On Sat, Feb 05, 2022 at 07:53:28PM +0100, Paul Kocialkowski wrote: > The Allwinner A31 MIPI D-PHY block supports both tx and rx directions, > although each instance of the block is meant to be used in one > direction only. There will typically be one instance for MIPI DSI and > one for MIPI CSI-2 (it seems unlikely to ever see a shared instance). > > Describe the direction with a new allwinner,direction property. > For backwards compatibility, the property is optional and tx mode > should be assumed by default. > > Signed-off-by: Paul Kocialkowski <paul.kocialkowski@xxxxxxxxxxx> > --- > .../bindings/phy/allwinner,sun6i-a31-mipi-dphy.yaml | 12 ++++++++++++ > 1 file changed, 12 insertions(+) > > diff --git a/Documentation/devicetree/bindings/phy/allwinner,sun6i-a31-mipi-dphy.yaml b/Documentation/devicetree/bindings/phy/allwinner,sun6i-a31-mipi-dphy.yaml > index d0b541a461f3..22636c9fdab8 100644 > --- a/Documentation/devicetree/bindings/phy/allwinner,sun6i-a31-mipi-dphy.yaml > +++ b/Documentation/devicetree/bindings/phy/allwinner,sun6i-a31-mipi-dphy.yaml > @@ -37,6 +37,18 @@ properties: > resets: > maxItems: 1 > > + allwinner,direction: > + $ref: '/schemas/types.yaml#/definitions/string' > + description: | > + Direction of the D-PHY: > + - "rx" for receiving (e.g. when used with MIPI CSI-2); > + - "tx" for transmitting (e.g. when used with MIPI DSI). > + > + enum: > + - tx > + - rx > + default: tx Can you the phy mode to imply the direction? Rob
