From 58f735fe4778d34d9d1e37bcdd59325d66a8793e Mon Sep 17 00:00:00 2001 From: Roger Quadros Date: Tue, 12 Mar 2013 13:24:22 +0200 Subject: [PATCH] usb: phy: nop: Handle power supply regulator for the PHY We use "vcc" as the supply name for the PHY's power supply. The power supply will be enabled during .init() and disabled during .shutdown() Signed-off-by: Roger Quadros Signed-off-by: Felipe Balbi --- drivers/usb/otg/nop-usb-xceiv.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/usb/otg/nop-usb-xceiv.c b/drivers/usb/otg/nop-usb-xceiv.c index 17c174f18da7..fbdcfef7169b 100644 --- a/drivers/usb/otg/nop-usb-xceiv.c +++ b/drivers/usb/otg/nop-usb-xceiv.c @@ -33,11 +33,13 @@ #include #include #include +#include struct nop_usb_xceiv { struct usb_phy phy; struct device *dev; struct clk *clk; + struct regulator *vcc; }; static struct platform_device *pd; @@ -70,6 +72,11 @@ static int nop_init(struct usb_phy *phy) { struct nop_usb_xceiv *nop = dev_get_drvdata(phy->dev); + if (!IS_ERR(nop->vcc)) { + if (regulator_enable(nop->vcc)) + dev_err(phy->dev, "Failed to enable power\n"); + } + if (!IS_ERR(nop->clk)) clk_enable(nop->clk); @@ -82,6 +89,11 @@ static void nop_shutdown(struct usb_phy *phy) if (!IS_ERR(nop->clk)) clk_disable(nop->clk); + + if (!IS_ERR(nop->vcc)) { + if (regulator_disable(nop->vcc)) + dev_err(phy->dev, "Failed to disable power\n"); + } } static int nop_set_peripheral(struct usb_otg *otg, struct usb_gadget *gadget) @@ -154,6 +166,12 @@ static int nop_usb_xceiv_probe(struct platform_device *pdev) } } + nop->vcc = devm_regulator_get(&pdev->dev, "vcc"); + if (IS_ERR(nop->vcc)) { + dev_dbg(&pdev->dev, "Error getting vcc regulator: %ld\n", + PTR_ERR(nop->vcc)); + } + nop->dev = &pdev->dev; nop->phy.dev = nop->dev; nop->phy.label = "nop-xceiv"; -- 2.20.1