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Commit 58f735fe authored by Roger Quadros's avatar Roger Quadros Committed by Felipe Balbi
Browse files

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: default avatarRoger Quadros <rogerq@ti.com>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 2319fb88

drivers/usb/otg/nop-usb-xceiv.c

+18 −0
Original line number Diff line number Diff line
@@ -33,11 +33,13 @@ 
#include <linux/usb/nop-usb-xceiv.h>

#include <linux/slab.h>

#include <linux/clk.h>

#include <linux/regulator/consumer.h>



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";