Commit 778a76e2 authored by Mark Brown's avatar Mark Brown
Browse files

ASoC: Implement WM8994 DAI tristate support 



This also adds the first DAI operation for AIF3 so fill out the ID and
the ops for that too.

Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: default avatarLiam Girdwood <lrg@slimlogic.co.uk>
parent 74511020

sound/soc/codecs/wm8994.c

+38 −0
Original line number Diff line number Diff line
@@ -3332,6 +3332,36 @@ static int wm8994_aif_mute(struct snd_soc_dai *codec_dai, int mute) 
	return 0;

}



static int wm8994_set_tristate(struct snd_soc_dai *codec_dai, int tristate)

{

	struct snd_soc_codec *codec = codec_dai->codec;

	int reg, val, mask;



	switch (codec_dai->id) {

	case 1:

		reg = WM8994_AIF1_MASTER_SLAVE;

		mask = WM8994_AIF1_TRI;

		break;

	case 2:

		reg = WM8994_AIF2_MASTER_SLAVE;

		mask = WM8994_AIF2_TRI;

		break;

	case 3:

		reg = WM8994_POWER_MANAGEMENT_6;

		mask = WM8994_AIF3_TRI;

		break;

	default:

		return -EINVAL;

	}



	if (tristate)

		val = mask;

	else

		val = 0;



	return snd_soc_update_bits(codec, reg, mask, reg);

}



#define WM8994_RATES SNDRV_PCM_RATE_8000_96000



#define WM8994_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
@@ -3343,6 +3373,7 @@ static struct snd_soc_dai_ops wm8994_aif1_dai_ops = { 
	.hw_params	= wm8994_hw_params,

	.digital_mute	= wm8994_aif_mute,

	.set_pll	= wm8994_set_fll,

	.set_tristate	= wm8994_set_tristate,

};



static struct snd_soc_dai_ops wm8994_aif2_dai_ops = {
@@ -3351,6 +3382,11 @@ static struct snd_soc_dai_ops wm8994_aif2_dai_ops = { 
	.hw_params	= wm8994_hw_params,

	.digital_mute   = wm8994_aif_mute,

	.set_pll	= wm8994_set_fll,

	.set_tristate	= wm8994_set_tristate,

};



static struct snd_soc_dai_ops wm8994_aif3_dai_ops = {

	.set_tristate	= wm8994_set_tristate,

};



struct snd_soc_dai wm8994_dai[] = {
@@ -3394,6 +3430,7 @@ struct snd_soc_dai wm8994_dai[] = { 
	},

	{

		.name = "WM8994 AIF3",

		.id = 3,

		.playback = {

			.stream_name = "AIF3 Playback",

			.channels_min = 2,
@@ -3408,6 +3445,7 @@ struct snd_soc_dai wm8994_dai[] = { 
			.rates = WM8994_RATES,

			.formats = WM8994_FORMATS,

		},

		.ops = &wm8994_aif3_dai_ops,

	}

};

EXPORT_SYMBOL_GPL(wm8994_dai);