From 1d3ac84d6a960baa50da4163160ae82f8dc74af6 Mon Sep 17 00:00:00 2001 From: Alexey Charkov Date: Fri, 17 May 2024 16:25:08 +0400 Subject: [PATCH] arm64: dts: rockchip: add rfkill node for M.2 Key E Bluetooth on Rock 5B By default the BT WAKE signal inside the M.2 key E connector on Radxa Rock 5B is driven low, which results in the Bluetooth function being disabled even if the inserted M.2 card supports it. Expose this signal as an RFKILL device so that it can be enabled by the userspace. Tested with an Intel AX210 card, which connects a Bluetooth device over the USB 2.0 bus. Signed-off-by: Alexey Charkov Link: https://lore.kernel.org/r/20240517122509.4626-1-alchark@gmail.com Signed-off-by: Heiko Stuebner --- 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 b8e15b76a8a6c..4e2bf4eaef2b3 100644 --- a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts +++ b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts @@ -65,6 +65,13 @@ shutdown-gpios = <&gpio4 RK_PA2 GPIO_ACTIVE_HIGH>; }; + rfkill-bt { + compatible = "rfkill-gpio"; + label = "rfkill-m2-bt"; + radio-type = "bluetooth"; + shutdown-gpios = <&gpio3 RK_PD5 GPIO_ACTIVE_HIGH>; + }; + vcc3v3_pcie2x1l0: vcc3v3-pcie2x1l0-regulator { compatible = "regulator-fixed"; enable-active-high;