ARM: SAMSUNG: Add support for S5K6AAFX camera on Nuri board

Add voltage regulator and platform data definitions for S5K6AAFX
sensor driver and configure I2C6 bus timings.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: HeungJun Kim <riverful.kim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

1 files changed, 65 insertions, 0 deletions

diff --git a/arch/arm/mach-exynos/mach-nuri.c b/arch/arm/mach-exynos/mach-nuri.c
index 165c87638895..cc8d2f6bab2b 100644
--- a/arch/arm/mach-exynos/mach-nuri.c
+++ b/arch/arm/mach-exynos/mach-nuri.c
@@ -28,6 +28,7 @@
 
 #include <video/platform_lcd.h>
 #include <media/m5mols.h>
+#include <media/s5k6aa.h>
 #include <media/s5p_fimc.h>
 #include <media/v4l2-mediabus.h>
 
@@ -75,6 +76,7 @@ enum fixed_regulator_id {
         FIXED_REG_ID_MAX8903,
         FIXED_REG_ID_CAM_A28V,
         FIXED_REG_ID_CAM_12V,
+        FIXED_REG_ID_CAM_VT_15V,
 };
 
 static struct s3c2410_uartcfg nuri_uartcfgs[] __initdata = {
@@ -399,6 +401,9 @@ static struct regulator_consumer_supply __initdata max8997_ldo4_[] = {
 static struct regulator_consumer_supply __initdata max8997_ldo5_[] = {
         REGULATOR_SUPPLY("vhsic", "modemctl"), /* MODEM */
 };
+static struct regulator_consumer_supply nuri_max8997_ldo6_consumer[] = {
+        REGULATOR_SUPPLY("vdd_reg", "6-003c"), /* S5K6AA camera */
+};
 static struct regulator_consumer_supply __initdata max8997_ldo7_[] = {
         REGULATOR_SUPPLY("dig_18", "0-001f"), /* HCD803 */
 };
@@ -546,6 +551,8 @@ static struct regulator_init_data __initdata max8997_ldo6_data = {
                         .enabled        = 1,
                 },
         },
+        .num_consumer_supplies  = ARRAY_SIZE(nuri_max8997_ldo6_consumer),
+        .consumer_supplies      = nuri_max8997_ldo6_consumer,
 };
 
 static struct regulator_init_data __initdata max8997_ldo7_data = {
@@ -1116,7 +1123,30 @@ static void __init nuri_ehci_init(void)
 }
 
 /* CAMERA */
+static struct regulator_consumer_supply cam_vt_cam15_supply =
+        REGULATOR_SUPPLY("vdd_core", "6-003c");
+
+static struct regulator_init_data cam_vt_cam15_reg_init_data = {
+        .constraints = { .valid_ops_mask = REGULATOR_CHANGE_STATUS },
+        .num_consumer_supplies = 1,
+        .consumer_supplies = &cam_vt_cam15_supply,
+};
+
+static struct fixed_voltage_config cam_vt_cam15_fixed_voltage_cfg = {
+        .supply_name    = "VT_CAM_1.5V",
+        .microvolts     = 1500000,
+        .gpio           = EXYNOS4_GPE2(2), /* VT_CAM_1.5V_EN */
+        .enable_high    = 1,
+        .init_data      = &cam_vt_cam15_reg_init_data,
+};
+
+static struct platform_device cam_vt_cam15_fixed_rdev = {
+        .name = "reg-fixed-voltage", .id = FIXED_REG_ID_CAM_VT_15V,
+        .dev = { .platform_data = &cam_vt_cam15_fixed_voltage_cfg },
+};
+
 static struct regulator_consumer_supply cam_vdda_supply[] = {
+        REGULATOR_SUPPLY("vdda", "6-003c"),
         REGULATOR_SUPPLY("a_sensor", "0-001f"),
 };
 
@@ -1173,6 +1203,21 @@ static struct s5p_platform_mipi_csis mipi_csis_platdata = {
 
 #define GPIO_CAM_MEGA_RST       EXYNOS4_GPY3(7) /* ISP_RESET */
 #define GPIO_CAM_8M_ISP_INT     EXYNOS4_GPL2(5)
+#define GPIO_CAM_VT_NSTBY       EXYNOS4_GPL2(0)
+#define GPIO_CAM_VT_NRST        EXYNOS4_GPL2(1)
+
+static struct s5k6aa_platform_data s5k6aa_pldata = {
+        .mclk_frequency = 24000000UL,
+        .gpio_reset     = { GPIO_CAM_VT_NRST, 0 },
+        .gpio_stby      = { GPIO_CAM_VT_NSTBY, 0 },
+        .bus_type       = V4L2_MBUS_PARALLEL,
+        .horiz_flip     = 1,
+};
+
+static struct i2c_board_info s5k6aa_board_info = {
+        I2C_BOARD_INFO("S5K6AA", 0x3c),
+        .platform_data = &s5k6aa_pldata,
+};
 
 static struct m5mols_platform_data m5mols_platdata = {
         .gpio_reset = GPIO_CAM_MEGA_RST,
@@ -1185,6 +1230,13 @@ static struct i2c_board_info m5mols_board_info = {
 
 static struct s5p_fimc_isp_info nuri_camera_sensors[] = {
         {
+                .flags          = V4L2_MBUS_PCLK_SAMPLE_RISING |
+                                  V4L2_MBUS_VSYNC_ACTIVE_LOW,
+                .bus_type       = FIMC_ITU_601,
+                .board_info     = &s5k6aa_board_info,
+                .clk_frequency  = 24000000UL,
+                .i2c_bus_num    = 6,
+        }, {
                 .flags          = V4L2_MBUS_PCLK_SAMPLE_FALLING |
                                   V4L2_MBUS_VSYNC_ACTIVE_LOW,
                 .bus_type       = FIMC_MIPI_CSI2,
@@ -1200,6 +1252,8 @@ static struct s5p_platform_fimc fimc_md_platdata = {
 };
 
 static struct gpio nuri_camera_gpios[] = {
+        { GPIO_CAM_VT_NSTBY,    GPIOF_OUT_INIT_LOW, "CAM_VGA_NSTBY" },
+        { GPIO_CAM_VT_NRST,     GPIOF_OUT_INIT_LOW, "CAM_VGA_NRST"  },
         { GPIO_CAM_8M_ISP_INT,  GPIOF_IN,           "8M_ISP_INT"  },
         { GPIO_CAM_MEGA_RST,    GPIOF_OUT_INIT_LOW, "CAM_8M_NRST" },
 };
@@ -1224,6 +1278,8 @@ static void nuri_camera_init(void)
                 pr_err("%s: Failed to configure 8M_ISP_INT GPIO\n", __func__);
 
         /* Free GPIOs controlled directly by the sensor drivers. */
+        gpio_free(GPIO_CAM_VT_NRST);
+        gpio_free(GPIO_CAM_VT_NSTBY);
         gpio_free(GPIO_CAM_MEGA_RST);
 
         if (exynos4_fimc_setup_gpio(S5P_CAMPORT_A)) {
@@ -1234,6 +1290,12 @@ static void nuri_camera_init(void)
         s5p_gpio_set_drvstr(EXYNOS4_GPJ1(3), S5P_GPIO_DRVSTR_LV4);
 }
 
+static struct s3c2410_platform_i2c nuri_i2c6_platdata __initdata = {
+        .frequency      = 400000U,
+        .sda_delay      = 200,
+        .bus_num        = 6,
+};
+
 static struct s3c2410_platform_i2c nuri_i2c0_platdata __initdata = {
         .frequency      = 400000U,
         .sda_delay      = 200,
@@ -1243,6 +1305,7 @@ static struct platform_device *nuri_devices[] __initdata = {
         /* Samsung Platform Devices */
         &s3c_device_i2c5, /* PMIC should initialize first */
         &s3c_device_i2c0,
+        &s3c_device_i2c6,
         &emmc_fixed_voltage,
         &s5p_device_mipi_csis0,
         &s5p_device_fimc0,
@@ -1275,6 +1338,7 @@ static struct platform_device *nuri_devices[] __initdata = {
         &nuri_backlight_device,
         &max8903_fixed_reg_dev,
         &nuri_max8903_device,
+        &cam_vt_cam15_fixed_rdev,
         &cam_vdda_fixed_rdev,
         &cam_8m_12v_fixed_rdev,
 };
@@ -1306,6 +1370,7 @@ static void __init nuri_machine_init(void)
         i2c_register_board_info(5, i2c5_devs, ARRAY_SIZE(i2c5_devs));
         i2c9_devs[I2C9_MAX17042].irq = gpio_to_irq(EXYNOS4_GPX2(3));
         i2c_register_board_info(9, i2c9_devs, ARRAY_SIZE(i2c9_devs));
+        s3c_i2c6_set_platdata(&nuri_i2c6_platdata);
 
         s5p_fimd0_set_platdata(&nuri_fb_pdata);