spi: nxp-fspi: Ensure width is respected in spi-mem operations

[ Upstream commit 007773e16a6f3f49d1439554078c3ba8af131998 ]

Make use of a core helper to ensure the desired width is respected
when calling spi-mem operators.

Otherwise only the SPI controller will be matched with the flash chip,
which might lead to wrong widths. Also consider the width specified by
the user in the device tree.

Fixes: a5356aef6a90 ("spi: spi-mem: Add driver for NXP FlexSPI controller")
Signed-off-by: Michael Walle <michael@walle.cc>
Link: https://lore.kernel.org/r/20191211195730.26794-1-michael@walle.cc
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/spi/spi-nxp-fspi.c b/drivers/spi/spi-nxp-fspi.c
index 501b923f2c27ade9f060d0e368f5f2e0e771f808..28ae5229f889fa3c0f100adaa5d44e15486ef7b2 100644 (file)
--- a/drivers/spi/spi-nxp-fspi.c
+++ b/drivers/spi/spi-nxp-fspi.c
@@ -439,7 +439,7 @@ static bool nxp_fspi_supports_op(struct spi_mem *mem,
            op->data.nbytes > f->devtype_data->txfifo)
                return false;
 
-       return true;
+       return spi_mem_default_supports_op(mem, op);
 }
 
 /* Instead of busy looping invoke readl_poll_timeout functionality. */