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authorHui Wang <hui.wang@canonical.com>2021-06-02 22:54:24 +0800
committerTakashi Iwai <tiwai@suse.de>2021-06-03 09:40:28 +0200
commitb8b90c17602689eeaa5b219d104bbc215d1225cc (patch)
treee17a2ae3a2a3de126e3e4012d3ace8049787a04e /mm
parent9c1fe96bded935369f8340c2ac2e9e189f697d5d (diff)
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ALSA: hda: update the power_state during the direct-complete
The patch_realtek.c needs to check if the power_state.event equals PM_EVENT_SUSPEND, after using the direct-complete, the suspend() and resume() will be skipped if the codec is already rt_suspended, in this case, the patch_realtek.c will always get PM_EVENT_ON even the system is really resumed from S3. We could set power_state to PMSG_SUSPEND in the prepare(), if other PM functions are called before complete(), those functions will override power_state; if no other PM functions are called before complete(), we could know the suspend() and resume() are skipped since only S3 pm functions could be skipped by direct-complete, in this case set power_state to PMSG_RESUME in the complete(). This could guarantee the first time of calling hda_codec_runtime_resume() after complete() has the correct power_state. Fixes: 215a22ed31a1 ("ALSA: hda: Refactor codec PM to use direct-complete optimization") Cc: <stable@vger.kernel.org> Signed-off-by: Hui Wang <hui.wang@canonical.com> Link: https://lore.kernel.org/r/20210602145424.3132-1-hui.wang@canonical.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'mm')
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