eDMA on i.MX93 platform requires the period size to be multiple of maxburst.
Signed-off-by: Chancel Liu chancel.liu@nxp.com --- sound/soc/fsl/fsl_xcvr.c | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/sound/soc/fsl/fsl_xcvr.c b/sound/soc/fsl/fsl_xcvr.c index b794158a7876..2a78243df752 100644 --- a/sound/soc/fsl/fsl_xcvr.c +++ b/sound/soc/fsl/fsl_xcvr.c @@ -22,6 +22,7 @@ struct fsl_xcvr_soc_data { const char *fw_name; bool spdif_only; + bool use_edma; };
struct fsl_xcvr { @@ -538,6 +539,16 @@ static int fsl_xcvr_startup(struct snd_pcm_substream *substream, return -EBUSY; }
+ /* + * EDMA controller needs period size to be a multiple of + * tx/rx maxburst + */ + if (xcvr->soc_data->use_edma) + snd_pcm_hw_constraint_step(substream->runtime, 0, + SNDRV_PCM_HW_PARAM_PERIOD_SIZE, + tx ? xcvr->dma_prms_tx.maxburst : + xcvr->dma_prms_rx.maxburst); + switch (xcvr->mode) { case FSL_XCVR_MODE_SPDIF: case FSL_XCVR_MODE_ARC: @@ -1207,6 +1218,7 @@ static const struct fsl_xcvr_soc_data fsl_xcvr_imx8mp_data = {
static const struct fsl_xcvr_soc_data fsl_xcvr_imx93_data = { .spdif_only = true, + .use_edma = true, };
static const struct of_device_id fsl_xcvr_dt_ids[] = {