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vp6500: Add backlight device

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SVN-Revision: 20843
This commit is contained in:
Lars-Peter Clausen
2010-04-13 20:52:41 +00:00
parent 498bf7402a
commit e438c665db
3 changed files with 187 additions and 8 deletions
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40
target/linux/mx2/files/arch/arm/mach-mx2/mach-vp6500.c
View File

@@ -20,9 +20,9 @@
#include <linux/input.h>
#include <linux/input/matrix_keypad.h>
#include <linux/gpio_keys.h>
#include <linux/pwm_backlight.h>
static unsigned int vp6500_pins[] = {
/* UART1 */
PE12_PF_UART1_TXD,
PE13_PF_UART1_RXD,
@@ -52,8 +52,14 @@ static unsigned int vp6500_pins[] = {
PA30_PF_CONTRAST,
PA31_PF_OE_ACD,
#endif
/* LCD Backlight */
PE5_PF_PWMO,
VP6500_GPIO_BACKLIGHT_EN | GPIO_GPIO | GPIO_OUT,
};
/* Flash */
static struct physmap_flash_data vp6500_flash_data = {
.width = 2,
};
@@ -74,6 +80,8 @@ static struct platform_device vp6500_nor_mtd_device = {
.resource = &vp6500_flash_resource,
};
/* LEDs */
static struct gpio_led vp6500_leds[] = {
{
.name = "vp6500:orange:keypad",
@@ -108,6 +116,8 @@ static struct platform_device vp6500_leds_device = {
},
};
/* Keypad */
static const uint32_t vp6500_keypad_keys[] = {
KEY(0, 3, KEY_F2),
KEY(0, 4, KEY_RIGHT),
@@ -180,11 +190,38 @@ static struct platform_device vp6500_key_device = {
},
};
/* LCD backlight */
static int vp6500_backlight_notify(struct device *dev, int brightness)
{
gpio_set_value(VP6500_GPIO_BACKLIGHT_EN, !!brightness);
return brightness;
}
static struct platform_pwm_backlight_data vp6500_backlight_data = {
.max_brightness = 255,
.dft_brightness = 100,
.pwm_period_ns = 15000000,
.notify = vp6500_backlight_notify,
};
static struct platform_device vp6500_backlight_device = {
.name = "pwm-backlight",
.id = -1,
.dev = {
.parent = &mxc_pwm_device.dev,
.platform_data = &vp6500_backlight_data,
},
};
static struct platform_device *platform_devices[] __initdata = {
&vp6500_nor_mtd_device,
&vp6500_leds_device,
&vp6500_keypad_device,
&vp6500_key_device,
&vp6500_backlight_device,
};
static void __init vp6500_board_init(void)
@@ -193,6 +230,7 @@ static void __init vp6500_board_init(void)
"vp6500");
mxc_register_device(&mxc_uart_device0, NULL);
mxc_register_device(&mxc_pwm_device, NULL);
platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
}

18
target/linux/mx2/files/arch/arm/plat-mxc/include/mach/board-vp6500.h
View File

@@ -2,12 +2,16 @@
#ifndef __BOARD_VP6500__
#define __BOARD_VP6500__
#define VP6500_GPIO_POWER_KEY 39
#define VP6500_GPIO_CAMERA_DIRECTION 45
#define VP6500_GPIO_LED_KEYPAD 82
#define VP6500_GPIO_AMP_ENABLE 89
#define VP6500_GPIO_LED_RED 91
#define VP6500_GPIO_LED_GREEN 92
#define VP6500_GPIO_LED_CAMERA 93
#define VP6500_GPIO_POWER_KEY GPIO_PORTB | 5
#define VP6500_GPIO_CAMERA_DIRECTION GPIO_PORTB | 13
#define VP6500_GPIO_LED_KEYPAD GPIO_PORTC | 18
#define VP6500_GPIO_AMP_ENABLE GPIO_PORTC | 25
#define VP6500_GPIO_LED_RED GPIO_PORTC | 27
#define VP6500_GPIO_LED_GREEN GPIO_PORTC | 28
#define VP6500_GPIO_LED_CAMERA GPIO_PORTC | 29
#define VP6500_GPIO_BACKLIGHT_EN GPIO_PORTE | 10
#define VP6500_GPIO_TLV_RESET GPIO_PORTB | 27
#define VP6500_GPIO_TLV_ENABLE GPIO_PORTC | 25
#endif