ALSA: hda - Cache the MUX selection for generic HDMI

commit bddee96b5d0db869f47b195fe48c614ca824203c upstream.

When a selection to a converter MUX is changed in hdmi_pcm_open(), it
should be cached so that the given connection can be restored properly
at PM resume.  We need just to replace the corresponding
snd_hda_codec_write() call with snd_hda_codec_write_cache().

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: Weng Meiling <wengmeiling.weng@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 4d00eff87d68182df6ef3e7321d6ad3d8439e58e..3e1d50b6e8dd3e990d9854f6b31730405752d5e0 100644 (file)
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -910,7 +910,7 @@ static int hdmi_pcm_open(struct hda_pcm_stream *hinfo,
        per_cvt->assigned = 1;
        hinfo->nid = per_cvt->cvt_nid;
 
-       snd_hda_codec_write(codec, per_pin->pin_nid, 0,
+       snd_hda_codec_write_cache(codec, per_pin->pin_nid, 0,
                            AC_VERB_SET_CONNECT_SEL,
                            mux_idx);
        snd_hda_spdif_ctls_assign(codec, pin_idx, per_cvt->cvt_nid);