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Commit c1aee1d8 authored by Sathyanarayana Nujella's avatar Sathyanarayana Nujella Committed by Mark Brown
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ASoC: Intel: update bxt_da7219_max98357a to support quad ch dmic capture 



This patch updates FE channel constraints & BE fixup to support
quad channel DMIC capture.
DMIC pin's BE fixup is configured based on channel input, i.e.
either stereo or quad.

Signed-off-by: default avatarSathyanarayana Nujella <sathyanarayana.nujella@intel.com>
Signed-off-by: default avatarHarsha Priya <harshapriya.n@intel.com>
Acked-by: default avatarVinod Koul <vinod.koul@intel.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent da91723c

sound/soc/intel/boards/bxt_da7219_max98357a.c

+17 −3
Original line number Diff line number Diff line
@@ -30,6 +30,7 @@ 
#define BXT_DIALOG_CODEC_DAI	"da7219-hifi"

#define BXT_MAXIM_CODEC_DAI	"HiFi"

#define DUAL_CHANNEL		2

#define QUAD_CHANNEL		4



static struct snd_soc_jack broxton_headset;
@@ -182,6 +183,16 @@ static struct snd_pcm_hw_constraint_list constraints_channels = { 
	.mask = 0,

};



static unsigned int channels_quad[] = {

	QUAD_CHANNEL,

};



static struct snd_pcm_hw_constraint_list constraints_channels_quad = {

	.count = ARRAY_SIZE(channels_quad),

	.list = channels_quad,

	.mask = 0,

};



static int bxt_fe_startup(struct snd_pcm_substream *substream)

{

	struct snd_pcm_runtime *runtime = substream->runtime;
@@ -258,7 +269,10 @@ static int broxton_dmic_fixup(struct snd_soc_pcm_runtime *rtd, 
{

	struct snd_interval *channels = hw_param_interval(params,

						SNDRV_PCM_HW_PARAM_CHANNELS);

	channels->min = channels->max = DUAL_CHANNEL;

	if (params_channels(params) == 2)

		channels->min = channels->max = 2;

	else

		channels->min = channels->max = 4;



	return 0;

}
@@ -267,9 +281,9 @@ static int broxton_dmic_startup(struct snd_pcm_substream *substream) 
{

	struct snd_pcm_runtime *runtime = substream->runtime;



	runtime->hw.channels_max = DUAL_CHANNEL;

	runtime->hw.channels_min = runtime->hw.channels_max = QUAD_CHANNEL;

	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,

			&constraints_channels);

			&constraints_channels_quad);



	return snd_pcm_hw_constraint_list(substream->runtime, 0,

			SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);