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| author | Mark Brown <broonie@kernel.org> | 2020-10-09 16:42:31 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-10-09 16:42:31 +0200 |
| commit | c890e30b069a2792a5a34e8510a7a437dd6f5b3d (patch) | |
| tree | f7fc7cb5e6fddbe4cae599b41bb39ebc349b94cd /drivers/iio | |
| parent | Merge remote-tracking branch 'asoc/for-5.9' into asoc-linus (diff) | |
| parent | ASoC: dmaengine: Document support for TX only or RX only streams (diff) | |
| download | linux-c890e30b069a2792a5a34e8510a7a437dd6f5b3d.tar.xz linux-c890e30b069a2792a5a34e8510a7a437dd6f5b3d.zip | |
Merge remote-tracking branch 'asoc/for-5.10' into asoc-next
Diffstat (limited to 'drivers/iio')
| -rw-r--r-- | drivers/iio/adc/stm32-dfsdm-adc.c | 4 | ||||
| -rw-r--r-- | drivers/iio/adc/stm32-dfsdm.h | 2 |
2 files changed, 6 insertions, 0 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; }; |