[ARM] pxa: add platform device ID table to pxa i2c driver

Signed-off-by: Eric Miao <eric.miao@marvell.com>

1 files changed, 18 insertions, 2 deletions

diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c
index acc7143d9655..e4ee8835b97f 100644
--- a/drivers/i2c/busses/i2c-pxa.c
+++ b/drivers/i2c/busses/i2c-pxa.c
@@ -34,12 +34,26 @@
 #include <linux/err.h>
 #include <linux/clk.h>
 
-#include <mach/hardware.h>
 #include <asm/irq.h>
 #include <asm/io.h>
 #include <mach/i2c.h>
 
 /*
+ * I2C register offsets will be shifted 0 or 1 bit left, depending on
+ * different SoCs
+ */
+#define REG_SHIFT_0     (0 << 0)
+#define REG_SHIFT_1     (1 << 0)
+#define REG_SHIFT(d)    ((d) & 0x1)
+
+static const struct platform_device_id i2c_pxa_id_table[] = {
+        { "pxa2xx-i2c",         REG_SHIFT_1 },
+        { "pxa3xx-pwri2c",      REG_SHIFT_0 },
+        { },
+};
+MODULE_DEVICE_TABLE(platform, i2c_pxa_id_table);
+
+/*
  * I2C registers and bit definitions
  */
 #define IBMR            (0x00)
@@ -985,6 +999,7 @@ static int i2c_pxa_probe(struct platform_device *dev)
         struct pxa_i2c *i2c;
         struct resource *res;
         struct i2c_pxa_platform_data *plat = dev->dev.platform_data;
+        struct platform_device_id *id = platform_get_device_id(dev);
         int ret;
         int irq;
 
@@ -1028,7 +1043,7 @@ static int i2c_pxa_probe(struct platform_device *dev)
                 ret = -EIO;
                 goto eremap;
         }
-        i2c->reg_shift = (cpu_is_pxa3xx() && (dev->id == 1)) ? 0 : 1;
+        i2c->reg_shift = REG_SHIFT(id->driver_data);
 
         i2c->iobase = res->start;
         i2c->iosize = res_len(res);
@@ -1150,6 +1165,7 @@ static struct platform_driver i2c_pxa_driver = {
                 .name   = "pxa2xx-i2c",
                 .owner  = THIS_MODULE,
         },
+        .id_table       = i2c_pxa_id_table,
 };
 
 static int __init i2c_adap_pxa_init(void)