From 21454ad5e9b0ec62c36580dd2062151973cc2c07 Mon Sep 17 00:00:00 2001 From: Patrice Chotard Date: Tue, 18 Jun 2024 15:29:50 +0200 Subject: [PATCH] spi: stm32: qspi: Clamp stm32_qspi_get_mode() output to CCR_BUSWIDTH_4 BugLink: https://bugs.launchpad.net/bugs/2075154 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@vger.kernel.org Signed-off-by: Patrice Chotard Link: https://msgid.link/r/20240618132951.2743935-3-patrice.chotard@foss.st.com Signed-off-by: Mark Brown Signed-off-by: Greg Kroah-Hartman Signed-off-by: Manuel Diewald Signed-off-by: Stefan Bader Signed-off-by: Roxana Nicolescu --- drivers/spi/spi-stm32-qspi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/spi/spi-stm32-qspi.c b/drivers/spi/spi-stm32-qspi.c index a7a19dc7648c..265c8bfa709a 100644 --- 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(struct stm32_qspi *qspi) static int stm32_qspi_get_mode(u8 buswidth) { - if (buswidth == 4) + if (buswidth >= 4) return CCR_BUSWIDTH_4; return buswidth;