[alsa-devel] [PATCH 058/112] ALSA: hda - Flush dirty amp caches before writing inv_dmic fix

[Takashi Iwai]

The inverted dmic fix overwrites the right channel amp value, but it
would work only when the amp values have been already actually
written.  Put snd_hda_codec_resume_amp() before the amp write for
flushing caches.

Signed-off-by: Takashi Iwai <tiwai at suse.de>
---
 sound/pci/hda/patch_realtek.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 17da84d..20e657b 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -633,6 +633,9 @@ static void alc_inv_dmic_sync_adc(struct hda_codec *codec, int adc_idx)
 	parm = AC_AMP_SET_RIGHT |
 		(dir == HDA_OUTPUT ? AC_AMP_SET_OUTPUT : AC_AMP_SET_INPUT);
 
+	/* flush all cached amps at first */
+	snd_hda_codec_resume_amp(codec);
+
 	/* we care only right channel */
 	val = snd_hda_codec_amp_read(codec, nid, 1, dir, 0);
 	if (val & 0x80) /* if already muted, we don't need to touch */
-- 
1.8.0.1