[alsa-devel] [PATCH] Add VREF powerdown sequence for another board

[Takashi Iwai]

At Mon, 06 Apr 2009 09:30:46 -0400,
Matthew Ranostay wrote:
> 
> Add powerdown sequence for VREF using a shared jack when the headphone is present and
> the microphone isn't on.
> 
> Signed-off-by: Matthew Ranostay <mranostay at embeddedalley.com>

Applied now.  Thanks.

Takashi

> ---
>  sound/pci/hda/patch_sigmatel.c |   16 ++++++++++++++++
>  1 files changed, 16 insertions(+), 0 deletions(-)
> 
> diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
> index b5e108a..a6fc257 100644
> --- a/sound/pci/hda/patch_sigmatel.c
> +++ b/sound/pci/hda/patch_sigmatel.c
> @@ -4413,6 +4413,22 @@ static void stac92xx_unsol_event(struct hda_codec *codec, unsigned int res)
>  		if (spec->num_pwrs > 0)
>  			stac92xx_pin_sense(codec, event->nid);
>  		stac92xx_report_jack(codec, event->nid);
> +
> +		switch (codec->subsystem_id) {
> +		case 0x103c308f:
> +			if (event->nid == 0xb) {
> +				int pin = AC_PINCTL_IN_EN;
> +
> +				if (get_pin_presence(codec, 0xa)
> +						&& get_pin_presence(codec, 0xb))
> +					pin |= AC_PINCTL_VREF_80;
> +				if (!get_pin_presence(codec, 0xb))
> +					pin |= AC_PINCTL_VREF_80;
> +
> +				/* toggle VREF state based on mic + hp pin status */
> +				stac92xx_auto_set_pinctl(codec, 0x0a, pin);
> +			}
> +		}
>  		break;
>  	case STAC_VREF_EVENT:
>  		data = snd_hda_codec_read(codec, codec->afg, 0,
> -- 
> 1.5.6.3
>