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| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2023-04-01 19:59:47 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2023-04-05 12:33:33 +0100 |
| commit | 8a5299a1278eadf1e08a598a5345c376206f171e (patch) | |
| tree | 28c5bdd4741a1945b96f485c9c07592782b6280c /drivers/spi/spi-fsl-cpm.c | |
| parent | c20c57d9868d7f9fd1b2904c7801b07e128f6322 (diff) | |
spi: fsl-spi: Re-organise transfer bits_per_word adaptation
For different reasons, fsl-spi driver performs bits_per_word
modifications for different reasons:
- On CPU mode, to minimise amount of interrupts
- On CPM/QE mode to work around controller byte order
For CPU mode that's done in fsl_spi_prepare_message() while
for CPM mode that's done in fsl_spi_setup_transfer().
Reunify all of it in fsl_spi_prepare_message(), and catch
impossible cases early through master's bits_per_word_mask
instead of returning EINVAL later.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Link: https://lore.kernel.org/r/0ce96fe96e8b07cba0613e4097cfd94d09b8919a.1680371809.git.christophe.leroy@csgroup.eu
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi-fsl-cpm.c')
0 files changed, 0 insertions, 0 deletions