linux-kernel - Re: [PATCH] ALSA: hda - Enable subwoofer on Dell Inspiron 7559

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Date:   Tue, 30 Aug 2016 07:33:59 +0200
From:   Takashi Iwai <tiwai@...e.de>
To:     "Kai-Heng Feng" <kai.heng.feng@...onical.com>
Cc:     <alsa-devel@...a-project.org>, <hui.wang@...onical.com>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ALSA: hda - Enable subwoofer on Dell Inspiron 7559

On Tue, 30 Aug 2016 07:27:41 +0200,
Kai-Heng Feng wrote:
> 
> The subwoofer on Inspiron 7559 does not work originally.
> Applying a pin fixup can make it work.
> 
> Signed-off-by: Kai-Heng Feng <kai.heng.feng@...onical.com>
> ---
>  sound/pci/hda/patch_realtek.c | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
> index 7100f05..2a3dd18 100644
> --- a/sound/pci/hda/patch_realtek.c
> +++ b/sound/pci/hda/patch_realtek.c
> @@ -4855,6 +4855,7 @@ enum {
>  	ALC221_FIXUP_HP_FRONT_MIC,
>  	ALC292_FIXUP_TPT460,
>  	ALC298_FIXUP_SPK_VOLUME,
> +	ALC256_FIXUP_DELL_INSPIRON_7559_SUBWOOFER,
>  };
>  
>  static const struct hda_fixup alc269_fixups[] = {
> @@ -5516,6 +5517,15 @@ static const struct hda_fixup alc269_fixups[] = {
>  		.chained = true,
>  		.chain_id = ALC298_FIXUP_DELL1_MIC_NO_PRESENCE,
>  	},
> +	[ALC256_FIXUP_DELL_INSPIRON_7559_SUBWOOFER] = {
> +		.type = HDA_FIXUP_PINS,
> +		.v.pins = (const struct hda_pintbl[]) {
> +			{ 0x1b, 0x90170151 },

What's the original value of this pin?


Takashi