ALSA: hda - Force to reset IEC958 status bits for AD codecs

commit ae24c3191ba2ab03ec6b4be323e730e00404b4b6 upstream.

Several bug reports suggest that the forcibly resetting IEC958 status
bits is required for AD codecs to get the SPDIF output working
properly after changing streams.

Original fix credit to Javeed Shaikh.

BugLink: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/359361
Reported-by: Robin Kreis <r.kreis@uni-bremen.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c
index 0208fa121e5aad0fa4c77f6d5a642aebb38417dd..b2cd011afbe061e7cb00bfb9043806aeabf053f4 100644 (file)
--- a/sound/pci/hda/patch_analog.c
+++ b/sound/pci/hda/patch_analog.c
@@ -545,6 +545,7 @@ static int ad198x_build_pcms(struct hda_codec *codec)
        if (spec->multiout.dig_out_nid) {
                info++;
                codec->num_pcms++;
+               codec->spdif_status_reset = 1;
                info->name = "AD198x Digital";
                info->pcm_type = HDA_PCM_TYPE_SPDIF;
                info->stream[SNDRV_PCM_STREAM_PLAYBACK] = ad198x_pcm_digital_playback;