[PATCH 1/2] ASoC: SOF: Intel: hda: Modify existing helper to disable WAKEEN

[PATCH 1/2] ASoC: SOF: Intel: hda: Modify existing helper to disable WAKEEN

[Kai-Heng Feng]

Modify hda_codec_jack_wake_enable() to also support disable WAKEEN.
This is a preparation for next patch.

No functional change intended.

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
---
 sound/soc/sof/intel/hda-codec.c | 16 +++++++---------
 sound/soc/sof/intel/hda-dsp.c   |  6 ++++--
 sound/soc/sof/intel/hda.h       |  2 +-
 3 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/sound/soc/sof/intel/hda-codec.c b/sound/soc/sof/intel/hda-codec.c
index 6875fa570c2c..bc9ac4abdab5 100644
--- a/sound/soc/sof/intel/hda-codec.c
+++ b/sound/soc/sof/intel/hda-codec.c
@@ -63,16 +63,18 @@ static int hda_codec_load_module(struct hda_codec *codec)
 }
 
 /* enable controller wake up event for all codecs with jack connectors */
-void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev)
+void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev, bool enable)
 {
 	struct hda_bus *hbus = sof_to_hbus(sdev);
 	struct hdac_bus *bus = sof_to_bus(sdev);
 	struct hda_codec *codec;
 	unsigned int mask = 0;
 
-	list_for_each_codec(codec, hbus)
-		if (codec->jacktbl.used)
-			mask |= BIT(codec->core.addr);
+	if (enable) {
+		list_for_each_codec(codec, hbus)
+			if (codec->jacktbl.used)
+				mask |= BIT(codec->core.addr);
+	}
 
 	snd_hdac_chip_updatew(bus, WAKEEN, STATESTS_INT_MASK, mask);
 }
@@ -81,12 +83,8 @@ void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev)
 void hda_codec_jack_check(struct snd_sof_dev *sdev)
 {
 	struct hda_bus *hbus = sof_to_hbus(sdev);
-	struct hdac_bus *bus = sof_to_bus(sdev);
 	struct hda_codec *codec;
 
-	/* disable controller Wake Up event*/
-	snd_hdac_chip_updatew(bus, WAKEEN, STATESTS_INT_MASK, 0);
-
 	list_for_each_codec(codec, hbus)
 		/*
 		 * Wake up all jack-detecting codecs regardless whether an event
@@ -97,7 +95,7 @@ void hda_codec_jack_check(struct snd_sof_dev *sdev)
 					      codec->jackpoll_interval);
 }
 #else
-void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev) {}
+void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev, bool enable) {}
 void hda_codec_jack_check(struct snd_sof_dev *sdev) {}
 #endif /* CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC */
 EXPORT_SYMBOL_NS(hda_codec_jack_wake_enable, SND_SOC_SOF_HDA_AUDIO_CODEC);
diff --git a/sound/soc/sof/intel/hda-dsp.c b/sound/soc/sof/intel/hda-dsp.c
index 2b001151fe37..7d00107cf3b2 100644
--- a/sound/soc/sof/intel/hda-dsp.c
+++ b/sound/soc/sof/intel/hda-dsp.c
@@ -617,7 +617,7 @@ static int hda_suspend(struct snd_sof_dev *sdev, bool runtime_suspend)
 
 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
 	if (runtime_suspend)
-		hda_codec_jack_wake_enable(sdev);
+		hda_codec_jack_wake_enable(sdev, true);
 
 	/* power down all hda link */
 	snd_hdac_ext_bus_link_power_down_all(bus);
@@ -683,8 +683,10 @@ static int hda_resume(struct snd_sof_dev *sdev, bool runtime_resume)
 
 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
 	/* check jack status */
-	if (runtime_resume)
+	if (runtime_resume) {
+		hda_codec_jack_wake_enable(sdev, false);
 		hda_codec_jack_check(sdev);
+	}
 
 	/* turn off the links that were off before suspend */
 	list_for_each_entry(hlink, &bus->hlink_list, list) {
diff --git a/sound/soc/sof/intel/hda.h b/sound/soc/sof/intel/hda.h
index 9ec8ae0fd649..a3b6f3e9121c 100644
--- a/sound/soc/sof/intel/hda.h
+++ b/sound/soc/sof/intel/hda.h
@@ -650,7 +650,7 @@ void sof_hda_bus_init(struct hdac_bus *bus, struct device *dev);
  */
 void hda_codec_probe_bus(struct snd_sof_dev *sdev,
 			 bool hda_codec_use_common_hdmi);
-void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev);
+void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev, bool enable);
 void hda_codec_jack_check(struct snd_sof_dev *sdev);
 
 #endif /* CONFIG_SND_SOC_SOF_HDA */
-- 
2.29.2

[PATCH 2/2] ASoC: SOF: Intel: hda: Avoid checking jack on system suspend

[Kai-Heng Feng]

System takes a very long time to suspend after commit 215a22ed31a1
("ALSA: hda: Refactor codec PM to use direct-complete optimization"):
[   90.065964] PM: suspend entry (s2idle)
[   90.067337] Filesystems sync: 0.001 seconds
[   90.185758] Freezing user space processes ... (elapsed 0.002 seconds) done.
[   90.188713] OOM killer disabled.
[   90.188714] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
[   90.190024] printk: Suspending console(s) (use no_console_suspend to debug)
[   90.904912] intel_pch_thermal 0000:00:12.0: CPU-PCH is cool [49C], continue to suspend
[  321.262505] snd_hda_codec_realtek ehdaudio0D0: Unable to sync register 0x2b8000. -5
[  328.426919] snd_hda_codec_realtek ehdaudio0D0: Unable to sync register 0x2b8000. -5
[  329.490933] ACPI: EC: interrupt blocked

That commit keeps codec suspended during the system suspend. However,
SOF driver's runtime resume, which is for system suspend, calls
hda_codec_jack_check() and schedules jackpoll_work. The jackpoll
work uses snd_hda_power_up_pm() which tries to resume the codec in
system suspend path, hence blocking the suspend process.

So only check jack status if it's not in system PM process.

Fixes: 215a22ed31a1 ("ALSA: hda: Refactor codec PM to use direct-complete optimization")
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
---
 sound/soc/sof/intel/hda-dsp.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

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 */
-- 
2.29.2

Re: [PATCH 1/2] ASoC: SOF: Intel: hda: Modify existing helper to disable WAKEEN

[Takashi Iwai]

On Tue, 29 Dec 2020 14:38:14 +0100,
Kai-Heng Feng wrote:
> 
> Modify hda_codec_jack_wake_enable() to also support disable WAKEEN.
> This is a preparation for next patch.
> 
> No functional change intended.

Maybe it's better to mention that this patch moves the WAKEEN
disablement call out of hda_codec_jack_check() into
hda_codec_jack_wake_enable(), too.


thanks,

Takashi

> 
> Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
> ---
>  sound/soc/sof/intel/hda-codec.c | 16 +++++++---------
>  sound/soc/sof/intel/hda-dsp.c   |  6 ++++--
>  sound/soc/sof/intel/hda.h       |  2 +-
>  3 files changed, 12 insertions(+), 12 deletions(-)
> 
> diff --git a/sound/soc/sof/intel/hda-codec.c b/sound/soc/sof/intel/hda-codec.c
> index 6875fa570c2c..bc9ac4abdab5 100644
> --- a/sound/soc/sof/intel/hda-codec.c
> +++ b/sound/soc/sof/intel/hda-codec.c
> @@ -63,16 +63,18 @@ static int hda_codec_load_module(struct hda_codec *codec)
>  }
>  
>  /* enable controller wake up event for all codecs with jack connectors */
> -void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev)
> +void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev, bool enable)
>  {
>  	struct hda_bus *hbus = sof_to_hbus(sdev);
>  	struct hdac_bus *bus = sof_to_bus(sdev);
>  	struct hda_codec *codec;
>  	unsigned int mask = 0;
>  
> -	list_for_each_codec(codec, hbus)
> -		if (codec->jacktbl.used)
> -			mask |= BIT(codec->core.addr);
> +	if (enable) {
> +		list_for_each_codec(codec, hbus)
> +			if (codec->jacktbl.used)
> +				mask |= BIT(codec->core.addr);
> +	}
>  
>  	snd_hdac_chip_updatew(bus, WAKEEN, STATESTS_INT_MASK, mask);
>  }
> @@ -81,12 +83,8 @@ void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev)
>  void hda_codec_jack_check(struct snd_sof_dev *sdev)
>  {
>  	struct hda_bus *hbus = sof_to_hbus(sdev);
> -	struct hdac_bus *bus = sof_to_bus(sdev);
>  	struct hda_codec *codec;
>  
> -	/* disable controller Wake Up event*/
> -	snd_hdac_chip_updatew(bus, WAKEEN, STATESTS_INT_MASK, 0);
> -
>  	list_for_each_codec(codec, hbus)
>  		/*
>  		 * Wake up all jack-detecting codecs regardless whether an event
> @@ -97,7 +95,7 @@ void hda_codec_jack_check(struct snd_sof_dev *sdev)
>  					      codec->jackpoll_interval);
>  }
>  #else
> -void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev) {}
> +void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev, bool enable) {}
>  void hda_codec_jack_check(struct snd_sof_dev *sdev) {}
>  #endif /* CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC */
>  EXPORT_SYMBOL_NS(hda_codec_jack_wake_enable, SND_SOC_SOF_HDA_AUDIO_CODEC);
> diff --git a/sound/soc/sof/intel/hda-dsp.c b/sound/soc/sof/intel/hda-dsp.c
> index 2b001151fe37..7d00107cf3b2 100644
> --- a/sound/soc/sof/intel/hda-dsp.c
> +++ b/sound/soc/sof/intel/hda-dsp.c
> @@ -617,7 +617,7 @@ static int hda_suspend(struct snd_sof_dev *sdev, bool runtime_suspend)
>  
>  #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
>  	if (runtime_suspend)
> -		hda_codec_jack_wake_enable(sdev);
> +		hda_codec_jack_wake_enable(sdev, true);
>  
>  	/* power down all hda link */
>  	snd_hdac_ext_bus_link_power_down_all(bus);
> @@ -683,8 +683,10 @@ static int hda_resume(struct snd_sof_dev *sdev, bool runtime_resume)
>  
>  #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
>  	/* check jack status */
> -	if (runtime_resume)
> +	if (runtime_resume) {
> +		hda_codec_jack_wake_enable(sdev, false);
>  		hda_codec_jack_check(sdev);
> +	}
>  
>  	/* turn off the links that were off before suspend */
>  	list_for_each_entry(hlink, &bus->hlink_list, list) {
> diff --git a/sound/soc/sof/intel/hda.h b/sound/soc/sof/intel/hda.h
> index 9ec8ae0fd649..a3b6f3e9121c 100644
> --- a/sound/soc/sof/intel/hda.h
> +++ b/sound/soc/sof/intel/hda.h
> @@ -650,7 +650,7 @@ void sof_hda_bus_init(struct hdac_bus *bus, struct device *dev);
>   */
>  void hda_codec_probe_bus(struct snd_sof_dev *sdev,
>  			 bool hda_codec_use_common_hdmi);
> -void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev);
> +void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev, bool enable);
>  void hda_codec_jack_check(struct snd_sof_dev *sdev);
>  
>  #endif /* CONFIG_SND_SOC_SOF_HDA */
> -- 
> 2.29.2
> 

Re: [PATCH 2/2] ASoC: SOF: Intel: hda: Avoid checking jack on system suspend

[Takashi Iwai]

On Tue, 29 Dec 2020 14:38:15 +0100,
Kai-Heng Feng wrote:
> 
> System takes a very long time to suspend after commit 215a22ed31a1
> ("ALSA: hda: Refactor codec PM to use direct-complete optimization"):
> [   90.065964] PM: suspend entry (s2idle)
> [   90.067337] Filesystems sync: 0.001 seconds
> [   90.185758] Freezing user space processes ... (elapsed 0.002 seconds) done.
> [   90.188713] OOM killer disabled.
> [   90.188714] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
> [   90.190024] printk: Suspending console(s) (use no_console_suspend to debug)
> [   90.904912] intel_pch_thermal 0000:00:12.0: CPU-PCH is cool [49C], continue to suspend
> [  321.262505] snd_hda_codec_realtek ehdaudio0D0: Unable to sync register 0x2b8000. -5
> [  328.426919] snd_hda_codec_realtek ehdaudio0D0: Unable to sync register 0x2b8000. -5
> [  329.490933] ACPI: EC: interrupt blocked
> 
> That commit keeps codec suspended during the system suspend. However,
> SOF driver's runtime resume, which is for system suspend, calls
> hda_codec_jack_check() and schedules jackpoll_work. The jackpoll
> work uses snd_hda_power_up_pm() which tries to resume the codec in
> system suspend path, hence blocking the suspend process.
> 
> So only check jack status if it's not in system PM process.

After your previous patch set, the legacy HDA does queue the
jackpoll_work only if jackpoll_interval is set.  I suppose rather the
same rule would be applied?


thanks,

Takashi

> 
> Fixes: 215a22ed31a1 ("ALSA: hda: Refactor codec PM to use direct-complete optimization")
> Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
> ---
>  sound/soc/sof/intel/hda-dsp.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> 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 */
> -- 
> 2.29.2
> 

Re: [PATCH 2/2] ASoC: SOF: Intel: hda: Avoid checking jack on system suspend

[Kai-Heng Feng]

On Thu, Dec 31, 2020 at 6:55 PM Takashi Iwai <tiwai@suse.de> wrote:
>
> On Tue, 29 Dec 2020 14:38:15 +0100,
> Kai-Heng Feng wrote:
> >
> > System takes a very long time to suspend after commit 215a22ed31a1
> > ("ALSA: hda: Refactor codec PM to use direct-complete optimization"):
> > [   90.065964] PM: suspend entry (s2idle)
> > [   90.067337] Filesystems sync: 0.001 seconds
> > [   90.185758] Freezing user space processes ... (elapsed 0.002 seconds) done.
> > [   90.188713] OOM killer disabled.
> > [   90.188714] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
> > [   90.190024] printk: Suspending console(s) (use no_console_suspend to debug)
> > [   90.904912] intel_pch_thermal 0000:00:12.0: CPU-PCH is cool [49C], continue to suspend
> > [  321.262505] snd_hda_codec_realtek ehdaudio0D0: Unable to sync register 0x2b8000. -5
> > [  328.426919] snd_hda_codec_realtek ehdaudio0D0: Unable to sync register 0x2b8000. -5
> > [  329.490933] ACPI: EC: interrupt blocked
> >
> > That commit keeps codec suspended during the system suspend. However,
> > SOF driver's runtime resume, which is for system suspend, calls
> > hda_codec_jack_check() and schedules jackpoll_work. The jackpoll
> > work uses snd_hda_power_up_pm() which tries to resume the codec in
> > system suspend path, hence blocking the suspend process.
> >
> > So only check jack status if it's not in system PM process.
>
> After your previous patch set, the legacy HDA does queue the
> jackpoll_work only if jackpoll_interval is set.  I suppose rather the
> same rule would be applied?

It's queued in hda_codec_pm_complete(), which happens at the end of PM process.
This one is queued in the middle of PM suspend, so it's not the same here.

Kai-Heng

>
>
> thanks,
>
> Takashi
>
> >
> > Fixes: 215a22ed31a1 ("ALSA: hda: Refactor codec PM to use direct-complete optimization")
> > Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
> > ---
> >  sound/soc/sof/intel/hda-dsp.c | 3 ++-
> >  1 file changed, 2 insertions(+), 1 deletion(-)
> >
> > 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 */
> > --
> > 2.29.2
> >

Re: [PATCH 1/2] ASoC: SOF: Intel: hda: Modify existing helper to disable WAKEEN

[Kai-Heng Feng]

On Thu, Dec 31, 2020 at 6:52 PM Takashi Iwai <tiwai@suse.de> wrote:
>
> On Tue, 29 Dec 2020 14:38:14 +0100,
> Kai-Heng Feng wrote:
> >
> > Modify hda_codec_jack_wake_enable() to also support disable WAKEEN.
> > This is a preparation for next patch.
> >
> > No functional change intended.
>
> Maybe it's better to mention that this patch moves the WAKEEN
> disablement call out of hda_codec_jack_check() into
> hda_codec_jack_wake_enable(), too.

Ok, will update the commit log in v2.

Kai-Heng

>
>
> thanks,
>
> Takashi
>
> >
> > Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
> > ---
> >  sound/soc/sof/intel/hda-codec.c | 16 +++++++---------
> >  sound/soc/sof/intel/hda-dsp.c   |  6 ++++--
> >  sound/soc/sof/intel/hda.h       |  2 +-
> >  3 files changed, 12 insertions(+), 12 deletions(-)
> >
> > diff --git a/sound/soc/sof/intel/hda-codec.c b/sound/soc/sof/intel/hda-codec.c
> > index 6875fa570c2c..bc9ac4abdab5 100644
> > --- a/sound/soc/sof/intel/hda-codec.c
> > +++ b/sound/soc/sof/intel/hda-codec.c
> > @@ -63,16 +63,18 @@ static int hda_codec_load_module(struct hda_codec *codec)
> >  }
> >
> >  /* enable controller wake up event for all codecs with jack connectors */
> > -void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev)
> > +void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev, bool enable)
> >  {
> >       struct hda_bus *hbus = sof_to_hbus(sdev);
> >       struct hdac_bus *bus = sof_to_bus(sdev);
> >       struct hda_codec *codec;
> >       unsigned int mask = 0;
> >
> > -     list_for_each_codec(codec, hbus)
> > -             if (codec->jacktbl.used)
> > -                     mask |= BIT(codec->core.addr);
> > +     if (enable) {
> > +             list_for_each_codec(codec, hbus)
> > +                     if (codec->jacktbl.used)
> > +                             mask |= BIT(codec->core.addr);
> > +     }
> >
> >       snd_hdac_chip_updatew(bus, WAKEEN, STATESTS_INT_MASK, mask);
> >  }
> > @@ -81,12 +83,8 @@ void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev)
> >  void hda_codec_jack_check(struct snd_sof_dev *sdev)
> >  {
> >       struct hda_bus *hbus = sof_to_hbus(sdev);
> > -     struct hdac_bus *bus = sof_to_bus(sdev);
> >       struct hda_codec *codec;
> >
> > -     /* disable controller Wake Up event*/
> > -     snd_hdac_chip_updatew(bus, WAKEEN, STATESTS_INT_MASK, 0);
> > -
> >       list_for_each_codec(codec, hbus)
> >               /*
> >                * Wake up all jack-detecting codecs regardless whether an event
> > @@ -97,7 +95,7 @@ void hda_codec_jack_check(struct snd_sof_dev *sdev)
> >                                             codec->jackpoll_interval);
> >  }
> >  #else
> > -void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev) {}
> > +void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev, bool enable) {}
> >  void hda_codec_jack_check(struct snd_sof_dev *sdev) {}
> >  #endif /* CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC */
> >  EXPORT_SYMBOL_NS(hda_codec_jack_wake_enable, SND_SOC_SOF_HDA_AUDIO_CODEC);
> > diff --git a/sound/soc/sof/intel/hda-dsp.c b/sound/soc/sof/intel/hda-dsp.c
> > index 2b001151fe37..7d00107cf3b2 100644
> > --- a/sound/soc/sof/intel/hda-dsp.c
> > +++ b/sound/soc/sof/intel/hda-dsp.c
> > @@ -617,7 +617,7 @@ static int hda_suspend(struct snd_sof_dev *sdev, bool runtime_suspend)
> >
> >  #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
> >       if (runtime_suspend)
> > -             hda_codec_jack_wake_enable(sdev);
> > +             hda_codec_jack_wake_enable(sdev, true);
> >
> >       /* power down all hda link */
> >       snd_hdac_ext_bus_link_power_down_all(bus);
> > @@ -683,8 +683,10 @@ static int hda_resume(struct snd_sof_dev *sdev, bool runtime_resume)
> >
> >  #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
> >       /* check jack status */
> > -     if (runtime_resume)
> > +     if (runtime_resume) {
> > +             hda_codec_jack_wake_enable(sdev, false);
> >               hda_codec_jack_check(sdev);
> > +     }
> >
> >       /* turn off the links that were off before suspend */
> >       list_for_each_entry(hlink, &bus->hlink_list, list) {
> > diff --git a/sound/soc/sof/intel/hda.h b/sound/soc/sof/intel/hda.h
> > index 9ec8ae0fd649..a3b6f3e9121c 100644
> > --- a/sound/soc/sof/intel/hda.h
> > +++ b/sound/soc/sof/intel/hda.h
> > @@ -650,7 +650,7 @@ void sof_hda_bus_init(struct hdac_bus *bus, struct device *dev);
> >   */
> >  void hda_codec_probe_bus(struct snd_sof_dev *sdev,
> >                        bool hda_codec_use_common_hdmi);
> > -void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev);
> > +void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev, bool enable);
> >  void hda_codec_jack_check(struct snd_sof_dev *sdev);
> >
> >  #endif /* CONFIG_SND_SOC_SOF_HDA */
> > --
> > 2.29.2
> >

Re: [PATCH 2/2] ASoC: SOF: Intel: hda: Avoid checking jack on system suspend

[Takashi Iwai]

On Thu, 31 Dec 2020 19:06:43 +0100,
Kai-Heng Feng wrote:
> 
> On Thu, Dec 31, 2020 at 6:55 PM Takashi Iwai <tiwai@suse.de> wrote:
> >
> > On Tue, 29 Dec 2020 14:38:15 +0100,
> > Kai-Heng Feng wrote:
> > >
> > > System takes a very long time to suspend after commit 215a22ed31a1
> > > ("ALSA: hda: Refactor codec PM to use direct-complete optimization"):
> > > [   90.065964] PM: suspend entry (s2idle)
> > > [   90.067337] Filesystems sync: 0.001 seconds
> > > [   90.185758] Freezing user space processes ... (elapsed 0.002 seconds) done.
> > > [   90.188713] OOM killer disabled.
> > > [   90.188714] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
> > > [   90.190024] printk: Suspending console(s) (use no_console_suspend to debug)
> > > [   90.904912] intel_pch_thermal 0000:00:12.0: CPU-PCH is cool [49C], continue to suspend
> > > [  321.262505] snd_hda_codec_realtek ehdaudio0D0: Unable to sync register 0x2b8000. -5
> > > [  328.426919] snd_hda_codec_realtek ehdaudio0D0: Unable to sync register 0x2b8000. -5
> > > [  329.490933] ACPI: EC: interrupt blocked
> > >
> > > That commit keeps codec suspended during the system suspend. However,
> > > SOF driver's runtime resume, which is for system suspend, calls
> > > hda_codec_jack_check() and schedules jackpoll_work. The jackpoll
> > > work uses snd_hda_power_up_pm() which tries to resume the codec in
> > > system suspend path, hence blocking the suspend process.
> > >
> > > So only check jack status if it's not in system PM process.
> >
> > After your previous patch set, the legacy HDA does queue the
> > jackpoll_work only if jackpoll_interval is set.  I suppose rather the
> > same rule would be applied?
> 
> It's queued in hda_codec_pm_complete(), which happens at the end of PM process.
> This one is queued in the middle of PM suspend, so it's not the same here.

But why do we need the jack status check explicitly there if
hda_codec_pm_complete() already does it (via re-queuing the resume)?


thanks,

Takashi

> 
> Kai-Heng
> 
> >
> >
> > thanks,
> >
> > Takashi
> >
> > >
> > > Fixes: 215a22ed31a1 ("ALSA: hda: Refactor codec PM to use direct-complete optimization")
> > > Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
> > > ---
> > >  sound/soc/sof/intel/hda-dsp.c | 3 ++-
> > >  1 file changed, 2 insertions(+), 1 deletion(-)
> > >
> > > 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 */
> > > --
> > > 2.29.2
> > >
> 

Re: [PATCH 2/2] ASoC: SOF: Intel: hda: Avoid checking jack on system suspend

[Kai-Heng Feng]

On Fri, Jan 1, 2021 at 4:07 PM Takashi Iwai <tiwai@suse.de> wrote:
>
> On Thu, 31 Dec 2020 19:06:43 +0100,
> Kai-Heng Feng wrote:
> >
> > On Thu, Dec 31, 2020 at 6:55 PM Takashi Iwai <tiwai@suse.de> wrote:
> > >
> > > On Tue, 29 Dec 2020 14:38:15 +0100,
> > > Kai-Heng Feng wrote:
> > > >
> > > > System takes a very long time to suspend after commit 215a22ed31a1
> > > > ("ALSA: hda: Refactor codec PM to use direct-complete optimization"):
> > > > [   90.065964] PM: suspend entry (s2idle)
> > > > [   90.067337] Filesystems sync: 0.001 seconds
> > > > [   90.185758] Freezing user space processes ... (elapsed 0.002 seconds) done.
> > > > [   90.188713] OOM killer disabled.
> > > > [   90.188714] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
> > > > [   90.190024] printk: Suspending console(s) (use no_console_suspend to debug)
> > > > [   90.904912] intel_pch_thermal 0000:00:12.0: CPU-PCH is cool [49C], continue to suspend
> > > > [  321.262505] snd_hda_codec_realtek ehdaudio0D0: Unable to sync register 0x2b8000. -5
> > > > [  328.426919] snd_hda_codec_realtek ehdaudio0D0: Unable to sync register 0x2b8000. -5
> > > > [  329.490933] ACPI: EC: interrupt blocked
> > > >
> > > > That commit keeps codec suspended during the system suspend. However,
> > > > SOF driver's runtime resume, which is for system suspend, calls
> > > > hda_codec_jack_check() and schedules jackpoll_work. The jackpoll
> > > > work uses snd_hda_power_up_pm() which tries to resume the codec in
> > > > system suspend path, hence blocking the suspend process.
> > > >
> > > > So only check jack status if it's not in system PM process.
> > >
> > > After your previous patch set, the legacy HDA does queue the
> > > jackpoll_work only if jackpoll_interval is set.  I suppose rather the
> > > same rule would be applied?
> >
> > It's queued in hda_codec_pm_complete(), which happens at the end of PM process.
> > This one is queued in the middle of PM suspend, so it's not the same here.
>
> But why do we need the jack status check explicitly there if
> hda_codec_pm_complete() already does it (via re-queuing the resume)?

Because hda_resume() is called for both system and runtime resume, but
hda_codec_pm_complete() only gets called for system resume. So we
still need to cover the runtime resume case.

However, we can use pm_request_resume() to wakeup the codec and do the
jack detection, instead of queueing jackpoll_work directly. I'll do
the change in v2.

Kai-Heng

>
> thanks,
>
> Takashi
>
> >
> > Kai-Heng
> >
> > >
> > >
> > > thanks,
> > >
> > > Takashi
> > >
> > > >
> > > > Fixes: 215a22ed31a1 ("ALSA: hda: Refactor codec PM to use direct-complete optimization")
> > > > Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
> > > > ---
> > > >  sound/soc/sof/intel/hda-dsp.c | 3 ++-
> > > >  1 file changed, 2 insertions(+), 1 deletion(-)
> > > >
> > > > 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 */
> > > > --
> > > > 2.29.2
> > > >
> >