (fbi->var.sync & FB_SYNC_CLK_INVERT)
+                       sig_cfg.clk_pol = true;
+               if (fbi->var.sync & FB_SYNC_DATA_INVERT)
+                       sig_cfg.data_pol = true;
+               if (fbi->var.sync & FB_SYNC_OE_ACT_HIGH)
+                       sig_cfg.enable_pol = true;
+               if (fbi->var.sync & FB_SYNC_CLK_IDLE_EN)
+                       sig_cfg.clkidle_en = true;
+               if (fbi->var.sync & FB_SYNC_CLK_SEL_EN)
+                       sig_cfg.clksel_en = true;
+               if (fbi->var.sync & FB_SYNC_SHARP_MODE)
+                       mode = IPU_PANEL_SHARP_TFT;
+
+               dev_dbg(fbi->device, "pixclock = %ul Hz\n",
+                       (u32) (PICOS2KHZ(fbi->var.pixclock) * 1000UL));
+
+               if (sdc_init_panel(mx3fb, mode,
+                                  (PICOS2KHZ(fbi->var.pixclock)) * 1000UL,
+                                  fbi->var.xres, fbi->var.yres,
+                                  (fbi->var.sync & FB_SYNC_SWAP_RGB) ?
+                                  IPU_PIX_FMT_BGR666 : IPU_PIX_FMT_RGB666,
+                                  fbi->var.left_margin,
+                                  fbi->var.hsync_len,
+                                  fbi->var.right_margin +
+                                  fbi->var.hsync_len,
+                                  fbi->var.upper_margin,
+                                  fbi->var.vsync_len,
+                                  fbi->var.lower_margin +
+                                  fbi->var.vsync_len, sig_cfg) != 0) {
+                       mutex_unlock(&mx3_fbi->mutex);
+                       dev_err(fbi->device,
+                               "mx3fb: Error initializing panel.\n");
+                       return -EINVAL;
+               }
+       }
+
+       sdc_set_window_pos(mx3fb, mx3_fbi->ipu_ch, 0, 0);
+
+       mx3_fbi->cur_ipu_buf    = 0;
+
+       video->out_pixel_fmt    = bpp_to_pixfmt(fbi->var.bits_per_pixel);
+       video->out_width        = fbi->var.xres;
+       video->out_height       = fbi->var.yres;
+       video->out_stride       = fbi->var.xres_virtual;
+
+       if (mx3_fbi->blank == FB_BLANK_UNBLANK)
+               sdc_enable_channel(mx3_fbi);
+
+       mutex_unlock(&mx3_fbi->mutex);
+
+       return 0;
+}
+
+/**
+ * mx3fb_check_var() - check and adjust framebuffer variable parameters.
+ * @var:       framebuffer variable parameters
+ * @fbi:       framebuffer information pointer
+ */
+static int mx3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi)
+{
+       struct mx3fb_info *mx3_fbi = fbi->par;
+       u32 vtotal;
+       u32 htotal;
+
+       dev_dbg(fbi->device, "%s\n", __func__);
+
+       if (var->xres_virtual < var->xres)
+               var->xres_virtual = var->xres;
+       if (var->yres_virtual < var->yres)
+               var->yres_virtual = var->yres;
+
+       if ((var->bits_per_pixel != 32) && (var->bits_per_pixel != 24) &&
+           (var->bits_per_pixel != 16))
+               var->bits_per_pixel = default_bpp;
+
+       switch (var->bits_per_pixel) {
+       case 16:
+               var->red.length = 5;
+               var->red.offset = 11;
+               var->red.msb_right = 0;
+
+               var->green.length = 6;
+               var->green.offset = 5;
+               var->green.msb_right = 0;
+
+               var->blue.length = 5;
+               var->blue.offset = 0;
+               var->blue.msb_right = 0;
+
+               var->transp.length = 0;
+               var->transp.offset = 0;
+               var->transp.msb_right = 0;
+               break;
+       case 24:
+               var->red.length = 8;
+               var->red.offset = 16;
+               var->red.msb_right = 0;
+
+               var->green.length = 8;
+               var->green.offset = 8;
+               var->green.msb_right = 0;
+
+               var->blue.length = 8;
+               var->blue.offset = 0;
+               var->blue.msb_right = 0;
+
+               var->transp.length = 0;
+               var->transp.offset = 0;
+               var->transp.msb_right = 0;
+               break;
+       case 32:
+               var->red.length = 8;
+               var->red.offset = 16;
+               var->red.msb_right = 0;
+
+               var->green.length = 8;
+               var->green.offset = 8;
+               var->green.msb_right = 0;
+
+               var->blue.length = 8;
+               var->blue.offset = 0;
+               var->blue.msb_right = 0;
+
+               var->transp.length = 8;
+               var->transp.offset = 24;
+               var->transp.msb_right = 0;
+               break;
+       }
+
+       if (var->pixclock < 1000) {
+               htotal = var->xres + var->right_margin + var->hsync_len +
+                   var->left_margin;
+               vtotal = var->yres + var->lower_margin + var->vsync_len +
+                   var->upper_margin;
+               var->pixclock = (vtotal * htotal * 6UL) / 100UL;
+               var->pixclock = KHZ2PICOS(var->pixclock);
+               dev_dbg(fbi->device, "pixclock set for 60Hz refresh = %u ps\n",
+                       var->pixclock);
+       }
+
+       var->height = -1;
+       var->width = -1;
+       var->grayscale = 0;
+
+       /* Preserve sync flags */
+       var->sync |= mx3_fbi->sync;
+       mx3_fbi->sync |= var->sync;
+
+       return 0;
+}
+
+static u32 chan_to_field(unsigned int chan, struct fb_bitfield *bf)
+{
+       chan &= 0xffff;
+       chan >>= 16 - bf->length;
+       return chan << bf->offset;
+}
+
+static int mx3fb_setcolreg(unsigned int regno, unsigned int red,
+                          unsigned int green, unsigned int blue,
+                          unsigned int trans, struct fb_info *fbi)
+{
+       struct mx3fb_info *mx3_fbi = fbi->par;
+       u32 val;
+       int ret = 1;
+
+       dev_dbg(fbi->device, "%s\n", __func__);
+
+       mutex_lock(&mx3_fbi->mutex);
+       /*
+        * If greyscale is true, then we convert the RGB value
+        * to greyscale no matter what visual we are using.
+        */
+       if (fbi->var.grayscale)
+               red = green = blue = (19595 * red + 38470 * green +
+                                     7471 * blue) >> 16;
+       switch (fbi->fix.visual) {
+       case FB_VISUAL_TRUECOLOR:
+               /*
+                * 16-bit True Colour.  We encode the RGB value
+                * according to the RGB bitfield information.
+                */
+               if (regno < 16) {
+                       u32 *pal = fbi->pseudo_palette;
+
+                       val = chan_to_field(red, &fbi->var.red);
+                       val |= chan_to_field(green, &fbi->var.green);
+                       val |= chan_to_field(blue, &fbi->var.blue);
+
+                       pal[regno] = val;
+
+                       ret = 0;
+               }
+               break;
+
+       case FB_VISUAL_STATIC_PSEUDOCOLOR:
+       case FB_VISUAL_PSEUDOCOLOR:
+               break;
+       }
+       mutex_unlock(&mx3_fbi->mutex);
+
+       return ret;
+}
+
+/**
+ * mx3fb_blank() - blank the display.
+ */
+static int mx3fb_blank(int blank, struct fb_info *fbi)
+{
+       struct mx3fb_info *mx3_fbi = fbi->par;
+       struct mx3fb_data *mx3fb = mx3_fbi->mx3fb;
+
+       dev_dbg(fbi->device, "%s\n", __func__);
+
+       dev_dbg(fbi->device, "blank = %d\n", blank);
+
+       if (mx3_fbi->blank == blank)
+               return 0;
+
+       mutex_lock(&mx3_fbi->mutex);
+       mx3_fbi->blank = blank;
+
+       switch (blank) {
+       case FB_BLANK_POWERDOWN:
+       case FB_BLANK_VSYNC_SUSPEND:
+       case FB_BLANK_HSYNC_SUSPEND:
+       case FB_BLANK_NORMAL:
+               sdc_disable_channel(mx3_fbi);
+               sdc_set_brightness(mx3fb, 0);
+               break;
+       case FB_BLANK_UNBLANK:
+               sdc_enable_channel(mx3_fbi);
+               sdc_set_brightness(mx3fb, mx3fb->backlight_level);
+               break;
+       }
+       mutex_unlock(&mx3_fbi->mutex);
+
+       return 0;
+}
+
+/**
+ * mx3fb_pan_display() - pan or wrap the display
+ * @var:       variable screen buffer information.
+ * @info:      framebuffer information pointer.
+ *
+ * We look only at xoffset, yoffset and the FB_VMODE_YWRAP flag
+ */
+static int mx3fb_pan_display(struct fb_var_screeninfo *var,
+                            struct fb_info *fbi)
+{
+       struct mx3fb_info *mx3_fbi = fbi->par;
+       u32 y_bottom;
+       unsigned long base;
+       off_t offset;
+       dma_cookie_t cookie;
+       struct scatterlist *sg = mx3_fbi->sg;
+       struct dma_chan *dma_chan = &mx3_fbi->idmac_channel->dma_chan;
+       struct dma_async_tx_descriptor *txd;
+       int ret;
+
+       dev_dbg(fbi->device, "%s [%c]\n", __func__,
+               list_empty(&mx3_fbi->idmac_channel->queue) ? '-' : '+');
+
+       if (var->xoffset > 0) {
+               dev_dbg(fbi->device, "x panning not supported\n");
+               return -EINVAL;
+       }
+
+       if (fbi->var.xoffset == var->xoffset &&
+           fbi->var.yoffset == var->yoffset)
+               return 0;       /* No change, do nothing */
+
+       y_bottom = var->yoffset;
+
+       if (!(var->vmode & FB_VMODE_YWRAP))
+               y_bottom += var->yres;
+
+       if (y_bottom > fbi->var.yres_virtual)
+               return -EINVAL;
+
+       mutex_lock(&mx3_fbi->mutex);
+
+       offset = (var->yoffset * var->xres_virtual + var->xoffset) *
+               (var->bits_per_pixel / 8);
+       base = fbi->fix.smem_start + offset;
+
+       dev_dbg(fbi->device, "Updating SDC BG buf %d address=0x%08lX\n",
+               mx3_fbi->cur_ipu_buf, base);
+
+       /*
+        * We enable the End of Frame interrupt, which will free a tx-descriptor,
+        * which we will need for the next device_prep_slave_sg(). The
+        * IRQ-handler will disable the IRQ again.
+        */
+       init_completion(&mx3_fbi->flip_cmpl);
+       enable_irq(mx3_fbi->idmac_channel->eof_irq);
+
+       ret = wait_for_completion_timeout(&mx3_fbi->flip_cmpl, HZ / 10);
+       if (ret <= 0) {
+               mutex_unlock(&mx3_fbi->mutex);
+               dev_info(fbi->device, "Panning failed due to %s\n", ret < 0 ?
+                        "user interrupt" : "timeout");
+               return ret ? : -ETIMEDOUT;
+       }
+
+       mx3_fbi->cur_ipu_buf = !mx3_fbi->cur_ipu_buf;
+
+       sg_dma_address(&sg[mx3_fbi->cur_ipu_buf]) = base;
+       sg_set_page(&sg[mx3_fbi->cur_ipu_buf],
+                   virt_to_page(fbi->screen_base + offset), fbi->fix.smem_len,
+                   offset_in_page(fbi->screen_base + offset));
+
+       txd = dma_chan->device->device_prep_slave_sg(dma_chan, sg +
+               mx3_fbi->cur_ipu_buf, 1, DMA_TO_DEVICE, DMA_PREP_INTERRUPT);
+       if (!txd) {
+               dev_err(fbi->device,
+                       "Error preparing a DMA transaction descriptor.\n");
+               mutex_unlock(&mx3_fbi->mutex);
+               return -EIO;
+       }
+
+       txd->callback_param     = txd;
+       txd->callback           = mx3fb_dma_done;
+
+       /*
+        * Emulate original mx3fb behaviour: each new call to idmac_tx_submit()
+        * should switch to another buffer
+        */
+       cookie = txd->tx_submit(txd);
+       dev_dbg(fbi->device, "%d: Submit %p #%d\n", __LINE__, txd, cookie);
+       if (cookie < 0) {
+               dev_err(fbi->device,
+                       "Error updating SDC buf %d to address=0x%08lX\n",
+                       mx3_fbi->cur_ipu_buf, base);
+               mutex_unlock(&mx3_fbi->mutex);
+               return -EIO;
+       }
+
+       if (mx3_fbi->txd)
+               async_tx_ack(mx3_fbi->txd);
+       mx3_fbi->txd = txd;
+
+       fbi->var.xoffset = var->xoffset;
+       fbi->var.yoffset = var->yoffset;
+
+       if (var->vmode & FB_VMODE_YWRAP)
+               fbi->var.vmode |= FB_VMODE_YWRAP;
+       else
+               fbi->var.vmode &= ~FB_VMODE_YWRAP;
+
+       mutex_unlock(&mx3_fbi->mutex);
+
+       dev_dbg(fbi->device, "Update complete\n");
+
+       return 0;
+}
+
+/*
+ * This structure contains the pointers to the control functions that are
+ * invoked by the core framebuffer driver to perform operations like
+ * blitting, rectangle filling, copy regions and cursor definition.
+ */
+static struct fb_ops mx3fb_ops = {
+       .owner = THIS_MODULE,
+       .fb_set_par = mx3fb_set_par,
+       .fb_check_var = mx3fb_check_var,
+       .fb_setcolreg = mx3fb_setcolreg,
+       .fb_pan_display = mx3fb_pan_display,
+       .fb_fillrect = cfb_fillrect,
+       .fb_copyarea = cfb_copyarea,
+       .fb_imageblit = cfb_imageblit,
+       .fb_blank = mx3fb_blank,
+};
+
+#ifdef CONFIG_PM
+/*
+ * Power management hooks.      Note that we won't be called from IRQ context,
+ * unlike the blank functions above, so we may sleep.
+ */
+
+/*
+ * Suspends the framebuffer and blanks the screen. Power management support
+ */
+static int mx3fb_suspend(struct platform_device *pdev, pm_message_t state)
+{
+       struct mx3fb_data *drv_data = platform_get_drvdata(pdev);
+       struct mx3fb_info *mx3_fbi = drv_data->fbi->par;
+
+       acquire_console_sem();
+       fb_set_suspend(drv_data->fbi, 1);
+       release_console_sem();
+
+       if (mx3_fbi->blank == FB_BLANK_UNBLANK) {
+               sdc_disable_channel(mx3_fbi);
+               sdc_set_brightness(mx3fb, 0);
+
+       }
+       return 0;
+}
+
+/*
+ * Resumes the framebuffer and unblanks the screen. Power management support
+ */
+static int mx3fb_resume(struct platform_device *pdev)
+{
+       struct mx3fb_data *drv_data = platform_get_drvdata(pdev);
+       struct mx3fb_info *mx3_fbi = drv_data->fbi->par;
+
+       if (mx3_fbi->blank == FB_BLANK_UNBLANK) {
+               sdc_enable_channel(mx3_fbi);
+               sdc_set_brightness(mx3fb, drv_data->backlight_level);
+       }
+
+       acquire_console_sem();
+       fb_set_suspend(drv_data->fbi, 0);
+       release_console_sem();
+
+       return 0;
+}
+#else
+#define mx3fb_suspend   NULL
+#define mx3fb_resume    NULL
+#endif
+
+/*
+ * Main framebuffer functions
+ */
+
+/**
+ * mx3fb_map_video_memory() - allocates the DRAM memory for the frame buffer.
+ * @fbi:       framebuffer information pointer
+ * @return:    Error code indicating success or failure
+ *
+ * This buffer is remapped into a non-cached, non-buffered, memory region to
+ * allow palette and pixel writes to occur without flushing the cache. Once this
+ * area is remapped, all virtual memory access to the video memory should occur
+ * at the new region.
+ */
+static int mx3fb_map_video_memory(struct fb_info *fbi)
+{
+       int retval = 0;
+       dma_addr_t addr;
+
+       fbi->screen_base = dma_alloc_writecombine(fbi->device,
+                                                 fbi->fix.smem_len,
+                                                 &addr, GFP_DMA);
+
+       if (!fbi->screen_base) {
+               dev_err(fbi->device, "Cannot allocate %u bytes framebuffer memory\n",
+                       fbi->fix.smem_len);
+               retval = -EBUSY;
+               goto err0;
+       }
+
+       fbi->fix.smem_start = addr;
+
+       dev_dbg(fbi->device, "allocated fb @ p=0x%08x, v=0x%p, size=%d.\n",
+               (uint32_t) fbi->fix.smem_start, fbi->screen_base, fbi->fix.smem_len);
+
+       fbi->screen_size = fbi->fix.smem_len;
+
+       /* Clear the screen */
+       memset((char *)fbi->screen_base, 0, fbi->fix.smem_len);
+
+       return 0;
+
+err0:
+       fbi->fix.smem_len = 0;
+       fbi->fix.smem_start = 0;
+       fbi->screen_base = NULL;
+       return retval;
+}
+
+/**
+ * mx3fb_unmap_video_memory() - de-allocate frame buffer memory.
+ * @fbi:       framebuffer information pointer
+ * @return:    error code indicating success or failure
+ */
+static int mx3fb_unmap_video_memory(struct fb_info *fbi)
+{
+       dma_free_writecombine(fbi->device, fbi->fix.smem_len,
+                             fbi->screen_base, fbi->fix.smem_start);
+
+       fbi->screen_base = 0;
+       fbi->fix.smem_start = 0;
+       fbi->fix.smem_len = 0;
+       return 0;
+}
+
+/**
+ * mx3fb_init_fbinfo() - initialize framebuffer information object.
+ * @return:    initialized framebuffer structure.
+ */
+static struct fb_info *mx3fb_init_fbinfo(struct device *dev, struct fb_ops *ops)
+{
+       struct fb_info *fbi;
+       struct mx3fb_info *mx3fbi;
+       int ret;
+
+       /* Allocate sufficient memory for the fb structure */
+       fbi = framebuffer_alloc(sizeof(struct mx3fb_info), dev);
+       if (!fbi)
+               return NULL;
+
+       mx3fbi                  = fbi->par;
+       mx3fbi->cookie          = -EINVAL;
+       mx3fbi->cur_ipu_buf     = 0;
+
+       fbi->var.activate       = FB_ACTIVATE_NOW;
+
+       fbi->fbops              = ops;
+       fbi->flags              = FBINFO_FLAG_DEFAULT;
+       fbi->pseudo_palette     = mx3fbi->pseudo_palette;
+
+       mutex_init(&mx3fbi->mutex);
+
+       /* Allocate colormap */
+       ret = fb_alloc_cmap(&fbi->cmap, 16, 0);
+       if (ret < 0) {
+               framebuffer_release(fbi);
+               return NULL;
+       }
+
+       return fbi;
+}
+
+static int init_fb_chan(struct mx3fb_data *mx3fb, struct idmac_channel *ichan)
+{
+       struct device *dev = mx3fb->dev;
+       struct mx3fb_platform_data *mx3fb_pdata = dev->platform_data;
+       const char *name = mx3fb_pdata->name;
+       unsigned int irq;
+       struct fb_info *fbi;
+       struct mx3fb_info *mx3fbi;
+       const struct fb_videomode *mode;
+       int ret, num_modes;
+
+       ichan->client = mx3fb;
+       irq = ichan->eof_irq;
+
+       if (ichan->dma_chan.chan_id != IDMAC_SDC_0)
+               return -EINVAL;
+
+       fbi = mx3fb_init_fbinfo(dev, &mx3fb_ops);
+       if (!fbi)
+               return -ENOMEM;
+
+       if (!fb_mode)
+               fb_mode = name;
+
+       if (!fb_mode) {
+               ret = -EINVAL;
+               goto emode;
+       }
+
+       if (mx3fb_pdata->mode && mx3fb_pdata->num_modes) {
+               mode = mx3fb_pdata->mode;
+               num_modes = mx3fb_pdata->num_modes;
+       } else {
+               mode = mx3fb_modedb;
+               num_modes = ARRAY_SIZE(mx3fb_modedb);
+       }
+
+       if (!fb_find_mode(&fbi->var, fbi, fb_mode, mode,
+                         num_modes, NULL, default_bpp)) {
+               ret = -EBUSY;
+               goto emode;
+       }
+
+       fb_videomode_to_modelist(mode, num_modes, &fbi->modelist);
+
+       /* Default Y virtual size is 2x panel size */
+       fbi->var.yres_virtual = fbi->var.yres * 2;
+
+       mx3fb->fbi = fbi;
+
+       /* set Display Interface clock period */
+       mx3fb_write_reg(mx3fb, 0x00100010L, DI_HSP_CLK_PER);
+       /* Might need to trigger HSP clock change - see 44.3.3.8.5 */
+
+       sdc_set_brightness(mx3fb, 255);
+       sdc_set_global_alpha(mx3fb, true, 0xFF);
+       sdc_set_color_key(mx3fb, IDMAC_SDC_0, false, 0);
+
+       mx3fbi                  = fbi->par;
+       mx3fbi->idmac_channel   = ichan;
+       mx3fbi->ipu_ch          = ichan->dma_chan.chan_id;
+       mx3fbi->mx3fb           = mx3fb;
+       mx3fbi->blank           = FB_BLANK_NORMAL;
+
+       init_completion(&mx3fbi->flip_cmpl);
+       disable_irq(ichan->eof_irq);
+       dev_dbg(mx3fb->dev, "disabling irq %d\n", ichan->eof_irq);
+       ret = mx3fb_set_par(fbi);
+       if (ret < 0)
+               goto esetpar;
+
+       mx3fb_blank(FB_BLANK_UNBLANK, fbi);
+
+       dev_info(dev, "mx3fb: fb registered, using mode %s\n", fb_mode);
+
+       ret = register_framebuffer(fbi);
+       if (ret < 0)
+               goto erfb;
+
+       return 0;
+
+erfb:
+esetpar:
+emode:
+       fb_dealloc_cmap(&fbi->cmap);
+       framebuffer_release(fbi);
+
+       return ret;
+}
+
+static bool chan_filter(struct dma_chan *chan, void *arg)
+{
+       struct dma_chan_request *rq = arg;
+       struct device *dev;
+       struct mx3fb_platform_data *mx3fb_pdata;
+
+       if (!rq)
+               return false;
+
+       dev = rq->mx3fb->dev;
+       mx3fb_pdata = dev->platform_data;
+
+       return rq->id == chan->chan_id &&
+               mx3fb_pdata->dma_dev == chan->device->dev;
+}
+
+static void release_fbi(struct fb_info *fbi)
+{
+       mx3fb_unmap_video_memory(fbi);
+
+       fb_dealloc_cmap(&fbi->cmap);
+
+       unregister_framebuffer(fbi);
+       framebuffer_release(fbi);
+}
+
+static int mx3fb_probe(struct platform_device *pdev)
+{
+       struct device *dev = &pdev->dev;
+       int ret;
+       struct resource *sdc_reg;
+       struct mx3fb_data *mx3fb;
+       dma_cap_mask_t mask;
+       struct dma_chan *chan;
+       struct dma_chan_request rq;
+
+       /*
+        * Display Interface (DI) and Synchronous Display Controller (SDC)
+        * registers
+        */
+       sdc_reg = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+       if (!sdc_reg)
+               return -EINVAL;
+
+       mx3fb = kzalloc(sizeof(*mx3fb), GFP_KERNEL);
+       if (!mx3fb)
+               return -ENOMEM;
+
+       spin_lock_init(&mx3fb->lock);
+
+       mx3fb->reg_base = ioremap(sdc_reg->start, resource_size(sdc_reg));
+       if (!mx3fb->reg_base) {
+               ret = -ENOMEM;
+               goto eremap;
+       }
+
+       pr_debug("Remapped %x to %x at %p\n", sdc_reg->start, sdc_reg->end,
+                mx3fb->reg_base);
+
+       /* IDMAC interface */
+       dmaengine_get();
+
+       mx3fb->dev = dev;
+       platform_set_drvdata(pdev, mx3fb);
+
+       rq.mx3fb = mx3fb;
+
+       dma_cap_zero(mask);
+       dma_cap_set(DMA_SLAVE, mask);
+       dma_cap_set(DMA_PRIVATE, mask);
+       rq.id = IDMAC_SDC_0;
+       chan = dma_request_channel(mask, chan_filter, &rq);
+       if (!chan) {
+               ret = -EBUSY;
+               goto ersdc0;
+       }
+
+       ret = init_fb_chan(mx3fb, to_idmac_chan(chan));
+       if (ret < 0)
+               goto eisdc0;
+
+       mx3fb->backlight_level = 255;
+
+       return 0;
+
+eisdc0:
+       dma_release_channel(chan);
+ersdc0:
+       dmaengine_put();
+       iounmap(mx3fb->reg_base);
+eremap:
+       kfree(mx3fb);
+       dev_err(dev, "mx3fb: failed to register fb\n");
+       return ret;
+}
+
+static int mx3fb_remove(struct platform_device *dev)
+{
+       struct mx3fb_data *mx3fb = platform_get_drvdata(dev);
+       struct fb_info *fbi = mx3fb->fbi;
+       struct mx3fb_info *mx3_fbi = fbi->par;
+       struct dma_chan *chan;
+
+       chan = &mx3_fbi->idmac_channel->dma_chan;
+       release_fbi(fbi);
+
+       dma_release_channel(chan);
+       dmaengine_put();
+
+       iounmap(mx3fb->reg_base);
+       kfree(mx3fb);
+       return 0;
+}
+
+static struct platform_driver mx3fb_driver = {
+       .driver = {
+                  .name = MX3FB_NAME,
+       },
+       .probe = mx3fb_probe,
+       .remove = mx3fb_remove,
+       .suspend = mx3fb_suspend,
+       .resume = mx3fb_resume,
+};
+
+/*
+ * Parse user specified options (`video=mx3fb:')
+ * example:
+ *     video=mx3fb:bpp=16
+ */
+static int mx3fb_setup(void)
+{
+#ifndef MODULE
+       char *opt, *options = NULL;
+
+       if (fb_get_options("mx3fb", &options))
+               return -ENODEV;
+
+       if (!options || !*options)
+               return 0;
+
+       while ((opt = strsep(&options, ",")) != NULL) {
+               if (!*opt)
+                       continue;
+               if (!strncmp(opt, "bpp=", 4))
+                       default_bpp = simple_strtoul(opt + 4, NULL, 0);
+               else
+                       fb_mode = opt;
+       }
+#endif
+
+       return 0;
+}
+
+static int __init mx3fb_init(void)
+{
+       int ret = mx3fb_setup();
+
+       if (ret < 0)
+               return ret;
+
+       ret = platform_driver_register(&mx3fb_driver);
+       return ret;
+}
+
+static void __exit mx3fb_exit(void)
+{
+       platform_driver_unregister(&mx3fb_driver);
+}
+
+module_init(mx3fb_init);
+module_exit(mx3fb_exit);
+
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("MX3 framebuffer driver");
+MODULE_ALIAS("platform:" MX3FB_NAME);
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/video/nvidia/nv_i2c.c b/drivers/video/nvidia/nv_i2c.c
index 6fd7cb8f9b8e..6aaddb4f6788 100644
--- a/drivers/video/nvidia/nv_i2c.c
+++ b/drivers/video/nvidia/nv_i2c.c
@@ -87,7 +87,6 @@ static int nvidia_setup_i2c_bus(struct nvidia_i2c_chan *chan, const char *name,
 
         strcpy(chan->adapter.name, name);
         chan->adapter.owner = THIS_MODULE;
-        chan->adapter.id = I2C_HW_B_NVIDIA;
         chan->adapter.class = i2c_class;
         chan->adapter.algo_data = &chan->algo;
         chan->adapter.dev.parent = &chan->par->pci_dev->dev;
diff --git a/drivers/video/omap/lcdc.c b/drivers/video/omap/lcdc.c
index 6e2ea7518761..ab3949256677 100644
--- a/drivers/video/omap/lcdc.c
+++ b/drivers/video/omap/lcdc.c
@@ -800,14 +800,14 @@ static int omap_lcdc_init(struct omapfb_device *fbdev, int ext_mode,
         /* FIXME:
          * According to errata some platforms have a clock rate limitiation
          */
-        lcdc.lcd_ck = clk_get(NULL, "lcd_ck");
+        lcdc.lcd_ck = clk_get(fbdev->dev, "lcd_ck");
         if (IS_ERR(lcdc.lcd_ck)) {
                 dev_err(fbdev->dev, "unable to access LCD clock\n");
                 r = PTR_ERR(lcdc.lcd_ck);
                 goto fail0;
         }
 
-        tc_ck = clk_get(NULL, "tc_ck");
+        tc_ck = clk_get(fbdev->dev, "tc_ck");
         if (IS_ERR(tc_ck)) {
                 dev_err(fbdev->dev, "unable to access TC clock\n");
                 r = PTR_ERR(tc_ck);
diff --git a/drivers/video/savage/savagefb-i2c.c b/drivers/video/savage/savagefb-i2c.c
index 783d4adffb93..574b29e9f8f2 100644
--- a/drivers/video/savage/savagefb-i2c.c
+++ b/drivers/video/savage/savagefb-i2c.c
@@ -137,7 +137,6 @@ static int savage_setup_i2c_bus(struct savagefb_i2c_chan *chan,
         if (chan->par) {
                 strcpy(chan->adapter.name, name);
                 chan->adapter.owner             = THIS_MODULE;
-                chan->adapter.id                = I2C_HW_B_SAVAGE;
                 chan->adapter.algo_data         = &chan->algo;
                 chan->adapter.dev.parent        = &chan->par->pcidev->dev;
                 chan->algo.udelay               = 10;
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 3efa12f9ee50..09a3d5522b43 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -187,10 +187,10 @@ config EP93XX_WATCHDOG
 
 config OMAP_WATCHDOG
         tristate "OMAP Watchdog"
-        depends on ARCH_OMAP16XX || ARCH_OMAP24XX
+        depends on ARCH_OMAP16XX || ARCH_OMAP24XX || ARCH_OMAP34XX
         help
-          Support for TI OMAP1610/OMAP1710/OMAP2420 watchdog.  Say 'Y' here to
-          enable the OMAP1610/OMAP1710 watchdog timer.
+          Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430 watchdog.  Say 'Y'
+          here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430 watchdog timer.
 
 config PNX4008_WATCHDOG
         tristate "PNX4008 Watchdog"
diff --git a/drivers/watchdog/at91rm9200_wdt.c b/drivers/watchdog/at91rm9200_wdt.c
index 993e5f52afef..5531691f46ea 100644
--- a/drivers/watchdog/at91rm9200_wdt.c
+++ b/drivers/watchdog/at91rm9200_wdt.c
@@ -13,6 +13,7 @@
 #include <linux/errno.h>
 #include <linux/fs.h>
 #include <linux/init.h>
+#include <linux/io.h>
 #include <linux/kernel.h>
 #include <linux/miscdevice.h>
 #include <linux/module.h>
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index 8dc7109d61b7..2ba8f95516a0 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -298,6 +298,14 @@ static int decrease_reservation(unsigned long nr_pages)
                 frame_list[i] = pfn_to_mfn(pfn);
 
                 scrub_page(page);
+
+                if (!PageHighMem(page)) {
+                        ret = HYPERVISOR_update_va_mapping(
+                                (unsigned long)__va(pfn << PAGE_SHIFT),
+                                __pte_ma(0), 0);
+                        BUG_ON(ret);
+                }
+
         }
 
         /* Ensure that ballooned highmem pages don't have kmaps. */
diff --git a/drivers/xen/xenfs/xenbus.c b/drivers/xen/xenfs/xenbus.c
index 875a4c59c594..a9592d981b10 100644
--- a/drivers/xen/xenfs/xenbus.c
+++ b/drivers/xen/xenfs/xenbus.c
@@ -291,7 +291,7 @@ static void watch_fired(struct xenbus_watch *watch,
 static int xenbus_write_transaction(unsigned msg_type,
                                     struct xenbus_file_priv *u)
 {
-        int rc, ret;
+        int rc;
         void *reply;
         struct xenbus_transaction_holder *trans = NULL;
         LIST_HEAD(staging_q);
@@ -326,15 +326,14 @@ static int xenbus_write_transaction(unsigned msg_type,
         }
 
         mutex_lock(&u->reply_mutex);
-        ret = queue_reply(&staging_q, &u->u.msg, sizeof(u->u.msg));
-        if (!ret)
-                ret = queue_reply(&staging_q, reply, u->u.msg.len);
-        if (!ret) {
+        rc = queue_reply(&staging_q, &u->u.msg, sizeof(u->u.msg));
+        if (!rc)
+                rc = queue_reply(&staging_q, reply, u->u.msg.len);
+        if (!rc) {
                 list_splice_tail(&staging_q, &u->read_buffers);
                 wake_up(&u->read_waitq);
         } else {
                 queue_cleanup(&staging_q);
-                rc = ret;
         }
         mutex_unlock(&u->reply_mutex);