[PATCH 3/3] PalmZ72: Add support for OV9640 camera sensor
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STALE5975d
From: Marek Vasut <hidden>
Date: 2009-08-22 06:52:06
Subsystem:
arm port, pxa2xx/pxa3xx support, the rest · Maintainers:
Russell King, Daniel Mack, Haojian Zhuang, Robert Jarzmik, Linus Torvalds
From 777212ce6d3bacea76281aa3d74839a3c38b32a4 Mon Sep 17 00:00:00 2001
From: Marek Vasut <redacted> Date: Sat, 22 Aug 2009 05:15:10 +0200 Subject: [PATCH 3/3] PalmZ72: Add support for OV9640 camera sensor Signed-off-by: Marek Vasut <redacted> --- arch/arm/mach-pxa/include/mach/palmz72.h | 5 + arch/arm/mach-pxa/palmz72.c | 126 +++++++++++++++++++++++++++++- 2 files changed, 130 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-pxa/include/mach/palmz72.h b/arch/arm/mach-pxa/include/mach/palmz72.h index 2806ef6..745fa3c 100644
--- a/arch/arm/mach-pxa/include/mach/palmz72.h
+++ b/arch/arm/mach-pxa/include/mach/palmz72.h@@ -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 */
diff --git a/arch/arm/mach-pxa/palmz72.c b/arch/arm/mach-pxa/palmz72.c
index c3645aa..e4449ad 100644
--- a/arch/arm/mach-pxa/palmz72.c
+++ b/arch/arm/mach-pxa/palmz72.c@@ -30,6 +30,7 @@ #include <linux/wm97xx_batt.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>
@@ -44,8 +45,10 @@ #include <mach/pxa27x_keypad.h> #include <mach/udc.h> #include <mach/palmasoc.h> - #include <mach/pm.h> +#include <mach/camera.h> + +#include <media/soc_camera.h> #include "generic.h" #include "devices.h"
@@ -120,6 +123,28 @@ 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, + GPIO57_GPIO, + GPIO91_GPIO, + + /* I2C */ + GPIO117_GPIO, /* I2C_SCL */ + GPIO118_GPIO, /* I2C_SDA */ + /* Misc. */ GPIO0_GPIO | WAKEUP_ON_LEVEL_HIGH, /* power detect */ GPIO88_GPIO, /* green led */
@@ -493,6 +518,70 @@ static struct pxafb_mach_info palmz72_lcd_screen = { .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL, }; +/****************************************************************************** + * SoC Camera +
******************************************************************************/
+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 __initdata 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,
+ .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,
+ }
+};
+
+struct platform_device palmz72_camera = {
+ .name = "soc-camera-pdrv",
+ .id = -1,
+ .dev = {
+ .platform_data = &palmz72_iclink,
+ },
+};
+
+
#ifdef CONFIG_PM
/* We have some black magic here@@ -576,6 +665,8 @@ static struct platform_device *devices[] __initdata = { &palmz72_asoc, &power_supply, &palmz72_gpio_vbus, + &palmz72_i2c_bus_device, + &palmz72_camera, }; /* setup udc GPIOs initial state */
@@ -587,10 +678,41 @@ static void __init palmz72_udc_init(void) } } +/* 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 up later to bring the module up fast. */ +static inline void __init palmz72_cam_init(void) +{ + if (gpio_request(GPIO_NR_PALMZ72_CAM_PWDN, "Camera PWDN")) + goto err1; + if (gpio_request(GPIO_NR_PALMZ72_CAM_RESET, "Camera RESET")) + goto err2; + if (gpio_request(GPIO_NR_PALMZ72_CAM_POWER, "Camera DVDD")) + goto err3; + if (gpio_direction_output(GPIO_NR_PALMZ72_CAM_POWER, 1)) + goto err4; + if (gpio_direction_output(GPIO_NR_PALMZ72_CAM_RESET, 0)) + goto err4; + if (gpio_direction_output(GPIO_NR_PALMZ72_CAM_PWDN, 0)) + goto err4; + return; + +err4: + gpio_free(GPIO_NR_PALMZ72_CAM_POWER); +err3: + gpio_free(GPIO_NR_PALMZ72_CAM_RESET); +err2: + gpio_free(GPIO_NR_PALMZ72_CAM_PWDN); +err1: + printk(KERN_ERR "Camera GPIO init failed!\n"); + return; +} + static void __init palmz72_init(void) { pxa2xx_mfp_config(ARRAY_AND_SIZE(palmz72_pin_config)); + palmz72_cam_init(); set_pxa_fb_info(&palmz72_lcd_screen); pxa_set_mci_info(&palmz72_mci_platform_data); palmz72_udc_init();
@@ -599,6 +721,8 @@ static void __init palmz72_init(void) pxa_set_keypad_info(&palmz72_keypad_platform_data); wm97xx_bat_set_pdata(&wm97xx_batt_pdata); + pxa_set_camera_info(&palmz72_pxacamera_platform_data); + platform_add_devices(devices, ARRAY_SIZE(devices)); }
--
1.6.3.3