Unverified Commit 8d15aa4e authored by Maxime Ripard's avatar Maxime Ripard
Browse files

dt-bindings: display: Add a property to deal with WiFi coexistence 



The RaspberryPi4 has both a WiFi chip and HDMI outputs capable of doing
4k. Unfortunately, the 1440p resolution at 60Hz has a TMDS rate on the
HDMI cable right in the middle of the first Wifi channel.

Add a property to our HDMI controller, that could be reused by other
similar HDMI controllers, to allow the OS to take whatever measure is
necessary to avoid that crosstalk.

Signed-off-by: default avatarMaxime Ripard <maxime@cerno.tech>
Reviewed-by: default avatarNicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20201029134018.1948636-1-maxime@cerno.tech
parent b5dbc4d3

Documentation/devicetree/bindings/display/brcm,bcm2711-hdmi.yaml

+6 −0
Original line number Diff line number Diff line
@@ -76,6 +76,12 @@ properties: 
  resets:

    maxItems: 1



  wifi-2.4ghz-coexistence:

    type: boolean

    description: >

      Should the pixel frequencies in the WiFi frequencies range be

      avoided?



required:

  - compatible

  - reg