| Message ID | 20190412224149.106971-2-dianders@chromium.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | usb: dwc2: Another attempt handling rk3288's remote wake quirk | expand |
On Fri, Apr 12, 2019 at 03:41:46PM -0700, Douglas Anderson wrote: > 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> > --- > > Documentation/devicetree/bindings/usb/dwc2.txt | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/Documentation/devicetree/bindings/usb/dwc2.txt b/Documentation/devicetree/bindings/usb/dwc2.txt > index 6dc3c4a34483..f70f3aee4bfc 100644 > --- a/Documentation/devicetree/bindings/usb/dwc2.txt > +++ b/Documentation/devicetree/bindings/usb/dwc2.txt > @@ -37,6 +37,8 @@ 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 Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
diff --git a/Documentation/devicetree/bindings/usb/dwc2.txt b/Documentation/devicetree/bindings/usb/dwc2.txt index 6dc3c4a34483..f70f3aee4bfc 100644 --- a/Documentation/devicetree/bindings/usb/dwc2.txt +++ b/Documentation/devicetree/bindings/usb/dwc2.txt @@ -37,6 +37,8 @@ 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
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> --- Documentation/devicetree/bindings/usb/dwc2.txt | 2 ++ 1 file changed, 2 insertions(+)