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@xxxxxxxxxxxxxx>
---
drivers/spi/spi-stm32.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/spi/spi-stm32.c b/drivers/spi/spi-stm32.c
index 6d10fa4ab7839..7ddf9db776b06 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;
}
base-commit: 2ccdd1b13c591d306f0401d98dedc4bdcd02b421
--
2.39.2
