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Verified Commit c1b0f518 authored by Claudiu Beznea's avatar Claudiu Beznea Committed by Mark Brown
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ASoC: renesas: rz-ssi: Use NOIRQ_SYSTEM_SLEEP_PM_OPS()



In the latest kernel versions system crashes were noticed occasionally
during suspend/resume. This occurs because the RZ SSI suspend trigger
(called from snd_soc_suspend()) is executed after rz_ssi_pm_ops->suspend()
and it accesses IP registers. After the rz_ssi_pm_ops->suspend() is
executed the IP clocks are disabled and its reset line is asserted.

Since snd_soc_suspend() is invoked through snd_soc_pm_ops->suspend(),
snd_soc_pm_ops is associated with soc_driver (defined in
sound/soc/soc-core.c), and there is no parent-child relationship between
soc_driver and rz_ssi_driver the power management subsystem does not
enforce a specific suspend/resume order between the RZ SSI platform driver
and soc_driver.

To ensure that the suspend/resume function of rz-ssi is executed after
snd_soc_suspend(), use NOIRQ_SYSTEM_SLEEP_PM_OPS().

Fixes: 1fc778f7 ("ASoC: renesas: rz-ssi: Add suspend to RAM support")
Cc: stable@vger.kernel.org
Signed-off-by: default avatarClaudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Link: https://patch.msgid.link/20250410141525.4126502-1-claudiu.beznea.uj@bp.renesas.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent da6d7db8
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