| Message ID | 20210112130704.1201406-4-kai.heng.feng@canonical.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v3,1/4] ALSA: hda/realtek: Power up codec when setting LED via COEF and GPIO | expand |
On Tue, Jan 12, 2021 at 09:07:02PM +0800, Kai-Heng Feng wrote: > Fixes: 215a22ed31a1 ("ALSA: hda: Refactor codec PM to use direct-complete optimization") > --- > v3: You've not provided a Signed-off-by for this so I can't do anything with it, please see Documentation/process/submitting-patches.rst for details on what this is and why it's important.
diff --git a/sound/soc/sof/intel/hda-dsp.c b/sound/soc/sof/intel/hda-dsp.c index 7d00107cf3b2..1c5e05b88a90 100644 --- a/sound/soc/sof/intel/hda-dsp.c +++ b/sound/soc/sof/intel/hda-dsp.c @@ -685,7 +685,8 @@ static int hda_resume(struct snd_sof_dev *sdev, bool runtime_resume) /* check jack status */ if (runtime_resume) { hda_codec_jack_wake_enable(sdev, false); - hda_codec_jack_check(sdev); + if (sdev->system_suspend_target == SOF_SUSPEND_NONE) + hda_codec_jack_check(sdev); } /* turn off the links that were off before suspend */
When runtime resume is for system suspend, hda_codec_jack_check() schedules jackpoll_work which uses snd_hdac_is_power_on() to check whether codec is suspended. If we were to use snd_hdac_is_power_on() in system PM path, pm_runtime_status_suspended() should be used instead of pm_runtime_suspended(), otherwise pm_runtime_{enable,disable}() changes the result of snd_hdac_is_power_on(). Because devices suspend in reverse order (i.e. child first), it doesn't make much sense to resume already suspended codec from audio controller. So instead of using pm_runtime_status_suspended(), the better approach here is to make sure jackpoll isn't used in system PM process. Fixes: 215a22ed31a1 ("ALSA: hda: Refactor codec PM to use direct-complete optimization") --- v3: Clarify the root cause and why it's needed. v2: No change. sound/soc/sof/intel/hda-dsp.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)