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Unverified Commit 9036e4ac authored by olivier moysan's avatar olivier moysan Committed by Mark Brown
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ASoC: stm32: spdifrx: fix 16 bits capture 



Change DMA bus width to manage properly 16 bits packed format.

Signed-off-by: default avatarOlivier Moysan <olivier.moysan@st.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 7e751e37

sound/soc/stm/stm32_spdifrx.c

+6 −2
Original line number Diff line number Diff line
@@ -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,