dmaengine: rcar-dmac: Fix too early/late system suspend/resume callbacks
If serial console wake-up is enabled ("echo enabled >
/sys/.../ttySC0/power/wakeup"), and any serial input is received while
the system is suspended, serial port input no longer works after system
resume.
Note that:
1) The system can still be woken up using the serial console,
2) Serial port input keeps working if the system is woken up in some
other way (e.g. Wake-on-LAN or gpio-keys), and no serial input was
received while suspended.
To fix this, replace SET_LATE_SYSTEM_SLEEP_PM_OPS() by
SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(), as the callbacks installed by the
former happen too early resp. late in the suspend resp. resume process.
Reported-by: RVC test team via Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Fixes: 1131b0a4af
("dmaengine: rcar-dmac: Make DMAC reinit during system resume explicit")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
parent
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@ -1686,8 +1686,8 @@ static const struct dev_pm_ops rcar_dmac_pm = {
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* - Wait for the current transfer to complete and stop the device,
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* - Resume transfers, if any.
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*/
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SET_LATE_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
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pm_runtime_force_resume)
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SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
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pm_runtime_force_resume)
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SET_RUNTIME_PM_OPS(rcar_dmac_runtime_suspend, rcar_dmac_runtime_resume,
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NULL)
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};
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