Merge remote-tracking branches 'spi/topic/qup', 'spi/topic/rockchip', 'spi/topic...

[firefly-linux-kernel-4.4.55.git] / sound / pci / hda / hda_generic.c

diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c
index fe18071bf93aab4d44e779f9b7daaca3a2815b5b..8ec5289f8e058538892aa04c402a4db9967c94c7 100644 (file)
--- a/sound/pci/hda/hda_generic.c
+++ b/sound/pci/hda/hda_generic.c
@@ -687,13 +687,30 @@ static int get_amp_val_to_activate(struct hda_codec *codec, hda_nid_t nid,
        return val;
 }
 
+/* is this a stereo widget or a stereo-to-mono mix? */
+static bool is_stereo_amps(struct hda_codec *codec, hda_nid_t nid, int dir)
+{
+       unsigned int wcaps = get_wcaps(codec, nid);
+       hda_nid_t conn;
+
+       if (wcaps & AC_WCAP_STEREO)
+               return true;
+       if (dir != HDA_INPUT || get_wcaps_type(wcaps) != AC_WID_AUD_MIX)
+               return false;
+       if (snd_hda_get_num_conns(codec, nid) != 1)
+               return false;
+       if (snd_hda_get_connections(codec, nid, &conn, 1) < 0)
+               return false;
+       return !!(get_wcaps(codec, conn) & AC_WCAP_STEREO);
+}
+
 /* initialize the amp value (only at the first time) */
 static void init_amp(struct hda_codec *codec, hda_nid_t nid, int dir, int idx)
 {
        unsigned int caps = query_amp_caps(codec, nid, dir);
        int val = get_amp_val_to_activate(codec, nid, dir, caps, false);
 
-       if (get_wcaps(codec, nid) & AC_WCAP_STEREO)
+       if (is_stereo_amps(codec, nid, dir))
                snd_hda_codec_amp_init_stereo(codec, nid, dir, idx, 0xff, val);
        else
                snd_hda_codec_amp_init(codec, nid, 0, dir, idx, 0xff, val);
@@ -703,7 +720,7 @@ static void init_amp(struct hda_codec *codec, hda_nid_t nid, int dir, int idx)
 static int update_amp(struct hda_codec *codec, hda_nid_t nid, int dir, int idx,
                      unsigned int mask, unsigned int val)
 {
-       if (get_wcaps(codec, nid) & AC_WCAP_STEREO)
+       if (is_stereo_amps(codec, nid, dir))
                return snd_hda_codec_amp_stereo(codec, nid, dir, idx,
                                                mask, val);
        else