[PATCH] ARM: EXYNOS4: Add support for M-5MOLS camera on Nuri board

[kgene.kim@samsung.com (Kukjin Kim)]

Sylwester Nawrocki wrote:
> 
> Add voltage regulator and platform data definition for M-5MOLS sensor
> and MIPI-CSI receiver drivers. Add CAM power domain dependencies for
> FIMC device and set up camera port A GPIO. Configure I2C0 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>
> ---
> This is to enable M-5MOLS camera on Exynos4 Nuri board. The patch is
> based of off git://github.com/kgene/linux-samsung.git for-next.
> 
> Thanks,
>  Sylwester
> ---
>  arch/arm/mach-exynos4/Kconfig     |    8 ++
>  arch/arm/mach-exynos4/mach-nuri.c |  158
> +++++++++++++++++++++++++++++++++++++
>  2 files changed, 166 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm/mach-exynos4/Kconfig b/arch/arm/mach-exynos4/Kconfig
> index dd660eb..afa6cb5 100644
> --- a/arch/arm/mach-exynos4/Kconfig
> +++ b/arch/arm/mach-exynos4/Kconfig
> @@ -215,9 +215,15 @@ config MACH_UNIVERSAL_C210
>  config MACH_NURI
>  	bool "Mobile NURI Board"
>  	select CPU_EXYNOS4210
> +	select S5P_GPIO_INT
>  	select S3C_DEV_WDT
>  	select S3C_DEV_RTC
>  	select S5P_DEV_FIMD0
> +	select S5P_DEV_FIMC0
> +	select S5P_DEV_FIMC1
> +	select S5P_DEV_FIMC2
> +	select S5P_DEV_FIMC3
> +	select S5P_DEV_CSIS0
>  	select S3C_DEV_HSMMC
>  	select S3C_DEV_HSMMC2
>  	select S3C_DEV_HSMMC3
> @@ -233,6 +239,8 @@ config MACH_NURI
>  	select EXYNOS4_SETUP_I2C5
>  	select EXYNOS4_SETUP_SDHCI
>  	select EXYNOS4_SETUP_USB_PHY
> +	select EXYNOS4_SETUP_FIMC
> +	select S5P_SETUP_MIPIPHY
>  	select SAMSUNG_DEV_PWM
>  	select SAMSUNG_DEV_ADC
>  	help
> diff --git a/arch/arm/mach-exynos4/mach-nuri.c
b/arch/arm/mach-exynos4/mach-
> nuri.c
> index bbd13f4..62c18ab 100644
> --- a/arch/arm/mach-exynos4/mach-nuri.c
> +++ b/arch/arm/mach-exynos4/mach-nuri.c
> @@ -45,9 +45,16 @@
>  #include <plat/iic.h>
>  #include <plat/mfc.h>
>  #include <plat/pd.h>
> +#include <plat/fimc-core.h>
> +#include <plat/camport.h>
> +#include <plat/mipi_csis.h>
> 
>  #include <mach/map.h>
> 
> +#include <media/m5mols.h>
> +#include <media/s5p_fimc.h>
> +#include <media/v4l2-mediabus.h>
> +
>  /* Following are default values for UCON, ULCON and UFCON UART registers
*/
>  #define NURI_UCON_DEFAULT	(S3C2410_UCON_TXILEVEL |	\
>  				 S3C2410_UCON_RXILEVEL |	\
> @@ -65,6 +72,8 @@
>  enum fixed_regulator_id {
>  	FIXED_REG_ID_MMC = 0,
>  	FIXED_REG_ID_MAX8903,
> +	FIXED_REG_ID_CAM_A28V,
> +	FIXED_REG_ID_CAM_12V,
>  };
> 
>  static struct s3c2410_uartcfg nuri_uartcfgs[] __initdata = {
> @@ -1117,10 +1126,146 @@ static void __init nuri_ehci_init(void)
>  	s5p_ehci_set_platdata(pdata);
>  }
> 
> +/* CAMERA */
> +static struct regulator_consumer_supply cam_vdda_supply[] = {
> +	REGULATOR_SUPPLY("a_sensor", "0-001f"),
> +};
> +
> +static struct regulator_init_data cam_vdda_reg_init_data = {
> +	.constraints = { .valid_ops_mask = REGULATOR_CHANGE_STATUS },
> +	.num_consumer_supplies = ARRAY_SIZE(cam_vdda_supply),
> +	.consumer_supplies = cam_vdda_supply,
> +};
> +
> +static struct fixed_voltage_config cam_vdda_fixed_voltage_cfg = {
> +	.supply_name	= "CAM_IO_EN",
> +	.microvolts	= 2800000,
> +	.gpio		= EXYNOS4_GPE2(1), /* CAM_IO_EN */
> +	.enable_high	= 1,
> +	.init_data	= &cam_vdda_reg_init_data,
> +};
> +
> +static struct platform_device cam_vdda_fixed_rdev = {
> +	.name = "reg-fixed-voltage", .id = FIXED_REG_ID_CAM_A28V,
> +	.dev = { .platform_data	= &cam_vdda_fixed_voltage_cfg },
> +};
> +
> +static struct regulator_consumer_supply camera_8m_12v_supply =
> +	REGULATOR_SUPPLY("dig_12", "0-001f");
> +
> +static struct regulator_init_data cam_8m_12v_reg_init_data = {
> +	.num_consumer_supplies	= 1,
> +	.consumer_supplies	= &camera_8m_12v_supply,
> +	.constraints = {
> +		.valid_ops_mask = REGULATOR_CHANGE_STATUS
> +	},
> +};
> +
> +static struct fixed_voltage_config cam_8m_12v_fixed_voltage_cfg = {
> +	.supply_name	= "8M_1.2V",
> +	.microvolts	= 1200000,
> +	.gpio		= EXYNOS4_GPE2(5), /* 8M_1.2V_EN */
> +	.enable_high	= 1,
> +	.init_data	= &cam_8m_12v_reg_init_data,
> +};
> +
> +static struct platform_device cam_8m_12v_fixed_rdev = {
> +	.name = "reg-fixed-voltage", .id = FIXED_REG_ID_CAM_12V,
> +	.dev = { .platform_data = &cam_8m_12v_fixed_voltage_cfg },
> +};
> +
> +static struct s5p_platform_mipi_csis mipi_csis_platdata = {
> +	.clk_rate       = 166000000UL,
> +	.lanes          = 2,
> +	.alignment      = 32,
> +	.hs_settle      = 12,
> +	.phy_enable     = s5p_csis_phy_enable,
> +};
> +
> +#define GPIO_CAM_MEGA_RST	EXYNOS4_GPY3(7) /* ISP_RESET */
> +#define GPIO_CAM_8M_ISP_INT	EXYNOS4_GPL2(5)
> +
> +static struct m5mols_platform_data m5mols_platdata = {
> +	.gpio_reset = GPIO_CAM_MEGA_RST,
> +};
> +
> +static struct i2c_board_info m5mols_board_info = {
> +	I2C_BOARD_INFO("M5MOLS", 0x1F),
> +	.platform_data	= &m5mols_platdata,
> +};
> +
> +static struct s5p_fimc_isp_info nuri_camera_sensors[] = {
> +	{
> +		.flags		= V4L2_MBUS_PCLK_SAMPLE_FALLING |
> +				  V4L2_MBUS_VSYNC_ACTIVE_LOW,
> +		.bus_type       = FIMC_MIPI_CSI2,
> +		.board_info     = &m5mols_board_info,
> +		.clk_frequency  = 24000000UL,
> +		.csi_data_align = 32,
> +	},
> +};
> +
> +static struct s5p_platform_fimc fimc_md_platdata = {
> +	.isp_info	= nuri_camera_sensors,
> +	.num_clients	= ARRAY_SIZE(nuri_camera_sensors),
> +};
> +
> +struct platform_device s5p_device_fimc_md = {
> +	.name	= "s5p-fimc-md",
> +	.id	= -1,
> +};
> +
> +static struct gpio nuri_camera_gpios[] = {
> +	{ GPIO_CAM_8M_ISP_INT,	GPIOF_IN,
> "8M_ISP_INT"  },
> +	{ GPIO_CAM_MEGA_RST,	GPIOF_OUT_INIT_LOW, "CAM_8M_NRST" },
> +};
> +
> +static void nuri_camera_init(void)
> +{
> +	s3c_set_platdata(&mipi_csis_platdata, sizeof(mipi_csis_platdata),
> +			 &s5p_device_mipi_csis0);
> +	s3c_set_platdata(&fimc_md_platdata,  sizeof(fimc_md_platdata),
> +			 &s5p_device_fimc_md);
> +
> +	if (gpio_request_array(nuri_camera_gpios,
> +			       ARRAY_SIZE(nuri_camera_gpios))) {
> +		pr_err("%s: GPIO request failed\n", __func__);
> +		return;
> +	}
> +
> +	m5mols_board_info.irq =
> s5p_register_gpio_interrupt(GPIO_CAM_8M_ISP_INT);
> +	if (!IS_ERR_VALUE(m5mols_board_info.irq))
> +		s3c_gpio_cfgpin(GPIO_CAM_8M_ISP_INT,
> S3C_GPIO_SFN(0xF));
> +	else
> +		pr_err("%s: Failed to configure 8M_ISP_INT GPIO\n",
__func__);
> +
> +	/* Free GPIOs controlled directly by the sensor drivers. */
> +	gpio_free(GPIO_CAM_MEGA_RST);
> +	gpio_free(GPIO_CAM_8M_ISP_INT);
> +
> +	if (exynos4_fimc_setup_gpio(S5P_CAMPORT_A)) {
> +		pr_err("%s: Camera port A setup failed\n", __func__);
> +		return;
> +	}
> +	/* Increase drive strength of the sensor clock output */
> +	s5p_gpio_set_drvstr(EXYNOS4_GPJ1(3), S5P_GPIO_DRVSTR_LV4);
> +}
> +
> +static struct s3c2410_platform_i2c nuri_i2c0_platdata __initdata = {
> +	.frequency	= 400000U,
> +	.sda_delay	= 200,
> +};
> +
>  static struct platform_device *nuri_devices[] __initdata = {
>  	/* Samsung Platform Devices */
>  	&s3c_device_i2c5, /* PMIC should initialize first */
> +	&s3c_device_i2c0,
>  	&emmc_fixed_voltage,
> +	&s5p_device_mipi_csis0,
> +	&s5p_device_fimc0,
> +	&s5p_device_fimc1,
> +	&s5p_device_fimc2,
> +	&s5p_device_fimc3,
>  	&s5p_device_fimd0,
>  	&s3c_device_hsmmc0,
>  	&s3c_device_hsmmc2,
> @@ -1137,6 +1282,8 @@ static struct platform_device *nuri_devices[]
__initdata =
> {
>  	&s5p_device_mfc_r,
>  	&exynos4_device_pd[PD_MFC],
>  	&exynos4_device_pd[PD_LCD0],
> +	&exynos4_device_pd[PD_CAM],
> +	&s5p_device_fimc_md,
> 
>  	/* NURI Devices */
>  	&nuri_gpio_keys,
> @@ -1144,6 +1291,8 @@ static struct platform_device *nuri_devices[]
__initdata =
> {
>  	&nuri_backlight_device,
>  	&max8903_fixed_reg_dev,
>  	&nuri_max8903_device,
> +	&cam_vdda_fixed_rdev,
> +	&cam_8m_12v_fixed_rdev,
>  };
> 
>  static void __init nuri_map_io(void)
> @@ -1164,6 +1313,7 @@ static void __init nuri_machine_init(void)
>  	nuri_tsp_init();
>  	nuri_power_init();
> 
> +	s3c_i2c0_set_platdata(&nuri_i2c0_platdata);
>  	i2c_register_board_info(1, i2c1_devs, ARRAY_SIZE(i2c1_devs));
>  	s3c_i2c3_set_platdata(&i2c3_data);
>  	i2c_register_board_info(3, i2c3_devs, ARRAY_SIZE(i2c3_devs));
> @@ -1175,6 +1325,8 @@ static void __init nuri_machine_init(void)
> 
>  	s5p_fimd0_set_platdata(&nuri_fb_pdata);
> 
> +	nuri_camera_init();
> +
>  	nuri_ehci_init();
>  	clk_xusbxti.rate = 24000000;
> 
> @@ -1182,6 +1334,12 @@ static void __init nuri_machine_init(void)
>  	platform_add_devices(nuri_devices, ARRAY_SIZE(nuri_devices));
>  	s5p_device_mfc.dev.parent = &exynos4_device_pd[PD_MFC].dev;
>  	s5p_device_fimd0.dev.parent = &exynos4_device_pd[PD_LCD0].dev;
> +
> +	s5p_device_fimc0.dev.parent = &exynos4_device_pd[PD_CAM].dev;
> +	s5p_device_fimc1.dev.parent = &exynos4_device_pd[PD_CAM].dev;
> +	s5p_device_fimc2.dev.parent = &exynos4_device_pd[PD_CAM].dev;
> +	s5p_device_fimc3.dev.parent = &exynos4_device_pd[PD_CAM].dev;
> +	s5p_device_mipi_csis0.dev.parent = &exynos4_device_pd[PD_CAM].dev;
>  }
> 
>  MACHINE_START(NURI, "NURI")
> --
> 1.7.6.3

Looks ok but some white spaces are used instead of tab where tab is
better......
If you're ok, I will apply with fixing it.

Thanks.

Best regards,
Kgene.
--
Kukjin Kim <kgene.kim@samsung.com>, Senior Engineer,
SW Solution Development Team, Samsung Electronics Co., Ltd.