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dt-bindings: sun6i-dsi: Add VCC-DSI supply property

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Allwinner MIPI DSI controllers are supplied with SoC DSI
power rails via VCC-DSI pin.

Some board still work without supplying this but give more
faith on datasheet and hardware schematics and document this
supply property in required property list.

Reviewed-by: Rob Herring <robh@kernel.org>
Tested-by: Merlijn Wajer <merlijn@wizzup.org>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191003064527.15128-5-jagan@amarulasolutions.com
This commit is contained in:
Jagan Teki 2019-10-03 12:15:24 +05:30 committed by Maxime Ripard
parent d8db0b36d8
commit 8a317f223b
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1 changed files with 5 additions and 0 deletions
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Documentation/devicetree/bindings/display/allwinner,sun6i-a31-mipi-dsi.yaml
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@ -36,6 +36,9 @@ properties:
resets:
maxItems: 1
vcc-dsi-supply:
description: VCC-DSI power supply of the DSI encoder
phys:
maxItems: 1
@ -64,6 +67,7 @@ required:
- phys
- phy-names
- resets
- vcc-dsi-supply
- port
additionalProperties: false
@ -79,6 +83,7 @@ examples:
resets = <&ccu 4>;
phys = <&dphy0>;
phy-names = "dphy";
vcc-dsi-supply = <&reg_dcdc1>;
#address-cells = <1>;
#size-cells = <0>;