* [PATCH] arm64: dts: rockchip: add rfkill node for M.2 Key E Bluetooth on Rock 5B
@ 2024-05-17 12:25 Alexey Charkov
2024-05-28 15:09 ` Heiko Stuebner
0 siblings, 1 reply; 2+ messages in thread
From: Alexey Charkov @ 2024-05-17 12:25 UTC (permalink / raw)
To: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Heiko Stuebner
Cc: Alexey Charkov, devicetree, linux-arm-kernel, linux-rockchip,
linux-kernel
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 <alchark@gmail.com>
---
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 b70313643af8..27dd95f92f33 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 @@ rfkill {
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;
--
2.45.0
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: [PATCH] arm64: dts: rockchip: add rfkill node for M.2 Key E Bluetooth on Rock 5B
2024-05-17 12:25 [PATCH] arm64: dts: rockchip: add rfkill node for M.2 Key E Bluetooth on Rock 5B Alexey Charkov
@ 2024-05-28 15:09 ` Heiko Stuebner
0 siblings, 0 replies; 2+ messages in thread
From: Heiko Stuebner @ 2024-05-28 15:09 UTC (permalink / raw)
To: Krzysztof Kozlowski, Conor Dooley, Alexey Charkov, Rob Herring
Cc: Heiko Stuebner, linux-rockchip, linux-kernel, linux-arm-kernel,
devicetree
On Fri, 17 May 2024 16:25:08 +0400, Alexey Charkov wrote:
> 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.
>
> [...]
Applied, thanks!
[1/1] arm64: dts: rockchip: add rfkill node for M.2 Key E Bluetooth on Rock 5B
commit: 1d3ac84d6a960baa50da4163160ae82f8dc74af6
Best regards,
--
Heiko Stuebner <heiko@sntech.de>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2024-05-17 12:25 [PATCH] arm64: dts: rockchip: add rfkill node for M.2 Key E Bluetooth on Rock 5B Alexey Charkov
2024-05-28 15:09 ` Heiko Stuebner
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