Update the gpio-backlight binding to support configurations that require more than one GPIO for enabling/disabling the backlight.
Signed-off-by: Sudarshan Shetty <[email protected]> --- .../leds/backlight/gpio-backlight.yaml | 24 +++++++++++++++++-- 1 file changed, 22 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/leds/backlight/gpio-backlight.yaml b/Documentation/devicetree/bindings/leds/backlight/gpio-backlight.yaml index 584030b6b0b9..4e4a856cbcd7 100644 --- a/Documentation/devicetree/bindings/leds/backlight/gpio-backlight.yaml +++ b/Documentation/devicetree/bindings/leds/backlight/gpio-backlight.yaml @@ -16,8 +16,18 @@ properties: const: gpio-backlight gpios: - description: The gpio that is used for enabling/disabling the backlight. - maxItems: 1 + description: | + The gpio that is used for enabling/disabling the backlight. + Multiple GPIOs can be specified for panels that require several + enable signals. All GPIOs are controlled together. + type: array + minItems: 1 + items: + type: array + minItems: 3 + maxItems: 3 + items: + type: integer default-on: description: enable the backlight at boot. @@ -38,4 +48,14 @@ examples: default-on; }; + - | + #include <dt-bindings/gpio/gpio.h> + backlight { + compatible = "gpio-backlight"; + gpios = <&gpio3 4 GPIO_ACTIVE_HIGH>, + <&gpio3 5 GPIO_ACTIVE_HIGH>, + <&gpio3 6 GPIO_ACTIVE_HIGH>; + default-on; + }; + ... -- 2.34.1
