Unverified Commit 0feaf8f5 authored by Vladimir Oltean's avatar Vladimir Oltean Committed by Mark Brown
Browse files

spi: spi-fsl-dspi: Convert the instantiations that support it to DMA 



The A-011218 eDMA/DSPI erratum affects most of the older Layerscape SoCs
with DSPI, and its workaround is a bit intrusive.

After this patch, there are no users of TCFQ mode that don't also
support XSPI (previously there was LS2085A).

Signed-off-by: default avatarVladimir Oltean <vladimir.oltean@nxp.com>
Message-Id: <20200302001958.11105-7-olteanv@gmail.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 63669902

drivers/spi/spi-fsl-dspi.c

+10 −3
Original line number Diff line number Diff line
@@ -147,42 +147,49 @@ static const struct fsl_dspi_devtype_data devtype_data[] = { 
		.fifo_size		= 4,

	},

	[LS1021A] = {

		/* Has A-011218 DMA erratum */

		.trans_mode		= DSPI_TCFQ_MODE,

		.max_clock_factor	= 8,

		.xspi_mode		= true,

		.fifo_size		= 4,

	},

	[LS1012A] = {

		/* Has A-011218 DMA erratum */

		.trans_mode		= DSPI_TCFQ_MODE,

		.max_clock_factor	= 8,

		.xspi_mode		= true,

		.fifo_size		= 16,

	},

	[LS1043A] = {

		/* Has A-011218 DMA erratum */

		.trans_mode		= DSPI_TCFQ_MODE,

		.max_clock_factor	= 8,

		.xspi_mode		= true,

		.fifo_size		= 16,

	},

	[LS1046A] = {

		/* Has A-011218 DMA erratum */

		.trans_mode		= DSPI_TCFQ_MODE,

		.max_clock_factor	= 8,

		.xspi_mode		= true,

		.fifo_size		= 16,

	},

	[LS2080A] = {

		.trans_mode		= DSPI_TCFQ_MODE,

		.trans_mode		= DSPI_DMA_MODE,

		.dma_bufsize		= 8,

		.max_clock_factor	= 8,

		.xspi_mode		= true,

		.fifo_size		= 4,

	},

	[LS2085A] = {

		.trans_mode		= DSPI_TCFQ_MODE,

		.trans_mode		= DSPI_DMA_MODE,

		.dma_bufsize		= 8,

		.max_clock_factor	= 8,

		.fifo_size		= 4,

	},

	[LX2160A] = {

		.trans_mode		= DSPI_TCFQ_MODE,

		.trans_mode		= DSPI_DMA_MODE,

		.dma_bufsize		= 8,

		.max_clock_factor	= 8,

		.xspi_mode		= true,

		.fifo_size		= 4,

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