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ASoC: Intel: boards: configure DMIC for machine sklnau8825max 

This machine driver can support 2 or 4 DMIC configuration, so
apply the ch constraint according to driver pdata.

Signed-off-by: Yong Zhi <yong.zhi@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Yong Zhi 2016-05-31 10:24:03 -05:00 committed by Mark Brown
parent cfa12367f8
commit 05282c7751
1 changed files with 22 additions and 3 deletions
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25
sound/soc/intel/boards/skl_nau88l25_max98357a.c
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@ -23,12 +23,15 @@
#include <sound/soc.h>
#include "../../codecs/nau8825.h"
#include "../../codecs/hdac_hdmi.h"
#include "../skylake/skl.h"
#define SKL_NUVOTON_CODEC_DAI "nau8825-hifi"
#define SKL_MAXIM_CODEC_DAI "HiFi"
#define DMIC_CH(p) p->list[p->count-1]
static struct snd_soc_jack skylake_headset;
static struct snd_soc_card skylake_audio_card;
static const struct snd_pcm_hw_constraint_list *dmic_constraints;
struct skl_hdmi_pcm {
struct list_head head;
@ -339,7 +342,7 @@ static int skylake_dmic_fixup(struct snd_soc_pcm_runtime *rtd,
struct snd_interval *channels = hw_param_interval(params,
SNDRV_PCM_HW_PARAM_CHANNELS);
if (params_channels(params) == 2)
if (params_channels(params) == 2 || DMIC_CH(dmic_constraints) == 2)
channels->min = channels->max = 2;
else
channels->min = channels->max = 4;
@ -357,13 +360,23 @@ static struct snd_pcm_hw_constraint_list constraints_dmic_channels = {
.mask = 0,
};
static const unsigned int dmic_2ch[] = {
2,
};
static const struct snd_pcm_hw_constraint_list constraints_dmic_2ch = {
.count = ARRAY_SIZE(dmic_2ch),
.list = dmic_2ch,
.mask = 0,
};
static int skylake_dmic_startup(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
runtime->hw.channels_max = 4;
runtime->hw.channels_max = DMIC_CH(dmic_constraints);
snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
&constraints_dmic_channels);
dmic_constraints);
return snd_pcm_hw_constraint_list(substream->runtime, 0,
SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
@ -624,6 +637,7 @@ static struct snd_soc_card skylake_audio_card = {
static int skylake_audio_probe(struct platform_device *pdev)
{
struct skl_nau8825_private *ctx;
struct skl_machine_pdata *pdata;
ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_ATOMIC);
if (!ctx)
@ -634,6 +648,11 @@ static int skylake_audio_probe(struct platform_device *pdev)
skylake_audio_card.dev = &pdev->dev;
snd_soc_card_set_drvdata(&skylake_audio_card, ctx);
pdata = dev_get_drvdata(&pdev->dev);
if (pdata)
dmic_constraints = pdata->dmic_num == 2 ?
&constraints_dmic_2ch : &constraints_dmic_channels;
return devm_snd_soc_register_card(&pdev->dev, &skylake_audio_card);
}