Merge branch 'topic/ipu-destaging' of git://git.pengutronix.de/git/pza/linux into drm-next

Destage IPUv3

* 'topic/ipu-destaging' of git://git.pengutronix.de/git/pza/linux:
  gpu: ipu-v3: Register the CSI modules
  gpu: ipu-v3: Add CSI and SMFC module enable wrappers
  gpu: ipu-v3: Add ipu_idmac_get_current_buffer function
  gpu: ipu-v3: Add SMFC code
  gpu: ipu-v3: Move i.MX IPUv3 core driver out of staging

18 files changed, 216 insertions, 29 deletions

diff --git a/drivers/gpu/Makefile b/drivers/gpu/Makefile
index d8a22c2a579d..70da9eb52a42 100644
--- a/drivers/gpu/Makefile
+++ b/drivers/gpu/Makefile
@@ -1,2 +1,3 @@
 obj-y                   += drm/ vga/
 obj-$(CONFIG_TEGRA_HOST1X)      += host1x/
+obj-$(CONFIG_IMX_IPUV3_CORE)    += ipu-v3/
diff --git a/drivers/gpu/ipu-v3/Kconfig b/drivers/gpu/ipu-v3/Kconfig
new file mode 100644
index 000000000000..2f228a2f2a48
--- /dev/null
+++ b/drivers/gpu/ipu-v3/Kconfig
@@ -0,0 +1,7 @@
+config IMX_IPUV3_CORE
+        tristate "IPUv3 core support"
+        depends on SOC_IMX5 || SOC_IMX6Q || SOC_IMX6SL || ARCH_MULTIPLATFORM
+        depends on RESET_CONTROLLER
+        help
+          Choose this if you have a i.MX5/6 system and want to use the Image
+          Processing Unit. This option only enables IPU base support.
diff --git a/drivers/staging/imx-drm/ipu-v3/Makefile b/drivers/gpu/ipu-v3/Makefile
index 28ed72e98a96..1887972b4ac2 100644
--- a/drivers/staging/imx-drm/ipu-v3/Makefile
+++ b/drivers/gpu/ipu-v3/Makefile
@@ -1,3 +1,3 @@
-obj-$(CONFIG_DRM_IMX_IPUV3_CORE) += imx-ipu-v3.o
+obj-$(CONFIG_IMX_IPUV3_CORE) += imx-ipu-v3.o
 
-imx-ipu-v3-objs := ipu-common.o ipu-dc.o ipu-di.o ipu-dp.o ipu-dmfc.o
+imx-ipu-v3-objs := ipu-common.o ipu-dc.o ipu-di.o ipu-dp.o ipu-dmfc.o ipu-smfc.o
diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-common.c b/drivers/gpu/ipu-v3/ipu-common.c
index ca85d3d70ae3..719788ce7d9f 100644
--- a/drivers/staging/imx-drm/ipu-v3/ipu-common.c
+++ b/drivers/gpu/ipu-v3/ipu-common.c
@@ -31,7 +31,7 @@
 
 #include <drm/drm_fourcc.h>
 
-#include "imx-ipu-v3.h"
+#include <video/imx-ipu-v3.h>
 #include "ipu-prv.h"
 
 static inline u32 ipu_cm_read(struct ipu_soc *ipu, unsigned offset)
@@ -661,6 +661,39 @@ int ipu_module_disable(struct ipu_soc *ipu, u32 mask)
 }
 EXPORT_SYMBOL_GPL(ipu_module_disable);
 
+int ipu_csi_enable(struct ipu_soc *ipu, int csi)
+{
+        return ipu_module_enable(ipu, csi ? IPU_CONF_CSI1_EN : IPU_CONF_CSI0_EN);
+}
+EXPORT_SYMBOL_GPL(ipu_csi_enable);
+
+int ipu_csi_disable(struct ipu_soc *ipu, int csi)
+{
+        return ipu_module_disable(ipu, csi ? IPU_CONF_CSI1_EN : IPU_CONF_CSI0_EN);
+}
+EXPORT_SYMBOL_GPL(ipu_csi_disable);
+
+int ipu_smfc_enable(struct ipu_soc *ipu)
+{
+        return ipu_module_enable(ipu, IPU_CONF_SMFC_EN);
+}
+EXPORT_SYMBOL_GPL(ipu_smfc_enable);
+
+int ipu_smfc_disable(struct ipu_soc *ipu)
+{
+        return ipu_module_disable(ipu, IPU_CONF_SMFC_EN);
+}
+EXPORT_SYMBOL_GPL(ipu_smfc_disable);
+
+int ipu_idmac_get_current_buffer(struct ipuv3_channel *channel)
+{
+        struct ipu_soc *ipu = channel->ipu;
+        unsigned int chno = channel->num;
+
+        return (ipu_cm_read(ipu, IPU_CHA_CUR_BUF(chno)) & idma_mask(chno)) ? 1 : 0;
+}
+EXPORT_SYMBOL_GPL(ipu_idmac_get_current_buffer);
+
 void ipu_idmac_select_buffer(struct ipuv3_channel *channel, u32 buf_num)
 {
         struct ipu_soc *ipu = channel->ipu;
@@ -874,8 +907,17 @@ static int ipu_submodules_init(struct ipu_soc *ipu,
                 goto err_dp;
         }
 
+        ret = ipu_smfc_init(ipu, dev, ipu_base +
+                        devtype->cm_ofs + IPU_CM_SMFC_REG_OFS);
+        if (ret) {
+                unit = "smfc";
+                goto err_smfc;
+        }
+
         return 0;
 
+err_smfc:
+        ipu_dp_exit(ipu);
 err_dp:
         ipu_dmfc_exit(ipu);
 err_dmfc:
@@ -947,6 +989,7 @@ EXPORT_SYMBOL_GPL(ipu_idmac_channel_irq);
 
 static void ipu_submodules_exit(struct ipu_soc *ipu)
 {
+        ipu_smfc_exit(ipu);
         ipu_dp_exit(ipu);
         ipu_dmfc_exit(ipu);
         ipu_dc_exit(ipu);
@@ -971,6 +1014,7 @@ static void platform_device_unregister_children(struct platform_device *pdev)
 struct ipu_platform_reg {
         struct ipu_client_platformdata pdata;
         const char *name;
+        int reg_offset;
 };
 
 static const struct ipu_platform_reg client_reg[] = {
@@ -992,13 +1036,29 @@ static const struct ipu_platform_reg client_reg[] = {
                         .dma[1] = -EINVAL,
                 },
                 .name = "imx-ipuv3-crtc",
+        }, {
+                .pdata = {
+                        .csi = 0,
+                        .dma[0] = IPUV3_CHANNEL_CSI0,
+                        .dma[1] = -EINVAL,
+                },
+                .reg_offset = IPU_CM_CSI0_REG_OFS,
+                .name = "imx-ipuv3-camera",
+        }, {
+                .pdata = {
+                        .csi = 1,
+                        .dma[0] = IPUV3_CHANNEL_CSI1,
+                        .dma[1] = -EINVAL,
+                },
+                .reg_offset = IPU_CM_CSI1_REG_OFS,
+                .name = "imx-ipuv3-camera",
         },
 };
 
 static DEFINE_MUTEX(ipu_client_id_mutex);
 static int ipu_client_id;
 
-static int ipu_add_client_devices(struct ipu_soc *ipu)
+static int ipu_add_client_devices(struct ipu_soc *ipu, unsigned long ipu_base)
 {
         struct device *dev = ipu->dev;
         unsigned i;
@@ -1012,9 +1072,19 @@ static int ipu_add_client_devices(struct ipu_soc *ipu)
         for (i = 0; i < ARRAY_SIZE(client_reg); i++) {
                 const struct ipu_platform_reg *reg = &client_reg[i];
                 struct platform_device *pdev;
-
-                pdev = platform_device_register_data(dev, reg->name,
-                        id++, &reg->pdata, sizeof(reg->pdata));
+                struct resource res;
+
+                if (reg->reg_offset) {
+                        memset(&res, 0, sizeof(res));
+                        res.flags = IORESOURCE_MEM;
+                        res.start = ipu_base + ipu->devtype->cm_ofs + reg->reg_offset;
+                        res.end = res.start + PAGE_SIZE - 1;
+                        pdev = platform_device_register_resndata(dev, reg->name,
+                                id++, &res, 1, &reg->pdata, sizeof(reg->pdata));
+                } else {
+                        pdev = platform_device_register_data(dev, reg->name,
+                                id++, &reg->pdata, sizeof(reg->pdata));
+                }
 
                 if (IS_ERR(pdev))
                         goto err_register;
@@ -1210,7 +1280,7 @@ static int ipu_probe(struct platform_device *pdev)
         if (ret)
                 goto failed_submodules_init;
 
-        ret = ipu_add_client_devices(ipu);
+        ret = ipu_add_client_devices(ipu, ipu_base);
         if (ret) {
                 dev_err(&pdev->dev, "adding client devices failed with %d\n",
                                 ret);
diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-dc.c b/drivers/gpu/ipu-v3/ipu-dc.c
index d5de8bb5c803..9f1e5efa3acf 100644
--- a/drivers/staging/imx-drm/ipu-v3/ipu-dc.c
+++ b/drivers/gpu/ipu-v3/ipu-dc.c
@@ -20,8 +20,7 @@
 #include <linux/delay.h>
 #include <linux/io.h>
 
-#include "../imx-drm.h"
-#include "imx-ipu-v3.h"
+#include <video/imx-ipu-v3.h>
 #include "ipu-prv.h"
 
 #define DC_MAP_CONF_PTR(n)      (0x108 + ((n) & ~0x1) * 2)
diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-di.c b/drivers/gpu/ipu-v3/ipu-di.c
index 82a9ebad697c..42e60b447ae7 100644
--- a/drivers/staging/imx-drm/ipu-v3/ipu-di.c
+++ b/drivers/gpu/ipu-v3/ipu-di.c
@@ -20,7 +20,7 @@
 #include <linux/err.h>
 #include <linux/platform_device.h>
 
-#include "imx-ipu-v3.h"
+#include <video/imx-ipu-v3.h>
 #include "ipu-prv.h"
 
 struct ipu_di {
diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-dmfc.c b/drivers/gpu/ipu-v3/ipu-dmfc.c
index 45213017fa4b..e1493ab36ca2 100644
--- a/drivers/staging/imx-drm/ipu-v3/ipu-dmfc.c
+++ b/drivers/gpu/ipu-v3/ipu-dmfc.c
@@ -17,7 +17,7 @@
 #include <linux/errno.h>
 #include <linux/io.h>
 
-#include "imx-ipu-v3.h"
+#include <video/imx-ipu-v3.h>
 #include "ipu-prv.h"
 
 #define DMFC_RD_CHAN            0x0000
diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-dp.c b/drivers/gpu/ipu-v3/ipu-dp.c
index 58f87c8d7c07..e17fa3f7c4b6 100644
--- a/drivers/staging/imx-drm/ipu-v3/ipu-dp.c
+++ b/drivers/gpu/ipu-v3/ipu-dp.c
@@ -19,7 +19,7 @@
 #include <linux/io.h>
 #include <linux/err.h>
 
-#include "imx-ipu-v3.h"
+#include <video/imx-ipu-v3.h>
 #include "ipu-prv.h"
 
 #define DP_SYNC 0
diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-prv.h b/drivers/gpu/ipu-v3/ipu-prv.h
index 4df00501adc2..acf181183f0b 100644
--- a/drivers/staging/imx-drm/ipu-v3/ipu-prv.h
+++ b/drivers/gpu/ipu-v3/ipu-prv.h
@@ -22,7 +22,7 @@ struct ipu_soc;
 #include <linux/clk.h>
 #include <linux/platform_device.h>
 
-#include "imx-ipu-v3.h"
+#include <video/imx-ipu-v3.h>
 
 #define IPUV3_CHANNEL_CSI0                       0
 #define IPUV3_CHANNEL_CSI1                       1
@@ -151,6 +151,8 @@ struct ipuv3_channel {
 struct ipu_dc_priv;
 struct ipu_dmfc_priv;
 struct ipu_di;
+struct ipu_smfc_priv;
+
 struct ipu_devtype;
 
 struct ipu_soc {
@@ -178,6 +180,7 @@ struct ipu_soc {
         struct ipu_dp_priv      *dp_priv;
         struct ipu_dmfc_priv    *dmfc_priv;
         struct ipu_di           *di_priv[2];
+        struct ipu_smfc_priv    *smfc_priv;
 };
 
 void ipu_srm_dp_sync_update(struct ipu_soc *ipu);
@@ -203,4 +206,7 @@ void ipu_dc_exit(struct ipu_soc *ipu);
 int ipu_cpmem_init(struct ipu_soc *ipu, struct device *dev, unsigned long base);
 void ipu_cpmem_exit(struct ipu_soc *ipu);
 
+int ipu_smfc_init(struct ipu_soc *ipu, struct device *dev, unsigned long base);
+void ipu_smfc_exit(struct ipu_soc *ipu);
+
 #endif                          /* __IPU_PRV_H__ */
diff --git a/drivers/gpu/ipu-v3/ipu-smfc.c b/drivers/gpu/ipu-v3/ipu-smfc.c
new file mode 100644
index 000000000000..e4f85ad286fc
--- /dev/null
+++ b/drivers/gpu/ipu-v3/ipu-smfc.c
@@ -0,0 +1,97 @@
+/*
+ * Copyright 2008-2010 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+#define DEBUG
+#include <linux/export.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/errno.h>
+#include <linux/spinlock.h>
+#include <linux/delay.h>
+#include <linux/clk.h>
+#include <video/imx-ipu-v3.h>
+
+#include "ipu-prv.h"
+
+struct ipu_smfc_priv {
+        void __iomem *base;
+        spinlock_t lock;
+};
+
+/*SMFC Registers */
+#define SMFC_MAP        0x0000
+#define SMFC_WMC        0x0004
+#define SMFC_BS         0x0008
+
+int ipu_smfc_set_burstsize(struct ipu_soc *ipu, int channel, int burstsize)
+{
+        struct ipu_smfc_priv *smfc = ipu->smfc_priv;
+        unsigned long flags;
+        u32 val, shift;
+
+        spin_lock_irqsave(&smfc->lock, flags);
+
+        shift = channel * 4;
+        val = readl(smfc->base + SMFC_BS);
+        val &= ~(0xf << shift);
+        val |= burstsize << shift;
+        writel(val, smfc->base + SMFC_BS);
+
+        spin_unlock_irqrestore(&smfc->lock, flags);
+
+        return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_smfc_set_burstsize);
+
+int ipu_smfc_map_channel(struct ipu_soc *ipu, int channel, int csi_id, int mipi_id)
+{
+        struct ipu_smfc_priv *smfc = ipu->smfc_priv;
+        unsigned long flags;
+        u32 val, shift;
+
+        spin_lock_irqsave(&smfc->lock, flags);
+
+        shift = channel * 3;
+        val = readl(smfc->base + SMFC_MAP);
+        val &= ~(0x7 << shift);
+        val |= ((csi_id << 2) | mipi_id) << shift;
+        writel(val, smfc->base + SMFC_MAP);
+
+        spin_unlock_irqrestore(&smfc->lock, flags);
+
+        return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_smfc_map_channel);
+
+int ipu_smfc_init(struct ipu_soc *ipu, struct device *dev,
+                  unsigned long base)
+{
+        struct ipu_smfc_priv *smfc;
+
+        smfc = devm_kzalloc(dev, sizeof(*smfc), GFP_KERNEL);
+        if (!smfc)
+                return -ENOMEM;
+
+        ipu->smfc_priv = smfc;
+        spin_lock_init(&smfc->lock);
+
+        smfc->base = devm_ioremap(dev, base, PAGE_SIZE);
+        if (!smfc->base)
+                return -ENOMEM;
+
+        pr_debug("%s: ioremap 0x%08lx -> %p\n", __func__, base, smfc->base);
+
+        return 0;
+}
+
+void ipu_smfc_exit(struct ipu_soc *ipu)
+{
+}
diff --git a/drivers/staging/imx-drm/Kconfig b/drivers/staging/imx-drm/Kconfig
index c6e8ba7b3e4e..82fb758a29bc 100644
--- a/drivers/staging/imx-drm/Kconfig
+++ b/drivers/staging/imx-drm/Kconfig
@@ -39,19 +39,10 @@ config DRM_IMX_LDB
           Choose this to enable the internal LVDS Display Bridge (LDB)
           found on i.MX53 and i.MX6 processors.
 
-config DRM_IMX_IPUV3_CORE
-        tristate "IPUv3 core support"
-        depends on DRM_IMX
-        depends on RESET_CONTROLLER
-        help
-          Choose this if you have a i.MX5/6 system and want
-          to use the IPU. This option only enables IPU base
-          support.
-
 config DRM_IMX_IPUV3
         tristate "DRM Support for i.MX IPUv3"
         depends on DRM_IMX
-        depends on DRM_IMX_IPUV3_CORE
+        depends on IMX_IPUV3_CORE
         help
           Choose this if you have a i.MX5 or i.MX6 processor.
 
diff --git a/drivers/staging/imx-drm/Makefile b/drivers/staging/imx-drm/Makefile
index 129e3a3f59f1..582c438d8cbd 100644
--- a/drivers/staging/imx-drm/Makefile
+++ b/drivers/staging/imx-drm/Makefile
@@ -6,7 +6,6 @@ obj-$(CONFIG_DRM_IMX) += imxdrm.o
 obj-$(CONFIG_DRM_IMX_PARALLEL_DISPLAY) += parallel-display.o
 obj-$(CONFIG_DRM_IMX_TVE) += imx-tve.o
 obj-$(CONFIG_DRM_IMX_LDB) += imx-ldb.o
-obj-$(CONFIG_DRM_IMX_IPUV3_CORE) += ipu-v3/
 
 imx-ipuv3-crtc-objs  := ipuv3-crtc.o ipuv3-plane.o
 obj-$(CONFIG_DRM_IMX_IPUV3)     += imx-ipuv3-crtc.o
diff --git a/drivers/staging/imx-drm/imx-hdmi.c b/drivers/staging/imx-drm/imx-hdmi.c
index 9fbe6d6a989d..76749231c48a 100644
--- a/drivers/staging/imx-drm/imx-hdmi.c
+++ b/drivers/staging/imx-drm/imx-hdmi.c
@@ -27,8 +27,8 @@
 #include <drm/drm_crtc_helper.h>
 #include <drm/drm_edid.h>
 #include <drm/drm_encoder_slave.h>
+#include <video/imx-ipu-v3.h>
 
-#include "ipu-v3/imx-ipu-v3.h"
 #include "imx-hdmi.h"
 #include "imx-drm.h"
 
diff --git a/drivers/staging/imx-drm/imx-tve.c b/drivers/staging/imx-drm/imx-tve.c
index 4caef2b1653d..c628fcdc22ae 100644
--- a/drivers/staging/imx-drm/imx-tve.c
+++ b/drivers/staging/imx-drm/imx-tve.c
@@ -30,8 +30,8 @@
 #include <drm/drmP.h>
 #include <drm/drm_fb_helper.h>
 #include <drm/drm_crtc_helper.h>
+#include <video/imx-ipu-v3.h>
 
-#include "ipu-v3/imx-ipu-v3.h"
 #include "imx-drm.h"
 
 #define TVE_COM_CONF_REG        0x00
diff --git a/drivers/staging/imx-drm/ipuv3-crtc.c b/drivers/staging/imx-drm/ipuv3-crtc.c
index c48f640db006..d6913d2e6f77 100644
--- a/drivers/staging/imx-drm/ipuv3-crtc.c
+++ b/drivers/staging/imx-drm/ipuv3-crtc.c
@@ -30,7 +30,7 @@
 #include <drm/drm_gem_cma_helper.h>
 #include <drm/drm_fb_cma_helper.h>
 
-#include "ipu-v3/imx-ipu-v3.h"
+#include <video/imx-ipu-v3.h>
 #include "imx-drm.h"
 #include "ipuv3-plane.h"
 
diff --git a/drivers/staging/imx-drm/ipuv3-plane.c b/drivers/staging/imx-drm/ipuv3-plane.c
index 27a8d735dae0..02b4486435a0 100644
--- a/drivers/staging/imx-drm/ipuv3-plane.c
+++ b/drivers/staging/imx-drm/ipuv3-plane.c
@@ -17,7 +17,7 @@
 #include <drm/drm_fb_cma_helper.h>
 #include <drm/drm_gem_cma_helper.h>
 
-#include "ipu-v3/imx-ipu-v3.h"
+#include "video/imx-ipu-v3.h"
 #include "ipuv3-plane.h"
 
 #define to_ipu_plane(x) container_of(x, struct ipu_plane, base)
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index c7b4f0f927b1..8bf495ffb020 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -20,6 +20,7 @@ source "drivers/char/agp/Kconfig"
 source "drivers/gpu/vga/Kconfig"
 
 source "drivers/gpu/host1x/Kconfig"
+source "drivers/gpu/ipu-v3/Kconfig"
 
 menu "Direct Rendering Manager"
 source "drivers/gpu/drm/Kconfig"
diff --git a/drivers/staging/imx-drm/ipu-v3/imx-ipu-v3.h b/include/video/imx-ipu-v3.h
index c4d14ead5837..61d6d25caf95 100644
--- a/drivers/staging/imx-drm/ipu-v3/imx-ipu-v3.h
+++ b/include/video/imx-ipu-v3.h
@@ -103,6 +103,7 @@ int ipu_idmac_wait_busy(struct ipuv3_channel *channel, int ms);
 
 void ipu_idmac_set_double_buffer(struct ipuv3_channel *channel,
                 bool doublebuffer);
+int ipu_idmac_get_current_buffer(struct ipuv3_channel *channel);
 void ipu_idmac_select_buffer(struct ipuv3_channel *channel, u32 buf_num);
 
 /*
@@ -160,6 +161,20 @@ int ipu_dp_set_window_pos(struct ipu_dp *, u16 x_pos, u16 y_pos);
 int ipu_dp_set_global_alpha(struct ipu_dp *dp, bool enable, u8 alpha,
                 bool bg_chan);
 
+/*
+ * IPU CMOS Sensor Interface (csi) functions
+ */
+int ipu_csi_enable(struct ipu_soc *ipu, int csi);
+int ipu_csi_disable(struct ipu_soc *ipu, int csi);
+
+/*
+ * IPU Sensor Multiple FIFO Controller (SMFC) functions
+ */
+int ipu_smfc_enable(struct ipu_soc *ipu);
+int ipu_smfc_disable(struct ipu_soc *ipu);
+int ipu_smfc_map_channel(struct ipu_soc *ipu, int channel, int csi_id, int mipi_id);
+int ipu_smfc_set_burstsize(struct ipu_soc *ipu, int channel, int burstsize);
+
 #define IPU_CPMEM_WORD(word, ofs, size) ((((word) * 160 + (ofs)) << 8) | (size))
 
 #define IPU_FIELD_UBO           IPU_CPMEM_WORD(0, 46, 22)
@@ -316,6 +331,7 @@ static inline void ipu_cpmem_set_burstsize(struct ipu_ch_param __iomem *p,
 };
 
 struct ipu_client_platformdata {
+        int csi;
         int di;
         int dc;
         int dp;