From 358afb8b746d4a7ebaeeeaab7a1523895a8572c2 Mon Sep 17 00:00:00 2001

From: Maxime Ripard <maxime@cerno.tech>

Date: Thu, 29 Oct 2020 14:40:18 +0100

Subject: 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

---

 arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 2 ++

 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts

index 09a1182c29363..403bacf986ebb 100644

--- 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";

 };

-- 

cgit 1.2.3-1.el7