arm64: dts: qcom: qrb4210-rb2: Fix UART3 wakeup IRQ storm

Follow commit 9c92d36b0b1e ("arm64: dts: qcom: qrb2210-rb1: Fix UART3
wakeup IRQ storm") and apply the similar fix to the RB2 platform.

Having RX / TX pins as pull up and wakup interrupt as high-level
triggered generates an interrupt storm when trying to suspend the
device. Avoid the storm by using the falling edge trigger (as all other
platforms do).

Fixes: cab60b166575 ("arm64: dts: qcom: qrb4210-rb2: Enable bluetooth")
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260106-wcn3990-pwrctl-v2-6-0386204328be@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

diff --git a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
index 0cd36c54632fa32353e679193f25a12c6e5c4a49..5f8613150bdd2913d5517cca4356f5ab14735b2a 100644 (file)
--- a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
+++ b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
@@ -694,7 +694,7 @@
 
 &uart3 {
        interrupts-extended = <&intc GIC_SPI 330 IRQ_TYPE_LEVEL_HIGH>,
-                             <&tlmm 11 IRQ_TYPE_LEVEL_HIGH>;
+                             <&tlmm 11 IRQ_TYPE_EDGE_FALLING>;
        pinctrl-0 = <&uart3_default>;
        pinctrl-1 = <&uart3_sleep>;
        pinctrl-names = "default", "sleep";