redonkable/alistair23-linux
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usb: phy: nop: Handle power supply regulator for the PHY

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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 <rogerq@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Roger Quadros 2013-03-12 13:24:22 +02:00 committed by Felipe Balbi
parent 2319fb88e1
commit 58f735fe47
1 changed files with 18 additions and 0 deletions
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18
drivers/usb/otg/nop-usb-xceiv.c
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@ -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";