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ASoC: Intel: Add DMIC 4 channel support for bxt machine 

Like Skylake, we can support  4 channel for DMIC, so add
hw_params and constraints in the bxt-rt298 machine

While at it, also add codec1 pipe for speaker playback.

Signed-off-by: Senthilnathan Veppur <senthilnathanx.veppur@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Senthilnathan Veppur 2016-06-13 17:58:58 +05:30 committed by Mark Brown
parent 7b96144df1
commit bfcdc6d190
1 changed files with 66 additions and 0 deletions
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66
sound/soc/intel/boards/bxt_rt298.c
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@ -33,6 +33,7 @@ enum {
BXT_DPCM_AUDIO_PB = 0,
BXT_DPCM_AUDIO_CP,
BXT_DPCM_AUDIO_REF_CP,
BXT_DPCM_AUDIO_DMIC_CP,
BXT_DPCM_AUDIO_HDMI1_PB,
BXT_DPCM_AUDIO_HDMI2_PB,
BXT_DPCM_AUDIO_HDMI3_PB,
@ -88,6 +89,7 @@ static const struct snd_soc_dapm_route broxton_rt298_map[] = {
/* CODEC BE connections */
{ "AIF1 Playback", NULL, "ssp5 Tx"},
{ "ssp5 Tx", NULL, "codec0_out"},
{ "ssp5 Tx", NULL, "codec1_out"},
{ "codec0_in", NULL, "ssp5 Rx" },
{ "ssp5 Rx", NULL, "AIF1 Capture" },
@ -169,6 +171,55 @@ static struct snd_soc_ops broxton_rt298_ops = {
.hw_params = broxton_rt298_hw_params,
};
static unsigned int rates[] = {
48000,
};
static struct snd_pcm_hw_constraint_list constraints_rates = {
.count = ARRAY_SIZE(rates),
.list = rates,
.mask = 0,
};
static int broxton_dmic_fixup(struct snd_soc_pcm_runtime *rtd,
struct snd_pcm_hw_params *params)
{
struct snd_interval *channels = hw_param_interval(params,
SNDRV_PCM_HW_PARAM_CHANNELS);
if (params_channels(params) == 2)
channels->min = channels->max = 2;
else
channels->min = channels->max = 4;
return 0;
}
static unsigned int channels_dmic[] = {
2, 4,
};
static struct snd_pcm_hw_constraint_list constraints_dmic_channels = {
.count = ARRAY_SIZE(channels_dmic),
.list = channels_dmic,
.mask = 0,
};
static int broxton_dmic_startup(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
runtime->hw.channels_max = 4;
snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
&constraints_dmic_channels);
return snd_pcm_hw_constraint_list(substream->runtime, 0,
SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
}
static struct snd_soc_ops broxton_dmic_ops = {
.startup = broxton_dmic_startup,
};
/* broxton digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link broxton_rt298_dais[] = {
/* Front End DAI links */
@ -211,6 +262,20 @@ static struct snd_soc_dai_link broxton_rt298_dais[] = {
.nonatomic = 1,
.dynamic = 1,
},
[BXT_DPCM_AUDIO_DMIC_CP]
{
.name = "Bxt Audio DMIC cap",
.stream_name = "dmiccap",
.cpu_dai_name = "DMIC Pin",
.codec_name = "snd-soc-dummy",
.codec_dai_name = "snd-soc-dummy-dai",
.platform_name = "0000:00:0e.0",
.init = NULL,
.dpcm_capture = 1,
.nonatomic = 1,
.dynamic = 1,
.ops = &broxton_dmic_ops,
},
[BXT_DPCM_AUDIO_HDMI1_PB]
{
.name = "Bxt HDMI Port1",
@ -276,6 +341,7 @@ static struct snd_soc_dai_link broxton_rt298_dais[] = {
.codec_name = "dmic-codec",
.codec_dai_name = "dmic-hifi",
.platform_name = "0000:00:0e.0",
.be_hw_params_fixup = broxton_dmic_fixup,
.ignore_suspend = 1,
.dpcm_capture = 1,
.no_pcm = 1,