lkml.org 
[lkml]   [2020]   [Sep]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH 1/2] dt-bindings: drm/bridge: ti-sn65dsi86: Replace #pwm-cells
From
Date

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@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


Tested-By: Steev Klimaszewski <steev@kali.org>

\
 
 \ /
  Last update: 2020-10-01 01:08    [W:0.082 / U:7.948 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site