path: root/drivers/spi
diff options
authorBoris Brezillon <boris.brezillon@bootlin.com>2018-11-06 17:05:31 +0100
committerMark Brown <broonie@kernel.org>2018-11-20 16:26:26 +0000
commit0ebb261a0b2d090de618a383d2378d4a00834958 (patch)
tree51563f70576044f4641a4e20399e6e7ccd18cb5d /drivers/spi
parent6afe76a6723975391d06c42a422370a588395f84 (diff)
spi: spi-mem: Add SPI_MEM_NO_DATA to the spi_mem_data_dir enum
When defining spi_mem_op templates we don't necessarily know the size that will be passed when the template is actually used, and basing the supports_op() check on op->data.nbytes to know whether there will be data transferred for a specific operation is this not possible. Add SPI_MEM_NO_DATA to the spi_mem_data_dir enum so that we can base our checks on op->data.dir instead of op->data.nbytes. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/spi/spi-mem.c b/drivers/spi/spi-mem.c
index 62a7b80801d2..967f581bca4f 100644
--- a/drivers/spi/spi-mem.c
+++ b/drivers/spi/spi-mem.c
@@ -142,7 +142,7 @@ static bool spi_mem_default_supports_op(struct spi_mem *mem,
spi_check_buswidth_req(mem, op->dummy.buswidth, true))
return false;
- if (op->data.nbytes &&
+ if (op->data.dir != SPI_MEM_NO_DATA &&
spi_check_buswidth_req(mem, op->data.buswidth,
op->data.dir == SPI_MEM_DATA_OUT))
return false;

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