korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-19 02:04:19 +08:00
Code Issues Packages Projects Releases Wiki Activity

ARM: pxa: PalmZ72: Add OV9640 camera support

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

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
This commit is contained in:
Marek Vasut 2011-01-13 11:45:30 +01:00 committed by Eric Miao
parent 9ed3fbf1cb
commit 54a93b69a4
2 changed files with 132 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
arch/arm/mach-pxa/include/mach/palmz72.h
View File

@ -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 */

127
arch/arm/mach-pxa/palmz72.c
View File

@ -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")