On Wed, 30 Sep 2020 17:35:31 -0500, 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(-)
>
My bot found errors running 'make dt_binding_check' on your patch:
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.yaml: properties:ti,backlight-scale: {'description': 'The granularity of brightness for the PWM signal provided on GPIO4, if this property is specified.', 'minimum': 0, 'maximum': 65535} is not valid under any of the given schemas (Possible causes of the failure):
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.yaml: properties:ti,backlight-scale: 'not' is a required property
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.yaml: ignoring, error in schema: properties: ti,backlight-scale
warning: no schema found in file: ./Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.yaml
See https://patchwork.ozlabs.org/patch/1374751
If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure dt-schema is up to date:
pip3 install git+https://github.com/devicetree-org/dt-schema.git@master --upgrade
Please check and re-submit.
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