On Mon, Nov 02, 2020 at 03:18:48PM +0800, Macpaul Lin wrote: > Option "mediatek,keep-clock-on" means to keep clock on during system > suspend and resume. Some platform will flush register settings if clock has > been disabled when system is suspended. Set this option to avoid clock off. > > Signed-off-by: Macpaul Lin <macpaul.lin@xxxxxxxxxxxx> > --- > .../devicetree/bindings/usb/mediatek,mtk-xhci.yaml | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml > index ea696c8..a956dde 100644 > --- a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml > +++ b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml > @@ -104,6 +104,12 @@ properties: > description: enable USB remote wakeup, see power/wakeup-source.txt > type: boolean > > + mediatek,keep-clock-on: > + description: | > + Keep clock on during system suspend and resume. Some platform will flush > + register settings if clock has been disabled when system is suspended. > + type: boolean > + This should be implied by the compatible string. > mediatek,syscon-wakeup: > $ref: /schemas/types.yaml#/definitions/phandle-array > maxItems: 1 > @@ -175,6 +181,7 @@ examples: > imod-interval-ns = <10000>; > mediatek,syscon-wakeup = <&pericfg 0x400 1>; > wakeup-source; > + mediatek,keep-clock-on; > usb3-lpm-capable; > }; > ... > -- > 1.7.9.5
