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 09a1182..403bacf 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";
 };