diff options
| author | Leonard Göhrs <l.goehrs@pengutronix.de> | 2023-08-16 16:52:37 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2023-08-21 13:09:56 +0100 |
| commit | 715dc9a1f0c8ae0bbd4e5b37f9a165ea39e47fe9 (patch) | |
| tree | ed91b93f50f4837a163607e992db692ee9a48ebd /drivers/spi | |
| parent | 2ccdd1b13c591d306f0401d98dedc4bdcd02b421 (diff) | |
spi: stm32: fix accidential revert to byte-sized transfer splitting
Commit 6f486556abe35 ("spi: stm32: renaming of spi_master into
spi_controller") included an accidential reverted of a change added in
commit 1e4929112507f ("spi: stm32: split large transfers based on word
size instead of bytes").
This breaks large SPI transfers with word sizes > 8 bits, which are
e.g. common when driving MIPI DBI displays.
Fix this by using `spi_split_transfers_maxwords()` instead of
`spi_split_transfers_maxsize()`.
Fixes: 6f486556abe35 ("spi: stm32: renaming of spi_master into spi_controller")
Signed-off-by: Leonard Göhrs <l.goehrs@pengutronix.de>
Link: https://lore.kernel.org/r/20230816145237.3159817-1-l.goehrs@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-stm32.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/spi/spi-stm32.c b/drivers/spi/spi-stm32.c index 6d10fa4ab783..7ddf9db776b0 100644 --- a/drivers/spi/spi-stm32.c +++ b/drivers/spi/spi-stm32.c @@ -1001,9 +1001,9 @@ static int stm32_spi_prepare_msg(struct spi_controller *ctrl, if (spi->cfg->set_number_of_data) { int ret; - ret = spi_split_transfers_maxsize(ctrl, msg, - STM32H7_SPI_TSIZE_MAX, - GFP_KERNEL | GFP_DMA); + ret = spi_split_transfers_maxwords(ctrl, msg, + STM32H7_SPI_TSIZE_MAX, + GFP_KERNEL | GFP_DMA); if (ret) return ret; } |