diff options
| author | Daniel J Blueman <daniel@quora.org> | 2026-02-20 15:44:58 +0300 |
|---|---|---|
| committer | Bjorn Andersson <andersson@kernel.org> | 2026-02-23 18:43:56 +0300 |
| commit | 3ecea84d2b90bbf934d5ca75514fa902fd71e03f (patch) | |
| tree | e43bb12c1ce5ef475b179106a65ce1c8905668e6 | |
| parent | 6de23f81a5e08be8fbf5e8d7e9febc72a5b5f27f (diff) | |
| download | linux-3ecea84d2b90bbf934d5ca75514fa902fd71e03f.tar.xz | |
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: 2e65616ef07f ("arm64: dts: qcom: x1e80100: Update C4/C5 residency/exit numbers")
Signed-off-by: Daniel J Blueman <daniel@quora.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260220124626.8611-1-daniel@quora.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
| -rw-r--r-- | arch/arm64/boot/dts/qcom/hamoa.dtsi | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/boot/dts/qcom/hamoa.dtsi b/arch/arm64/boot/dts/qcom/hamoa.dtsi index db65c392e618..4b0784af4bd3 100644 --- a/arch/arm64/boot/dts/qcom/hamoa.dtsi +++ b/arch/arm64/boot/dts/qcom/hamoa.dtsi @@ -269,7 +269,7 @@ 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>; }; }; |