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dt-bindings: display: panel: himax,hx83121a: add optional bl supply

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When the backlight is managed by the panel controller IC, an external
power rail might be powering the backlight.

Add an optional `bl-supply` property to describe such power rail, thus
allow disabling the backlight.

Signed-off-by: Icenowy Zheng <zhengxingda@iscas.ac.cn>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20260608162622.403713-1-zhengxingda@iscas.ac.cn
This commit is contained in:
Icenowy Zheng
2026-06-09 00:26:20 +08:00
committed by Neil Armstrong
parent 99e9aca83b
commit b817a59c2a
1 changed files with 3 additions and 0 deletions
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3
Documentation/devicetree/bindings/display/panel/himax,hx83121a.yaml
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@@ -40,6 +40,9 @@ properties:
vddi-supply:
description: power supply for IC
bl-supply:
description: power supply for backlight, in case it's managed via DSC
backlight: true
ports: true