Unverified Commit 77a7a6e9 authored by Chancel Liu's avatar Chancel Liu Committed by Mark Brown
Browse files

ASoC: fsl_micfil: Add support when using eDMA 



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: default avatarChancel Liu <chancel.liu@nxp.com>
Acked-by: default avatarShengjiu Wang <shengjiu.wang@gmail.com>
Link: https://lore.kernel.org/r/20221028082750.991822-4-chancel.liu@nxp.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent a10a5254

sound/soc/fsl/fsl_micfil.c

+4 −0
Original line number Diff line number Diff line
@@ -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;

}