The .supports_op() callback function returns true by default after performing driver-specific checks. Therefore the driver cannot apply the buswidth in devicetree. Call spi_mem_default_supports_op() helper to handle the buswidth in devicetree. Fixes: 1b74dd64c861 ("spi: Add Socionext F_OSPI SPI flash controller driver") Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@xxxxxxxxxxxxx> --- drivers/spi/spi-sn-f-ospi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/spi/spi-sn-f-ospi.c b/drivers/spi/spi-sn-f-ospi.c index 348c6e1edd38..87302d51be42 100644 --- a/drivers/spi/spi-sn-f-ospi.c +++ b/drivers/spi/spi-sn-f-ospi.c @@ -561,7 +561,7 @@ static bool f_ospi_supports_op(struct spi_mem *mem, if (!f_ospi_supports_op_width(mem, op)) return false; - return true; + return spi_mem_default_supports_op(mem, op); } static int f_ospi_adjust_op_size(struct spi_mem *mem, struct spi_mem_op *op) -- 2.25.1