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| author |   Rasmus Villemoes <rasmus.villemoes@prevas.dk> | 2021-01-30 15:35:45 +0100 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2021-02-01 13:19:00 +0000 |
| commit | 9d2aa6dbf87af89c13cac2d1b4cccad83fb14a7e (patch) | |
| tree | fb1021d3eb0913e050cb28a311c380f7cd972482 /lib/test_bitmap.c | |
| parent | spidev: Add cisco device compatible (diff) | |
| download | linux-dev-9d2aa6dbf87af89c13cac2d1b4cccad83fb14a7e.tar.xz linux-dev-9d2aa6dbf87af89c13cac2d1b4cccad83fb14a7e.zip | |
spi: fsl: invert spisel_boot signal on MPC8309
Commit 7a2da5d7960a ("spi: fsl: Fix driver breakage when SPI_CS_HIGH
is not set in spi->mode") broke our MPC8309 board by effectively
inverting the boolean value passed to fsl_spi_cs_control. The
SPISEL_BOOT signal is used as chipselect, but it's not a gpio, so
we cannot rely on gpiolib handling the polarity.
Adapt to the new world order by inverting the logic here. This does
assume that the slave sitting at the SPISEL_BOOT is active low, but
should that ever turn out not to be the case, one can create a stub
gpiochip driver controlling a single gpio (or rather, a single "spo",
special-purpose output).
Fixes: 7a2da5d7960a ("spi: fsl: Fix driver breakage when SPI_CS_HIGH is not set in spi->mode")
Cc: stable@vger.kernel.org
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Link: https://lore.kernel.org/r/20210130143545.505613-1-rasmus.villemoes@prevas.dk
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'lib/test_bitmap.c')
0 files changed, 0 insertions, 0 deletions