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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: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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1 changed files with 21 additions and 1 deletions
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@ -295,6 +295,18 @@ static struct fb_videomode mackerel_lcdc_modes[] = {
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},
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},
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};
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};
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static int mackerel_set_brightness(void *board_data, int brightness)
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{
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gpio_set_value(GPIO_PORT31, brightness);
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return 0;
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}
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static int mackerel_get_brightness(void *board_data)
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{
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return gpio_get_value(GPIO_PORT31);
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}
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static struct sh_mobile_lcdc_info lcdc_info = {
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static struct sh_mobile_lcdc_info lcdc_info = {
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.clock_source = LCDC_CLK_BUS,
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.clock_source = LCDC_CLK_BUS,
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.ch[0] = {
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.ch[0] = {
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@ -307,6 +319,14 @@ static struct sh_mobile_lcdc_info lcdc_info = {
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.flags = 0,
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.flags = 0,
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.lcd_size_cfg.width = 152,
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.lcd_size_cfg.width = 152,
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.lcd_size_cfg.height = 91,
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.lcd_size_cfg.height = 91,
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.board_cfg = {
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.set_brightness = mackerel_set_brightness,
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.get_brightness = mackerel_get_brightness,
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},
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.bl_info = {
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.name = "sh_mobile_lcdc_bl",
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.max_brightness = 1,
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},
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}
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}
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};
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};
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@ -1059,7 +1079,7 @@ static void __init mackerel_init(void)
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gpio_request(GPIO_FN_LCDDCK, NULL);
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gpio_request(GPIO_FN_LCDDCK, NULL);
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gpio_request(GPIO_PORT31, NULL); /* backlight */
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gpio_request(GPIO_PORT31, NULL); /* backlight */
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gpio_direction_output(GPIO_PORT31, 1);
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gpio_direction_output(GPIO_PORT31, 0); /* off by default */
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gpio_request(GPIO_PORT151, NULL); /* LCDDON */
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gpio_request(GPIO_PORT151, NULL); /* LCDDON */
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gpio_direction_output(GPIO_PORT151, 1);
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gpio_direction_output(GPIO_PORT151, 1);
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