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 Signed-off-by: Vamshi Krishna Gopal vamshi.krishna.gopal@intel.com Tested-by: Kaiyen Chang kaiyen.chang@intel.corp-partner.google.com Tested-by: luke yang luke_yang@compal.corp-partner.google.com Tested-by: Grace Kao grace.kao@intel.com Tested-by: Kaiyen Chang kaiyen.chang@intel.com Reviewed-by: Cheng-Yi Chiang cychiang@chromium.org --- sound/soc/intel/boards/kbl_da7219_max98357a.c | 48 +++++++++++++++++++ 1 file changed, 48 insertions(+)
diff --git a/sound/soc/intel/boards/kbl_da7219_max98357a.c b/sound/soc/intel/boards/kbl_da7219_max98357a.c index 5c371bb01313..534ee111e6b2 100644 --- a/sound/soc/intel/boards/kbl_da7219_max98357a.c +++ b/sound/soc/intel/boards/kbl_da7219_max98357a.c @@ -44,6 +44,7 @@ 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, @@ -339,12 +340,49 @@ static struct snd_soc_ops kabylake_dmic_ops = { .startup = kabylake_dmic_startup, };
+static unsigned int rates_16000[] = { + 16000, +}; + +static const struct snd_pcm_hw_constraint_list constraints_16000 = { + .count = ARRAY_SIZE(rates_16000), + .list = rates_16000, +}; + +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 skylake_refcap_ops = { + .startup = kabylake_refcap_startup, +}; + SND_SOC_DAILINK_DEF(dummy, DAILINK_COMP_ARRAY(COMP_DUMMY()));
SND_SOC_DAILINK_DEF(system, DAILINK_COMP_ARRAY(COMP_CPU("System Pin")));
+SND_SOC_DAILINK_DEF(reference, + DAILINK_COMP_ARRAY(COMP_CPU("Reference Pin"))); + SND_SOC_DAILINK_DEF(dmic, DAILINK_COMP_ARRAY(COMP_CPU("DMIC Pin")));
@@ -419,6 +457,16 @@ static struct snd_soc_dai_link kabylake_dais[] = { .ops = &kabylake_da7219_fe_ops, SND_SOC_DAILINK_REG(system, dummy, platform), }, + [KBL_DPCM_AUDIO_REF_CP] = { + .name = "Kbl Audio Reference cap", + .stream_name = "Wake on Voice", + .init = NULL, + .dpcm_capture = 1, + .nonatomic = 1, + .dynamic = 1, + .ops = &skylake_refcap_ops, + SND_SOC_DAILINK_REG(reference, dummy, platform), + }, [KBL_DPCM_AUDIO_DMIC_CP] = { .name = "Kbl Audio DMIC cap", .stream_name = "dmiccap",