diff options
Diffstat (limited to 'SOURCES/arm-dts-rpi-4-disable-wifi-frequencies.patch')
| -rw-r--r-- | SOURCES/arm-dts-rpi-4-disable-wifi-frequencies.patch | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/SOURCES/arm-dts-rpi-4-disable-wifi-frequencies.patch b/SOURCES/arm-dts-rpi-4-disable-wifi-frequencies.patch new file mode 100644 index 0000000..fc16393 --- /dev/null +++ b/SOURCES/arm-dts-rpi-4-disable-wifi-frequencies.patch @@ -0,0 +1,37 @@ +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 |