From: Alexandru Gagniuc <mr.nuke.me@xxxxxxxxx> commit 4c1e054322da99cbfd293a5fddf283f2fdb3e2d0 upstream. The sii902x chip family requires IO and core voltages to reach the correct voltage before chip initialization. Add binding for describing the two supplies. Signed-off-by: Alexandru Gagniuc <mr.nuke.me@xxxxxxxxx> Acked-by: Rob Herring <robh@xxxxxxxxxx> Signed-off-by: Sam Ravnborg <sam@xxxxxxxxxxxx> Link: https://patchwork.freedesktop.org/patch/msgid/20201020221501.260025-3-mr.nuke.me@xxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- Documentation/devicetree/bindings/display/bridge/sii902x.txt | 4 ++++ 1 file changed, 4 insertions(+) --- a/Documentation/devicetree/bindings/display/bridge/sii902x.txt +++ b/Documentation/devicetree/bindings/display/bridge/sii902x.txt @@ -8,6 +8,8 @@ Optional properties: - interrupts: describe the interrupt line used to inform the host about hotplug events. - reset-gpios: OF device-tree gpio specification for RST_N pin. + - iovcc-supply: I/O Supply Voltage (1.8V or 3.3V) + - cvcc12-supply: Digital Core Supply Voltage (1.2V) HDMI audio properties: - #sound-dai-cells: <0> or <1>. <0> if only i2s or spdif pin @@ -54,6 +56,8 @@ Example: compatible = "sil,sii9022"; reg = <0x39>; reset-gpios = <&pioA 1 0>; + iovcc-supply = <&v3v3_hdmi>; + cvcc12-supply = <&v1v2_hdmi>; #sound-dai-cells = <0>; sil,i2s-data-lanes = < 0 1 2 >;
