1 files changed, 49 insertions, 2 deletions

diff --git a/drivers/usb/dwc3/dwc3-exynos.c b/drivers/usb/dwc3/dwc3-exynos.c
index ed22d722884..0ed85834bfe 100644
--- a/drivers/usb/dwc3/dwc3-exynos.c
+++ b/drivers/usb/dwc3/dwc3-exynos.c
@@ -27,6 +27,7 @@
 #include <linux/usb/usb_phy_generic.h>
 #include <linux/of.h>
 #include <linux/of_platform.h>
+#include <linux/regulator/consumer.h>
 
 struct dwc3_exynos {
 	struct platform_device	*usb2_phy;
@@ -34,6 +35,8 @@ struct dwc3_exynos {
 	struct device		*dev;
 
 	struct clk		*clk;
+	struct regulator	*vdd33;
+	struct regulator	*vdd10;
 };
 
 static int dwc3_exynos_register_phys(struct dwc3_exynos *exynos)
@@ -144,20 +147,46 @@ static int dwc3_exynos_probe(struct platform_device *pdev)
 
 	clk_prepare_enable(exynos->clk);
 
+	exynos->vdd33 = devm_regulator_get(dev, "vdd33");
+	if (IS_ERR(exynos->vdd33)) {
+		ret = PTR_ERR(exynos->vdd33);
+		goto err2;
+	}
+	ret = regulator_enable(exynos->vdd33);
+	if (ret) {
+		dev_err(dev, "Failed to enable VDD33 supply\n");
+		goto err2;
+	}
+
+	exynos->vdd10 = devm_regulator_get(dev, "vdd10");
+	if (IS_ERR(exynos->vdd10)) {
+		ret = PTR_ERR(exynos->vdd10);
+		goto err3;
+	}
+	ret = regulator_enable(exynos->vdd10);
+	if (ret) {
+		dev_err(dev, "Failed to enable VDD10 supply\n");
+		goto err3;
+	}
+
 	if (node) {
 		ret = of_platform_populate(node, NULL, NULL, dev);
 		if (ret) {
 			dev_err(dev, "failed to add dwc3 core\n");
-			goto err2;
+			goto err4;
 		}
 	} else {
 		dev_err(dev, "no device node, failed to add dwc3 core\n");
 		ret = -ENODEV;
-		goto err2;
+		goto err4;
 	}
 
 	return 0;
 
+err4:
+	regulator_disable(exynos->vdd10);
+err3:
+	regulator_disable(exynos->vdd33);
 err2:
 	clk_disable_unprepare(clk);
 err1:
@@ -174,6 +203,9 @@ static int dwc3_exynos_remove(struct platform_device *pdev)
 
 	clk_disable_unprepare(exynos->clk);
 
+	regulator_disable(exynos->vdd33);
+	regulator_disable(exynos->vdd10);
+
 	return 0;
 }
 
@@ -192,12 +224,27 @@ static int dwc3_exynos_suspend(struct device *dev)
 
 	clk_disable(exynos->clk);
 
+	regulator_disable(exynos->vdd33);
+	regulator_disable(exynos->vdd10);
+
 	return 0;
 }
 
 static int dwc3_exynos_resume(struct device *dev)
 {
 	struct dwc3_exynos *exynos = dev_get_drvdata(dev);
+	int ret;
+
+	ret = regulator_enable(exynos->vdd33);
+	if (ret) {
+		dev_err(dev, "Failed to enable VDD33 supply\n");
+		return ret;
+	}
+	ret = regulator_enable(exynos->vdd10);
+	if (ret) {
+		dev_err(dev, "Failed to enable VDD10 supply\n");
+		return ret;
+	}
 
 	clk_enable(exynos->clk);