diff options
| author | Pratyush Yadav <p.yadav@ti.com> | 2020-06-23 20:30:17 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-07-14 18:29:40 +0200 |
| commit | 4728f073bfc66b8b555274ef0d7741d7f5a48947 (patch) | |
| tree | ca682afb38fe3c8e056d21dc575831e34a6be8c6 /drivers/spi | |
| parent | spi: atmel-quadspi: reject DTR ops (diff) | |
| download | linux-4728f073bfc66b8b555274ef0d7741d7f5a48947.tar.xz linux-4728f073bfc66b8b555274ef0d7741d7f5a48947.zip | |
spi: spi-mtk-nor: reject DTR ops
Double Transfer Rate (DTR) ops are added in spi-mem. But this controller
doesn't support DTR transactions. Since we don't use the default
supports_op(), which rejects all DTR ops, do that explicitly in our
supports_op().
Signed-off-by: Pratyush Yadav <p.yadav@ti.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20200623183030.26591-5-p.yadav@ti.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-mtk-nor.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/spi/spi-mtk-nor.c b/drivers/spi/spi-mtk-nor.c index d5f393871619..b08d8e9a8ee9 100644 --- a/drivers/spi/spi-mtk-nor.c +++ b/drivers/spi/spi-mtk-nor.c @@ -211,6 +211,12 @@ static bool mtk_nor_supports_op(struct spi_mem *mem, if (op->cmd.buswidth != 1) return false; + /* DTR ops not supported. */ + if (op->cmd.dtr || op->addr.dtr || op->dummy.dtr || op->data.dtr) + return false; + if (op->cmd.nbytes != 1) + return false; + if ((op->addr.nbytes == 3) || (op->addr.nbytes == 4)) { if ((op->data.dir == SPI_MEM_DATA_IN) && mtk_nor_match_read(op)) return true; |