[PATCH v1 1/1] ASoC: qcom: sc7180: fix 32 bit format for adau7002

[xuyuqing]

the microphone is attached to external codec(adau7002)
instead of rt5682.We need to always use 32 bit format on sc7180
to meet the clock requirement of adau7002:
The ADAU7002 requires a BCLK rate 
that is a minimum of 64× the LRCLK sample rate

Signed-off-by: xuyuqing <xuyuqing at huaqin.corp-partner.google.com>
---
 sound/soc/qcom/sc7180.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/soc/qcom/sc7180.c b/sound/soc/qcom/sc7180.c
index de70fa792aea..768566bb57a5 100644
--- a/sound/soc/qcom/sc7180.c
+++ b/sound/soc/qcom/sc7180.c
@@ -245,6 +245,7 @@ static int sc7180_adau7002_snd_startup(struct snd_pcm_substream *substream)
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+	struct snd_pcm_runtime *runtime = substream->runtime;
 
 	switch (cpu_dai->id) {
 	case MI2S_PRIMARY:
@@ -252,6 +253,8 @@ static int sc7180_adau7002_snd_startup(struct snd_pcm_substream *substream)
 				    SND_SOC_DAIFMT_CBS_CFS |
 				    SND_SOC_DAIFMT_NB_NF |
 				    SND_SOC_DAIFMT_I2S);
+		runtime->hw.formats = SNDRV_PCM_FMTBIT_S32_LE;
+		snd_pcm_hw_constraint_msbits(runtime, 0, 32, 32);
 
 		break;
 	case MI2S_SECONDARY:
-- 
2.25.1