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authorMaxime Ripard <maxime@cerno.tech>2020-10-29 16:40:16 +0300
committerMaxime Ripard <maxime@cerno.tech>2020-11-19 17:44:14 +0300
commit8d15aa4ed02bed2f5b0720480ab8eb032dc0887e (patch)
tree03ef5399d7d2cba65a4ddbce069160e7dc40ab72 /Documentation
parentb5dbc4d36885bef6257054a737a76101d293b185 (diff)
downloadlinux-8d15aa4ed02bed2f5b0720480ab8eb032dc0887e.tar.xz
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 <maxime@cerno.tech> Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20201029134018.1948636-1-maxime@cerno.tech
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/display/brcm,bcm2711-hdmi.yaml6
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/display/brcm,bcm2711-hdmi.yaml b/Documentation/devicetree/bindings/display/brcm,bcm2711-hdmi.yaml
index 03a76729d26c..7ce06f9f9f8e 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