[PATCH] arm64: dts: qcom: hamoa/x1: fix idle exit latency
From: Daniel J Blueman
Date: Fri Feb 20 2026 - 02:02:28 EST
Designs based on the Qualcomm X1 Hamoa reference platform report:
driver: Idle state 1 target residency too low
This is because the declared X1 idle entry plus exit latency of 680us
exceeds the declared minimum 600us residency time:
entry-latency-us = <180>;
exit-latency-us = <500>;
min-residency-us = <600>;
As 500us idle exit latency is overly conservative, fix this to be a more
realistic 200us, in range of similar silicon. Tested on a Lenovo Yoga Slim
7x with Qualcomm X1E-80-100.
Signed-off-by: Daniel J Blueman <daniel@xxxxxxxxx>
---
arch/arm64/boot/dts/qcom/hamoa.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/qcom/hamoa.dtsi b/arch/arm64/boot/dts/qcom/hamoa.dtsi
index a17900eacb20..b870f4dc9c42 100644
--- a/arch/arm64/boot/dts/qcom/hamoa.dtsi
+++ b/arch/arm64/boot/dts/qcom/hamoa.dtsi
@@ -269,7 +269,7 @@ cluster_c4: cpu-sleep-0 {
idle-state-name = "ret";
arm,psci-suspend-param = <0x00000004>;
entry-latency-us = <180>;
- exit-latency-us = <500>;
+ exit-latency-us = <200>;
min-residency-us = <600>;
};
};
--
2.51.0