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| author | Douglas Anderson <[email protected]> | 2023-07-25 18:02:27 +0000 |
|---|---|---|
| committer | Mark Brown <[email protected]> | 2023-07-26 11:47:20 +0000 |
| commit | cc71c42b3dc1085d3e72dfa5603e827b9eb59da1 (patch) | |
| tree | e8257c88fbf21f06fe0f380487addf14d6f6ed1d /drivers/usb/cdns3/cdns3-gadget.c | |
| parent | spi: spi-qcom-qspi: Fallback to PIO for xfers that aren't multiples of 4 bytes (diff) | |
| download | kernel-cc71c42b3dc1085d3e72dfa5603e827b9eb59da1.tar.gz kernel-cc71c42b3dc1085d3e72dfa5603e827b9eb59da1.zip | |
spi: spi-qcom-qspi: Add mem_ops to avoid PIO for badly sized reads
In the patch ("spi: spi-qcom-qspi: Fallback to PIO for xfers that
aren't multiples of 4 bytes") we detect reads that we can't handle
properly and fallback to PIO mode. While that's correct behavior, we
can do better by adding "spi_controller_mem_ops" for our
controller. Once we do this then the caller will give us a transfer
that's a multiple of 4-bytes so we can DMA.
Fixes: b5762d95607e ("spi: spi-qcom-qspi: Add DMA mode support")
Signed-off-by: Douglas Anderson <[email protected]>
Reviewed-by: Vijaya Krishna Nivarthi <[email protected]>
Link: https://lore.kernel.org/r/20230725110226.2.Id4a39804e01e4a06dae9b73fd2a5194c4c7ea453@changeid
Signed-off-by: Mark Brown <[email protected]>
Diffstat (limited to 'drivers/usb/cdns3/cdns3-gadget.c')
0 files changed, 0 insertions, 0 deletions