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Commit 54a93b69 authored by Marek Vasut's avatar Marek Vasut Committed by Eric Miao
Browse files

ARM: pxa: PalmZ72: Add OV9640 camera support 



Rework of patch from 2009:
PalmZ72: Add support for OV9640 camera sensor

Signed-off-by: default avatarMarek Vasut <marek.vasut@gmail.com>
parent 9ed3fbf1

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")