diff options
| author | Varun Wadekar <vwadekar@nvidia.com> | 2011-07-21 12:15:26 +0530 |
|---|---|---|
| committer | Varun Colbert <vcolbert@nvidia.com> | 2011-07-25 18:46:29 -0700 |
| commit | 70f2a7568287207cd724d85061b3e14a5ccedec2 (patch) | |
| tree | a9b22687563c39855cac5738618555b4d684e0a2 | |
| parent | 7c6296eb8875d336886452657a1fb0886305a93a (diff) | |
arm: tegra: whistler: add tca6416 device
the gpio used for vdd_fuse is powered on
by the i2c expander (GPIO_P02) present on
the pmu board.
Bug 836963
Reviewed-on: http://git-master/r/#change,41738
(cherry picked from commit f0a8261c68a5a7512c940b4098341b98d239580e)
Change-Id: Iea34da2f4d86a55a5fcd8748a8512bee3f3480f6
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Reviewed-on: http://git-master/r/42822
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
| -rw-r--r-- | arch/arm/mach-tegra/board-whistler-sensors.c | 41 |
1 files changed, 39 insertions, 2 deletions
diff --git a/arch/arm/mach-tegra/board-whistler-sensors.c b/arch/arm/mach-tegra/board-whistler-sensors.c index 1f0705550aa4..3ff796722b4d 100644 --- a/arch/arm/mach-tegra/board-whistler-sensors.c +++ b/arch/arm/mach-tegra/board-whistler-sensors.c @@ -40,6 +40,10 @@ #include <linux/err.h> #include <linux/adt7461.h> #include <generated/mach-types.h> +#include <linux/gpio.h> +#include <linux/i2c/pca953x.h> + +#include <mach/tegra_odm_fuses.h> #include "gpio-names.h" #include "cpu-tegra.h" @@ -49,8 +53,11 @@ #define CAMERA2_PWDN_GPIO TEGRA_GPIO_PBB5 #define CAMERA2_RESET_GPIO TEGRA_GPIO_PBB1 #define CAMERA_AF_PD_GPIO TEGRA_GPIO_PT3 -#define CAMERA_FLASH_EN1_GPIO TEGRA_GPIO_PBB4 -#define CAMERA_FLASH_EN2_GPIO TEGRA_GPIO_PA0 +#define CAMERA_FLASH_EN1_GPIO TEGRA_GPIO_PBB4 +#define CAMERA_FLASH_EN2_GPIO TEGRA_GPIO_PA0 + +#define TCA6416_GPIO_BASE (TEGRA_NR_GPIOS) +#define FUSE_POWER_EN_GPIO (TCA6416_GPIO_BASE + 2) #define ADXL34X_IRQ_GPIO TEGRA_GPIO_PAA1 #define ISL29018_IRQ_GPIO TEGRA_GPIO_PK2 @@ -246,6 +253,30 @@ struct soc380_platform_data whistler_soc380_data = { .power_off = whistler_soc380_power_off, }; +static int whistler_fuse_power_en(int enb) +{ + int ret; + + ret = gpio_request(FUSE_POWER_EN_GPIO, "fuse_power_en"); + if (ret) { + pr_err("%s: gpio_request fail (%d)\n", __func__, ret); + return ret; + } + + ret = gpio_direction_output(FUSE_POWER_EN_GPIO, enb); + if (ret) { + pr_err("%s: gpio_direction_output fail (%d)\n", __func__, ret); + return ret; + } + + gpio_free(FUSE_POWER_EN_GPIO); + return 0; +} + +static struct pca953x_platform_data whistler_tca6416_data = { + .gpio_base = TCA6416_GPIO_BASE, +}; + static struct i2c_board_info whistler_i2c3_board_info[] = { { I2C_BOARD_INFO("ov5650", 0x36), @@ -311,6 +342,10 @@ static struct i2c_board_info whistler_i2c4_board_info[] = { .irq = TEGRA_GPIO_TO_IRQ(ADT7461_IRQ_GPIO), .platform_data = &whistler_adt7461_pdata, }, + { + I2C_BOARD_INFO("tca6416", 0x20), + .platform_data = &whistler_tca6416_data, + }, }; int __init whistler_sensors_init(void) @@ -332,6 +367,8 @@ int __init whistler_sensors_init(void) i2c_register_board_info(3, whistler_i2c3_board_info, ARRAY_SIZE(whistler_i2c3_board_info)); + tegra_fuse_regulator_en = whistler_fuse_power_en; + return 0; } |