diff options
| -rw-r--r-- | drivers/iio/adc/stm32-dfsdm-adc.c | 4 | ||||
| -rw-r--r-- | drivers/iio/adc/stm32-dfsdm.h | 2 | ||||
| -rw-r--r-- | sound/soc/stm/stm32_adfsdm.c | 8 |
3 files changed, 9 insertions, 5 deletions
diff --git a/drivers/iio/adc/stm32-dfsdm-adc.c b/drivers/iio/adc/stm32-dfsdm-adc.c index 5e10fb4f3704..b7e9ef1a6eec 100644 --- a/drivers/iio/adc/stm32-dfsdm-adc.c +++ b/drivers/iio/adc/stm32-dfsdm-adc.c @@ -293,6 +293,7 @@ static int stm32_dfsdm_compute_osrs(struct stm32_dfsdm_filter *fl, max >>= flo->rshift; } flo->max = (s32)max; + flo->bits = bits; pr_debug("%s: fast %d, fosr %d, iosr %d, res 0x%llx/%d bits, rshift %d, lshift %d\n", __func__, fast, flo->fosr, flo->iosr, @@ -476,6 +477,9 @@ static int stm32_dfsdm_channels_configure(struct iio_dev *indio_dev, if (!flo->res) return -EINVAL; + dev_dbg(&indio_dev->dev, "Samples actual resolution: %d bits", + min(flo->bits, (u32)DFSDM_DATA_RES - 1)); + for_each_set_bit(bit, &adc->smask, sizeof(adc->smask) * BITS_PER_BYTE) { chan = indio_dev->channels + bit; diff --git a/drivers/iio/adc/stm32-dfsdm.h b/drivers/iio/adc/stm32-dfsdm.h index 5dbdae4ed881..4afc1f528b78 100644 --- a/drivers/iio/adc/stm32-dfsdm.h +++ b/drivers/iio/adc/stm32-dfsdm.h @@ -249,6 +249,7 @@ enum stm32_dfsdm_sinc_order { * @rshift: output sample right shift (hardware shift) * @lshift: output sample left shift (software shift) * @res: output sample resolution + * @bits: output sample resolution in bits * @max: output sample maximum positive value */ struct stm32_dfsdm_filter_osr { @@ -257,6 +258,7 @@ struct stm32_dfsdm_filter_osr { unsigned int rshift; unsigned int lshift; u64 res; + u32 bits; s32 max; }; diff --git a/sound/soc/stm/stm32_adfsdm.c b/sound/soc/stm/stm32_adfsdm.c index ec27c13af04f..c4031988f981 100644 --- a/sound/soc/stm/stm32_adfsdm.c +++ b/sound/soc/stm/stm32_adfsdm.c @@ -47,9 +47,6 @@ static const struct snd_pcm_hardware stm32_adfsdm_pcm_hw = { SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_PAUSE, .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE, - .rate_min = 8000, - .rate_max = 32000, - .channels_min = 1, .channels_max = 1, @@ -143,8 +140,9 @@ static const struct snd_soc_dai_driver stm32_adfsdm_dai = { .channels_max = 1, .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE, - .rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 | - SNDRV_PCM_RATE_32000), + .rates = SNDRV_PCM_RATE_CONTINUOUS, + .rate_min = 8000, + .rate_max = 48000, }, .ops = &stm32_adfsdm_dai_ops, }; |