This is a note to let you know that I've just added the patch titled

    ALSA: hda - adding a DAC/pin preference map for a HP Envy TS machine

to the 4.0-stable tree which can be found at:
    
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     alsa-hda-adding-a-dac-pin-preference-map-for-a-hp-envy-ts-machine.patch
and it can be found in the queue-4.0 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.


>From 6ab42ff44864d26e8e498b8ac655d24ee389d267 Mon Sep 17 00:00:00 2001
From: Hui Wang <[email protected]>
Date: Mon, 15 Jun 2015 17:43:39 +0800
Subject: ALSA: hda - adding a DAC/pin preference map for a HP Envy TS machine

From: Hui Wang <[email protected]>

commit 6ab42ff44864d26e8e498b8ac655d24ee389d267 upstream.

On a HP Envy TouchSmart laptop, there are 2 speakers (main speaker
and subwoofer speaker), 1 headphone and 2 DACs, without this fixup,
the headphone will be assigned to a DAC and the 2 speakers will be
assigned to another DAC, this assignment makes the surround-2.1
channels invalid.

To fix it, here using a DAC/pin preference map to bind the main
speaker to 1 DAC and the subwoofer speaker will be assigned to another
DAC.

Signed-off-by: Hui Wang <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

---
 sound/pci/hda/patch_sigmatel.c |   25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -100,6 +100,7 @@ enum {
        STAC_HP_ENVY_BASS,
        STAC_HP_BNB13_EQ,
        STAC_HP_ENVY_TS_BASS,
+       STAC_HP_ENVY_TS_DAC_BIND,
        STAC_92HD83XXX_GPIO10_EAPD,
        STAC_92HD83XXX_MODELS
 };
@@ -2170,6 +2171,22 @@ static void stac92hd83xxx_fixup_gpio10_e
        spec->eapd_switch = 0;
 }
 
+static void hp_envy_ts_fixup_dac_bind(struct hda_codec *codec,
+                                           const struct hda_fixup *fix,
+                                           int action)
+{
+       struct sigmatel_spec *spec = codec->spec;
+       static hda_nid_t preferred_pairs[] = {
+               0xd, 0x13,
+               0
+       };
+
+       if (action != HDA_FIXUP_ACT_PRE_PROBE)
+               return;
+
+       spec->gen.preferred_dacs = preferred_pairs;
+}
+
 static const struct hda_verb hp_bnb13_eq_verbs[] = {
        /* 44.1KHz base */
        { 0x22, 0x7A6, 0x3E },
@@ -2685,6 +2702,12 @@ static const struct hda_fixup stac92hd83
                        {}
                },
        },
+       [STAC_HP_ENVY_TS_DAC_BIND] = {
+               .type = HDA_FIXUP_FUNC,
+               .v.func = hp_envy_ts_fixup_dac_bind,
+               .chained = true,
+               .chain_id = STAC_HP_ENVY_TS_BASS,
+       },
        [STAC_92HD83XXX_GPIO10_EAPD] = {
                .type = HDA_FIXUP_FUNC,
                .v.func = stac92hd83xxx_fixup_gpio10_eapd,
@@ -2763,6 +2786,8 @@ static const struct snd_pci_quirk stac92
                          "HP bNB13", STAC_HP_BNB13_EQ),
        SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x190e,
                          "HP ENVY TS", STAC_HP_ENVY_TS_BASS),
+       SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x1967,
+                         "HP ENVY TS", STAC_HP_ENVY_TS_DAC_BIND),
        SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x1940,
                          "HP bNB13", STAC_HP_BNB13_EQ),
        SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x1941,


Patches currently in stable-queue which might be from [email protected] are

queue-4.0/alsa-hda-adding-a-dac-pin-preference-map-for-a-hp-envy-ts-machine.patch
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