[ARM] pxa/littleton: add preliminary I2C board info (da9034 + max7320)

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

2 files changed, 81 insertions, 3 deletions

diff --git a/arch/arm/mach-pxa/include/mach/littleton.h b/arch/arm/mach-pxa/include/mach/littleton.h
index 5c4e320c1437..6c9b21c51322 100644
--- a/arch/arm/mach-pxa/include/mach/littleton.h
+++ b/arch/arm/mach-pxa/include/mach/littleton.h
@@ -1,8 +1,13 @@
-#ifndef __ASM_ARCH_ZYLONITE_H
-#define __ASM_ARCH_ZYLONITE_H
+#ifndef __ASM_ARCH_LITTLETON_H
+#define __ASM_ARCH_LITTLETON_H
+
+#include <mach/gpio.h>
 
 #define LITTLETON_ETH_PHYS      0x30000000
 
 #define LITTLETON_GPIO_LCD_CS   (17)
 
-#endif /* __ASM_ARCH_ZYLONITE_H */
+#define EXT0_GPIO_BASE  (NR_BUILTIN_GPIO)
+#define EXT0_GPIO(x)    (EXT0_GPIO_BASE + (x))
+
+#endif /* __ASM_ARCH_LITTLETON_H */
diff --git a/arch/arm/mach-pxa/littleton.c b/arch/arm/mach-pxa/littleton.c
index 5609f52e36b1..31da7f3c06f6 100644
--- a/arch/arm/mach-pxa/littleton.c
+++ b/arch/arm/mach-pxa/littleton.c
@@ -23,6 +23,10 @@
 #include <linux/gpio.h>
 #include <linux/spi/spi.h>
 #include <linux/smc91x.h>
+#include <linux/i2c.h>
+#include <linux/leds.h>
+#include <linux/mfd/da903x.h>
+#include <linux/i2c/max732x.h>
 
 #include <asm/types.h>
 #include <asm/setup.h>
@@ -40,6 +44,7 @@
 #include <mach/pxafb.h>
 #include <mach/ssp.h>
 #include <mach/pxa2xx_spi.h>
+#include <mach/i2c.h>
 #include <mach/pxa27x_keypad.h>
 #include <mach/pxa3xx_nand.h>
 #include <mach/littleton.h>
@@ -314,6 +319,73 @@ static void __init littleton_init_nand(void)
 static inline void littleton_init_nand(void) {}
 #endif /* CONFIG_MTD_NAND_PXA3xx || CONFIG_MTD_NAND_PXA3xx_MODULE */
 
+#if defined(CONFIG_I2C_PXA) || defined(CONFIG_I2C_PXA_MODULE)
+static struct led_info littleton_da9034_leds[] = {
+        [0] = {
+                .name   = "littleton:keypad1",
+                .flags  = DA9034_LED_RAMP,
+        },
+        [1] = {
+                .name   = "littleton:keypad2",
+                .flags  = DA9034_LED_RAMP,
+        },
+        [2] = {
+                .name   = "littleton:vibra",
+                .flags  = 0,
+        },
+};
+
+static struct da903x_subdev_info littleton_da9034_subdevs[] = {
+        {
+                .name           = "da903x-led",
+                .id             = DA9034_ID_LED_1,
+                .platform_data  = &littleton_da9034_leds[0],
+        }, {
+                .name           = "da903x-led",
+                .id             = DA9034_ID_LED_2,
+                .platform_data  = &littleton_da9034_leds[1],
+        }, {
+                .name           = "da903x-led",
+                .id             = DA9034_ID_VIBRA,
+                .platform_data  = &littleton_da9034_leds[2],
+        }, {
+                .name           = "da903x-backlight",
+                .id             = DA9034_ID_WLED,
+        },
+};
+
+static struct da903x_platform_data littleton_da9034_info = {
+        .num_subdevs    = ARRAY_SIZE(littleton_da9034_subdevs),
+        .subdevs        = littleton_da9034_subdevs,
+};
+
+static struct max732x_platform_data littleton_max7320_info = {
+        .gpio_base      = EXT0_GPIO_BASE,
+};
+
+static struct i2c_board_info littleton_i2c_info[] = {
+        [0] = {
+                .type           = "da9034",
+                .addr           = 0x34,
+                .platform_data  = &littleton_da9034_info,
+                .irq            = gpio_to_irq(mfp_to_gpio(MFP_PIN_GPIO18)),
+        },
+        [1] = {
+                .type           = "max7320",
+                .addr           = 0x50,
+                .platform_data  = &littleton_max7320_info,
+        },
+};
+
+static void __init littleton_init_i2c(void)
+{
+        pxa_set_i2c_info(NULL);
+        i2c_register_board_info(0, ARRAY_AND_SIZE(littleton_i2c_info));
+}
+#else
+static inline void littleton_init_i2c(void) {}
+#endif /* CONFIG_I2C_PXA || CONFIG_I2C_PXA_MODULE */
+
 static void __init littleton_init(void)
 {
         /* initialize MFP configurations */
@@ -326,6 +398,7 @@ static void __init littleton_init(void)
         platform_device_register(&smc91x_device);
 
         littleton_init_spi();
+        littleton_init_i2c();
         littleton_init_lcd();
         littleton_init_keypad();
         littleton_init_nand();