ARM: pxa: PalmZ72: Add OV9640 camera support (54a93b69) · Commits · 戴 / test

arch/arm/mach-pxa/include/mach/palmz72.h

+5 −0

Original line number	Diff line number	Diff line
		@@ -44,6 +44,11 @@
		#define GPIO_NR_PALMZ72_BT_POWER 17
		#define GPIO_NR_PALMZ72_BT_RESET 83

		/* Camera */
		#define GPIO_NR_PALMZ72_CAM_PWDN 56
		#define GPIO_NR_PALMZ72_CAM_RESET 57
		#define GPIO_NR_PALMZ72_CAM_POWER 91

		/ Initial values /

		/* Battery */

arch/arm/mach-pxa/palmz72.c

+127 −0

Original line number	Diff line number	Diff line
		@@ -30,6 +30,7 @@
		#include <linux/wm97xx.h>
		#include <linux/power_supply.h>
		#include <linux/usb/gpio_vbus.h>
		#include <linux/i2c-gpio.h>

		#include <asm/mach-types.h>
		#include <asm/mach/arch.h>
		@@ -47,6 +48,9 @@
		#include <mach/palm27x.h>

		#include <mach/pm.h>
		#include <mach/camera.h>

		#include <media/soc_camera.h>

		#include "generic.h"
		#include "devices.h"
		@@ -103,6 +107,28 @@ static unsigned long palmz72_pin_config[] __initdata = {
		GPIO22_GPIO, /* LCD border color */
		GPIO96_GPIO, /* lcd power */

		/* PXA Camera */
		GPIO81_CIF_DD_0,
		GPIO48_CIF_DD_5,
		GPIO50_CIF_DD_3,
		GPIO51_CIF_DD_2,
		GPIO52_CIF_DD_4,
		GPIO53_CIF_MCLK,
		GPIO54_CIF_PCLK,
		GPIO55_CIF_DD_1,
		GPIO84_CIF_FV,
		GPIO85_CIF_LV,
		GPIO93_CIF_DD_6,
		GPIO108_CIF_DD_7,

		GPIO56_GPIO, /* OV9640 Powerdown */
		GPIO57_GPIO, /* OV9640 Reset */
		GPIO91_GPIO, /* OV9640 Power */

		/* I2C */
		GPIO117_GPIO, /* I2C_SCL */
		GPIO118_GPIO, /* I2C_SDA */

		/* Misc. */
		GPIO0_GPIO \| WAKEUP_ON_LEVEL_HIGH, /* power detect */
		GPIO88_GPIO, /* green led */
		@@ -253,6 +279,106 @@ static int __init palmz72_pm_init(void)
		device_initcall(palmz72_pm_init);
		#endif

		/******************************************************************************
		* SoC Camera
		******************************************************************************/
		#if defined(CONFIG_SOC_CAMERA_OV9640) \|\| \
		defined(CONFIG_SOC_CAMERA_OV9640_MODULE)
		static struct pxacamera_platform_data palmz72_pxacamera_platform_data = {
		.flags = PXA_CAMERA_MASTER \| PXA_CAMERA_DATAWIDTH_8 \|
		PXA_CAMERA_PCLK_EN \| PXA_CAMERA_MCLK_EN,
		.mclk_10khz = 2600,
		};

		/* Board I2C devices. */
		static struct i2c_board_info palmz72_i2c_device[] = {
		{
		I2C_BOARD_INFO("ov9640", 0x30),
		}
		};

		static int palmz72_camera_power(struct device *dev, int power)
		{
		gpio_set_value(GPIO_NR_PALMZ72_CAM_PWDN, !power);
		mdelay(50);
		return 0;
		}

		static int palmz72_camera_reset(struct device *dev)
		{
		gpio_set_value(GPIO_NR_PALMZ72_CAM_RESET, 1);
		mdelay(50);
		gpio_set_value(GPIO_NR_PALMZ72_CAM_RESET, 0);
		mdelay(50);
		return 0;
		}

		static struct soc_camera_link palmz72_iclink = {
		.bus_id = 0, /* Match id in pxa27x_device_camera in device.c */
		.board_info = &palmz72_i2c_device[0],
		.i2c_adapter_id = 0,
		.module_name = "ov96xx",
		.power = &palmz72_camera_power,
		.reset = &palmz72_camera_reset,
		.flags = SOCAM_DATAWIDTH_8,
		};

		static struct i2c_gpio_platform_data palmz72_i2c_bus_data = {
		.sda_pin = 118,
		.scl_pin = 117,
		.udelay = 10,
		.timeout = 100,
		};

		static struct platform_device palmz72_i2c_bus_device = {
		.name = "i2c-gpio",
		.id = 0, /* we use this as a replacement for i2c-pxa */
		.dev = {
		.platform_data = &palmz72_i2c_bus_data,
		}
		};

		static struct platform_device palmz72_camera = {
		.name = "soc-camera-pdrv",
		.id = -1,
		.dev = {
		.platform_data = &palmz72_iclink,
		},
		};

		/* Here we request the camera GPIOs and configure them. We power up the camera
		* module, deassert the reset pin, but put it into powerdown (low to no power
		* consumption) mode. This allows us to later bring the module up fast. */
		static struct gpio palmz72_camera_gpios[] = {
		{ GPIO_NR_PALMZ72_CAM_POWER, GPIOF_INIT_HIGH,"Camera DVDD" },
		{ GPIO_NR_PALMZ72_CAM_RESET, GPIOF_INIT_LOW, "Camera RESET" },
		{ GPIO_NR_PALMZ72_CAM_PWDN, GPIOF_INIT_LOW, "Camera PWDN" },
		};

		static inline void __init palmz72_cam_gpio_init(void)
		{
		int ret;

		ret = gpio_request_array(ARRAY_AND_SIZE(palmz72_camera_gpios));
		if (!ret)
		gpio_free_array(ARRAY_AND_SIZE(palmz72_camera_gpios));
		else
		printk(KERN_ERR "Camera GPIO init failed!\n");

		return;
		}

		static void __init palmz72_camera_init(void)
		{
		palmz72_cam_gpio_init();
		pxa_set_camera_info(&palmz72_pxacamera_platform_data);
		platform_device_register(&palmz72_i2c_bus_device);
		platform_device_register(&palmz72_camera);
		}
		#else
		static inline void palmz72_camera_init(void) {}
		#endif

		/******************************************************************************
		* Machine init
		******************************************************************************/
		@@ -276,6 +402,7 @@ static void __init palmz72_init(void)
		palm27x_pmic_init();
		palmz72_kpc_init();
		palmz72_leds_init();
		palmz72_camera_init();
		}

		MACHINE_START(PALMZ72, "Palm Zire72")

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