dt-bindings: display: sii902x: Add supply bindings

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@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20201020221501.260025-3-mr.nuke.me@gmail.com

diff --git a/Documentation/devicetree/bindings/display/bridge/sii902x.txt b/Documentation/devicetree/bindings/display/bridge/sii902x.txt
index 0d1db3f9da84f19eb9400ab4d02da2856e4d2687..02c21b58474189fe956e83189f622c5359c1faa7 100644 (file)
--- 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 >;