From 79824b3a5ba0ebd3fce6a8401629b17b1c1bd9e5 Mon Sep 17 00:00:00 2001 From: Prakash Yadachi Date: Tue, 24 Sep 2024 14:17:01 +0530 Subject: [PATCH] ARM: dts: msm: Ignore dependencies on children by PM framework 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 --- qcom/ravelin-qupv3.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/qcom/ravelin-qupv3.dtsi b/qcom/ravelin-qupv3.dtsi index cd4af450..eeb1ec49 100644 --- a/qcom/ravelin-qupv3.dtsi +++ b/qcom/ravelin-qupv3.dtsi @@ -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"; };