Commit 3ecea84d authored by Daniel J Blueman's avatar Daniel J Blueman Committed by Bjorn Andersson
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arm64: dts: qcom: hamoa/x1: fix idle exit latency 



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>;

Fix this to be 320us so the sum of the entry and exit latencies matches
the downstream 500us exit latency, as directed by Maulik.

Tested on a Lenovo Yoga Slim 7x with Qualcomm X1E-80-100.

Fixes: 2e65616e ("arm64: dts: qcom: x1e80100: Update C4/C5 residency/exit numbers")
Signed-off-by: default avatarDaniel J Blueman <daniel@quora.org>
Reviewed-by: default avatarKonrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260220124626.8611-1-daniel@quora.org


Signed-off-by: default avatarBjorn Andersson <andersson@kernel.org>
parent 6de23f81

arch/arm64/boot/dts/qcom/hamoa.dtsi

+1 −1
Original line number Diff line number Diff line
@@ -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 = <320>;

				min-residency-us = <600>;

			};

		};