Commit 5cca9147 authored by eric miao's avatar eric miao Committed by Russell King
Browse files

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



Patch mostly by Eric Miao, minor edits by rmk.

Signed-off-by: default avatareric miao <eric.miao@marvell.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 42796d37

arch/arm/mach-pxa/Kconfig

+2 −0
Original line number Diff line number Diff line
@@ -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

arch/arm/mach-pxa/zylonite.c

+17 −9
Original line number Diff line number Diff line
@@ -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);

arch/arm/mach-pxa/zylonite_pxa300.c

+1 −3
Original line number Diff line number Diff line
@@ -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);

arch/arm/mach-pxa/zylonite_pxa320.c

+1 −1
Original line number Diff line number Diff line
@@ -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 */

include/asm-arm/arch-pxa/zylonite.h

+0 −1
Original line number Diff line number Diff line
@@ -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;