From: Yogesh Hegde <yogi.kernel@xxxxxxxxx>
commit ebceec271e552a2b05e47d8ef0597052b1a39449 upstream.
This patch fixes an issue affecting the Wifi/Bluetooth connectivity on
ROCK Pi 4 boards. Commit f471b1b2db08 ("arm64: dts: rockchip: Fix Bluetooth
on ROCK Pi 4 boards") introduced a problem with the clock configuration.
Specifically, the clock-names property of the sdio-pwrseq node was not
updated to 'lpo', causing the driver to wait indefinitely for the wrong clock
signal 'ext_clock' instead of the expected one 'lpo'. This prevented the proper
initialization of Wifi/Bluetooth chip on ROCK Pi 4 boards.
To address this, this patch updates the clock-names property of the
sdio-pwrseq node to "lpo" to align with the changes made to the bluetooth node.
This patch has been tested on ROCK Pi 4B.
Fixes: f471b1b2db08 ("arm64: dts: rockchip: Fix Bluetooth on ROCK Pi 4 boards")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Yogesh Hegde <yogi.kernel@xxxxxxxxx>
Link: https://lore.kernel.org/r/ZLbATQRjOl09aLAp@zephyrusG14
Signed-off-by: Heiko Stuebner <heiko@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
@@ -45,7 +45,7 @@
sdio_pwrseq: sdio-pwrseq {
compatible = "mmc-pwrseq-simple";
clocks = <&rk808 1>;
- clock-names = "ext_clock";
+ clock-names = "lpo";
pinctrl-names = "default";
pinctrl-0 = <&wifi_enable_h>;
reset-gpios = <&gpio0 RK_PB2 GPIO_ACTIVE_LOW>;
