summaryrefslogtreecommitdiff
path: root/board/samsung/smdk5420/smdk5420.c
diff options
context:
space:
mode:
authorSimon Glass <sjg@chromium.org>2014-10-20 19:48:39 -0600
committerSimon Glass <sjg@chromium.org>2014-10-22 10:36:33 -0600
commit7f1961018cb494c029fcbb446e6562064735ec5e (patch)
tree10089a45751339df4ed17fd12ed1838ed60c0ca5 /board/samsung/smdk5420/smdk5420.c
parent3a233dbfe9308943122cc2473064bb7e876577f0 (diff)
downloadu-boot-imx-7f1961018cb494c029fcbb446e6562064735ec5e.zip
u-boot-imx-7f1961018cb494c029fcbb446e6562064735ec5e.tar.gz
u-boot-imx-7f1961018cb494c029fcbb446e6562064735ec5e.tar.bz2
dm: exynos: Make sure that GPIOs are requested
With driver model GPIOs must be requested before use. Make sure this is done correctly. (Note that the soft SPI part of universal is omitted, since this driver is about to be replaced with a driver-model-aware version) Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'board/samsung/smdk5420/smdk5420.c')
-rw-r--r--board/samsung/smdk5420/smdk5420.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/board/samsung/smdk5420/smdk5420.c b/board/samsung/smdk5420/smdk5420.c
index 47998ab..a691222 100644
--- a/board/samsung/smdk5420/smdk5420.c
+++ b/board/samsung/smdk5420/smdk5420.c
@@ -74,9 +74,12 @@ void exynos_lcd_power_on(void)
mdelay(5);
/* TODO(ajaykumar.rs@samsung.com): Use device tree */
+ gpio_request(EXYNOS5420_GPIO_X35, "edp_slp#");
gpio_direction_output(EXYNOS5420_GPIO_X35, 1); /* EDP_SLP# */
mdelay(10);
+ gpio_request(EXYNOS5420_GPIO_Y77, "edp_rst#");
gpio_direction_output(EXYNOS5420_GPIO_Y77, 1); /* EDP_RST# */
+ gpio_request(EXYNOS5420_GPIO_X26, "edp_hpd");
gpio_direction_input(EXYNOS5420_GPIO_X26); /* EDP_HPD */
gpio_set_pull(EXYNOS5420_GPIO_X26, S5P_GPIO_PULL_NONE);
@@ -88,6 +91,7 @@ void exynos_lcd_power_on(void)
void exynos_backlight_on(unsigned int onoff)
{
/* For PWM */
+ gpio_request(EXYNOS5420_GPIO_B20, "backlight_on");
gpio_cfg_pin(EXYNOS5420_GPIO_B20, S5P_GPIO_FUNC(0x1));
gpio_set_value(EXYNOS5420_GPIO_B20, 1);