system/linux
system/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux synced 2024-10-16 16:29:20 +00:00
Code Issues Packages Projects Releases Wiki Activity

ASoC: fsl_xcvr: Add constraints of period size while using eDMA

Browse source 
eDMA on i.MX93 platform requires the period size to be multiple of
maxburst.

Signed-off-by: Chancel Liu <chancel.liu@nxp.com>
Acked-by: Shengjiu Wang <shengjiu.wang@gmail.com>
Link: https://lore.kernel.org/r/20230104023953.2973362-4-chancel.liu@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Chancel Liu 2023-01-04 10:39:53 +08:00 committed by Mark Brown
parent e240b9329a
commit 1760df5b7e
No known key found for this signature in database
GPG key ID: 24D68B725D5487D0
1 changed files with 12 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
sound/soc/fsl/fsl_xcvr.c
View file

@ -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[] = {