From: Mac Chiang mac.chiang@intel.com

create dai link in kbl_da7219_max98357a driver for wake on voice functionality.

changes picked from broonie's tree commit 0c7941a63a0f ("ASoC: Intel: Skylake: Use refcap device for mono recording") commit 2154be362c90 ("ASoc: Intel: boards: Add WOV as sink for nau88l25_ssm4567 machine")

Signed-off-by: Mac Chiang mac.chiang@intel.com --- sound/soc/intel/boards/kbl_da7219_max98357a.c | 35 +++++++++++++++++++++++++++ 1 file changed, 35 insertions(+)

diff --git a/sound/soc/intel/boards/kbl_da7219_max98357a.c b/sound/soc/intel/boards/kbl_da7219_max98357a.c index e84baaf..c332a32 100644 --- a/sound/soc/intel/boards/kbl_da7219_max98357a.c +++ b/sound/soc/intel/boards/kbl_da7219_max98357a.c @@ -45,6 +45,7 @@ struct kbl_codec_private { enum { KBL_DPCM_AUDIO_PB = 0, KBL_DPCM_AUDIO_CP, + KBL_DPCM_AUDIO_REF_CP, KBL_DPCM_AUDIO_DMIC_CP, KBL_DPCM_AUDIO_HDMI1_PB, KBL_DPCM_AUDIO_HDMI2_PB, @@ -349,6 +350,27 @@ static const unsigned int ch_mono[] = { 1, };

+static const struct snd_pcm_hw_constraint_list constraints_refcap = { + .count = ARRAY_SIZE(ch_mono), + .list = ch_mono, +}; + +static int kabylake_refcap_startup(struct snd_pcm_substream *substream) +{ + substream->runtime->hw.channels_max = 1; + snd_pcm_hw_constraint_list(substream->runtime, 0, + SNDRV_PCM_HW_PARAM_CHANNELS, + &constraints_refcap); + + return snd_pcm_hw_constraint_list(substream->runtime, 0, + SNDRV_PCM_HW_PARAM_RATE, + &constraints_16000); +} + +static struct snd_soc_ops skylaye_refcap_ops = { + .startup = kabylake_refcap_startup, +}; + /* kabylake digital audio interface glue - connects codec <--> CPU */ static struct snd_soc_dai_link kabylake_dais[] = { /* Front End DAI links */ @@ -380,6 +402,19 @@ static struct snd_soc_dai_link kabylake_dais[] = { SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, .dpcm_capture = 1, }, + [KBL_DPCM_AUDIO_REF_CP] = { + .name = "Kbl Audio Reference cap", + .stream_name = "Wake on Voice", + .cpu_dai_name = "Reference Pin", + .codec_name = "snd-soc-dummy", + .codec_dai_name = "snd-soc-dummy-dai", + .platform_name = "0000:00:1f.3", + .init = NULL, + .dpcm_capture = 1, + .nonatomic = 1, + .dynamic = 1, + .ops = &skylaye_refcap_ops, + }, [KBL_DPCM_AUDIO_DMIC_CP] = { .name = "Kbl Audio DMIC cap", .stream_name = "dmiccap",