On i.MX93 platform MICFIL uses eDMA. The maxburst should be set to the
number of channels in eDMA multiple FIFO mode.
Signed-off-by: Chancel Liu <[email protected]>
---
sound/soc/fsl/fsl_micfil.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c
index b8a9504441df..22e75c14cac4 100644
--- a/sound/soc/fsl/fsl_micfil.c
+++ b/sound/soc/fsl/fsl_micfil.c
@@ -63,6 +63,7 @@ struct fsl_micfil_soc_data {
unsigned int fifo_depth;
unsigned int dataline;
bool imx;
+ bool use_edma;
u64 formats;
};
@@ -88,6 +89,7 @@ static struct fsl_micfil_soc_data fsl_micfil_imx93 = {
.fifo_depth = 32,
.dataline = 0xf,
.formats = SNDRV_PCM_FMTBIT_S32_LE,
+ .use_edma = true,
};
static const struct of_device_id fsl_micfil_dt_ids[] = {
@@ -690,6 +692,8 @@ static int fsl_micfil_hw_params(struct snd_pcm_substream *substream,
micfil->sdmacfg.n_fifos_src = channels;
micfil->sdmacfg.sw_done = true;
micfil->dma_params_rx.maxburst = channels * MICFIL_DMA_MAXBURST_RX;
+ if (micfil->soc->use_edma)
+ micfil->dma_params_rx.maxburst = channels;
return 0;
}
--
2.25.1