diff options
| author | Adrian Alonso <adrian.alonso@nxp.com> | 2020-04-01 20:05:47 -0500 |
|---|---|---|
| committer | Adrian Alonso <adrian.alonso@nxp.com> | 2020-05-12 13:20:34 -0500 |
| commit | 7238c03e567afa780bebf1701ce9031a475ca6eb (patch) | |
| tree | ff812302cb8dbf2dc9d33b266a275ac87e7554f9 /sound/soc/fsl/imx-pdm.c | |
| parent | 710953489d1abc526f5e45f566cef9f0a3439bd0 (diff) | |
MLK-23921: sound: soc: imx-pdm: update driver constrains
Update drivers constrains, limit sample rates to
[8Khz - 64Khz] and up to 8 channels.
Use SND_SOC_DAIFMT_PDM format type and remove
tdm slot settings to allow capture from multiple
SAI_RxD pins.
Reviewed-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Signed-off-by: Adrian Alonso <adrian.alonso@nxp.com>
Diffstat (limited to 'sound/soc/fsl/imx-pdm.c')
| -rw-r--r-- | sound/soc/fsl/imx-pdm.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/sound/soc/fsl/imx-pdm.c b/sound/soc/fsl/imx-pdm.c index 9e61689d0278..3cca30131981 100644 --- a/sound/soc/fsl/imx-pdm.c +++ b/sound/soc/fsl/imx-pdm.c @@ -23,12 +23,16 @@ struct imx_pdm_data { unsigned int decimation; }; -static u32 imx_pdm_mic_rates[] = { 8000, 16000, 32000, 48000, 64000 }; +static const unsigned int imx_pdm_mic_rates[] = { + 8000, 11025, 12000, 16000, + 22050, 24000, 32000, 44100, + 48000, 64000, +}; static struct snd_pcm_hw_constraint_list imx_pdm_mic_rate_constrains = { .count = ARRAY_SIZE(imx_pdm_mic_rates), .list = imx_pdm_mic_rates, }; -static u32 imx_pdm_mic_channels[] = { 1 }; +static unsigned int imx_pdm_mic_channels[] = { 1, 2, 4, 6, 8 }; static struct snd_pcm_hw_constraint_list imx_pdm_mic_channels_constrains = { .count = ARRAY_SIZE(imx_pdm_mic_channels), .list = imx_pdm_mic_channels, @@ -70,14 +74,12 @@ static int imx_pdm_mic_hw_params(struct snd_pcm_substream *substream, int ret; /* set cpu dai format configuration */ - ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A | + ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_PDM | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS); if (ret) { dev_err(card->dev, "fail to set cpu dai fmt: %d\n", ret); return ret; } - /* set tdm slots only one for now */ - snd_soc_dai_set_tdm_slot(cpu_dai, 0, 0, 1, 32); /* Set clock out */ ret = snd_soc_dai_set_bclk_ratio(cpu_dai, data->decimation); if (ret) { |