ARM: dts: rpi-4: disable wifi frequencies

The RPi4 WiFi chip and HDMI outputs have some frequency overlap with
crosstalk around 2.4GHz. Let's mark it as such so we can use some evasive
maneuvers.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Link: https://lore.kernel.org/r/20201029134018.1948636-3-maxime@cerno.tech

diff --git a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
index 09a1182c29363f6b26d90549df8106f9705f86f8..403bacf986ebb4b9d62b9f83d636903139fe2aa6 100644 (file)
--- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
+++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
@@ -181,12 +181,14 @@
 &hdmi0 {
        clocks = <&firmware_clocks 13>, <&firmware_clocks 14>, <&dvp 0>, <&clk_27MHz>;
        clock-names = "hdmi", "bvb", "audio", "cec";
+       wifi-2.4ghz-coexistence;
        status = "okay";
 };
 
 &hdmi1 {
        clocks = <&firmware_clocks 13>, <&firmware_clocks 14>, <&dvp 1>, <&clk_27MHz>;
        clock-names = "hdmi", "bvb", "audio", "cec";
+       wifi-2.4ghz-coexistence;
        status = "okay";
 };