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authorDouglas Anderson <dianders@chromium.org>2019-04-16 14:53:48 -0700
committerFelipe Balbi <felipe.balbi@linux.intel.com>2019-05-03 09:13:47 +0300
commitcc389eaabd7082a14e46aaa5a02f87c9eef37d7f (patch)
tree9ce047c8d1b6cf258326bbfbcd4c0969c27badf8 /Documentation/devicetree/bindings/usb
parent86847dca8b8bd6145f41986399b4b882a6b55623 (diff)
dt-bindings: usb: dwc2: Document quirk to reset PHY upon wakeup
On Rockchip rk3288 there's a hardware quirk where we need to assert the reset signal to the PHY when we get a remote wakeup on one of the two ports. Document this quirk in the bindings. Signed-off-by: Douglas Anderson <dianders@chromium.org> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'Documentation/devicetree/bindings/usb')
-rw-r--r--Documentation/devicetree/bindings/usb/dwc2.txt2
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/usb/dwc2.txt b/Documentation/devicetree/bindings/usb/dwc2.txt
index 0294572deea3..49eac0dc86b0 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,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.
Deprecated properties:
- g-use-dma: gadget DMA mode is automatically detected