[ARM] tegra: stingray: Add akm8975 magnetometer data

Signed-off-by: Praveen Bharathi <pbharathi@motorola.com>
Change-Id: If3fa5e2b624dd164252df8dd73c1063306637734

diff --git a/arch/arm/mach-tegra/board-stingray-sensors.c b/arch/arm/mach-tegra/board-stingray-sensors.c
index 5a8770810b6017cbbff7e1ff1b5ab21c6682e8f7..7681db795506d221cf50dc0c0757721a13e4b012 100755 (executable)
--- a/arch/arm/mach-tegra/board-stingray-sensors.c
+++ b/arch/arm/mach-tegra/board-stingray-sensors.c
@@ -25,6 +25,7 @@
 #include <linux/kxtf9.h>
 #include <linux/l3g4200d.h>
 #include <linux/max9635.h>
+#include <linux/akm8975.h>
 #include <linux/platform_device.h>
 
 #include <linux/regulator/consumer.h>
@@ -37,6 +38,7 @@
 #define MAX9635_IRQ_GPIO       TEGRA_GPIO_PV1
 #define BMP085_IRQ_GPIO                TEGRA_GPIO_PW0
 #define L3G4200D_IRQ_GPIO      TEGRA_GPIO_PH2
+#define AKM8975_IRQ_GPIO       TEGRA_GPIO_PQ2
 
 static struct regulator *stingray_bmp085_regulator;
 static int stingray_bmp085_init(void)
@@ -153,6 +155,7 @@ struct kxtf9_platform_data stingray_kxtf9_pdata = {
        .negate_y       = 0,
        .negate_z       = 1,
 
+
        .data_odr_init          = ODR12_5,
        .ctrl_reg1_init         = RES_12BIT | KXTF9_G_2G | TPE | WUFE | TDTE,
        .int_ctrl_init          = IEA | IEN,
@@ -308,7 +311,62 @@ struct l3g4200d_platform_data stingray_gyro_pdata = {
        .power_off = stingray_l3g4200d_power_off,
 
 };
+
+static struct regulator *stingray_akm8975_regulator;
+
+static int stingray_akm8975_init(void)
+{
+       /*struct regulator *reg;*/
+
+       tegra_gpio_enable(AKM8975_IRQ_GPIO);
+       gpio_request(AKM8975_IRQ_GPIO, "akm8975");
+       gpio_direction_input(AKM8975_IRQ_GPIO);
+
+/*TO DO: add regulator calls later
+       reg = regulator_get(NULL, "vhvio");
+       if (IS_ERR(reg))
+               return PTR_ERR(reg);
+       stingray_akm8975_regulator = reg;*/
+       stingray_akm8975_regulator = NULL;
+
+       return 0;
+}
+
+static void stingray_akm8975_exit(void)
+{
+       if (stingray_akm8975_regulator)
+               regulator_put(stingray_akm8975_regulator);
+       gpio_free(AKM8975_IRQ_GPIO);
+       return;
+}
+
+static int stingray_akm8975_power_on(void)
+{
+       if (stingray_akm8975_regulator)
+               regulator_put(stingray_akm8975_regulator);
+       return 0;
+}
+
+static int stingray_akm8975_power_off(void)
+{
+       if (stingray_akm8975_regulator)
+               regulator_put(stingray_akm8975_regulator);
+       return 0;
+}
+
+struct akm8975_platform_data stingray_akm8975_pdata = {
+       .init = stingray_akm8975_init,
+       .exit = stingray_akm8975_exit,
+       .power_on = stingray_akm8975_power_on,
+       .power_off = stingray_akm8975_power_off,
+};
+
 static struct i2c_board_info __initdata stingray_i2c_bus4_sensor_info[] = {
+       {
+               I2C_BOARD_INFO("akm8975", 0x0C),
+               .platform_data = &stingray_akm8975_pdata,
+               .irq = TEGRA_GPIO_TO_IRQ(AKM8975_IRQ_GPIO),
+       },
        {
                I2C_BOARD_INFO("kxtf9", 0x0F),
                .platform_data = &stingray_kxtf9_pdata,
@@ -342,6 +400,7 @@ int __init stingray_sensors_init(void)
        stingray_kxtf9_init();
        stingray_max9635_init();
        stingray_l3g4200d_init();
+       stingray_akm8975_init();
 
        i2c_register_board_info(3, stingray_i2c_bus4_sensor_info,
                ARRAY_SIZE(stingray_i2c_bus4_sensor_info));