diff options
| author | olivier moysan <olivier.moysan@st.com> | 2017-11-06 16:18:52 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2017-11-06 15:45:36 +0000 |
| commit | 9036e4acc81700a51e5f42820ba4570bea9b6f48 (patch) | |
| tree | 59b3f8202dd6e57ec7dd5ee0c55b3f03251fe2f5 | |
| parent | 7e751e375ae7218f8b49f0b47e855cf9bbbdbcf9 (diff) | |
| download | linux-9036e4acc81700a51e5f42820ba4570bea9b6f48.tar.bz2 | |
ASoC: stm32: spdifrx: fix 16 bits capture
Change DMA bus width to manage properly 16 bits packed format.
Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | sound/soc/stm/stm32_spdifrx.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/sound/soc/stm/stm32_spdifrx.c b/sound/soc/stm/stm32_spdifrx.c index 84cc5678beba..d7dbe84d5eeb 100644 --- a/sound/soc/stm/stm32_spdifrx.c +++ b/sound/soc/stm/stm32_spdifrx.c @@ -750,17 +750,21 @@ static int stm32_spdifrx_hw_params(struct snd_pcm_substream *substream, switch (data_size) { case 16: fmt = SPDIFRX_DRFMT_PACKED; - spdifrx->dma_params.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES; break; case 32: fmt = SPDIFRX_DRFMT_LEFT; - spdifrx->dma_params.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; break; default: dev_err(&spdifrx->pdev->dev, "Unexpected data format\n"); return -EINVAL; } + /* + * Set buswidth to 4 bytes for all data formats. + * Packed format: transfer 2 x 2 bytes samples + * Left format: transfer 1 x 3 bytes samples + 1 dummy byte + */ + spdifrx->dma_params.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; snd_soc_dai_init_dma_data(cpu_dai, NULL, &spdifrx->dma_params); return regmap_update_bits(spdifrx->regmap, STM32_SPDIFRX_CR, |