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| author | Vladimir Oltean <vladimir.oltean@nxp.com> | 2020-03-02 01:19:58 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-03-04 19:28:54 +0100 |
| commit | 0feaf8f5afe057c397a440e76865b3d746dc9f7e (patch) | |
| tree | 82004eb7c6a796ee5011768890c0dd04f61def83 /drivers/spi/spi-fsl-dspi.c | |
| parent | spi: spi-fsl-dspi: Support SPI software timestamping in all non-DMA modes (diff) | |
| download | linux-0feaf8f5afe057c397a440e76865b3d746dc9f7e.tar.xz linux-0feaf8f5afe057c397a440e76865b3d746dc9f7e.zip | |
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: Vladimir Oltean <vladimir.oltean@nxp.com>
Message-Id: <20200302001958.11105-7-olteanv@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi-fsl-dspi.c')
| -rw-r--r-- | drivers/spi/spi-fsl-dspi.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c index c26a42f8ecbc..c357c3247232 100644 --- a/drivers/spi/spi-fsl-dspi.c +++ b/drivers/spi/spi-fsl-dspi.c @@ -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, |