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ARM: dts: msm: Ignore dependencies on children by PM framework

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Change https://lore.kernel.org/all/20230525113034.46880-1-tony@atomide.com
registers serial core controller as a child of msm uart device.

Since child should suspend first, due to the child's auto suspend
delay (SERIAL_PORT_AUTOSUSPEND_DELAY_MS), additional 500msecs
delay is added during msm_geni_serial_runtime_suspend.

Added new dtsi flag 'qcom,suspend-ignore-children', to ignore
dependencies on children by runtime PM framework, this helps to
exit quickly from msm_geni_serial_runtime_suspend and save power.

Change-Id: I4b552c76a8b25fcad92762eba036ffe1797c4e26
Signed-off-by: Prakash Yadachi <quic_pyadachi@quicinc.com>
This commit is contained in:
Prakash Yadachi
2024-09-24 14:17:01 +05:30
parent 9d20226774
commit 79824b3a5b
1 changed files with 1 additions and 0 deletions
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qcom/ravelin-qupv3.dtsi
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@@ -93,6 +93,7 @@
<&qupv3_se2_tx>, <&qupv3_se2_default_rx>;
pinctrl-3 = <&qupv3_se2_default_cts>, <&qupv3_se2_default_rts>,
<&qupv3_se2_default_tx>, <&qupv3_se2_default_rx>;
qcom,suspend-ignore-children;
qcom,wakeup-byte = <0xFD>;
status = "disabled";
};