2024-01-24 20:31:24

by Alexey Charkov

[permalink] [raw]
Subject: [PATCH 1/4] arm64: dts: rockchip: add rfkill node for M.2 Key E WiFi on rock-5b

By default the GPIO pin that connects to the WiFi enable signal
inside the M.2 Key E slot is driven low, resulting in impossibility
to connect to any network. Add a DT node to expose it as an RFKILL
device, which lets the WiFi driver or userspace toggle it as
required.

Signed-off-by: Alexey Charkov <[email protected]>
---
arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
index a0e303c3a1dc..9b7bf6cec8bd 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
@@ -58,6 +58,13 @@ fan: pwm-fan {
#cooling-cells = <2>;
};

+ rfkill {
+ compatible = "rfkill-gpio";
+ label = "rfkill-pcie-wlan";
+ radio-type = "wlan";
+ shutdown-gpios = <&gpio4 RK_PA2 GPIO_ACTIVE_HIGH>;
+ };
+
vcc3v3_pcie2x1l0: vcc3v3-pcie2x1l0-regulator {
compatible = "regulator-fixed";
enable-active-high;

--
2.43.0