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 <alchark@gmail.com>
Link: https://lore.kernel.org/r/20240106202650.22310-1-alchark@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
index a0e303c3a1dc6d839528188571cb53c2759535fa..9b7bf6cec8bd1e6f18abc824a5cd7ddebaac3c00 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
@@ -58,6 +58,13 @@
                #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;