On Sat, Apr 13, 2019 at 06:54:15PM +0200, megous@xxxxxxxxxx wrote: > From: Ondrej Jirman <megous@xxxxxxxxxx> > > Some Allwinner SoC using boards (Orange Pi 3 for example) need to enable > on-board voltage shifting logic for the DDC bus to be usable. Use > ddc-supply on the hdmi-connector to model this. > > Add binding documentation for optional ddc-supply property. > > Signed-off-by: Ondrej Jirman <megous@xxxxxxxxxx> > --- > .../devicetree/bindings/display/connector/hdmi-connector.txt | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/Documentation/devicetree/bindings/display/connector/hdmi-connector.txt b/Documentation/devicetree/bindings/display/connector/hdmi-connector.txt > index 508aee461e0d..33085aeb0bb9 100644 > --- a/Documentation/devicetree/bindings/display/connector/hdmi-connector.txt > +++ b/Documentation/devicetree/bindings/display/connector/hdmi-connector.txt > @@ -9,6 +9,7 @@ Optional properties: > - label: a symbolic name for the connector > - hpd-gpios: HPD GPIO number > - ddc-i2c-bus: phandle link to the I2C controller used for DDC EDID probing > +- ddc-supply: the power supply for the DDC bus It's not just for DDC. It powers the chips in bridge dongles for example. Pretty much every diagram I find just calls it 5V or +5V. So how about '5V-supply' or 'v5V-supply'? Rob
