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authorTakashi Iwai <tiwai@suse.de>2018-02-12 14:00:48 +0100
committerTakashi Iwai <tiwai@suse.de>2018-02-12 14:01:23 +0100
commitbafeca673f04ecd54cbb6b87faf8d525a886d481 (patch)
tree3d8899309dcd59a6fbca440ef5807d3b0c614186 /sound/pci
parent1dcb1859dd6752131b85c78fb3e440bd1d2cf361 (diff)
parent3b5b899ca67db07a4c4825911072221f99e157e2 (diff)
downloadlinux-bafeca673f04ecd54cbb6b87faf8d525a886d481.tar.bz2
Merge branch 'topic/hda-sync-power' into for-next
Pull the HD-audio power sync fix. This is shared with ASoC. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci')
-rw-r--r--sound/pci/hda/hda_codec.c28
-rw-r--r--sound/pci/hda/hda_local.h6
2 files changed, 6 insertions, 28 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index e018ecbf78a8..5bc3a7468e17 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -2702,32 +2702,6 @@ void snd_hda_codec_set_power_to_all(struct hda_codec *codec, hda_nid_t fg,
}
EXPORT_SYMBOL_GPL(snd_hda_codec_set_power_to_all);
-/*
- * wait until the state is reached, returns the current state
- */
-static unsigned int hda_sync_power_state(struct hda_codec *codec,
- hda_nid_t fg,
- unsigned int power_state)
-{
- unsigned long end_time = jiffies + msecs_to_jiffies(500);
- unsigned int state, actual_state;
-
- for (;;) {
- state = snd_hda_codec_read(codec, fg, 0,
- AC_VERB_GET_POWER_STATE, 0);
- if (state & AC_PWRST_ERROR)
- break;
- actual_state = (state >> 4) & 0x0f;
- if (actual_state == power_state)
- break;
- if (time_after_eq(jiffies, end_time))
- break;
- /* wait until the codec reachs to the target state */
- msleep(1);
- }
- return state;
-}
-
/**
* snd_hda_codec_eapd_power_filter - A power filter callback for EAPD
* @codec: the HDA codec
@@ -2790,7 +2764,7 @@ static unsigned int hda_set_power_state(struct hda_codec *codec,
state);
snd_hda_codec_set_power_to_all(codec, fg, power_state);
}
- state = hda_sync_power_state(codec, fg, power_state);
+ state = snd_hda_sync_power_state(codec, fg, power_state);
if (!(state & AC_PWRST_ERROR))
break;
}
diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h
index 5b5c324c99b9..321e78baa63c 100644
--- a/sound/pci/hda/hda_local.h
+++ b/sound/pci/hda/hda_local.h
@@ -622,7 +622,11 @@ snd_hda_check_power_state(struct hda_codec *codec, hda_nid_t nid,
{
return snd_hdac_check_power_state(&codec->core, nid, target_state);
}
-
+static inline bool snd_hda_sync_power_state(struct hda_codec *codec,
+ hda_nid_t nid, unsigned int target_state)
+{
+ return snd_hdac_sync_power_state(&codec->core, nid, target_state);
+}
unsigned int snd_hda_codec_eapd_power_filter(struct hda_codec *codec,
hda_nid_t nid,
unsigned int power_state);