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authorDouglas Anderson <dianders@chromium.org>2019-05-20 10:56:03 -0700
committerFelipe Balbi <felipe.balbi@linux.intel.com>2019-06-18 11:58:28 +0300
commitcd5f9726773b654f8e1cfd6ec1a989c558fa164b (patch)
treea5e95316bb03a16c10def39627f0a13a0cba4084
parent1112cf4c4109473fd8a30a4678d25f9321ef5d67 (diff)
Documentation: dt-bindings: Add snps,need-phy-for-wake for dwc2 USB
Some SoCs with a dwc2 USB controller may need to keep the PHY on to support remote wakeup. Allow specifying this as a device tree property. Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
-rw-r--r--Documentation/devicetree/bindings/usb/dwc2.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/usb/dwc2.txt b/Documentation/devicetree/bindings/usb/dwc2.txt
index 49eac0dc86b0..aafff3a6904d 100644
--- a/Documentation/devicetree/bindings/usb/dwc2.txt
+++ b/Documentation/devicetree/bindings/usb/dwc2.txt
@@ -42,6 +42,8 @@ Refer to phy/phy-bindings.txt for generic phy consumer properties
- g-rx-fifo-size: size of rx fifo size in gadget mode.
- g-np-tx-fifo-size: size of non-periodic tx fifo size in gadget mode.
- g-tx-fifo-size: size of periodic tx fifo per endpoint (except ep0) in gadget mode.
+- snps,need-phy-for-wake: If present indicates that the phy needs to be left
+ on for remote wakeup during suspend.
- snps,reset-phy-on-wake: If present indicates that we need to reset the PHY when
we detect a wakeup. This is due to a hardware errata.
@@ -58,4 +60,5 @@ Example:
clock-names = "otg";
phys = <&usbphy>;
phy-names = "usb2-phy";
+ snps,need-phy-for-wake;
};