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* [PATCH] rockchip: arm64: dts: rockchip: Fix incorrect interrupt for the 9Tripod X3568 v4
@ 2026-07-02 20:24 Coia Prant
  0 siblings, 0 replies; only message in thread
From: Coia Prant @ 2026-07-02 20:24 UTC (permalink / raw)
  To: Heiko Stuebner; +Cc: linux-rockchip, linux-kernel, Coia Prant

The recently changes for 9Tripod X3568 mistakenly configured
the WiFi host-wake interrupt trigger type as IRQ_TYPE_LEVEL_LOW.

However, the associated pin `wifi_host_wake_irq` is configured
with an internal pull-down resistor.

When the WiFi module enters a low-power sleep state and leaves
the pin floating, this pull-down bias drives the pin low.

Since the interrupt is incorrectly set to level-low, this combination
traps the kernel in an endless interrupt loop.

Correct the interrupt trigger type to IRQ_TYPE_LEVEL_HIGH based on the
actual hardware logic: the pin is kept low by default and driven high by
the WiFi module to wake up the host.

Fixes: 993555b5476c ("arm64: dts: rockchip: Add AP6275S support for 9Tripod X3568 v4")
Signed-off-by: Coia Prant <coiaprant@gmail.com>
---
 arch/arm64/boot/dts/rockchip/rk3568-9tripod-x3568-v4.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3568-9tripod-x3568-v4.dts b/arch/arm64/boot/dts/rockchip/rk3568-9tripod-x3568-v4.dts
index e3f53fcf80e0..b48c0c9ba112 100644
--- a/arch/arm64/boot/dts/rockchip/rk3568-9tripod-x3568-v4.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3568-9tripod-x3568-v4.dts
@@ -799,7 +799,7 @@ wifi@1 {
 		compatible = "brcm,bcm43752-fmac", "brcm,bcm4329-fmac";
 		reg = <1>;
 		interrupt-parent = <&gpio3>;
-		interrupts = <RK_PD4 IRQ_TYPE_LEVEL_LOW>;
+		interrupts = <RK_PD4 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-names = "host-wake";
 		pinctrl-names = "default";
 		pinctrl-0 = <&wifi_host_wake_irq>;
-- 
2.47.3


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