[ALSA] hda: add sigmatel 9205 eapd support

Adds support for handling EAPD on 9205 codecs

Signed-off-by: Matt Porter <mporter@embeddedalley.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

1 files changed, 12 insertions, 0 deletions

diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index cbaa00aa5b92..4e3fc95b7b4f 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -1859,6 +1859,18 @@ static int patch_stac9205(struct hda_codec *codec)
 
         spec->multiout.dac_nids = spec->dac_nids;
 
+        /* Configure GPIO0 as EAPD output */
+        snd_hda_codec_write(codec, codec->afg, 0,
+                            AC_VERB_SET_GPIO_DIRECTION, 0x00000001);
+        /* Configure GPIO0 as CMOS */
+        snd_hda_codec_write(codec, codec->afg, 0, 0x7e7, 0x00000000);
+        /* Assert GPIO0 high */
+        snd_hda_codec_write(codec, codec->afg, 0,
+                            AC_VERB_SET_GPIO_DATA, 0x00000001);
+        /* Enable GPIO0 */
+        snd_hda_codec_write(codec, codec->afg, 0,
+                            AC_VERB_SET_GPIO_MASK, 0x00000001);
+
         err = stac92xx_parse_auto_config(codec, 0x1f, 0x20);
         if (err < 0) {
                 stac92xx_free(codec);