Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/agpgart

[pandora-kernel.git] / drivers / spi / spi_s3c24xx.c

diff --git a/drivers/spi/spi_s3c24xx.c b/drivers/spi/spi_s3c24xx.c
index 2ebe1fc..651379c 100644 (file)
--- a/drivers/spi/spi_s3c24xx.c
+++ b/drivers/spi/spi_s3c24xx.c
@@ -10,9 +10,6 @@
  *
 */
 
-
-//#define DEBUG
-
 #include <linux/init.h>
 #include <linux/spinlock.h>
 #include <linux/workqueue.h>
@@ -44,6 +41,9 @@ struct s3c24xx_spi {
        int                      len;
        int                      count;
 
+       int                     (*set_cs)(struct s3c2410_spi_info *spi,
+                                         int cs, int pol);
+
        /* data buffers */
        const unsigned char     *tx;
        unsigned char           *rx;
@@ -64,6 +64,11 @@ static inline struct s3c24xx_spi *to_hw(struct spi_device *sdev)
        return spi_master_get_devdata(sdev->master);
 }
 
+static void s3c24xx_spi_gpiocs(struct s3c2410_spi_info *spi, int cs, int pol)
+{
+       s3c2410_gpio_setpin(spi->pin_cs, pol);
+}
+
 static void s3c24xx_spi_chipsel(struct spi_device *spi, int value)
 {
        struct s3c24xx_spi *hw = to_hw(spi);
@@ -72,10 +77,7 @@ static void s3c24xx_spi_chipsel(struct spi_device *spi, int value)
 
        switch (value) {
        case BITBANG_CS_INACTIVE:
-               if (hw->pdata->set_cs)
-                       hw->pdata->set_cs(hw->pdata, value, cspol);
-               else
-                       s3c2410_gpio_setpin(hw->pdata->pin_cs, cspol ^ 1);
+               hw->pdata->set_cs(hw->pdata, spi->chip_select, cspol^1);
                break;
 
        case BITBANG_CS_ACTIVE:
@@ -96,14 +98,9 @@ static void s3c24xx_spi_chipsel(struct spi_device *spi, int value)
                /* write new configration */
 
                writeb(spcon, hw->regs + S3C2410_SPCON);
-
-               if (hw->pdata->set_cs)
-                       hw->pdata->set_cs(hw->pdata, value, cspol);
-               else
-                       s3c2410_gpio_setpin(hw->pdata->pin_cs, cspol);
+               hw->pdata->set_cs(hw->pdata, spi->chip_select, cspol);
 
                break;
-
        }
 }
 
@@ -174,7 +171,7 @@ static int s3c24xx_spi_setup(struct spi_device *spi)
 
 static inline unsigned int hw_txbyte(struct s3c24xx_spi *hw, int count)
 {
-       return hw->tx ? hw->tx[count] : 0xff;
+       return hw->tx ? hw->tx[count] : 0;
 }
 
 static int s3c24xx_spi_txrx(struct spi_device *spi, struct spi_transfer *t)
@@ -330,9 +327,12 @@ static int s3c24xx_spi_probe(struct platform_device *pdev)
        /* setup any gpio we can */
 
        if (!hw->pdata->set_cs) {
+               hw->set_cs = s3c24xx_spi_gpiocs;
+
                s3c2410_gpio_setpin(hw->pdata->pin_cs, 1);
                s3c2410_gpio_cfgpin(hw->pdata->pin_cs, S3C2410_GPIO_OUTPUT);
-       }
+       } else
+               hw->set_cs = hw->pdata->set_cs;
 
        /* register our spi controller */