mmc: sdhci-imx-esdhc: adopt pinctrl support

Cc: linux-mmc@vger.kernel.org
Cc: Chris Ball <cjb@laptop.org>
Signed-off-by: NDong Aisheng <dong.aisheng@linaro.org>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Acked-by: NStephen Warren <swarren@wwwdotorg.org>

drivers/mmc/host/sdhci-esdhc-imx.c

@@ -24,6 +24,7 @@
 #include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/of_gpio.h>
+#include <linux/pinctrl/consumer.h>
 #include <mach/esdhc.h>
 #include "sdhci-pltfm.h"
 #include "sdhci-esdhc.h"
@@ -68,6 +69,7 @@ struct pltfm_imx_data {
 	int flags;
 	u32 scratchpad;
 	enum imx_esdhc_type devtype;
+	struct pinctrl *pinctrl;
 	struct esdhc_platform_data boarddata;
 };
 
@@ -467,6 +469,12 @@ static int __devinit sdhci_esdhc_imx_probe(struct platform_device *pdev)
 	clk_prepare_enable(clk);
 	pltfm_host->clk = clk;
 
+	imx_data->pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
+	if (IS_ERR(imx_data->pinctrl)) {
+		err = PTR_ERR(imx_data->pinctrl);
+		goto pin_err;
+	}
+
 	host->quirks |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL;
 
 	if (is_imx25_esdhc(imx_data) || is_imx35_esdhc(imx_data))
@@ -558,6 +566,7 @@ static int __devinit sdhci_esdhc_imx_probe(struct platform_device *pdev)
 		gpio_free(boarddata->wp_gpio);
 no_card_detect_pin:
 no_board_data:
+pin_err:
 	clk_disable_unprepare(pltfm_host->clk);
 	clk_put(pltfm_host->clk);
 err_clk_get: