ARM: davinci: fix GPIO lookup for I2C

The GPIO chip is called davinci_gpio.0 in legacy mode. Fix it, so that
I2C can correctly lookup the recovery gpios.

Note that it is the gpio-davinci driver that sets the gpiochip label to
davinci_gpio.0.

Also, the I2C device uses an id of 1 on DM644x and DM355.

While at it, convert to using GPIO_TO_PIN() for referring to GPIO pin
numbers, like it is done in rest of the board support files.

Fixes: e53537653791 ("i2c/ARM: davinci: Deep refactoring of I2C recovery")
Reviewed-by: David Lechner <david@lechnology.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>

diff --git a/arch/arm/mach-davinci/board-dm355-evm.c b/arch/arm/mach-davinci/board-dm355-evm.c
index 762d296..23ab9e8 100644 (file)
--- a/arch/arm/mach-davinci/board-dm355-evm.c
+++ b/arch/arm/mach-davinci/board-dm355-evm.c
@@ -110,12 +110,15 @@ static struct platform_device davinci_nand_device = {
        },
 };
 
+#define DM355_I2C_SDA_PIN      GPIO_TO_PIN(0, 15)
+#define DM355_I2C_SCL_PIN      GPIO_TO_PIN(0, 14)
+
 static struct gpiod_lookup_table i2c_recovery_gpiod_table = {
-       .dev_id = "i2c_davinci",
+       .dev_id = "i2c_davinci.1",
        .table = {
-               GPIO_LOOKUP("davinci_gpio", 15, "sda",
+               GPIO_LOOKUP("davinci_gpio.0", DM355_I2C_SDA_PIN, "sda",
                            GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
-               GPIO_LOOKUP("davinci_gpio", 14, "scl",
+               GPIO_LOOKUP("davinci_gpio.0", DM355_I2C_SCL_PIN, "scl",
                            GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
        },
 };

diff --git a/arch/arm/mach-davinci/board-dm644x-evm.c b/arch/arm/mach-davinci/board-dm644x-evm.c
index 95b55aa..509e64a 100644 (file)
--- a/arch/arm/mach-davinci/board-dm644x-evm.c
+++ b/arch/arm/mach-davinci/board-dm644x-evm.c
@@ -17,6 +17,7 @@
 #include <linux/i2c.h>
 #include <linux/platform_data/pcf857x.h>
 #include <linux/platform_data/at24.h>
+#include <linux/platform_data/gpio-davinci.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/rawnand.h>
 #include <linux/mtd/partitions.h>
@@ -596,12 +597,15 @@ static struct i2c_board_info __initdata i2c_info[] =  {
        },
 };
 
+#define DM644X_I2C_SDA_PIN     GPIO_TO_PIN(2, 12)
+#define DM644X_I2C_SCL_PIN     GPIO_TO_PIN(2, 11)
+
 static struct gpiod_lookup_table i2c_recovery_gpiod_table = {
-       .dev_id = "i2c_davinci",
+       .dev_id = "i2c_davinci.1",
        .table = {
-               GPIO_LOOKUP("davinci_gpio", 44, "sda",
+               GPIO_LOOKUP("davinci_gpio.0", DM644X_I2C_SDA_PIN, "sda",
                            GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
-               GPIO_LOOKUP("davinci_gpio", 43, "scl",
+               GPIO_LOOKUP("davinci_gpio.0", DM644X_I2C_SCL_PIN, "scl",
                            GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
        },
 };