From 2495ba26e838176c3b572b2b1592d75b4b963692 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Thu, 14 Apr 2022 18:22:40 +0200 Subject: [PATCH] ASoC: fsl_micfil: add multi fifo support The micfil hardware provides the microphone data on multiple successive FIFO registers, one register per stereo pair. Also to work properly the SDMA_DONE0_CONFIG_DONE_SEL bit in the SDMA engines SDMA_DONE0_CONFIG register must be set. This patch provides the necessary information to the SDMA engine driver. Signed-off-by: Sascha Hauer Acked-by: Shengjiu Wang Link: https://lore.kernel.org/r/20220414162249.3934543-13-s.hauer@pengutronix.de Signed-off-by: Mark Brown --- sound/soc/fsl/fsl_micfil.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c index 4656a18a03e45..56df916ad55f2 100644 --- a/sound/soc/fsl/fsl_micfil.c +++ b/sound/soc/fsl/fsl_micfil.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include #include @@ -35,6 +36,7 @@ struct fsl_micfil { struct clk *busclk; struct clk *mclk; struct snd_dmaengine_dai_dma_data dma_params_rx; + struct sdma_peripheral_config sdmacfg; unsigned int dataline; char name[32]; int irq[MICFIL_IRQ_LINES]; @@ -324,6 +326,10 @@ static int fsl_micfil_hw_params(struct snd_pcm_substream *substream, return ret; } + micfil->dma_params_rx.peripheral_config = &micfil->sdmacfg; + micfil->dma_params_rx.peripheral_size = sizeof(micfil->sdmacfg); + micfil->sdmacfg.n_fifos_src = channels; + micfil->sdmacfg.sw_done = true; micfil->dma_params_rx.maxburst = channels * MICFIL_DMA_MAXBURST_RX; return 0;