ARM: tegra: ventana: SSL3250A board level support.

Add board level support for camera SSL3250A flash.

Bug 778859

Original-Change-Id: I7375757546d7ed54dace9f9cd03adeee84959126
Reviewed-on: http://git-master/r/26903
Reviewed-by: Varun Colbert <vcolbert@nvidia.com>
Tested-by: Varun Colbert <vcolbert@nvidia.com>

Rebase-Id: Rc70a0c3f24d788455cef90068d06cb8cb771dce9

1 files changed, 64 insertions, 0 deletions

diff --git a/arch/arm/mach-tegra/board-ventana-sensors.c b/arch/arm/mach-tegra/board-ventana-sensors.c
index 57af9431f5f9..2157db9c86cc 100644
--- a/arch/arm/mach-tegra/board-ventana-sensors.c
+++ b/arch/arm/mach-tegra/board-ventana-sensors.c
@@ -31,6 +31,7 @@
 
 #include <media/ov5650.h>
 #include <media/ov2710.h>
+#include <media/ssl3250a.h>
 #include <generated/mach-types.h>
 
 #include "gpio-names.h"
@@ -41,8 +42,14 @@
 #define AKM8975_IRQ_GPIO	TEGRA_GPIO_PN5
 #define CAMERA_POWER_GPIO	TEGRA_GPIO_PV4
 #define CAMERA_CSI_MUX_SEL_GPIO	TEGRA_GPIO_PBB4
+#define CAMERA_FLASH_ACT_GPIO	TEGRA_GPIO_PD2
+#define CAMERA_FLASH_STRB_GPIO	TEGRA_GPIO_PA0
 #define AC_PRESENT_GPIO		TEGRA_GPIO_PV3
 #define NCT1008_THERM2_GPIO	TEGRA_GPIO_PN6
+#define CAMERA_FLASH_OP_MODE		0 /*0=I2C mode, 1=GPIO mode*/
+#define CAMERA_FLASH_MAX_LED_AMP	7
+#define CAMERA_FLASH_MAX_TORCH_AMP	11
+#define CAMERA_FLASH_MAX_FLASH_AMP	31
 
 extern void tegra_throttling_enable(bool enable);
 
@@ -144,6 +151,53 @@ struct ov2710_platform_data ventana_ov2710_data = {
 	.power_off = ventana_ov2710_power_off,
 };
 
+static int ventana_ssl3250a_init(void)
+{
+	gpio_request(CAMERA_FLASH_ACT_GPIO, "torch_gpio_act");
+	gpio_direction_output(CAMERA_FLASH_ACT_GPIO, 0);
+	tegra_gpio_enable(CAMERA_FLASH_ACT_GPIO);
+	gpio_request(CAMERA_FLASH_STRB_GPIO, "torch_gpio_strb");
+	gpio_direction_output(CAMERA_FLASH_STRB_GPIO, 0);
+	tegra_gpio_enable(CAMERA_FLASH_STRB_GPIO);
+	gpio_export(CAMERA_FLASH_STRB_GPIO, false);
+	return 0;
+}
+
+static void ventana_ssl3250a_exit(void)
+{
+	gpio_set_value(CAMERA_FLASH_STRB_GPIO, 0);
+	gpio_free(CAMERA_FLASH_STRB_GPIO);
+	tegra_gpio_disable(CAMERA_FLASH_STRB_GPIO);
+	gpio_set_value(CAMERA_FLASH_ACT_GPIO, 0);
+	gpio_free(CAMERA_FLASH_ACT_GPIO);
+	tegra_gpio_disable(CAMERA_FLASH_ACT_GPIO);
+}
+
+static int ventana_ssl3250a_gpio_strb(int val)
+{
+	gpio_set_value(CAMERA_FLASH_STRB_GPIO, val);
+	return 0;
+};
+
+static int ventana_ssl3250a_gpio_act(int val)
+{
+	gpio_set_value(CAMERA_FLASH_ACT_GPIO, val);
+	return 0;
+};
+
+static struct ssl3250a_platform_data ventana_ssl3250a_data = {
+	.config		= CAMERA_FLASH_OP_MODE,
+	.max_amp_indic	= CAMERA_FLASH_MAX_LED_AMP,
+	.max_amp_torch	= CAMERA_FLASH_MAX_TORCH_AMP,
+	.max_amp_flash	= CAMERA_FLASH_MAX_FLASH_AMP,
+	.init		= ventana_ssl3250a_init,
+	.exit		= ventana_ssl3250a_exit,
+	.gpio_act	= ventana_ssl3250a_gpio_act,
+	.gpio_en1	= NULL,
+	.gpio_en2	= NULL,
+	.gpio_strb	= ventana_ssl3250a_gpio_strb,
+};
+
 static void ventana_isl29018_init(void)
 {
 	tegra_gpio_enable(ISL29018_IRQ_GPIO);
@@ -227,6 +281,13 @@ static const struct i2c_board_info ventana_i2c3_board_info_pca9546[] = {
 	},
 };
 
+static const struct i2c_board_info ventana_i2c3_board_info_ssl3250a[] = {
+	{
+		I2C_BOARD_INFO("ssl3250a", 0x30),
+		.platform_data = &ventana_ssl3250a_data,
+	},
+};
+
 static struct i2c_board_info ventana_i2c4_board_info[] = {
 	{
 		I2C_BOARD_INFO("nct1008", 0x4C),
@@ -287,6 +348,9 @@ int __init ventana_sensors_init(void)
 			ARRAY_SIZE(ventana_i2c2_board_info));
 	}
 
+	i2c_register_board_info(3, ventana_i2c3_board_info_ssl3250a,
+		ARRAY_SIZE(ventana_i2c3_board_info_ssl3250a));
+
 	i2c_register_board_info(4, ventana_i2c4_board_info,
 		ARRAY_SIZE(ventana_i2c4_board_info));