Unverified Commit d9fbe5b0 authored by Shengjiu Wang's avatar Shengjiu Wang Committed by Mark Brown
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ASoC: fsl_sai: fix bit order for DSD format 



The DSD little endian format requires the msb first, because oldest bit
is in msb.
found this issue by testing with pipewire.

Fixes: c111c2dd ("ASoC: fsl_sai: Add PDM daifmt support")
Signed-off-by: default avatarShengjiu Wang <shengjiu.wang@nxp.com>
Link: https://patch.msgid.link/20251023064538.368850-2-shengjiu.wang@nxp.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 211ddde0

sound/soc/fsl/fsl_sai.c

+1 −2
Original line number Diff line number Diff line
@@ -353,7 +353,6 @@ static int fsl_sai_set_dai_fmt_tr(struct snd_soc_dai *cpu_dai, 
		break;

	case SND_SOC_DAIFMT_PDM:

		val_cr2 |= FSL_SAI_CR2_BCP;

		val_cr4 &= ~FSL_SAI_CR4_MF;

		sai->is_pdm_mode = true;

		break;

	case SND_SOC_DAIFMT_RIGHT_J:
@@ -638,7 +637,7 @@ static int fsl_sai_hw_params(struct snd_pcm_substream *substream, 
	val_cr5 |= FSL_SAI_CR5_WNW(slot_width);

	val_cr5 |= FSL_SAI_CR5_W0W(slot_width);



	if (sai->is_lsb_first || sai->is_pdm_mode)

	if (sai->is_lsb_first)

		val_cr5 |= FSL_SAI_CR5_FBT(0);

	else

		val_cr5 |= FSL_SAI_CR5_FBT(word_width - 1);