ASoc: Intel: Atom: add deep buffer definitions for atom platforms

Add definitions for MERR_DPCM_DEEP_BUFFER AND PIPE_MEDIA3_IN
Add relevant cpu-dai and dai link names

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

arch/x86/include/asm/platform_sst_audio.h

@@ -55,6 +55,7 @@ enum sst_audio_device_id_mrfld {
 	PIPE_MEDIA0_IN = 0x8F,
 	PIPE_MEDIA1_IN = 0x90,
 	PIPE_MEDIA2_IN = 0x91,
+	PIPE_MEDIA3_IN = 0x9C,
 	PIPE_RSVD = 0xFF,
 };
 

sound/soc/intel/atom/sst-atom-controls.c

@@ -1109,6 +1109,7 @@ static const struct snd_soc_dapm_route intercon[] = {
 	{"media0_in", NULL, "Compress Playback"},
 	{"media1_in", NULL, "Headset Playback"},
 	{"media2_in", NULL, "pcm0_out"},
+	{"media3_in", NULL, "Deepbuffer Playback"},
 
 	{"media0_out mix 0", "media0_in Switch", "media0_in"},
 	{"media0_out mix 0", "media1_in Switch", "media1_in"},

sound/soc/intel/atom/sst-atom-controls.h

@@ -28,6 +28,7 @@
 
 enum {
 	MERR_DPCM_AUDIO = 0,
+	MERR_DPCM_DEEP_BUFFER,
 	MERR_DPCM_COMPR,
 };
 

sound/soc/intel/atom/sst-mfld-platform-pcm.c

@@ -98,6 +98,7 @@ static struct sst_dev_stream_map dpcm_strm_map[] = {
 	{MERR_DPCM_AUDIO, 0, SNDRV_PCM_STREAM_PLAYBACK, PIPE_MEDIA1_IN, SST_TASK_ID_MEDIA, 0},
 	{MERR_DPCM_COMPR, 0, SNDRV_PCM_STREAM_PLAYBACK, PIPE_MEDIA0_IN, SST_TASK_ID_MEDIA, 0},
 	{MERR_DPCM_AUDIO, 0, SNDRV_PCM_STREAM_CAPTURE, PIPE_PCM1_OUT, SST_TASK_ID_MEDIA, 0},
+	{MERR_DPCM_DEEP_BUFFER, 0, SNDRV_PCM_STREAM_PLAYBACK, PIPE_MEDIA3_IN, SST_TASK_ID_MEDIA, 0},
 };
 
 static int sst_media_digital_mute(struct snd_soc_dai *dai, int mute, int stream)
@@ -510,6 +511,17 @@ static struct snd_soc_dai_driver sst_platform_dai[] = {
 		.formats = SNDRV_PCM_FMTBIT_S16_LE,
 	},
 },
+{
+	.name = "deepbuffer-cpu-dai",
+	.ops = &sst_media_dai_ops,
+	.playback = {
+		.stream_name = "Deepbuffer Playback",
+		.channels_min = SST_STEREO,
+		.channels_max = SST_STEREO,
+		.rates = SNDRV_PCM_RATE_44100|SNDRV_PCM_RATE_48000,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE,
+	},
+},
 {
 	.name = "compress-cpu-dai",
 	.compress_new = snd_soc_new_compress,