From c5dc4812f6bf397b82290c540085e9ec98b47b30 Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Tue, 6 Jan 2026 03:01:16 +0200 Subject: [PATCH] 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 Signed-off-by: Dmitry Baryshkov Link: https://lore.kernel.org/r/20260106-wcn3990-pwrctl-v2-6-0386204328be@oss.qualcomm.com Signed-off-by: Bjorn Andersson --- arch/arm64/boot/dts/qcom/qrb4210-rb2.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts index 0cd36c54632fa..5f8613150bdd2 100644 --- 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"; -- 2.47.3