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Message-Id: <20250328085744.1893434-3-shengjiu.wang@nxp.com>
Date: Fri, 28 Mar 2025 16:57:42 +0800
From: Shengjiu Wang <shengjiu.wang@....com>
To: shengjiu.wang@...il.com,
Xiubo.Lee@...il.com,
festevam@...il.com,
nicoleotsuka@...il.com,
lgirdwood@...il.com,
broonie@...nel.org,
perex@...ex.cz,
tiwai@...e.com,
linux-sound@...r.kernel.org,
linuxppc-dev@...ts.ozlabs.org,
linux-kernel@...r.kernel.org
Subject: [PATCH 2/4] ASoC: fsl_sai: add xlate_tdm_slot_mask() callback
With DPCM case, for example ASRC->SAI->AMIX, the SAI can be codec dai
device in backend, but __soc_pcm_hw_params() will get the tdm_mask
for channel constraint, tdm_mask is set by snd_soc_dai_set_tdm_slot()
from slot number, but SAI supports flexible channel number with fixed slot
number, so add an empty xlate_tdm_slot_mask() callback to avoid the
channel constraint in __soc_pcm_hw_params().
Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>
---
sound/soc/fsl/fsl_sai.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c
index bcb46a0b5e68..9a450fc86dba 100644
--- a/sound/soc/fsl/fsl_sai.c
+++ b/sound/soc/fsl/fsl_sai.c
@@ -174,6 +174,13 @@ static int fsl_sai_set_dai_tdm_slot(struct snd_soc_dai *cpu_dai, u32 tx_mask,
return 0;
}
+static int fsl_sai_xlate_tdm_slot_mask(unsigned int slots,
+ unsigned int *tx_mask, unsigned int *rx_mask)
+{
+ /* Leave it empty, don't change the value of tx_mask and rx_mask */
+ return 0;
+}
+
static int fsl_sai_set_dai_bclk_ratio(struct snd_soc_dai *dai,
unsigned int ratio)
{
@@ -933,6 +940,7 @@ static const struct snd_soc_dai_ops fsl_sai_pcm_dai_tx_ops = {
.set_sysclk = fsl_sai_set_dai_sysclk,
.set_fmt = fsl_sai_set_dai_fmt_tx,
.set_tdm_slot = fsl_sai_set_dai_tdm_slot,
+ .xlate_tdm_slot_mask = fsl_sai_xlate_tdm_slot_mask,
.hw_params = fsl_sai_hw_params,
.hw_free = fsl_sai_hw_free,
.trigger = fsl_sai_trigger,
@@ -945,6 +953,7 @@ static const struct snd_soc_dai_ops fsl_sai_pcm_dai_rx_ops = {
.set_sysclk = fsl_sai_set_dai_sysclk,
.set_fmt = fsl_sai_set_dai_fmt_rx,
.set_tdm_slot = fsl_sai_set_dai_tdm_slot,
+ .xlate_tdm_slot_mask = fsl_sai_xlate_tdm_slot_mask,
.hw_params = fsl_sai_hw_params,
.hw_free = fsl_sai_hw_free,
.trigger = fsl_sai_trigger,
--
2.34.1
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