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| author | Takashi Iwai <tiwai@suse.de> | 2018-06-27 09:03:51 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2018-06-28 00:02:59 +0200 |
| commit | feb20faec73ba0b30f949d54c4153cf0ad3807c8 (patch) | |
| tree | a08d7c490354e90352bbec2fe863132e9fe002b2 /sound/pci/hda/hda_codec.c | |
| parent | ALSA: intel_hdmi: Use strlcpy() instead of strncpy() (diff) | |
| download | linux-feb20faec73ba0b30f949d54c4153cf0ad3807c8.tar.xz linux-feb20faec73ba0b30f949d54c4153cf0ad3807c8.zip | |
ALSA: hda - Move in_pm accessors to HDA core
The in_pm atomic in hdac_device is an important field used as a flag
as well as a refcount for PM. The existing snd_hdac_power_up/down
helpers already refer to it in the HD-audio core code, while the code
to actually setting the value (atomic_inc() / _dec()) is open-coded in
HDA legacy side, which is hard to find.
This patch adds the helper functions to set/reset the in_pm counter to
HDA core and use them in HDA legacy side, for making it clearer who /
where the PM is managed.
There is no functional changes, just code refactoring.
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda/hda_codec.c')
| -rw-r--r-- | sound/pci/hda/hda_codec.c | 21 |
1 files changed, 6 insertions, 15 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index f42af88bd2de..decd46b51087 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -37,15 +37,8 @@ #include "hda_jack.h" #include <sound/hda_hwdep.h> -#ifdef CONFIG_PM -#define codec_in_pm(codec) atomic_read(&(codec)->core.in_pm) -#define hda_codec_is_power_on(codec) \ - (!pm_runtime_suspended(hda_codec_dev(codec))) -#else -#define codec_in_pm(codec) 0 -#define hda_codec_is_power_on(codec) 1 -#endif - +#define codec_in_pm(codec) snd_hdac_is_in_pm(&codec->core) +#define hda_codec_is_power_on(codec) snd_hdac_is_power_on(&codec->core) #define codec_has_epss(codec) \ ((codec)->core.power_caps & AC_PWRST_EPSS) #define codec_has_clkstop(codec) \ @@ -2846,14 +2839,13 @@ static unsigned int hda_call_codec_suspend(struct hda_codec *codec) { unsigned int state; - atomic_inc(&codec->core.in_pm); - + snd_hdac_enter_pm(&codec->core); if (codec->patch_ops.suspend) codec->patch_ops.suspend(codec); hda_cleanup_all_streams(codec); state = hda_set_power_state(codec, AC_PWRST_D3); update_power_acct(codec, true); - atomic_dec(&codec->core.in_pm); + snd_hdac_leave_pm(&codec->core); return state; } @@ -2862,8 +2854,7 @@ static unsigned int hda_call_codec_suspend(struct hda_codec *codec) */ static void hda_call_codec_resume(struct hda_codec *codec) { - atomic_inc(&codec->core.in_pm); - + snd_hdac_enter_pm(&codec->core); if (codec->core.regmap) regcache_mark_dirty(codec->core.regmap); @@ -2886,7 +2877,7 @@ static void hda_call_codec_resume(struct hda_codec *codec) hda_jackpoll_work(&codec->jackpoll_work.work); else snd_hda_jack_report_sync(codec); - atomic_dec(&codec->core.in_pm); + snd_hdac_leave_pm(&codec->core); } static int hda_codec_runtime_suspend(struct device *dev) |