diff options
| -rw-r--r-- | drivers/usb/dwc3/dwc3-exynos.c | 51 |
1 files changed, 49 insertions, 2 deletions
diff --git a/drivers/usb/dwc3/dwc3-exynos.c b/drivers/usb/dwc3/dwc3-exynos.c index ed22d722884e..0ed85834bfec 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); |