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usb: phy: generic: add suspend support for regulator

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Disable the vcc regulator on suspend and enable it on resume.

Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://lore.kernel.org/r/20231027122955.22123-1-francesco@dolcini.it
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Stefan Eichenberger 2023-10-27 14:29:55 +02:00 committed by Greg Kroah-Hartman
parent 5389b5d74e
commit 9768af12ed
1 changed files with 10 additions and 4 deletions
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14
drivers/usb/phy/phy-generic.c
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@ -46,15 +46,21 @@ EXPORT_SYMBOL_GPL(usb_phy_generic_unregister);
static int nop_set_suspend(struct usb_phy *x, int suspend)
{
struct usb_phy_generic *nop = dev_get_drvdata(x->dev);
int ret = 0;
if (!IS_ERR(nop->clk)) {
if (suspend)
if (suspend) {
if (!IS_ERR(nop->clk))
clk_disable_unprepare(nop->clk);
else
if (!IS_ERR(nop->vcc) && !device_may_wakeup(x->dev))
ret = regulator_disable(nop->vcc);
} else {
if (!IS_ERR(nop->vcc) && !device_may_wakeup(x->dev))
ret = regulator_enable(nop->vcc);
if (!IS_ERR(nop->clk))
clk_prepare_enable(nop->clk);
}
return 0;
return ret;
}
static void nop_reset(struct usb_phy_generic *nop)