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authorTakashi Iwai <tiwai@suse.de>2019-01-29 14:03:33 +0100
committerTakashi Iwai <tiwai@suse.de>2019-01-29 18:25:48 +0100
commit98081ca62cbac31fb0f7efaf90b2e7384ce22257 (patch)
treecdbd6d9fc86dc62037e795b8eb7c7d286398aeee /sound/pci
parent693abe11aa6b27aed6eb8222162f8fb986325cef (diff)
downloadlinux-stericsson-98081ca62cbac31fb0f7efaf90b2e7384ce22257.tar.gz
ALSA: hda - Record the current power state before suspend/resume calls
Currently we deal with single codec and suspend codec callbacks for all S3, S4 and runtime PM handling. But it turned out that we want distinguish the call patterns sometimes, e.g. for applying some init sequence only at probing and restoring from hibernate. This patch slightly modifies the common PM callbacks for HD-audio codec and stores the currently processed PM event in power_state of the codec's device.power field, which is currently unused. The codec callback can take a look at this event value and judges which purpose it's being called. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci')
-rw-r--r--sound/pci/hda/hda_codec.c43
1 files changed, 41 insertions, 2 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 9f8d59e7e89f..dbc9eaa81358 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -2917,6 +2917,7 @@ static void hda_call_codec_resume(struct hda_codec *codec)
hda_jackpoll_work(&codec->jackpoll_work.work);
else
snd_hda_jack_report_sync(codec);
+ codec->core.dev.power.power_state = PMSG_ON;
snd_hdac_leave_pm(&codec->core);
}
@@ -2950,10 +2951,48 @@ static int hda_codec_runtime_resume(struct device *dev)
}
#endif /* CONFIG_PM */
+#ifdef CONFIG_PM_SLEEP
+static int hda_codec_pm_suspend(struct device *dev)
+{
+ dev->power.power_state = PMSG_SUSPEND;
+ return pm_runtime_force_suspend(dev);
+}
+
+static int hda_codec_pm_resume(struct device *dev)
+{
+ dev->power.power_state = PMSG_RESUME;
+ return pm_runtime_force_resume(dev);
+}
+
+static int hda_codec_pm_freeze(struct device *dev)
+{
+ dev->power.power_state = PMSG_FREEZE;
+ return pm_runtime_force_suspend(dev);
+}
+
+static int hda_codec_pm_thaw(struct device *dev)
+{
+ dev->power.power_state = PMSG_THAW;
+ return pm_runtime_force_resume(dev);
+}
+
+static int hda_codec_pm_restore(struct device *dev)
+{
+ dev->power.power_state = PMSG_RESTORE;
+ return pm_runtime_force_resume(dev);
+}
+#endif /* CONFIG_PM_SLEEP */
+
/* referred in hda_bind.c */
const struct dev_pm_ops hda_codec_driver_pm = {
- SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
- pm_runtime_force_resume)
+#ifdef CONFIG_PM_SLEEP
+ .suspend = hda_codec_pm_suspend,
+ .resume = hda_codec_pm_resume,
+ .freeze = hda_codec_pm_freeze,
+ .thaw = hda_codec_pm_thaw,
+ .poweroff = hda_codec_pm_suspend,
+ .restore = hda_codec_pm_restore,
+#endif /* CONFIG_PM_SLEEP */
SET_RUNTIME_PM_OPS(hda_codec_runtime_suspend, hda_codec_runtime_resume,
NULL)
};