> -----Original Message----- > From: Frank Li <frank.li@xxxxxxx> > Sent: 2024年3月4日 12:33 > To: Vinod Koul <vkoul@xxxxxxxxxx>; Shawn Guo <shawnguo@xxxxxxxxxx>; > Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>; Pengutronix Kernel Team > <kernel@xxxxxxxxxxxxxx>; Fabio Estevam <festevam@xxxxxxxxx>; > dl-linux-imx <linux-imx@xxxxxxx> > Cc: dmaengine@xxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; > linux-kernel@xxxxxxxxxxxxxxx; imx@xxxxxxxxxxxxxxx; Frank Li > <frank.li@xxxxxxx>; Joy Zou <joy.zou@xxxxxxx> > Subject: [PATCH 3/4] dmaengine: imx-sdma: Add multi fifo for DEV_TO_DEV > > From: Joy Zou <joy.zou@xxxxxxx> > > Support multi fifo for DEV_TO_DEV. > > Signed-off-by: Joy Zou <joy.zou@xxxxxxx> > Signed-off-by: Frank Li <Frank.Li@xxxxxxx> Reviewed-by: Joy Zou <joy.zou@xxxxxxx> BR Joy Zou > --- > drivers/dma/imx-sdma.c | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index > ef45420485dac..9b133990afa39 100644 > --- a/drivers/dma/imx-sdma.c > +++ b/drivers/dma/imx-sdma.c > @@ -169,6 +169,8 @@ > #define SDMA_WATERMARK_LEVEL_SPDIF BIT(10) > #define SDMA_WATERMARK_LEVEL_SP BIT(11) > #define SDMA_WATERMARK_LEVEL_DP BIT(12) > +#define SDMA_WATERMARK_LEVEL_SD BIT(13) > +#define SDMA_WATERMARK_LEVEL_DD BIT(14) > #define SDMA_WATERMARK_LEVEL_HWML (0xFF << 16) > #define SDMA_WATERMARK_LEVEL_LWE BIT(28) > #define SDMA_WATERMARK_LEVEL_HWE BIT(29) > @@ -1259,6 +1261,11 @@ static void > sdma_set_watermarklevel_for_p2p(struct sdma_channel *sdmac) > sdmac->watermark_level |= SDMA_WATERMARK_LEVEL_DP; > > sdmac->watermark_level |= SDMA_WATERMARK_LEVEL_CONT; > + > + if (sdmac->n_fifos_src > 1) > + sdmac->watermark_level |= SDMA_WATERMARK_LEVEL_SD; > + if (sdmac->n_fifos_dst > 1) > + sdmac->watermark_level |= SDMA_WATERMARK_LEVEL_DD; > } > > static void sdma_set_watermarklevel_for_sais(struct sdma_channel *sdmac) > > -- > 2.34.1
