| Message ID | 1604655965-22418-1-git-send-email-macpaul.lin@mediatek.com |
|---|---|
| State | New |
| Headers | show |
| Series | [v2,1/2] dt-bindings: usb: mediatek,mtk-xhci: add str-clock-on | expand |
diff --git a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt index 42d8814..fc93bcf 100644 --- a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt +++ b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt @@ -37,6 +37,9 @@ Required properties: Optional properties: - wakeup-source : enable USB remote wakeup; + - mediatek,str-clock-on: Keep clock on during system suspend and resume. + Some platform will flush register settings if clock has been disabled + when system is suspended. - mediatek,syscon-wakeup : phandle to syscon used to access the register of the USB wakeup glue layer between xHCI and SPM; it depends on "wakeup-source", and has two arguments:
Option "mediatek,str-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. Change-Id: Id841f58e9d7fb3656511072b3eb14d0d355e2dd5 Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com> --- Changes for v2: - Rename "mediatek,keep-clock-on" to "mediatek,str-clock-on" which implies this option related to STR functions. - After discussion with Chunfeng, resend dt-bindings descritption based on mediatek,mtk-xhci.txt instead of yaml format. .../devicetree/bindings/usb/mediatek,mtk-xhci.txt | 3 +++ 1 file changed, 3 insertions(+)