On 9/30/20 5:35 PM, Bjorn Andersson wrote: > 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@xxxxxxxxxx> > --- > .../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 Tested-By: Steev Klimaszewski <steev@xxxxxxxx>
