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[ARM] pxa: make zylonite use the generic PWM backlight driver 

Patch mostly by Eric Miao, minor edits by rmk.

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
eric miao 2008-04-13 21:46:34 +01:00 committed by Russell King
parent 42796d37da
commit 5cca91479b
5 changed files with 21 additions and 14 deletions
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2
arch/arm/mach-pxa/Kconfig
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@ -116,6 +116,7 @@ config MACH_COLIBRI
config MACH_ZYLONITE
bool "PXA3xx Development Platform"
select PXA3xx
select HAVE_PWM
config MACH_LITTLETON
bool "PXA3xx Form Factor Platform (aka Littleton)"
@ -276,6 +277,7 @@ config PXA_SSP
config PXA_PWM
tristate
default BACKLIGHT_PWM
help
Enable support for PXA2xx/PXA3xx PWM controllers
endif

26
arch/arm/mach-pxa/zylonite.c
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@ -18,6 +18,7 @@
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/pwm_backlight.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@ -28,12 +29,12 @@
#include <asm/arch/mmc.h>
#include <asm/arch/pxa27x_keypad.h>
#include "devices.h"
#include "generic.h"
#define MAX_SLOTS 3
struct platform_mmc_slot zylonite_mmc_slot[MAX_SLOTS];
int gpio_backlight;
int gpio_eth_irq;
int wm9713_irq;
@ -62,10 +63,20 @@ static struct platform_device smc91x_device = {
};
#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
static void zylonite_backlight_power(int on)
{
gpio_set_value(gpio_backlight, on);
}
static struct platform_pwm_backlight_data zylonite_backlight_data = {
.pwm_id = 3,
.max_brightness = 100,
.dft_brightness = 100,
.pwm_period_ns = 10000,
};
static struct platform_device zylonite_backlight_device = {
.name = "pwm-backlight",
.dev = {
.parent = &pxa27x_device_pwm1.dev,
.platform_data = &zylonite_backlight_data,
},
};
static struct pxafb_mode_info toshiba_ltm035a776c_mode = {
.pixclock = 110000,
@ -98,7 +109,6 @@ static struct pxafb_mode_info toshiba_ltm04c380k_mode = {
static struct pxafb_mach_info zylonite_toshiba_lcd_info = {
.num_modes = 1,
.lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
.pxafb_backlight_power = zylonite_backlight_power,
};
static struct pxafb_mode_info sharp_ls037_modes[] = {
@ -134,13 +144,11 @@ static struct pxafb_mach_info zylonite_sharp_lcd_info = {
.modes = sharp_ls037_modes,
.num_modes = 2,
.lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
.pxafb_backlight_power = zylonite_backlight_power,
};
static void __init zylonite_init_lcd(void)
{
/* backlight GPIO: output, default on */
gpio_direction_output(gpio_backlight, 1);
platform_device_register(&zylonite_backlight_device);
if (lcd_id & 0x20) {
set_pxa_fb_info(&zylonite_sharp_lcd_info);

4
arch/arm/mach-pxa/zylonite_pxa300.c
View File

@ -50,6 +50,7 @@ static mfp_cfg_t common_mfp_cfg[] __initdata = {
GPIO75_LCD_BIAS,
GPIO76_LCD_VSYNC,
GPIO127_LCD_CS_N,
GPIO20_PWM3_OUT, /* backlight */
/* BTUART */
GPIO111_UART2_RTS,
@ -200,9 +201,6 @@ void __init zylonite_pxa300_init(void)
/* detect LCD panel */
zylonite_detect_lcd_panel();
/* GPIO pin assignment */
gpio_backlight = mfp_to_gpio(MFP_PIN_GPIO20);
/* MMC card detect & write protect for controller 0 */
zylonite_mmc_slot[0].gpio_cd = EXT_GPIO(0);
zylonite_mmc_slot[0].gpio_wp = EXT_GPIO(2);

2
arch/arm/mach-pxa/zylonite_pxa320.c
View File

@ -49,6 +49,7 @@ static mfp_cfg_t mfp_cfg[] __initdata = {
GPIO15_2_LCD_LCLK,
GPIO16_2_LCD_PCLK,
GPIO17_2_LCD_BIAS,
GPIO14_PWM3_OUT, /* backlight */
/* FFUART */
GPIO41_UART1_RXD | MFP_LPM_EDGE_FALL,
@ -187,7 +188,6 @@ void __init zylonite_pxa320_init(void)
zylonite_detect_lcd_panel();
/* GPIO pin assignment */
gpio_backlight = mfp_to_gpio(MFP_PIN_GPIO14);
gpio_eth_irq = mfp_to_gpio(MFP_PIN_GPIO9);
/* MMC card detect & write protect for controller 0 */

1
include/asm-arm/arch-pxa/zylonite.h
View File

@ -15,7 +15,6 @@ struct platform_mmc_slot {
extern struct platform_mmc_slot zylonite_mmc_slot[];
extern int gpio_backlight;
extern int gpio_eth_irq;
extern int wm9713_irq;