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usb: phy: phy-generic: add the implementation of .set_suspend

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Add clock operation at .set_suspend if the PHY has
suspend requirement, it can be benefit of power saving for
phy and the whole system (parent clock may also be disabled).

Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Peter Chen 2016-10-31 10:18:20 +08:00 committed by Felipe Balbi
parent a22f884b26
commit a0fe0415e0
1 changed files with 9 additions and 0 deletions
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9
drivers/usb/phy/phy-generic.c
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@ -59,6 +59,15 @@ 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);
if (!IS_ERR(nop->clk)) {
if (suspend)
clk_disable_unprepare(nop->clk);
else
clk_prepare_enable(nop->clk);
}
return 0;
}