diff options
| author | Nitin Kumbhar <nkumbhar@nvidia.com> | 2011-05-02 17:19:36 +0530 |
|---|---|---|
| committer | Varun Colbert <vcolbert@nvidia.com> | 2011-05-02 18:04:35 -0700 |
| commit | 2625b09d0e176c6ae1c4cd779ec1bb9f23c57e0b (patch) | |
| tree | e81a9deeae11fc1d435f37a872db2db42ef6851d | |
| parent | c53b7eb26bee96fd7927e94848055af94baa831b (diff) | |
arm: tegra: ventana: switch on supply only when camera is opened
LDO_SHDN_L signals control AVDD_2P8V and VDD_AF_2P8V supplies to
camera sensor modules. Power on these supplies only when camera
is in use.
BUG 782390
Change-Id: Ifefbb0b4da0b9213c4a2f76b51bcd3f2bbeb745d
Reviewed-on: http://git-master/r/30015
Tested-by: Nitin Kumbhar <nkumbhar@nvidia.com>
Reviewed-by: Pritesh Raithatha <praithatha@nvidia.com>
Reviewed-by: Erik M Lilliebjerg <elilliebjerg@nvidia.com>
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
| -rw-r--r-- | arch/arm/mach-tegra/board-ventana-sensors.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/arch/arm/mach-tegra/board-ventana-sensors.c b/arch/arm/mach-tegra/board-ventana-sensors.c index 6bc3d7d38bcd..666eeb4f8ef3 100644 --- a/arch/arm/mach-tegra/board-ventana-sensors.c +++ b/arch/arm/mach-tegra/board-ventana-sensors.c @@ -74,6 +74,8 @@ static int ventana_left_ov5650_power_on(void) { gpio_direction_output(CAMERA_CSI_MUX_SEL_GPIO, 0); gpio_direction_output(AVDD_DSI_CSI_ENB_GPIO, 1); + gpio_direction_output(CAM2_LDO_SHUTDN_L_GPIO, 1); + mdelay(5); gpio_direction_output(CAM2_PWR_DN_GPIO, 0); mdelay(5); gpio_direction_output(CAM2_RST_L_GPIO, 0); @@ -88,6 +90,7 @@ static int ventana_left_ov5650_power_off(void) gpio_direction_output(AVDD_DSI_CSI_ENB_GPIO, 0); gpio_direction_output(CAM2_RST_L_GPIO, 0); gpio_direction_output(CAM2_PWR_DN_GPIO, 1); + gpio_direction_output(CAM2_LDO_SHUTDN_L_GPIO, 0); return 0; } @@ -129,6 +132,8 @@ static int ventana_ov2710_power_on(void) { gpio_direction_output(CAMERA_CSI_MUX_SEL_GPIO, 1); gpio_direction_output(AVDD_DSI_CSI_ENB_GPIO, 1); + gpio_direction_output(CAM3_LDO_SHUTDN_L_GPIO, 1); + mdelay(5); gpio_direction_output(CAM3_PWR_DN_GPIO, 0); mdelay(5); gpio_direction_output(CAM3_RST_L_GPIO, 0); @@ -142,6 +147,7 @@ static int ventana_ov2710_power_off(void) { gpio_direction_output(CAM3_RST_L_GPIO, 0); gpio_direction_output(CAM3_PWR_DN_GPIO, 1); + gpio_direction_output(CAM3_LDO_SHUTDN_L_GPIO, 0); gpio_direction_output(AVDD_DSI_CSI_ENB_GPIO, 0); gpio_direction_output(CAMERA_CSI_MUX_SEL_GPIO, 0); return 0; @@ -455,17 +461,17 @@ static struct tegra_camera_gpios ventana_camera_gpio_keys[] = { [0] = TEGRA_CAMERA_GPIO("en_avdd_csi", AVDD_DSI_CSI_ENB_GPIO, 1), [1] = TEGRA_CAMERA_GPIO("cam_i2c_mux_rst_lo", CAM_I2C_MUX_RST_GPIO, 1), - [2] = TEGRA_CAMERA_GPIO("cam2_ldo_shdn_lo", CAM2_LDO_SHUTDN_L_GPIO, 1), + [2] = TEGRA_CAMERA_GPIO("cam2_ldo_shdn_lo", CAM2_LDO_SHUTDN_L_GPIO, 0), [3] = TEGRA_CAMERA_GPIO("cam2_af_pwdn_lo", CAM2_AF_PWR_DN_L_GPIO, 0), [4] = TEGRA_CAMERA_GPIO("cam2_pwdn", CAM2_PWR_DN_GPIO, 0), [5] = TEGRA_CAMERA_GPIO("cam2_rst_lo", CAM2_RST_L_GPIO, 1), - [6] = TEGRA_CAMERA_GPIO("cam3_ldo_shdn_lo", CAM3_LDO_SHUTDN_L_GPIO, 1), + [6] = TEGRA_CAMERA_GPIO("cam3_ldo_shdn_lo", CAM3_LDO_SHUTDN_L_GPIO, 0), [7] = TEGRA_CAMERA_GPIO("cam3_af_pwdn_lo", CAM3_AF_PWR_DN_L_GPIO, 0), [8] = TEGRA_CAMERA_GPIO("cam3_pwdn", CAM3_PWR_DN_GPIO, 0), [9] = TEGRA_CAMERA_GPIO("cam3_rst_lo", CAM3_RST_L_GPIO, 1), - [10] = TEGRA_CAMERA_GPIO("cam1_ldo_shdn_lo", CAM1_LDO_SHUTDN_L_GPIO, 1), + [10] = TEGRA_CAMERA_GPIO("cam1_ldo_shdn_lo", CAM1_LDO_SHUTDN_L_GPIO, 0), [11] = TEGRA_CAMERA_GPIO("cam1_af_pwdn_lo", CAM1_AF_PWR_DN_L_GPIO, 0), [12] = TEGRA_CAMERA_GPIO("cam1_pwdn", CAM1_PWR_DN_GPIO, 0), [13] = TEGRA_CAMERA_GPIO("cam1_rst_lo", CAM1_RST_L_GPIO, 1), |