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    Subject[PATCH 4.14 014/110] ALSA: hda - Fix pincfg at resume on Lenovo T470 dock
    Date
    4.14-stable review patch.  If anyone has any objections, please let me know.

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

    From: Takashi Iwai <tiwai@suse.de>

    commit 71db96ddfa72671bd43cacdcc99ca178d90ba267 upstream.

    We've added a quirk to enable the recent Lenovo dock support, where it
    overwrites the pin configs of NID 0x17 and 19, not only updating the
    pin config cache. It works right after the boot, but the problem is
    that the pin configs are occasionally cleared when the machine goes to
    PM. Meanwhile the quirk writes the pin configs only at the pre-probe,
    so this won't be applied any longer.

    For addressing that issue, this patch moves the code to overwrite the
    pin configs into HDA_FIXUP_ACT_INIT section so that it's always
    applied at both probe and resume time.

    Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=195161
    Fixes: 61fcf8ece9b6 ("ALSA: hda/realtek - Enable Thinkpad Dock device for ALC298 platform")
    Cc: <stable@vger.kernel.org>
    Signed-off-by: Takashi Iwai <tiwai@suse.de>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    sound/pci/hda/patch_realtek.c | 3 ++-
    1 file changed, 2 insertions(+), 1 deletion(-)

    --- a/sound/pci/hda/patch_realtek.c
    +++ b/sound/pci/hda/patch_realtek.c
    @@ -4852,13 +4852,14 @@ static void alc_fixup_tpt470_dock(struct

    if (action == HDA_FIXUP_ACT_PRE_PROBE) {
    spec->parse_flags = HDA_PINCFG_NO_HP_FIXUP;
    + snd_hda_apply_pincfgs(codec, pincfgs);
    + } else if (action == HDA_FIXUP_ACT_INIT) {
    /* Enable DOCK device */
    snd_hda_codec_write(codec, 0x17, 0,
    AC_VERB_SET_CONFIG_DEFAULT_BYTES_3, 0);
    /* Enable DOCK device */
    snd_hda_codec_write(codec, 0x19, 0,
    AC_VERB_SET_CONFIG_DEFAULT_BYTES_3, 0);
    - snd_hda_apply_pincfgs(codec, pincfgs);
    }
    }


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