[PATCH 0/4] spi: spi-fsl-dspi: Target mode improvements

James Clark
2025-06-09T15:33:38Z

Improve usability of target mode by reporting FIFO errors and increasing
the buffer size when DMA is used. While we're touching DMA stuff also
switch to non-coherent memory, although this is unrelated to target
mode.

The first commit is marked as a fix because it can fix intermittent
issues with existing transfers, rather than the later fixes which
improve larger than FIFO target mode transfers which would have never
worked.

Signed-off-by: James Clark <james.clark@linaro.org>
---
James Clark (3):
spi: spi-fsl-dspi: Clear completion counter before initiating transfer
spi: spi-fsl-dspi: Use non-coherent memory for DMA
spi: spi-fsl-dspi: Report FIFO overflows as errors

Larisa Grigore (1):
spi: spi-fsl-dspi: Increase DMA buffer size

drivers/spi/spi-fsl-dspi.c | 128 ++++++++++++++++++++++++++++++++++++---------
1 file changed, 102 insertions(+), 26 deletions(-)
---
base-commit: 19272b37aa4f83ca52bdf9c16d5d81bdd1354494
change-id: 20250522-james-nxp-spi-dma-a997ebebfb6b

Best regards,
--
James Clark <james.clark@linaro.org>