2 files changed, 15 insertions, 0 deletions

diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt
index 241e26c4ff92..68c3bbd7d6db 100644
--- a/Documentation/sound/alsa/ALSA-Configuration.txt
+++ b/Documentation/sound/alsa/ALSA-Configuration.txt
@@ -975,6 +975,7 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
           ref           Reference board
           3stack        D965 3stack
           5stack        D965 5stack + SPDIF
+          dell-3stack   Dell E520
 
         STAC9872
           vaio          Setup for VAIO FE550G/SZ110
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 5ca430cc399a..87a36e9d6546 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -80,6 +80,7 @@ enum {
         STAC_D965_REF,
         STAC_D965_3ST,
         STAC_D965_5ST,
+        STAC_DELL_3ST,
         STAC_927X_MODELS
 };
 
@@ -719,16 +720,25 @@ static unsigned int d965_5st_pin_configs[14] = {
         0x40000100, 0x40000100
 };
 
+static unsigned int dell_3st_pin_configs[14] = {
+        0x02211230, 0x02a11220, 0x01a19040, 0x01114210,
+        0x01111212, 0x01116211, 0x01813050, 0x01112214,
+        0x403003fa, 0x40000100, 0x40000100, 0x404003fb,
+        0x40c003fc, 0x40000100
+};
+
 static unsigned int *stac927x_brd_tbl[STAC_927X_MODELS] = {
         [STAC_D965_REF] = ref927x_pin_configs,
         [STAC_D965_3ST] = d965_3st_pin_configs,
         [STAC_D965_5ST] = d965_5st_pin_configs,
+        [STAC_DELL_3ST] = dell_3st_pin_configs,
 };
 
 static const char *stac927x_models[STAC_927X_MODELS] = {
         [STAC_D965_REF] = "ref",
         [STAC_D965_3ST] = "3stack",
         [STAC_D965_5ST] = "5stack",
+        [STAC_DELL_3ST] = "dell-3stack",
 };
 
 static struct snd_pci_quirk stac927x_cfg_tbl[] = {
@@ -755,6 +765,10 @@ static struct snd_pci_quirk stac927x_cfg_tbl[] = {
         SND_PCI_QUIRK(PCI_VENDOR_ID_INTEL, 0x2003, "Intel D965", STAC_D965_3ST),
         SND_PCI_QUIRK(PCI_VENDOR_ID_INTEL, 0x2002, "Intel D965", STAC_D965_3ST),
         SND_PCI_QUIRK(PCI_VENDOR_ID_INTEL, 0x2001, "Intel D965", STAC_D965_3ST),
+        /* Dell 3 stack systems */
+        SND_PCI_QUIRK(PCI_VENDOR_ID_DELL,  0x01dd, "Dell E520", STAC_DELL_3ST),
+        SND_PCI_QUIRK(PCI_VENDOR_ID_DELL,  0x01ed, "Dell     ", STAC_DELL_3ST),
+        SND_PCI_QUIRK(PCI_VENDOR_ID_DELL,  0x01f4, "Dell     ", STAC_DELL_3ST),
         /* 965 based 5 stack systems */
         SND_PCI_QUIRK(PCI_VENDOR_ID_INTEL, 0x2301, "Intel D965", STAC_D965_5ST),
         SND_PCI_QUIRK(PCI_VENDOR_ID_INTEL, 0x2302, "Intel D965", STAC_D965_5ST),