[ARM]: tegra: enable gyro interrupts

initial ODR set at 100Hz
enable DRDY (data ready) interrupt in gyro
enable Block Data Update (BDU)

Change-Id: I5cd5762644aeb90db4fe66259fe0edb8324d941b
Signed-off-by: makarand.karvekar <makarand.karvekar@motorola.com>

diff --git a/arch/arm/mach-tegra/board-stingray-sensors.c b/arch/arm/mach-tegra/board-stingray-sensors.c
index e12d36c722bd8ee4e5d6a734d7d6e22f77bce79a..6aba197318071a90ebc065f98a4293c53030d3e3 100755 (executable)
--- a/arch/arm/mach-tegra/board-stingray-sensors.c
+++ b/arch/arm/mach-tegra/board-stingray-sensors.c
@@ -41,7 +41,7 @@
 #define KXTF9_IRQ_GPIO         TEGRA_GPIO_PV3
 #define MAX9635_IRQ_GPIO       TEGRA_GPIO_PV1
 #define BMP085_IRQ_GPIO                TEGRA_GPIO_PW0
-#define L3G4200D_IRQ_GPIO      TEGRA_GPIO_PH2
+#define L3G4200D_DRDY_GPIO     TEGRA_GPIO_PH3
 #define AKM8975_IRQ_GPIO       TEGRA_GPIO_PQ2
 #define LM3559_RESETN_GPIO     TEGRA_GPIO_PT4
 #define OV5650_RESETN_GPIO     TEGRA_GPIO_PD2
@@ -285,20 +285,20 @@ static int stingray_max9635_init(void)
 
 static int stingray_l3g4200d_init(void)
 {
-       tegra_gpio_enable(L3G4200D_IRQ_GPIO);
-       gpio_request(L3G4200D_IRQ_GPIO, "l3g4200d_irq");
-       gpio_direction_input(L3G4200D_IRQ_GPIO);
+       tegra_gpio_enable(L3G4200D_DRDY_GPIO);
+       gpio_request(L3G4200D_DRDY_GPIO, "l3g4200d_irq");
+       gpio_direction_input(L3G4200D_DRDY_GPIO);
        return 0;
 }
 
 struct l3g4200d_platform_data stingray_gyro_pdata = {
-       .poll_interval = 200,
-       .min_interval = 20,
+       .poll_interval = 10,
+       .gpio_drdy = L3G4200D_DRDY_GPIO,
 
-       .ctrl_reg1 = 0xff,      /* ODR800 */
+       .ctrl_reg1 = 0x1f,      /* ODR100 */
        .ctrl_reg2 = 0x00,
-       .ctrl_reg3 = 0x00,
-       .ctrl_reg4 = 0x20,      /* 2000 dps */
+       .ctrl_reg3 = 0x08,      /* Enable DRDY interrupt */
+       .ctrl_reg4 = 0xA0,      /* BDU enable, 2000 dps */
        .ctrl_reg5 = 0x00,
        .reference = 0x00,
        .fifo_ctrl_reg = 0x00,
@@ -405,7 +405,7 @@ static struct i2c_board_info __initdata stingray_i2c_bus3_sensor_info[] = {
         {
                I2C_BOARD_INFO(L3G4200D_NAME, 0x68),
                .platform_data = &stingray_gyro_pdata,
-               .irq = TEGRA_GPIO_TO_IRQ(L3G4200D_IRQ_GPIO),
+               .irq = TEGRA_GPIO_TO_IRQ(L3G4200D_DRDY_GPIO),
         },
 
         {