1 files changed, 25 insertions, 19 deletions

diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index 0037e31076ba..913abd7c172f 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -49,24 +49,24 @@
 #define OMAP_I2C_TIMEOUT (msecs_to_jiffies(1000))
 
 #define OMAP_I2C_REV_REG                0x00
-#define OMAP_I2C_IE_REG                 0x04
-#define OMAP_I2C_STAT_REG               0x08
-#define OMAP_I2C_IV_REG                 0x0c
+#define OMAP_I2C_IE_REG                 0x01
+#define OMAP_I2C_STAT_REG               0x02
+#define OMAP_I2C_IV_REG                 0x03
 /* For OMAP3 I2C_IV has changed to I2C_WE (wakeup enable) */
-#define OMAP_I2C_WE_REG                 0x0c
-#define OMAP_I2C_SYSS_REG               0x10
-#define OMAP_I2C_BUF_REG                0x14
-#define OMAP_I2C_CNT_REG                0x18
-#define OMAP_I2C_DATA_REG               0x1c
-#define OMAP_I2C_SYSC_REG               0x20
-#define OMAP_I2C_CON_REG                0x24
-#define OMAP_I2C_OA_REG                 0x28
-#define OMAP_I2C_SA_REG                 0x2c
-#define OMAP_I2C_PSC_REG                0x30
-#define OMAP_I2C_SCLL_REG               0x34
-#define OMAP_I2C_SCLH_REG               0x38
-#define OMAP_I2C_SYSTEST_REG            0x3c
-#define OMAP_I2C_BUFSTAT_REG            0x40
+#define OMAP_I2C_WE_REG                 0x03
+#define OMAP_I2C_SYSS_REG               0x04
+#define OMAP_I2C_BUF_REG                0x05
+#define OMAP_I2C_CNT_REG                0x06
+#define OMAP_I2C_DATA_REG               0x07
+#define OMAP_I2C_SYSC_REG               0x08
+#define OMAP_I2C_CON_REG                0x09
+#define OMAP_I2C_OA_REG                 0x0a
+#define OMAP_I2C_SA_REG                 0x0b
+#define OMAP_I2C_PSC_REG                0x0c
+#define OMAP_I2C_SCLL_REG               0x0d
+#define OMAP_I2C_SCLH_REG               0x0e
+#define OMAP_I2C_SYSTEST_REG            0x0f
+#define OMAP_I2C_BUFSTAT_REG            0x10
 
 /* I2C Interrupt Enable Register (OMAP_I2C_IE): */
 #define OMAP_I2C_IE_XDR         (1 << 14)       /* TX Buffer drain int enable */
@@ -161,6 +161,7 @@ struct omap_i2c_dev {
         struct device           *dev;
         void __iomem            *base;          /* virtual */
         int                     irq;
+        int                     reg_shift;      /* bit shift for I2C register addresses */
         struct clk              *iclk;          /* Interface clock */
         struct clk              *fclk;          /* Functional clock */
         struct completion       cmd_complete;
@@ -189,12 +190,12 @@ struct omap_i2c_dev {
 static inline void omap_i2c_write_reg(struct omap_i2c_dev *i2c_dev,
                                       int reg, u16 val)
 {
-        __raw_writew(val, i2c_dev->base + reg);
+        __raw_writew(val, i2c_dev->base + (reg << i2c_dev->reg_shift));
 }
 
 static inline u16 omap_i2c_read_reg(struct omap_i2c_dev *i2c_dev, int reg)
 {
-        return __raw_readw(i2c_dev->base + reg);
+        return __raw_readw(i2c_dev->base + (reg << i2c_dev->reg_shift));
 }
 
 static int __init omap_i2c_get_clocks(struct omap_i2c_dev *dev)
@@ -924,6 +925,11 @@ omap_i2c_probe(struct platform_device *pdev)
                 dev->b_hw = 1; /* Enable hardware fixes */
         }
 
+        if (cpu_is_omap7xx())
+                dev->reg_shift = 1;
+        else
+                dev->reg_shift = 2;
+
         /* reset ASAP, clearing any IRQs */
         omap_i2c_init(dev);