From: Maxime Ripard Date: Thu, 29 Oct 2020 13:40:16 +0000 (+0100) Subject: dt-bindings: display: Add a property to deal with WiFi coexistence X-Git-Tag: baikal/mips/sdk5.9~12156^2^2~5 X-Git-Url: https://git.baikalelectronics.ru/sdk/?a=commitdiff_plain;h=df08e050fd3b543ab8342ee0f8b82f8e69582a86;p=kernel.git 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: Maxime Ripard Reviewed-by: Nicolas Saenz Julienne Reviewed-by: Rob Herring Link: https://patchwork.freedesktop.org/patch/msgid/20201029134018.1948636-1-maxime@cerno.tech --- diff --git a/Documentation/devicetree/bindings/display/brcm,bcm2711-hdmi.yaml b/Documentation/devicetree/bindings/display/brcm,bcm2711-hdmi.yaml index 03a76729d26cf..7ce06f9f9f8ee 100644 --- a/Documentation/devicetree/bindings/display/brcm,bcm2711-hdmi.yaml +++ b/Documentation/devicetree/bindings/display/brcm,bcm2711-hdmi.yaml @@ -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