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ALSA: hda: beep: Simplify keep-power-at-enable behavior 

The recent fix for IDT codecs to keep the power up while the beep is
enabled can be better integrated into the beep helper code.
This patch cleans up the code with refactoring.

Fixes: 414d38ba87 ("ALSA: hda/sigmatel: Keep power up while beep is enabled")
Link: https://lore.kernel.org/r/20220906092306.26183-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2022-09-06 11:23:06 +02:00
parent 6392dcd1d0
commit 4c8d695cb9
3 changed files with 16 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
sound/pci/hda/hda_beep.c
View File

@ -118,6 +118,12 @@ static int snd_hda_beep_event(struct input_dev *dev, unsigned int type,
return 0;
}
static void turn_on_beep(struct hda_beep *beep)
{
if (beep->keep_power_at_enable)
snd_hda_power_up_pm(beep->codec);
}
static void turn_off_beep(struct hda_beep *beep)
{
cancel_work_sync(&beep->beep_work);
@ -125,6 +131,8 @@ static void turn_off_beep(struct hda_beep *beep)
/* turn off beep */
generate_tone(beep, 0);
}
if (beep->keep_power_at_enable)
snd_hda_power_down_pm(beep->codec);
}
/**
@ -140,7 +148,9 @@ int snd_hda_enable_beep_device(struct hda_codec *codec, int enable)
enable = !!enable;
if (beep->enabled != enable) {
beep->enabled = enable;
if (!enable)
if (enable)
turn_on_beep(beep);
else
turn_off_beep(beep);
return 1;
}
@ -167,6 +177,7 @@ static int beep_dev_disconnect(struct snd_device *device)
input_unregister_device(beep->dev);
else
input_free_device(beep->dev);
if (beep->enabled)
turn_off_beep(beep);
return 0;
}

1
sound/pci/hda/hda_beep.h
View File

@ -25,6 +25,7 @@ struct hda_beep {
unsigned int enabled:1;
unsigned int linear_tone:1; /* linear tone for IDT/STAC codec */
unsigned int playing:1;
unsigned int keep_power_at_enable:1; /* set by driver */
struct work_struct beep_work; /* scheduled task for beep event */
struct mutex mutex;
void (*power_hook)(struct hda_beep *beep, bool on);

25
sound/pci/hda/patch_sigmatel.c
View File

@ -4311,6 +4311,8 @@ static int stac_parse_auto_config(struct hda_codec *codec)
if (codec->beep) {
/* IDT/STAC codecs have linear beep tone parameter */
codec->beep->linear_tone = spec->linear_tone_beep;
/* keep power up while beep is enabled */
codec->beep->keep_power_at_enable = 1;
/* if no beep switch is available, make its own one */
caps = query_amp_caps(codec, nid, HDA_OUTPUT);
if (!(caps & AC_AMPCAP_MUTE)) {
@ -4444,28 +4446,6 @@ static int stac_suspend(struct hda_codec *codec)
return 0;
}
static int stac_check_power_status(struct hda_codec *codec, hda_nid_t nid)
{
#ifdef CONFIG_SND_HDA_INPUT_BEEP
struct sigmatel_spec *spec = codec->spec;
#endif
int ret = snd_hda_gen_check_power_status(codec, nid);
#ifdef CONFIG_SND_HDA_INPUT_BEEP
if (nid == spec->gen.beep_nid && codec->beep) {
if (codec->beep->enabled != spec->beep_power_on) {
spec->beep_power_on = codec->beep->enabled;
if (spec->beep_power_on)
snd_hda_power_up_pm(codec);
else
snd_hda_power_down_pm(codec);
}
ret |= spec->beep_power_on;
}
#endif
return ret;
}
#else
#define stac_suspend NULL
#endif /* CONFIG_PM */
@ -4478,7 +4458,6 @@ static const struct hda_codec_ops stac_patch_ops = {
.unsol_event = snd_hda_jack_unsol_event,
#ifdef CONFIG_PM
.suspend = stac_suspend,
.check_power_status = stac_check_power_status,
#endif
};