Messages in this thread Patch in this message |  | | From | Bjorn Andersson <> | Subject | [PATCH 1/2] dt-bindings: drm/bridge: ti-sn65dsi86: Replace #pwm-cells | Date | Wed, 30 Sep 2020 17:35:31 -0500 |
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While the signal on GPIO4 to drive the backlight controller indeed is pulse width modulated its purpose is specifically to control the brightness of a backlight.
Drop the #pwm-cells and instead expose a new property to configure the granularity of the backlight PWM signal.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> --- .../devicetree/bindings/display/bridge/ti,sn65dsi86.yaml | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.yaml b/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.yaml index f8622bd0f61e..e380218b4646 100644 --- a/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.yaml +++ b/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.yaml @@ -66,9 +66,12 @@ properties: 1-based to match the datasheet. See ../../gpio/gpio.txt for more information. - '#pwm-cells': - const: 1 - description: See ../../pwm/pwm.yaml for description of the cell formats. + ti,backlight-scale: + description: + The granularity of brightness for the PWM signal provided on GPIO4, if + this property is specified. + minimum: 0 + maximum: 65535 ports: type: object -- 2.28.0
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