From d5272d39995f4150062a67e6f2cef556edece740 Mon Sep 17 00:00:00 2001 From: Flavio Suligoi Date: Mon, 16 Oct 2023 17:05:54 +0200 Subject: dt-bindings: backlight: Add brightness-levels related common properties Both files pwm-backlight.yaml and led-backlight.yaml contain properties in common with each other, regarding the brightness levels: - brightness-levels - default-brightness-level These properties can then be moved to backlight/common.yaml. Signed-off-by: Flavio Suligoi Reviewed-by: Krzysztof Kozlowski Reviewed-by: Rob Herring Link: https://lore.kernel.org/r/20231016150554.27144-1-f.suligoi@asem.it Signed-off-by: Lee Jones --- .../devicetree/bindings/leds/backlight/common.yaml | 17 +++++++++++++++++ .../bindings/leds/backlight/led-backlight.yaml | 19 ++++--------------- .../bindings/leds/backlight/pwm-backlight.yaml | 20 ++++---------------- 3 files changed, 25 insertions(+), 31 deletions(-) (limited to 'Documentation/devicetree/bindings/leds') diff --git a/Documentation/devicetree/bindings/leds/backlight/common.yaml b/Documentation/devicetree/bindings/leds/backlight/common.yaml index 3b60afbab68b..e0983e44934c 100644 --- a/Documentation/devicetree/bindings/leds/backlight/common.yaml +++ b/Documentation/devicetree/bindings/leds/backlight/common.yaml @@ -33,4 +33,21 @@ properties: due to restrictions in a specific system, such as mounting conditions. $ref: /schemas/types.yaml#/definitions/uint32 + brightness-levels: + description: + Array of distinct brightness levels. The levels must be in the range + accepted by the underlying LED device. Typically these are in the range + from 0 to 255, but any range starting at 0 will do, as long as they are + accepted by the LED. + The 0 value means a 0% of brightness (darkest/off), while the last value + in the array represents a full 100% brightness (brightest). + If this array is not provided, the driver default mapping is used. + $ref: /schemas/types.yaml#/definitions/uint32-array + + default-brightness-level: + description: + The default brightness level (index into the array defined by the + "brightness-levels" property). + $ref: /schemas/types.yaml#/definitions/uint32 + additionalProperties: true diff --git a/Documentation/devicetree/bindings/leds/backlight/led-backlight.yaml b/Documentation/devicetree/bindings/leds/backlight/led-backlight.yaml index d7b78198abc2..f5554da6bc6c 100644 --- a/Documentation/devicetree/bindings/leds/backlight/led-backlight.yaml +++ b/Documentation/devicetree/bindings/leds/backlight/led-backlight.yaml @@ -16,6 +16,9 @@ description: can also be used to describe a backlight device controlled by the output of a LED driver. +allOf: + - $ref: common.yaml# + properties: compatible: const: led-backlight @@ -26,25 +29,11 @@ properties: items: maxItems: 1 - brightness-levels: - description: - Array of distinct brightness levels. The levels must be in the range - accepted by the underlying LED devices. This is used to translate a - backlight brightness level into a LED brightness level. If it is not - provided, the identity mapping is used. - $ref: /schemas/types.yaml#/definitions/uint32-array - - default-brightness-level: - description: - The default brightness level (index into the array defined by the - "brightness-levels" property). - $ref: /schemas/types.yaml#/definitions/uint32 - required: - compatible - leds -additionalProperties: false +unevaluatedProperties: false examples: - | diff --git a/Documentation/devicetree/bindings/leds/backlight/pwm-backlight.yaml b/Documentation/devicetree/bindings/leds/backlight/pwm-backlight.yaml index 535690288990..b71f6454a4ac 100644 --- a/Documentation/devicetree/bindings/leds/backlight/pwm-backlight.yaml +++ b/Documentation/devicetree/bindings/leds/backlight/pwm-backlight.yaml @@ -11,6 +11,9 @@ maintainers: - Daniel Thompson - Jingoo Han +allOf: + - $ref: common.yaml# + properties: compatible: const: pwm-backlight @@ -39,21 +42,6 @@ properties: Delay in ms between disabling the backlight using GPIO and setting PWM value to 0. - brightness-levels: - description: - Array of distinct brightness levels. Typically these are in the range - from 0 to 255, but any range starting at 0 will do. The actual brightness - level (PWM duty cycle) will be interpolated from these values. 0 means a - 0% duty cycle (darkest/off), while the last value in the array represents - a 100% duty cycle (brightest). - $ref: /schemas/types.yaml#/definitions/uint32-array - - default-brightness-level: - description: - The default brightness level (index into the array defined by the - "brightness-levels" property). - $ref: /schemas/types.yaml#/definitions/uint32 - num-interpolated-steps: description: Number of interpolated steps between each value of brightness-levels @@ -69,7 +57,7 @@ required: - compatible - pwms -additionalProperties: false +unevaluatedProperties: false examples: - | -- cgit v1.2.3