[PATCH RFC 2/6] ASoC: qcom: sdm845: use DSP_A format for TDM codec DAIs
From: David Heidelberg via B4 Relay
Date: Sun Jul 05 2026 - 16:11:07 EST
From: David Heidelberg <david@xxxxxxx>
Before the DSP_B only worked because the only close-to-mainline consumer
cs35l36 codec was patched to map both DSP_A and DSP_B to the same
hardware register value (asp_fmt = 0), which is inherently DSP_A timing.
Use the right codec (DSP_A) which works as expected.
Signed-off-by: David Heidelberg <david@xxxxxxx>
---
sound/soc/qcom/sdm845.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/qcom/sdm845.c b/sound/soc/qcom/sdm845.c
index edd2cc7a1c74f..9de3282bda4be 100644
--- a/sound/soc/qcom/sdm845.c
+++ b/sound/soc/qcom/sdm845.c
@@ -380,17 +380,17 @@ static int sdm845_snd_startup(struct snd_pcm_substream *substream)
case QUATERNARY_TDM_RX_0:
case QUATERNARY_TDM_TX_0:
if (++(data->quat_tdm_clk_count) == 1) {
snd_soc_dai_set_sysclk(cpu_dai,
Q6AFE_LPASS_CLK_ID_QUAD_TDM_IBIT,
TDM_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK);
}
- codec_dai_fmt |= SND_SOC_DAIFMT_IB_NF | SND_SOC_DAIFMT_DSP_B;
+ codec_dai_fmt |= SND_SOC_DAIFMT_IB_NF | SND_SOC_DAIFMT_DSP_A;
for_each_rtd_codec_dais(rtd, j, codec_dai) {
if (!strcmp(codec_dai->component->name_prefix,
"Left")) {
ret = snd_soc_dai_set_fmt(
codec_dai, codec_dai_fmt);
if (ret < 0) {
--
2.53.0