Unverified Commit 63deee52 authored by Patrice Chotard's avatar Patrice Chotard Committed by Mark Brown
Browse files

spi: stm32: qspi: Clamp stm32_qspi_get_mode() output to CCR_BUSWIDTH_4 



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: a557fca6 ("spi: stm32_qspi: Add transfer_one_message() spi callback")
Cc: stable@vger.kernel.org
Signed-off-by: default avatarPatrice Chotard <patrice.chotard@foss.st.com>
Link: https://msgid.link/r/20240618132951.2743935-3-patrice.chotard@foss.st.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent c2bd0791

drivers/spi/spi-stm32-qspi.c

+1 −1
Original line number Diff line number Diff line
@@ -349,7 +349,7 @@ static int stm32_qspi_wait_poll_status(struct stm32_qspi *qspi) 


static int stm32_qspi_get_mode(u8 buswidth)

{

	if (buswidth == 4)

	if (buswidth >= 4)

		return CCR_BUSWIDTH_4;



	return buswidth;