From: Patrice Chotard <patrice.chotard@xxxxxxxxxxx>
commit 63deee52811b2f84ed2da55ad47252f0e8145d62 upstream.
In case usage of OCTAL mode, buswidth parameter can take the value 8.
As return value of stm32_qspi_get_mode() is used to configure fields
of CCR registers that are 2 bits only (fields IMODE, ADMODE, ADSIZE,
DMODE), clamp return value of stm32_qspi_get_mode() to 4.
Fixes: a557fca630cc ("spi: stm32_qspi: Add transfer_one_message() spi callback")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Patrice Chotard <patrice.chotard@xxxxxxxxxxx>
Link: https://msgid.link/r/20240618132951.2743935-3-patrice.chotard@xxxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/spi/spi-stm32-qspi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/spi/spi-stm32-qspi.c
+++ b/drivers/spi/spi-stm32-qspi.c
@@ -349,7 +349,7 @@ static int stm32_qspi_wait_poll_status(s
static int stm32_qspi_get_mode(u8 buswidth)
{
- if (buswidth == 4)
+ if (buswidth >= 4)
return CCR_BUSWIDTH_4;
return buswidth;
Patches currently in stable-queue which might be from patrice.chotard@xxxxxxxxxxx are
queue-6.9/spi-stm32-qspi-fix-dual-flash-mode-sanity-test-in-stm32_qspi_setup.patch
queue-6.9/spi-stm32-qspi-clamp-stm32_qspi_get_mode-output-to-ccr_buswidth_4.patch
