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>
diff --git a/drivers/mmc/s5p_sdhci.c b/drivers/mmc/s5p_sdhci.c
index 637dd97..0dea45d 100644
--- a/drivers/mmc/s5p_sdhci.c
+++ b/drivers/mmc/s5p_sdhci.c
@@ -102,6 +102,7 @@
 
 static int do_sdhci_init(struct sdhci_host *host)
 {
+	char str[20];
 	int dev_id, flag;
 	int err = 0;
 
@@ -109,6 +110,8 @@
 	dev_id = host->index + PERIPH_ID_SDMMC0;
 
 	if (fdt_gpio_isvalid(&host->pwr_gpio)) {
+		sprintf(str, "sdhci%d_power", host->index & 0xf);
+		gpio_request(host->pwr_gpio.gpio, str);
 		gpio_direction_output(host->pwr_gpio.gpio, 1);
 		err = exynos_pinmux_config(dev_id, flag);
 		if (err) {
@@ -118,7 +121,9 @@
 	}
 
 	if (fdt_gpio_isvalid(&host->cd_gpio)) {
-		gpio_direction_output(host->cd_gpio.gpio, 0xf);
+		sprintf(str, "sdhci%d_cd", host->index & 0xf);
+		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;