powerd_suspend doesn't power back on the modem on Blaze in case of suspend failure |
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Issue descriptioncrosreview.com/324106 modified powerd_suspend to power off the modem on Blaze before the system goes into suspend and then power the modem back on after the system successfully resumes from suspend. However, when powerd_suspend fails to update /sys/power/state, it doesn't power the modem back on, so the modem will stay powered off until the system is rebooted. Regardless of whether powerd_suspend successfully updates /sys/power/state, it should power the modem back on if it did power the modem off.
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Jan 19 2017
The following revision refers to this bug: https://chromium.googlesource.com/chromiumos/platform2/+/78a03311595600e9c25a103a949c39b52f5077f5 commit 78a03311595600e9c25a103a949c39b52f5077f5 Author: Ben Chan <benchan@chromium.org> Date: Wed Jan 18 02:03:03 2017 power: power on modem on Blaze even in case of suspend failure CL:324106 modified powerd_suspend to power off the modem on Blaze before the system goes into suspend and then power the modem back on after the system successfully resumes from suspend. However, when powerd_suspend fails to update /sys/power/state, it doesn't power the modem back on, so the modem will stay powered off until the system is rebooted. This CL fixes this issue. BUG= chromium:682084 TEST=Verified that the ME936 modem on Blaze is powered back on even when powerd_suspend fails to update /sys/power/state (by manually injected an error in powerd_suspend). Change-Id: Iea596358c0032a3590c49ad12d75e3c16fa74fbe Reviewed-on: https://chromium-review.googlesource.com/429490 Commit-Ready: Ben Chan <benchan@chromium.org> Tested-by: Ben Chan <benchan@chromium.org> Reviewed-by: Todd Broch <tbroch@chromium.org> [modify] https://crrev.com/78a03311595600e9c25a103a949c39b52f5077f5/power_manager/powerd/powerd_suspend
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Jan 20 2017
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Apr 17 2017
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May 30 2017
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Aug 1 2017
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Oct 14 2017
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Comment 1 by benchan@chromium.org
, Jan 18 2017