16 files changed, 448 insertions, 58 deletions

diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index bb233a9cbad2..7b90fc361b52 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -161,13 +161,13 @@ config SPI_IMX_VER_0_0
         def_bool y if SOC_IMX21 || SOC_IMX27
 
 config SPI_IMX_VER_0_4
-        def_bool y if ARCH_MX31
+        def_bool y if SOC_IMX31
 
 config SPI_IMX_VER_0_7
-        def_bool y if ARCH_MX25 || ARCH_MX35 || ARCH_MX51 || ARCH_MX53
+        def_bool y if ARCH_MX25 || SOC_IMX35 || SOC_IMX51 || SOC_IMX53
 
 config SPI_IMX_VER_2_3
-        def_bool y if ARCH_MX51 || ARCH_MX53
+        def_bool y if SOC_IMX51 || SOC_IMX53
 
 config SPI_IMX
         tristate "Freescale i.MX SPI controllers"
@@ -350,6 +350,16 @@ config SPI_TEGRA
         help
           SPI driver for NVidia Tegra SoCs
 
+config SPI_TI_SSP
+        tristate "TI Sequencer Serial Port - SPI Support"
+        depends on MFD_TI_SSP
+        help
+          This selects an SPI master implementation using a TI sequencer
+          serial port.
+
+          To compile this driver as a module, choose M here: the
+          module will be called ti-ssp-spi.
+
 config SPI_TOPCLIFF_PCH
         tristate "Topcliff PCH SPI Controller"
         depends on PCI
diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile
index 86d1b5f9bbd9..f3f31d988358 100644
--- a/drivers/spi/Makefile
+++ b/drivers/spi/Makefile
@@ -43,6 +43,7 @@ obj-$(CONFIG_SPI_S3C24XX_GPIO)		+= spi_s3c24xx_gpio.o
 obj-$(CONFIG_SPI_S3C24XX)               += spi_s3c24xx_hw.o
 obj-$(CONFIG_SPI_S3C64XX)               += spi_s3c64xx.o
 obj-$(CONFIG_SPI_TEGRA)                 += spi_tegra.o
+obj-$(CONFIG_SPI_TI_SSP)                += ti-ssp-spi.o
 obj-$(CONFIG_SPI_TOPCLIFF_PCH)          += spi_topcliff_pch.o
 obj-$(CONFIG_SPI_TXX9)                  += spi_txx9.o
 obj-$(CONFIG_SPI_XILINX)                += xilinx_spi.o
diff --git a/drivers/spi/amba-pl022.c b/drivers/spi/amba-pl022.c
index 71a1219a995d..95e58c70a2c9 100644
--- a/drivers/spi/amba-pl022.c
+++ b/drivers/spi/amba-pl022.c
@@ -2021,7 +2021,7 @@ static void pl022_cleanup(struct spi_device *spi)
 
 
 static int __devinit
-pl022_probe(struct amba_device *adev, struct amba_id *id)
+pl022_probe(struct amba_device *adev, const struct amba_id *id)
 {
         struct device *dev = &adev->dev;
         struct pl022_ssp_controller *platform_info = adev->dev.platform_data;
diff --git a/drivers/spi/davinci_spi.c b/drivers/spi/davinci_spi.c
index 6beab99bf95b..166a879fd9e8 100644
--- a/drivers/spi/davinci_spi.c
+++ b/drivers/spi/davinci_spi.c
@@ -790,7 +790,6 @@ static int davinci_spi_probe(struct platform_device *pdev)
         struct resource *r, *mem;
         resource_size_t dma_rx_chan = SPI_NO_RESOURCE;
         resource_size_t dma_tx_chan = SPI_NO_RESOURCE;
-        resource_size_t dma_eventq = SPI_NO_RESOURCE;
         int i = 0, ret = 0;
         u32 spipc0;
 
@@ -878,17 +877,13 @@ static int davinci_spi_probe(struct platform_device *pdev)
         r = platform_get_resource(pdev, IORESOURCE_DMA, 1);
         if (r)
                 dma_tx_chan = r->start;
-        r = platform_get_resource(pdev, IORESOURCE_DMA, 2);
-        if (r)
-                dma_eventq = r->start;
 
         dspi->bitbang.txrx_bufs = davinci_spi_bufs;
         if (dma_rx_chan != SPI_NO_RESOURCE &&
-            dma_tx_chan != SPI_NO_RESOURCE &&
-            dma_eventq != SPI_NO_RESOURCE) {
+            dma_tx_chan != SPI_NO_RESOURCE) {
                 dspi->dma.rx_channel = dma_rx_chan;
                 dspi->dma.tx_channel = dma_tx_chan;
-                dspi->dma.eventq = dma_eventq;
+                dspi->dma.eventq = pdata->dma_event_q;
 
                 ret = davinci_spi_request_dma(dspi);
                 if (ret)
@@ -897,7 +892,7 @@ static int davinci_spi_probe(struct platform_device *pdev)
                 dev_info(&pdev->dev, "DMA: supported\n");
                 dev_info(&pdev->dev, "DMA: RX channel: %d, TX channel: %d, "
                                 "event queue: %d\n", dma_rx_chan, dma_tx_chan,
-                                dma_eventq);
+                                pdata->dma_event_q);
         }
 
         dspi->get_rx = davinci_spi_rx_buf_u8;
diff --git a/drivers/spi/mpc512x_psc_spi.c b/drivers/spi/mpc512x_psc_spi.c
index 77d9e7ee8b27..6a5b4238fb6b 100644
--- a/drivers/spi/mpc512x_psc_spi.c
+++ b/drivers/spi/mpc512x_psc_spi.c
@@ -507,8 +507,7 @@ static int __devexit mpc512x_psc_spi_do_remove(struct device *dev)
         return 0;
 }
 
-static int __devinit mpc512x_psc_spi_of_probe(struct platform_device *op,
-                                              const struct of_device_id *match)
+static int __devinit mpc512x_psc_spi_of_probe(struct platform_device *op)
 {
         const u32 *regaddr_p;
         u64 regaddr64, size64;
@@ -551,7 +550,7 @@ static struct of_device_id mpc512x_psc_spi_of_match[] = {
 
 MODULE_DEVICE_TABLE(of, mpc512x_psc_spi_of_match);
 
-static struct of_platform_driver mpc512x_psc_spi_of_driver = {
+static struct platform_driver mpc512x_psc_spi_of_driver = {
         .probe = mpc512x_psc_spi_of_probe,
         .remove = __devexit_p(mpc512x_psc_spi_of_remove),
         .driver = {
@@ -563,13 +562,13 @@ static struct of_platform_driver mpc512x_psc_spi_of_driver = {
 
 static int __init mpc512x_psc_spi_init(void)
 {
-        return of_register_platform_driver(&mpc512x_psc_spi_of_driver);
+        return platform_driver_register(&mpc512x_psc_spi_of_driver);
 }
 module_init(mpc512x_psc_spi_init);
 
 static void __exit mpc512x_psc_spi_exit(void)
 {
-        of_unregister_platform_driver(&mpc512x_psc_spi_of_driver);
+        platform_driver_unregister(&mpc512x_psc_spi_of_driver);
 }
 module_exit(mpc512x_psc_spi_exit);
 
diff --git a/drivers/spi/mpc52xx_psc_spi.c b/drivers/spi/mpc52xx_psc_spi.c
index 8a904c1c8485..e30baf0852ac 100644
--- a/drivers/spi/mpc52xx_psc_spi.c
+++ b/drivers/spi/mpc52xx_psc_spi.c
@@ -450,8 +450,7 @@ free_master:
         return ret;
 }
 
-static int __devinit mpc52xx_psc_spi_of_probe(struct platform_device *op,
-        const struct of_device_id *match)
+static int __devinit mpc52xx_psc_spi_of_probe(struct platform_device *op)
 {
         const u32 *regaddr_p;
         u64 regaddr64, size64;
@@ -503,7 +502,7 @@ static const struct of_device_id mpc52xx_psc_spi_of_match[] = {
 
 MODULE_DEVICE_TABLE(of, mpc52xx_psc_spi_of_match);
 
-static struct of_platform_driver mpc52xx_psc_spi_of_driver = {
+static struct platform_driver mpc52xx_psc_spi_of_driver = {
         .probe = mpc52xx_psc_spi_of_probe,
         .remove = __devexit_p(mpc52xx_psc_spi_of_remove),
         .driver = {
@@ -515,13 +514,13 @@ static struct of_platform_driver mpc52xx_psc_spi_of_driver = {
 
 static int __init mpc52xx_psc_spi_init(void)
 {
-        return of_register_platform_driver(&mpc52xx_psc_spi_of_driver);
+        return platform_driver_register(&mpc52xx_psc_spi_of_driver);
 }
 module_init(mpc52xx_psc_spi_init);
 
 static void __exit mpc52xx_psc_spi_exit(void)
 {
-        of_unregister_platform_driver(&mpc52xx_psc_spi_of_driver);
+        platform_driver_unregister(&mpc52xx_psc_spi_of_driver);
 }
 module_exit(mpc52xx_psc_spi_exit);
 
diff --git a/drivers/spi/mpc52xx_spi.c b/drivers/spi/mpc52xx_spi.c
index 84439f655601..015a974bed72 100644
--- a/drivers/spi/mpc52xx_spi.c
+++ b/drivers/spi/mpc52xx_spi.c
@@ -390,8 +390,7 @@ static int mpc52xx_spi_transfer(struct spi_device *spi, struct spi_message *m)
 /*
  * OF Platform Bus Binding
  */
-static int __devinit mpc52xx_spi_probe(struct platform_device *op,
-                                       const struct of_device_id *match)
+static int __devinit mpc52xx_spi_probe(struct platform_device *op)
 {
         struct spi_master *master;
         struct mpc52xx_spi *ms;
@@ -556,7 +555,7 @@ static const struct of_device_id mpc52xx_spi_match[] __devinitconst = {
 };
 MODULE_DEVICE_TABLE(of, mpc52xx_spi_match);
 
-static struct of_platform_driver mpc52xx_spi_of_driver = {
+static struct platform_driver mpc52xx_spi_of_driver = {
         .driver = {
                 .name = "mpc52xx-spi",
                 .owner = THIS_MODULE,
@@ -568,13 +567,13 @@ static struct of_platform_driver mpc52xx_spi_of_driver = {
 
 static int __init mpc52xx_spi_init(void)
 {
-        return of_register_platform_driver(&mpc52xx_spi_of_driver);
+        return platform_driver_register(&mpc52xx_spi_of_driver);
 }
 module_init(mpc52xx_spi_init);
 
 static void __exit mpc52xx_spi_exit(void)
 {
-        of_unregister_platform_driver(&mpc52xx_spi_of_driver);
+        platform_driver_unregister(&mpc52xx_spi_of_driver);
 }
 module_exit(mpc52xx_spi_exit);
 
diff --git a/drivers/spi/pxa2xx_spi.c b/drivers/spi/pxa2xx_spi.c
index 95928833855b..a429b01d0285 100644
--- a/drivers/spi/pxa2xx_spi.c
+++ b/drivers/spi/pxa2xx_spi.c
@@ -1557,9 +1557,7 @@ static int __devinit pxa2xx_spi_probe(struct platform_device *pdev)
         drv_data->ssp = ssp;
 
         master->dev.parent = &pdev->dev;
-#ifdef CONFIG_OF
         master->dev.of_node = pdev->dev.of_node;
-#endif
         /* the spi->mode bits understood by this driver: */
         master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH;
 
diff --git a/drivers/spi/pxa2xx_spi_pci.c b/drivers/spi/pxa2xx_spi_pci.c
index 19752b09e155..378e504f89eb 100644
--- a/drivers/spi/pxa2xx_spi_pci.c
+++ b/drivers/spi/pxa2xx_spi_pci.c
@@ -89,9 +89,7 @@ static int __devinit ce4100_spi_probe(struct pci_dev *dev,
                 goto err_nomem;
 
         pdev->dev.parent = &dev->dev;
-#ifdef CONFIG_OF
         pdev->dev.of_node = dev->dev.of_node;
-#endif
         ssp = &spi_info->ssp;
         ssp->phys_base = pci_resource_start(dev, 0);
         ssp->mmio_base = ioremap(phys_beg, phys_len);
diff --git a/drivers/spi/spi_fsl_espi.c b/drivers/spi/spi_fsl_espi.c
index a99e2333b949..900e921ab80e 100644
--- a/drivers/spi/spi_fsl_espi.c
+++ b/drivers/spi/spi_fsl_espi.c
@@ -685,8 +685,7 @@ static int of_fsl_espi_get_chipselects(struct device *dev)
         return 0;
 }
 
-static int __devinit of_fsl_espi_probe(struct platform_device *ofdev,
-                                        const struct of_device_id *ofid)
+static int __devinit of_fsl_espi_probe(struct platform_device *ofdev)
 {
         struct device *dev = &ofdev->dev;
         struct device_node *np = ofdev->dev.of_node;
@@ -695,7 +694,7 @@ static int __devinit of_fsl_espi_probe(struct platform_device *ofdev,
         struct resource irq;
         int ret = -ENOMEM;
 
-        ret = of_mpc8xxx_spi_probe(ofdev, ofid);
+        ret = of_mpc8xxx_spi_probe(ofdev);
         if (ret)
                 return ret;
 
@@ -736,7 +735,7 @@ static const struct of_device_id of_fsl_espi_match[] = {
 };
 MODULE_DEVICE_TABLE(of, of_fsl_espi_match);
 
-static struct of_platform_driver fsl_espi_driver = {
+static struct platform_driver fsl_espi_driver = {
         .driver = {
                 .name = "fsl_espi",
                 .owner = THIS_MODULE,
@@ -748,13 +747,13 @@ static struct of_platform_driver fsl_espi_driver = {
 
 static int __init fsl_espi_init(void)
 {
-        return of_register_platform_driver(&fsl_espi_driver);
+        return platform_driver_register(&fsl_espi_driver);
 }
 module_init(fsl_espi_init);
 
 static void __exit fsl_espi_exit(void)
 {
-        of_unregister_platform_driver(&fsl_espi_driver);
+        platform_driver_unregister(&fsl_espi_driver);
 }
 module_exit(fsl_espi_exit);
 
diff --git a/drivers/spi/spi_fsl_lib.c b/drivers/spi/spi_fsl_lib.c
index 5cd741fdb5c3..ff59f42ae990 100644
--- a/drivers/spi/spi_fsl_lib.c
+++ b/drivers/spi/spi_fsl_lib.c
@@ -189,8 +189,7 @@ int __devexit mpc8xxx_spi_remove(struct device *dev)
         return 0;
 }
 
-int __devinit of_mpc8xxx_spi_probe(struct platform_device *ofdev,
-                                        const struct of_device_id *ofid)
+int __devinit of_mpc8xxx_spi_probe(struct platform_device *ofdev)
 {
         struct device *dev = &ofdev->dev;
         struct device_node *np = ofdev->dev.of_node;
diff --git a/drivers/spi/spi_fsl_lib.h b/drivers/spi/spi_fsl_lib.h
index 281e060977cd..cbe881b9ea76 100644
--- a/drivers/spi/spi_fsl_lib.h
+++ b/drivers/spi/spi_fsl_lib.h
@@ -118,7 +118,6 @@ extern const char *mpc8xxx_spi_strmode(unsigned int flags);
 extern int mpc8xxx_spi_probe(struct device *dev, struct resource *mem,
                 unsigned int irq);
 extern int mpc8xxx_spi_remove(struct device *dev);
-extern int of_mpc8xxx_spi_probe(struct platform_device *ofdev,
-                                const struct of_device_id *ofid);
+extern int of_mpc8xxx_spi_probe(struct platform_device *ofdev);
 
 #endif /* __SPI_FSL_LIB_H__ */
diff --git a/drivers/spi/spi_fsl_spi.c b/drivers/spi/spi_fsl_spi.c
index 7ca52d3ae8f8..7963c9b49566 100644
--- a/drivers/spi/spi_fsl_spi.c
+++ b/drivers/spi/spi_fsl_spi.c
@@ -1042,8 +1042,7 @@ static int of_fsl_spi_free_chipselects(struct device *dev)
         return 0;
 }
 
-static int __devinit of_fsl_spi_probe(struct platform_device *ofdev,
-                                        const struct of_device_id *ofid)
+static int __devinit of_fsl_spi_probe(struct platform_device *ofdev)
 {
         struct device *dev = &ofdev->dev;
         struct device_node *np = ofdev->dev.of_node;
@@ -1052,7 +1051,7 @@ static int __devinit of_fsl_spi_probe(struct platform_device *ofdev,
         struct resource irq;
         int ret = -ENOMEM;
 
-        ret = of_mpc8xxx_spi_probe(ofdev, ofid);
+        ret = of_mpc8xxx_spi_probe(ofdev);
         if (ret)
                 return ret;
 
@@ -1100,7 +1099,7 @@ static const struct of_device_id of_fsl_spi_match[] = {
 };
 MODULE_DEVICE_TABLE(of, of_fsl_spi_match);
 
-static struct of_platform_driver of_fsl_spi_driver = {
+static struct platform_driver of_fsl_spi_driver = {
         .driver = {
                 .name = "fsl_spi",
                 .owner = THIS_MODULE,
@@ -1177,13 +1176,13 @@ static void __exit legacy_driver_unregister(void) {}
 static int __init fsl_spi_init(void)
 {
         legacy_driver_register();
-        return of_register_platform_driver(&of_fsl_spi_driver);
+        return platform_driver_register(&of_fsl_spi_driver);
 }
 module_init(fsl_spi_init);
 
 static void __exit fsl_spi_exit(void)
 {
-        of_unregister_platform_driver(&of_fsl_spi_driver);
+        platform_driver_unregister(&of_fsl_spi_driver);
         legacy_driver_unregister();
 }
 module_exit(fsl_spi_exit);
diff --git a/drivers/spi/spi_ppc4xx.c b/drivers/spi/spi_ppc4xx.c
index 80e172d3e72a..2a298c029194 100644
--- a/drivers/spi/spi_ppc4xx.c
+++ b/drivers/spi/spi_ppc4xx.c
@@ -390,8 +390,7 @@ static void free_gpios(struct ppc4xx_spi *hw)
 /*
  * platform_device layer stuff...
  */
-static int __init spi_ppc4xx_of_probe(struct platform_device *op,
-                                      const struct of_device_id *match)
+static int __init spi_ppc4xx_of_probe(struct platform_device *op)
 {
         struct ppc4xx_spi *hw;
         struct spi_master *master;
@@ -586,7 +585,7 @@ static const struct of_device_id spi_ppc4xx_of_match[] = {
 
 MODULE_DEVICE_TABLE(of, spi_ppc4xx_of_match);
 
-static struct of_platform_driver spi_ppc4xx_of_driver = {
+static struct platform_driver spi_ppc4xx_of_driver = {
         .probe = spi_ppc4xx_of_probe,
         .remove = __exit_p(spi_ppc4xx_of_remove),
         .driver = {
@@ -598,13 +597,13 @@ static struct of_platform_driver spi_ppc4xx_of_driver = {
 
 static int __init spi_ppc4xx_init(void)
 {
-        return of_register_platform_driver(&spi_ppc4xx_of_driver);
+        return platform_driver_register(&spi_ppc4xx_of_driver);
 }
 module_init(spi_ppc4xx_init);
 
 static void __exit spi_ppc4xx_exit(void)
 {
-        of_unregister_platform_driver(&spi_ppc4xx_of_driver);
+        platform_driver_unregister(&spi_ppc4xx_of_driver);
 }
 module_exit(spi_ppc4xx_exit);
 
diff --git a/drivers/spi/ti-ssp-spi.c b/drivers/spi/ti-ssp-spi.c
new file mode 100644
index 000000000000..ee22795c7973
--- /dev/null
+++ b/drivers/spi/ti-ssp-spi.c
@@ -0,0 +1,402 @@
+/*
+ * Sequencer Serial Port (SSP) based SPI master driver
+ *
+ * Copyright (C) 2010 Texas Instruments Inc
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/err.h>
+#include <linux/completion.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/spi/spi.h>
+#include <linux/mfd/ti_ssp.h>
+
+#define MODE_BITS       (SPI_CPHA | SPI_CPOL | SPI_CS_HIGH)
+
+struct ti_ssp_spi {
+        struct spi_master               *master;
+        struct device                   *dev;
+        spinlock_t                      lock;
+        struct list_head                msg_queue;
+        struct completion               complete;
+        bool                            shutdown;
+        struct workqueue_struct         *workqueue;
+        struct work_struct              work;
+        u8                              mode, bpw;
+        int                             cs_active;
+        u32                             pc_en, pc_dis, pc_wr, pc_rd;
+        void                            (*select)(int cs);
+};
+
+static u32 ti_ssp_spi_rx(struct ti_ssp_spi *hw)
+{
+        u32 ret;
+
+        ti_ssp_run(hw->dev, hw->pc_rd, 0, &ret);
+        return ret;
+}
+
+static void ti_ssp_spi_tx(struct ti_ssp_spi *hw, u32 data)
+{
+        ti_ssp_run(hw->dev, hw->pc_wr, data << (32 - hw->bpw), NULL);
+}
+
+static int ti_ssp_spi_txrx(struct ti_ssp_spi *hw, struct spi_message *msg,
+                       struct spi_transfer *t)
+{
+        int count;
+
+        if (hw->bpw <= 8) {
+                u8              *rx = t->rx_buf;
+                const u8        *tx = t->tx_buf;
+
+                for (count = 0; count < t->len; count += 1) {
+                        if (t->tx_buf)
+                                ti_ssp_spi_tx(hw, *tx++);
+                        if (t->rx_buf)
+                                *rx++ = ti_ssp_spi_rx(hw);
+                }
+        } else if (hw->bpw <= 16) {
+                u16             *rx = t->rx_buf;
+                const u16       *tx = t->tx_buf;
+
+                for (count = 0; count < t->len; count += 2) {
+                        if (t->tx_buf)
+                                ti_ssp_spi_tx(hw, *tx++);
+                        if (t->rx_buf)
+                                *rx++ = ti_ssp_spi_rx(hw);
+                }
+        } else {
+                u32             *rx = t->rx_buf;
+                const u32       *tx = t->tx_buf;
+
+                for (count = 0; count < t->len; count += 4) {
+                        if (t->tx_buf)
+                                ti_ssp_spi_tx(hw, *tx++);
+                        if (t->rx_buf)
+                                *rx++ = ti_ssp_spi_rx(hw);
+                }
+        }
+
+        msg->actual_length += count; /* bytes transferred */
+
+        dev_dbg(&msg->spi->dev, "xfer %s%s, %d bytes, %d bpw, count %d%s\n",
+                t->tx_buf ? "tx" : "", t->rx_buf ? "rx" : "", t->len,
+                hw->bpw, count, (count < t->len) ? " (under)" : "");
+
+        return (count < t->len) ? -EIO : 0; /* left over data */
+}
+
+static void ti_ssp_spi_chip_select(struct ti_ssp_spi *hw, int cs_active)
+{
+        cs_active = !!cs_active;
+        if (cs_active == hw->cs_active)
+                return;
+        ti_ssp_run(hw->dev, cs_active ? hw->pc_en : hw->pc_dis, 0, NULL);
+        hw->cs_active = cs_active;
+}
+
+#define __SHIFT_OUT(bits)       (SSP_OPCODE_SHIFT | SSP_OUT_MODE | \
+                                 cs_en | clk | SSP_COUNT((bits) * 2 - 1))
+#define __SHIFT_IN(bits)        (SSP_OPCODE_SHIFT | SSP_IN_MODE  | \
+                                 cs_en | clk | SSP_COUNT((bits) * 2 - 1))
+
+static int ti_ssp_spi_setup_transfer(struct ti_ssp_spi *hw, u8 bpw, u8 mode)
+{
+        int error, idx = 0;
+        u32 seqram[16];
+        u32 cs_en, cs_dis, clk;
+        u32 topbits, botbits;
+
+        mode &= MODE_BITS;
+        if (mode == hw->mode && bpw == hw->bpw)
+                return 0;
+
+        cs_en  = (mode & SPI_CS_HIGH) ? SSP_CS_HIGH : SSP_CS_LOW;
+        cs_dis = (mode & SPI_CS_HIGH) ? SSP_CS_LOW  : SSP_CS_HIGH;
+        clk    = (mode & SPI_CPOL)    ? SSP_CLK_HIGH : SSP_CLK_LOW;
+
+        /* Construct instructions */
+
+        /* Disable Chip Select */
+        hw->pc_dis = idx;
+        seqram[idx++] = SSP_OPCODE_DIRECT | SSP_OUT_MODE | cs_dis | clk;
+        seqram[idx++] = SSP_OPCODE_STOP   | SSP_OUT_MODE | cs_dis | clk;
+
+        /* Enable Chip Select */
+        hw->pc_en = idx;
+        seqram[idx++] = SSP_OPCODE_DIRECT | SSP_OUT_MODE | cs_en | clk;
+        seqram[idx++] = SSP_OPCODE_STOP   | SSP_OUT_MODE | cs_en | clk;
+
+        /* Reads and writes need to be split for bpw > 16 */
+        topbits = (bpw > 16) ? 16 : bpw;
+        botbits = bpw - topbits;
+
+        /* Write */
+        hw->pc_wr = idx;
+        seqram[idx++] = __SHIFT_OUT(topbits) | SSP_ADDR_REG;
+        if (botbits)
+                seqram[idx++] = __SHIFT_OUT(botbits)  | SSP_DATA_REG;
+        seqram[idx++] = SSP_OPCODE_STOP | SSP_OUT_MODE | cs_en | clk;
+
+        /* Read */
+        hw->pc_rd = idx;
+        if (botbits)
+                seqram[idx++] = __SHIFT_IN(botbits) | SSP_ADDR_REG;
+        seqram[idx++] = __SHIFT_IN(topbits) | SSP_DATA_REG;
+        seqram[idx++] = SSP_OPCODE_STOP | SSP_OUT_MODE | cs_en | clk;
+
+        error = ti_ssp_load(hw->dev, 0, seqram, idx);
+        if (error < 0)
+                return error;
+
+        error = ti_ssp_set_mode(hw->dev, ((mode & SPI_CPHA) ?
+                                          0 : SSP_EARLY_DIN));
+        if (error < 0)
+                return error;
+
+        hw->bpw = bpw;
+        hw->mode = mode;
+
+        return error;
+}
+
+static void ti_ssp_spi_work(struct work_struct *work)
+{
+        struct ti_ssp_spi *hw = container_of(work, struct ti_ssp_spi, work);
+
+        spin_lock(&hw->lock);
+
+         while (!list_empty(&hw->msg_queue)) {
+                struct spi_message      *m;
+                struct spi_device       *spi;
+                struct spi_transfer     *t = NULL;
+                int                     status = 0;
+
+                m = container_of(hw->msg_queue.next, struct spi_message,
+                                 queue);
+
+                list_del_init(&m->queue);
+
+                spin_unlock(&hw->lock);
+
+                spi = m->spi;
+
+                if (hw->select)
+                        hw->select(spi->chip_select);
+
+                list_for_each_entry(t, &m->transfers, transfer_list) {
+                        int bpw = spi->bits_per_word;
+                        int xfer_status;
+
+                        if (t->bits_per_word)
+                                bpw = t->bits_per_word;
+
+                        if (ti_ssp_spi_setup_transfer(hw, bpw, spi->mode) < 0)
+                                break;
+
+                        ti_ssp_spi_chip_select(hw, 1);
+
+                        xfer_status = ti_ssp_spi_txrx(hw, m, t);
+                        if (xfer_status < 0)
+                                status = xfer_status;
+
+                        if (t->delay_usecs)
+                                udelay(t->delay_usecs);
+
+                        if (t->cs_change)
+                                ti_ssp_spi_chip_select(hw, 0);
+                }
+
+                ti_ssp_spi_chip_select(hw, 0);
+                m->status = status;
+                m->complete(m->context);
+
+                spin_lock(&hw->lock);
+        }
+
+        if (hw->shutdown)
+                complete(&hw->complete);
+
+        spin_unlock(&hw->lock);
+}
+
+static int ti_ssp_spi_setup(struct spi_device *spi)
+{
+        if (spi->bits_per_word > 32)
+                return -EINVAL;
+
+        return 0;
+}
+
+static int ti_ssp_spi_transfer(struct spi_device *spi, struct spi_message *m)
+{
+        struct ti_ssp_spi       *hw;
+        struct spi_transfer     *t;
+        int                     error = 0;
+
+        m->actual_length = 0;
+        m->status = -EINPROGRESS;
+
+        hw = spi_master_get_devdata(spi->master);
+
+        if (list_empty(&m->transfers) || !m->complete)
+                return -EINVAL;
+
+        list_for_each_entry(t, &m->transfers, transfer_list) {
+                if (t->len && !(t->rx_buf || t->tx_buf)) {
+                        dev_err(&spi->dev, "invalid xfer, no buffer\n");
+                        return -EINVAL;
+                }
+
+                if (t->len && t->rx_buf && t->tx_buf) {
+                        dev_err(&spi->dev, "invalid xfer, full duplex\n");
+                        return -EINVAL;
+                }
+
+                if (t->bits_per_word > 32) {
+                        dev_err(&spi->dev, "invalid xfer width %d\n",
+                                t->bits_per_word);
+                        return -EINVAL;
+                }
+        }
+
+        spin_lock(&hw->lock);
+        if (hw->shutdown) {
+                error = -ESHUTDOWN;
+                goto error_unlock;
+        }
+        list_add_tail(&m->queue, &hw->msg_queue);
+        queue_work(hw->workqueue, &hw->work);
+error_unlock:
+        spin_unlock(&hw->lock);
+        return error;
+}
+
+static int __devinit ti_ssp_spi_probe(struct platform_device *pdev)
+{
+        const struct ti_ssp_spi_data *pdata;
+        struct ti_ssp_spi *hw;
+        struct spi_master *master;
+        struct device *dev = &pdev->dev;
+        int error = 0;
+
+        pdata = dev->platform_data;
+        if (!pdata) {
+                dev_err(dev, "platform data not found\n");
+                return -EINVAL;
+        }
+
+        master = spi_alloc_master(dev, sizeof(struct ti_ssp_spi));
+        if (!master) {
+                dev_err(dev, "cannot allocate SPI master\n");
+                return -ENOMEM;
+        }
+
+        hw = spi_master_get_devdata(master);
+        platform_set_drvdata(pdev, hw);
+
+        hw->master = master;
+        hw->dev = dev;
+        hw->select = pdata->select;
+
+        spin_lock_init(&hw->lock);
+        init_completion(&hw->complete);
+        INIT_LIST_HEAD(&hw->msg_queue);
+        INIT_WORK(&hw->work, ti_ssp_spi_work);
+
+        hw->workqueue = create_singlethread_workqueue(dev_name(dev));
+        if (!hw->workqueue) {
+                error = -ENOMEM;
+                dev_err(dev, "work queue creation failed\n");
+                goto error_wq;
+        }
+
+        error = ti_ssp_set_iosel(hw->dev, pdata->iosel);
+        if (error < 0) {
+                dev_err(dev, "io setup failed\n");
+                goto error_iosel;
+        }
+
+        master->bus_num         = pdev->id;
+        master->num_chipselect  = pdata->num_cs;
+        master->mode_bits       = MODE_BITS;
+        master->flags           = SPI_MASTER_HALF_DUPLEX;
+        master->setup           = ti_ssp_spi_setup;
+        master->transfer        = ti_ssp_spi_transfer;
+
+        error = spi_register_master(master);
+        if (error) {
+                dev_err(dev, "master registration failed\n");
+                goto error_reg;
+        }
+
+        return 0;
+
+error_reg:
+error_iosel:
+        destroy_workqueue(hw->workqueue);
+error_wq:
+        spi_master_put(master);
+        return error;
+}
+
+static int __devexit ti_ssp_spi_remove(struct platform_device *pdev)
+{
+        struct ti_ssp_spi *hw = platform_get_drvdata(pdev);
+        int error;
+
+        hw->shutdown = 1;
+        while (!list_empty(&hw->msg_queue)) {
+                error = wait_for_completion_interruptible(&hw->complete);
+                if (error < 0) {
+                        hw->shutdown = 0;
+                        return error;
+                }
+        }
+        destroy_workqueue(hw->workqueue);
+        spi_unregister_master(hw->master);
+
+        return 0;
+}
+
+static struct platform_driver ti_ssp_spi_driver = {
+        .probe          = ti_ssp_spi_probe,
+        .remove         = __devexit_p(ti_ssp_spi_remove),
+        .driver         = {
+                .name   = "ti-ssp-spi",
+                .owner  = THIS_MODULE,
+        },
+};
+
+static int __init ti_ssp_spi_init(void)
+{
+        return platform_driver_register(&ti_ssp_spi_driver);
+}
+module_init(ti_ssp_spi_init);
+
+static void __exit ti_ssp_spi_exit(void)
+{
+        platform_driver_unregister(&ti_ssp_spi_driver);
+}
+module_exit(ti_ssp_spi_exit);
+
+MODULE_DESCRIPTION("SSP SPI Master");
+MODULE_AUTHOR("Cyril Chemparathy");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:ti-ssp-spi");
diff --git a/drivers/spi/xilinx_spi.c b/drivers/spi/xilinx_spi.c
index 7adaef62a991..4d2c75df886c 100644
--- a/drivers/spi/xilinx_spi.c
+++ b/drivers/spi/xilinx_spi.c
@@ -351,14 +351,12 @@ static irqreturn_t xilinx_spi_irq(int irq, void *dev_id)
         return IRQ_HANDLED;
 }
 
-#ifdef CONFIG_OF
 static const struct of_device_id xilinx_spi_of_match[] = {
         { .compatible = "xlnx,xps-spi-2.00.a", },
         { .compatible = "xlnx,xps-spi-2.00.b", },
         {}
 };
 MODULE_DEVICE_TABLE(of, xilinx_spi_of_match);
-#endif
 
 struct spi_master *xilinx_spi_init(struct device *dev, struct resource *mem,
         u32 irq, s16 bus_num, int num_cs, int little_endian, int bits_per_word)
@@ -394,9 +392,7 @@ struct spi_master *xilinx_spi_init(struct device *dev, struct resource *mem,
 
         master->bus_num = bus_num;
         master->num_chipselect = num_cs;
-#ifdef CONFIG_OF
         master->dev.of_node = dev->of_node;
-#endif
 
         xspi->mem = *mem;
         xspi->irq = irq;
@@ -539,9 +535,7 @@ static struct platform_driver xilinx_spi_driver = {
         .driver = {
                 .name = XILINX_SPI_NAME,
                 .owner = THIS_MODULE,
-#ifdef CONFIG_OF
                 .of_match_table = xilinx_spi_of_match,
-#endif
         },
 };