3.18-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Kailang Yang <kail...@realtek.com>

commit 4344aec84bd84b58a01347f0db7693f73fb6473d upstream.

Add new support for ALC256 codec.

Signed-off-by: Kailang Yang <kail...@realtek.com>
Signed-off-by: Takashi Iwai <ti...@suse.de>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 sound/pci/hda/patch_realtek.c |    7 +++++++
 1 file changed, 7 insertions(+)

--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -319,6 +319,7 @@ static void alc_fill_eapd_coef(struct hd
                break;
        case 0x10ec0233:
        case 0x10ec0255:
+       case 0x10ec0256:
        case 0x10ec0282:
        case 0x10ec0283:
        case 0x10ec0286:
@@ -2660,6 +2661,7 @@ enum {
        ALC269_TYPE_ALC286,
        ALC269_TYPE_ALC298,
        ALC269_TYPE_ALC255,
+       ALC269_TYPE_ALC256,
 };
 
 /*
@@ -2688,6 +2690,7 @@ static int alc269_parse_auto_config(stru
        case ALC269_TYPE_ALC286:
        case ALC269_TYPE_ALC298:
        case ALC269_TYPE_ALC255:
+       case ALC269_TYPE_ALC256:
                ssids = alc269_ssids;
                break;
        default:
@@ -5386,6 +5389,9 @@ static int patch_alc269(struct hda_codec
        case 0x10ec0255:
                spec->codec_variant = ALC269_TYPE_ALC255;
                break;
+       case 0x10ec0256:
+               spec->codec_variant = ALC269_TYPE_ALC256;
+               break;
        }
 
        if (snd_hda_codec_read(codec, 0x51, 0, AC_VERB_PARAMETERS, 0) == 
0x10ec5505) {
@@ -6321,6 +6327,7 @@ static const struct hda_codec_preset snd
        { .id = 0x10ec0233, .name = "ALC233", .patch = patch_alc269 },
        { .id = 0x10ec0235, .name = "ALC233", .patch = patch_alc269 },
        { .id = 0x10ec0255, .name = "ALC255", .patch = patch_alc269 },
+       { .id = 0x10ec0256, .name = "ALC256", .patch = patch_alc269 },
        { .id = 0x10ec0260, .name = "ALC260", .patch = patch_alc260 },
        { .id = 0x10ec0262, .name = "ALC262", .patch = patch_alc262 },
        { .id = 0x10ec0267, .name = "ALC267", .patch = patch_alc268 },


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