[ALSA] Fix noisy output with shared channel mode with hd-audio

- Fix the wrong initialization of num_dacs when changing the channel
  mode between 2 and multi-channel modes.  It must be evaluated
  after calling snd_hda_ch_mode_put()
- Added the similar check of num_dacs fix in Realtek code.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

2 files changed, 29 insertions, 6 deletions

diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c
index 8955397cca6f..077f1ce01ee1 100644
--- a/sound/pci/hda/patch_analog.c
+++ b/sound/pci/hda/patch_analog.c
@@ -1647,10 +1647,12 @@ static int ad198x_ch_mode_put(struct snd_kcontrol *kcontrol,
 {
         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
         struct ad198x_spec *spec = codec->spec;
-        if (spec->need_dac_fix)
+        int err = snd_hda_ch_mode_put(codec, ucontrol, spec->channel_mode,
+                                      spec->num_channel_mode,
+                                      &spec->multiout.max_channels);
+        if (! err && spec->need_dac_fix)
                 spec->multiout.num_dacs = spec->multiout.max_channels / 2;
-        return snd_hda_ch_mode_put(codec, ucontrol, spec->channel_mode,
-                                   spec->num_channel_mode, &spec->multiout.max_channels);
+        return err;
 }
 
 /* 6-stack mode */
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 378e5f111e34..991f1079116b 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -155,6 +155,7 @@ struct alc_spec {
         /* channel model */
         const struct hda_channel_mode *channel_mode;
         int num_channel_mode;
+        int need_dac_fix;
 
         /* PCM information */
         struct hda_pcm pcm_rec[3];      /* used in alc_build_pcms() */
@@ -192,6 +193,7 @@ struct alc_config_preset {
         hda_nid_t dig_in_nid;
         unsigned int num_channel_mode;
         const struct hda_channel_mode *channel_mode;
+        int need_dac_fix;
         unsigned int num_mux_defs;
         const struct hda_input_mux *input_mux;
         void (*unsol_event)(struct hda_codec *, unsigned int);
@@ -264,9 +266,12 @@ static int alc_ch_mode_put(struct snd_kcontrol *kcontrol,
 {
         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
         struct alc_spec *spec = codec->spec;
-        return snd_hda_ch_mode_put(codec, ucontrol, spec->channel_mode,
-                                   spec->num_channel_mode,
-                                   &spec->multiout.max_channels);
+        int err = snd_hda_ch_mode_put(codec, ucontrol, spec->channel_mode,
+                                      spec->num_channel_mode,
+                                      &spec->multiout.max_channels);
+        if (! err && spec->need_dac_fix)
+                spec->multiout.num_dacs = spec->multiout.max_channels / 2;
+        return err;
 }
 
 /*
@@ -546,6 +551,7 @@ static void setup_preset(struct alc_spec *spec,
         
         spec->channel_mode = preset->channel_mode;
         spec->num_channel_mode = preset->num_channel_mode;
+        spec->need_dac_fix = preset->need_dac_fix;
 
         spec->multiout.max_channels = spec->channel_mode[0].channels;
 
@@ -2278,6 +2284,7 @@ static struct alc_config_preset alc880_presets[] = {
                 .dac_nids = alc880_dac_nids,
                 .num_channel_mode = ARRAY_SIZE(alc880_threestack_modes),
                 .channel_mode = alc880_threestack_modes,
+                .need_dac_fix = 1,
                 .input_mux = &alc880_capture_source,
         },
         [ALC880_3ST_DIG] = {
@@ -2288,6 +2295,7 @@ static struct alc_config_preset alc880_presets[] = {
                 .dig_out_nid = ALC880_DIGOUT_NID,
                 .num_channel_mode = ARRAY_SIZE(alc880_threestack_modes),
                 .channel_mode = alc880_threestack_modes,
+                .need_dac_fix = 1,
                 .input_mux = &alc880_capture_source,
         },
         [ALC880_TCL_S700] = {
@@ -2380,6 +2388,7 @@ static struct alc_config_preset alc880_presets[] = {
                 .dac_nids = alc880_asus_dac_nids,
                 .num_channel_mode = ARRAY_SIZE(alc880_asus_modes),
                 .channel_mode = alc880_asus_modes,
+                .need_dac_fix = 1,
                 .input_mux = &alc880_capture_source,
         },
         [ALC880_ASUS_DIG] = {
@@ -2391,6 +2400,7 @@ static struct alc_config_preset alc880_presets[] = {
                 .dig_out_nid = ALC880_DIGOUT_NID,
                 .num_channel_mode = ARRAY_SIZE(alc880_asus_modes),
                 .channel_mode = alc880_asus_modes,
+                .need_dac_fix = 1,
                 .input_mux = &alc880_capture_source,
         },
         [ALC880_ASUS_DIG2] = {
@@ -2402,6 +2412,7 @@ static struct alc_config_preset alc880_presets[] = {
                 .dig_out_nid = ALC880_DIGOUT_NID,
                 .num_channel_mode = ARRAY_SIZE(alc880_asus_modes),
                 .channel_mode = alc880_asus_modes,
+                .need_dac_fix = 1,
                 .input_mux = &alc880_capture_source,
         },
         [ALC880_ASUS_W1V] = {
@@ -2413,6 +2424,7 @@ static struct alc_config_preset alc880_presets[] = {
                 .dig_out_nid = ALC880_DIGOUT_NID,
                 .num_channel_mode = ARRAY_SIZE(alc880_asus_modes),
                 .channel_mode = alc880_asus_modes,
+                .need_dac_fix = 1,
                 .input_mux = &alc880_capture_source,
         },
         [ALC880_UNIWILL_DIG] = {
@@ -2423,6 +2435,7 @@ static struct alc_config_preset alc880_presets[] = {
                 .dig_out_nid = ALC880_DIGOUT_NID,
                 .num_channel_mode = ARRAY_SIZE(alc880_asus_modes),
                 .channel_mode = alc880_asus_modes,
+                .need_dac_fix = 1,
                 .input_mux = &alc880_capture_source,
         },
         [ALC880_CLEVO] = {
@@ -2434,6 +2447,7 @@ static struct alc_config_preset alc880_presets[] = {
                 .hp_nid = 0x03,
                 .num_channel_mode = ARRAY_SIZE(alc880_threestack_modes),
                 .channel_mode = alc880_threestack_modes,
+                .need_dac_fix = 1,
                 .input_mux = &alc880_capture_source,
         },
         [ALC880_LG] = {
@@ -2445,6 +2459,7 @@ static struct alc_config_preset alc880_presets[] = {
                 .dig_out_nid = ALC880_DIGOUT_NID,
                 .num_channel_mode = ARRAY_SIZE(alc880_lg_ch_modes),
                 .channel_mode = alc880_lg_ch_modes,
+                .need_dac_fix = 1,
                 .input_mux = &alc880_lg_capture_source,
                 .unsol_event = alc880_lg_unsol_event,
                 .init_hook = alc880_lg_automute,
@@ -4437,6 +4452,7 @@ static struct alc_config_preset alc882_presets[] = {
                 .dig_in_nid = ALC882_DIGIN_NID,
                 .num_channel_mode = ARRAY_SIZE(alc882_ch_modes),
                 .channel_mode = alc882_ch_modes,
+                .need_dac_fix = 1,
                 .input_mux = &alc882_capture_source,
         },
         [ALC882_6ST_DIG] = {
@@ -5075,6 +5091,7 @@ static struct alc_config_preset alc883_presets[] = {
                 .dig_in_nid = ALC883_DIGIN_NID,
                 .num_channel_mode = ARRAY_SIZE(alc883_3ST_6ch_modes),
                 .channel_mode = alc883_3ST_6ch_modes,
+                .need_dac_fix = 1,
                 .input_mux = &alc883_capture_source,
         },      
         [ALC883_3ST_6ch] = {
@@ -5086,6 +5103,7 @@ static struct alc_config_preset alc883_presets[] = {
                 .adc_nids = alc883_adc_nids,
                 .num_channel_mode = ARRAY_SIZE(alc883_3ST_6ch_modes),
                 .channel_mode = alc883_3ST_6ch_modes,
+                .need_dac_fix = 1,
                 .input_mux = &alc883_capture_source,
         },      
         [ALC883_6ST_DIG] = {
@@ -6554,6 +6572,7 @@ static struct alc_config_preset alc861_presets[] = {
                 .dac_nids = alc861_dac_nids,
                 .num_channel_mode = ARRAY_SIZE(alc861_threestack_modes),
                 .channel_mode = alc861_threestack_modes,
+                .need_dac_fix = 1,
                 .num_adc_nids = ARRAY_SIZE(alc861_adc_nids),
                 .adc_nids = alc861_adc_nids,
                 .input_mux = &alc861_capture_source,
@@ -6566,6 +6585,7 @@ static struct alc_config_preset alc861_presets[] = {
                 .dig_out_nid = ALC861_DIGOUT_NID,
                 .num_channel_mode = ARRAY_SIZE(alc861_threestack_modes),
                 .channel_mode = alc861_threestack_modes,
+                .need_dac_fix = 1,
                 .num_adc_nids = ARRAY_SIZE(alc861_adc_nids),
                 .adc_nids = alc861_adc_nids,
                 .input_mux = &alc861_capture_source,
@@ -6589,6 +6609,7 @@ static struct alc_config_preset alc861_presets[] = {
                 .dac_nids = alc660_dac_nids,
                 .num_channel_mode = ARRAY_SIZE(alc861_threestack_modes),
                 .channel_mode = alc861_threestack_modes,
+                .need_dac_fix = 1,
                 .num_adc_nids = ARRAY_SIZE(alc861_adc_nids),
                 .adc_nids = alc861_adc_nids,
                 .input_mux = &alc861_capture_source,