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Commit 1fbdfcde authored by Magnus Damm's avatar Magnus Damm Committed by Paul Mundt
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ARM: mach-shmobile: Dynamic backlight control for Mackerel 



Use GPIO_PORT31 to control the backlight on the Mackerel board.

Signed-off-by: default avatarMagnus Damm <damm@opensource.se>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent 6447f55d

arch/arm/mach-shmobile/board-mackerel.c

+21 −1
Original line number Diff line number Diff line
@@ -295,6 +295,18 @@ static struct fb_videomode mackerel_lcdc_modes[] = { 
	},

};



static int mackerel_set_brightness(void *board_data, int brightness)

{

	gpio_set_value(GPIO_PORT31, brightness);



	return 0;

}



static int mackerel_get_brightness(void *board_data)

{

	return gpio_get_value(GPIO_PORT31);

}



static struct sh_mobile_lcdc_info lcdc_info = {

	.clock_source = LCDC_CLK_BUS,

	.ch[0] = {
@@ -307,6 +319,14 @@ static struct sh_mobile_lcdc_info lcdc_info = { 
		.flags			= 0,

		.lcd_size_cfg.width	= 152,

		.lcd_size_cfg.height	= 91,

		.board_cfg = {

			.set_brightness = mackerel_set_brightness,

			.get_brightness = mackerel_get_brightness,

		},

		.bl_info = {

			.name = "sh_mobile_lcdc_bl",

			.max_brightness = 1,

		},

	}

};
@@ -1059,7 +1079,7 @@ static void __init mackerel_init(void) 
	gpio_request(GPIO_FN_LCDDCK,   NULL);



	gpio_request(GPIO_PORT31, NULL); /* backlight */

	gpio_direction_output(GPIO_PORT31, 1);

	gpio_direction_output(GPIO_PORT31, 0); /* off by default */



	gpio_request(GPIO_PORT151, NULL); /* LCDDON */

	gpio_direction_output(GPIO_PORT151, 1);