With driver model GPIOs must be requested before use. Make sure this is
done correctly.
Signed-off-by: Simon Glass <sjg at chromium.org>
---
Changes in v4: None
Changes in v3: None
Changes in v2: None
arch/arm/cpu/armv7/exynos/pinmux.c | 3 +++
board/samsung/smdk5250/exynos5-dt.c | 7 +++++++
board/samsung/smdk5420/smdk5420.c | 2 ++
drivers/mmc/s5p_sdhci.c | 7 ++++++-
4 files changed, 18 insertions(+), 1 deletion(-)
diff --git a/arch/arm/cpu/armv7/exynos/pinmux.c b/arch/arm/cpu/armv7/exynos/pinmux.c
index 8cc4e9c..fb1375d 100644
--- a/arch/arm/cpu/armv7/exynos/pinmux.c
+++ b/arch/arm/cpu/armv7/exynos/pinmux.c
@@ -172,6 +172,9 @@ static int exynos5420_mmc_config(int peripheral, int flags)
* this same assumption.
*/
if ((peripheral == PERIPH_ID_SDMMC0) && (i == (start + 2))) {
+#ifndef CONFIG_SPL_BUILD
+ gpio_request(i, "sdmmc0_vdden");
+#endif
gpio_set_value(i, 1);
gpio_cfg_pin(i, S5P_GPIO_OUTPUT);
} else {
diff --git a/board/samsung/smdk5250/exynos5-dt.c b/board/samsung/smdk5250/exynos5-dt.c
index d6ce133..53ff706 100644
--- a/board/samsung/smdk5250/exynos5-dt.c
+++ b/board/samsung/smdk5250/exynos5-dt.c
@@ -29,6 +29,7 @@ DECLARE_GLOBAL_DATA_PTR;
static void board_enable_audio_codec(void)
{
/* Enable MAX98095 Codec */
+ gpio_request(EXYNOS5_GPIO_X17, "max98095_enable");
gpio_direction_output(EXYNOS5_GPIO_X17, 1);
gpio_set_pull(EXYNOS5_GPIO_X17, S5P_GPIO_PULL_NONE);
}
@@ -199,16 +200,19 @@ static int board_dp_bridge_setup(void)
/* Setup the GPIOs */
/* PD is ACTIVE_LOW, and initially de-asserted */
+ gpio_request(EXYNOS5_GPIO_Y25, "dp_bridge_pd");
gpio_set_pull(EXYNOS5_GPIO_Y25, S5P_GPIO_PULL_NONE);
gpio_direction_output(EXYNOS5_GPIO_Y25, 1);
/* Reset is ACTIVE_LOW */
+ gpio_request(EXYNOS5_GPIO_X15, "dp_bridge_reset");
gpio_set_pull(EXYNOS5_GPIO_X15, S5P_GPIO_PULL_NONE);
gpio_direction_output(EXYNOS5_GPIO_X15, 0);
udelay(10);
gpio_set_value(EXYNOS5_GPIO_X15, 1);
+ gpio_request(EXYNOS5_GPIO_X07, "dp_bridge_hpd");
gpio_direction_input(EXYNOS5_GPIO_X07);
/*
@@ -236,10 +240,12 @@ static int board_dp_bridge_setup(void)
void exynos_cfg_lcd_gpio(void)
{
/* For Backlight */
+ gpio_request(EXYNOS5_GPIO_B20, "lcd_backlight");
gpio_cfg_pin(EXYNOS5_GPIO_B20, S5P_GPIO_OUTPUT);
gpio_set_value(EXYNOS5_GPIO_B20, 1);
/* LCD power on */
+ gpio_request(EXYNOS5_GPIO_X15, "lcd_power");
gpio_cfg_pin(EXYNOS5_GPIO_X15, S5P_GPIO_OUTPUT);
gpio_set_value(EXYNOS5_GPIO_X15, 1);
@@ -276,6 +282,7 @@ void exynos_backlight_on(unsigned int on)
mdelay(10);
/* board_dp_backlight_en */
+ gpio_request(EXYNOS5_GPIO_X30, "board_dp_backlight_en");
gpio_direction_output(EXYNOS5_GPIO_X30, 1);
#endif
}
diff --git a/board/samsung/smdk5420/smdk5420.c b/board/samsung/smdk5420/smdk5420.c
index e37c0d3..09683fe 100644
--- a/board/samsung/smdk5420/smdk5420.c
+++ b/board/samsung/smdk5420/smdk5420.c
@@ -43,10 +43,12 @@ int exynos_init(void)
void cfg_lcd_gpio(void)
{
/* For Backlight */
+ gpio_request(EXYNOS5420_GPIO_B20, "backlight_on");
gpio_cfg_pin(EXYNOS5420_GPIO_B20, S5P_GPIO_OUTPUT);
gpio_set_value(EXYNOS5420_GPIO_B20, 1);
/* LCD power on */
+ gpio_request(EXYNOS5420_GPIO_X15, "lcd_power_on");
gpio_cfg_pin(EXYNOS5420_GPIO_X15, S5P_GPIO_OUTPUT);
gpio_set_value(EXYNOS5420_GPIO_X15, 1);
diff --git a/drivers/mmc/s5p_sdhci.c b/drivers/mmc/s5p_sdhci.c
index 2ff0ec2..95aa0ae 100644
--- a/drivers/mmc/s5p_sdhci.c
+++ b/drivers/mmc/s5p_sdhci.c
@@ -104,6 +104,7 @@ struct sdhci_host sdhci_host[SDHCI_MAX_HOSTS];
static int do_sdhci_init(struct sdhci_host *host)
{
+ char str[20];
int dev_id, flag;
int err = 0;
@@ -111,6 +112,8 @@ static int do_sdhci_init(struct sdhci_host *host)
dev_id = host->index + PERIPH_ID_SDMMC0;
if (fdt_gpio_isvalid(&host->pwr_gpio)) {
+ sprintf(str, "sdhci%d_power", host->index % 99);
+ gpio_request(host->pwr_gpio.gpio, str);
gpio_direction_output(host->pwr_gpio.gpio, 1);
err = exynos_pinmux_config(dev_id, flag);
if (err) {
@@ -120,7 +123,9 @@ static int do_sdhci_init(struct sdhci_host *host)
}
if (fdt_gpio_isvalid(&host->cd_gpio)) {
- gpio_direction_output(host->cd_gpio.gpio, 0xf);
+ sprintf(str, "sdhci%d_cd", host->index % 99);
+ gpio_request(host->cd_gpio.gpio, str);
+ gpio_direction_output(host->cd_gpio.gpio, 1);
if (gpio_get_value(host->cd_gpio.gpio))
return -ENODEV;
--
2.0.0.526.g5318336