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@xxxxxxx>
---
drivers/usb/phy/phy-generic.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/usb/phy/phy-generic.c b/drivers/usb/phy/phy-generic.c
index 8311ba2..89d6e7a 100644
--- a/drivers/usb/phy/phy-generic.c
+++ b/drivers/usb/phy/phy-generic.c
@@ -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;
}
--
2.7.4
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