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 optional dtsi property 'qcom,suspend-ignore-children'
which when set ignores dependencies on children by PM framework, this
helps to exit quickly from msm_geni_serial_runtime_suspend and save power.
Change-Id: I36b239cf19293ee7b1ebecf32cdd0ad0749dbca1
Signed-off-by: Visweswara Tanuku <quic_vtanuku@quicinc.com>
