X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=blobdiff_plain;f=drivers%2Fi2c%2Fbusses%2Fi2c-omap.c;h=6bd0f19cd451c69a38cbd48b7b7022b280dc6836;hp=0037e31076bad86502442a95ed9d95206bdbde0e;hb=5a0e3ad6af8660be21ca98a971cd00f331318c05;hpb=a4c89051c83693e6cd5655b90300ec23a35e04f1

diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index 0037e31076ba..6bd0f19cd451 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -37,6 +37,7 @@
 #include <linux/platform_device.h>
 #include <linux/clk.h>
 #include <linux/io.h>
+#include <linux/slab.h>
 
 /* I2C controller revisions */
 #define OMAP_I2C_REV_2			0x20
@@ -49,24 +50,24 @@
 #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 +162,7 @@ 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 +191,12 @@ 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)
@@ -849,7 +851,7 @@ static const struct i2c_algorithm omap_i2c_algo = {
 	.functionality	= omap_i2c_func,
 };
 
-static int __init
+static int __devinit
 omap_i2c_probe(struct platform_device *pdev)
 {
 	struct omap_i2c_dev	*dev;
@@ -924,6 +926,11 @@ 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);