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dt-bindings: usb: dwc2: Document quirk to reset PHY upon wakeup

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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>
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Douglas Anderson 2019-04-16 14:53:48 -07:00 committed by Felipe Balbi
parent 86847dca8b
commit cc389eaabd
1 changed files with 2 additions and 0 deletions
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Documentation/devicetree/bindings/usb/dwc2.txt
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@ -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