{ 0x574d4C09, 0xffffffff, "WM9709",            NULL,           NULL},
 { 0x574d4C12, 0xffffffff, "WM9711,WM9712",     patch_wolfson11, NULL},
 { 0x574d4c13, 0xffffffff, "WM9713,WM9714",     patch_wolfson13, NULL, AC97_DEFAULT_POWER_OFF},
-{ 0x594d4800, 0xffffffff, "YMF743",            NULL,           NULL },
+{ 0x594d4800, 0xffffffff, "YMF743",            patch_yamaha_ymf743,    NULL },
 { 0x594d4802, 0xffffffff, "YMF752",            NULL,           NULL },
 { 0x594d4803, 0xffffffff, "YMF753",            patch_yamaha_ymf753,    NULL },
 { 0x83847600, 0xffffffff, "STAC9700,83,84",    patch_sigmatel_stac9700,        NULL },
                change |= snd_ac97_update_bits_nolock(ac97, AC97_CXR_AUDIO_MISC, 
                                                      AC97_CXR_SPDIF_MASK | AC97_CXR_COPYRGT,
                                                      v);
+       } else if (ac97->id == AC97_ID_YMF743) {
+               change |= snd_ac97_update_bits_nolock(ac97,
+                                                     AC97_YMF7X3_DIT_CTRL,
+                                                     0xff38,
+                                                     ((val << 4) & 0xff00) |
+                                                     ((val << 2) & 0x0038));
        } else {
                unsigned short extst = snd_ac97_read_cache(ac97, AC97_EXTENDED_STATUS);
                snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0); /* turn off */
                        for (idx = 0; idx < 2; idx++) {
                                if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_tone[idx], ac97))) < 0)
                                        return err;
-                               if (ac97->id == AC97_ID_YMF753) {
+                               if (ac97->id == AC97_ID_YMF743 ||
+                                   ac97->id == AC97_ID_YMF753) {
                                        kctl->private_value &= ~(0xff << 16);
                                        kctl->private_value |= 7 << 16;
                                }
 
 
 
 /* The following snd_ac97_ymf753_... items added by David Shust (dshust@shustring.com) */
+/* Modified for YMF743 by Keita Maehara <maehara@debian.org> */
 
 /* It is possible to indicate to the Yamaha YMF7x3 the type of
    speakers being used. */
        return snd_ac97_update_bits(ac97, AC97_YMF7X3_DIT_CTRL, 0x0002, val);
 }
 
+static int patch_yamaha_ymf7x3_3d(struct snd_ac97 *ac97)
+{
+       struct snd_kcontrol *kctl;
+       int err;
+
+       kctl = snd_ac97_cnew(&snd_ac97_controls_3d[0], ac97);
+       err = snd_ctl_add(ac97->bus->card, kctl);
+       if (err < 0)
+               return err;
+       strcpy(kctl->id.name, "3D Control - Wide");
+       kctl->private_value = AC97_SINGLE_VALUE(AC97_3D_CONTROL, 9, 7, 0);
+       snd_ac97_write_cache(ac97, AC97_3D_CONTROL, 0x0000);
+       err = snd_ctl_add(ac97->bus->card,
+                         snd_ac97_cnew(&snd_ac97_ymf7x3_controls_speaker,
+                                       ac97));
+       if (err < 0)
+               return err;
+       snd_ac97_write_cache(ac97, AC97_YMF7X3_3D_MODE_SEL, 0x0c00);
+       return 0;
+}
+
+static const struct snd_kcontrol_new snd_ac97_yamaha_ymf743_controls_spdif[3] =
+{
+       AC97_SINGLE(SNDRV_CTL_NAME_IEC958("", PLAYBACK, SWITCH),
+                   AC97_YMF7X3_DIT_CTRL, 0, 1, 0),
+       {
+               .iface  = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .name   = SNDRV_CTL_NAME_IEC958("", PLAYBACK, NONE) "Source",
+               .info   = snd_ac97_ymf7x3_spdif_source_info,
+               .get    = snd_ac97_ymf7x3_spdif_source_get,
+               .put    = snd_ac97_ymf7x3_spdif_source_put,
+       },
+       AC97_SINGLE(SNDRV_CTL_NAME_IEC958("", NONE, NONE) "Mute",
+                   AC97_YMF7X3_DIT_CTRL, 2, 1, 1)
+};
+
+static int patch_yamaha_ymf743_build_spdif(struct snd_ac97 *ac97)
+{
+       int err;
+
+       err = patch_build_controls(ac97, &snd_ac97_controls_spdif[0], 3);
+       if (err < 0)
+               return err;
+       err = patch_build_controls(ac97,
+                                  snd_ac97_yamaha_ymf743_controls_spdif, 3);
+       if (err < 0)
+               return err;
+       /* set default PCM S/PDIF params */
+       /* PCM audio,no copyright,no preemphasis,PCM coder,original */
+       snd_ac97_write_cache(ac97, AC97_YMF7X3_DIT_CTRL, 0xa201);
+       return 0;
+}
+
+static struct snd_ac97_build_ops patch_yamaha_ymf743_ops = {
+       .build_spdif    = patch_yamaha_ymf743_build_spdif,
+       .build_3d       = patch_yamaha_ymf7x3_3d,
+};
+
+static int patch_yamaha_ymf743(struct snd_ac97 *ac97)
+{
+       ac97->build_ops = &patch_yamaha_ymf743_ops;
+       ac97->caps |= AC97_BC_BASS_TREBLE;
+       ac97->caps |= 0x04 << 10; /* Yamaha 3D enhancement */
+       ac97->rates[AC97_RATES_SPDIF] = SNDRV_PCM_RATE_48000; /* 48k only */
+       ac97->ext_id |= AC97_EI_SPDIF; /* force the detection of spdif */
+       return 0;
+}
+
 /* The AC'97 spec states that the S/PDIF signal is to be output at pin 48.
    The YMF753 will output the S/PDIF signal to pin 43, 47 (EAPD), or 48.
    By default, no output pin is selected, and the S/PDIF signal is not output.
                    AC97_YMF7X3_DIT_CTRL, 2, 1, 1)
 };
 
-static int patch_yamaha_ymf7x3_3d(struct snd_ac97 *ac97)
-{
-       struct snd_kcontrol *kctl;
-       int err;
-
-       kctl = snd_ac97_cnew(&snd_ac97_controls_3d[0], ac97);
-       err = snd_ctl_add(ac97->bus->card, kctl);
-       if (err < 0)
-               return err;
-       strcpy(kctl->id.name, "3D Control - Wide");
-       kctl->private_value = AC97_SINGLE_VALUE(AC97_3D_CONTROL, 9, 7, 0);
-       snd_ac97_write_cache(ac97, AC97_3D_CONTROL, 0x0000);
-
-       err = snd_ctl_add(ac97->bus->card,
-                         snd_ac97_cnew(&snd_ac97_ymf7x3_controls_speaker,
-                                       ac97));
-       if (err < 0)
-               return err;
-       snd_ac97_write_cache(ac97, AC97_YMF7X3_3D_MODE_SEL, 0x0c00);
-       return 0;
-}
-
 static int patch_yamaha_ymf753_post_spdif(struct snd_ac97 * ac97)
 {
        int err;