Hi,
Peter Chen <peter.chen@xxxxxxx> writes:
> 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);
> + }
> +
Bin, Roger, can you make sure this causes no regressions for AM335x
devices?
--
balbi
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