diff options
| author |   Paolo Abeni <pabeni@redhat.com> | 2022-04-22 09:56:00 +0200 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2022-04-22 09:56:00 +0200 |
| commit | f70925bf99406150d8133e775e49c9c459f78733 (patch) | |
| tree | 392dd3854bf229c0c94b481819e4a67551ba6895 /drivers/spi/spi-cadence-quadspi.c | |
| parent | net: eql: Use kzalloc instead of kmalloc/memset (diff) | |
| parent | Merge tag 'net-5.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net (diff) | |
| download | linux-dev-f70925bf99406150d8133e775e49c9c459f78733.tar.xz linux-dev-f70925bf99406150d8133e775e49c9c459f78733.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
drivers/net/ethernet/microchip/lan966x/lan966x_main.c
d08ed852560e ("net: lan966x: Make sure to release ptp interrupt")
c8349639324a ("net: lan966x: Add FDMA functionality")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'drivers/spi/spi-cadence-quadspi.c')
| -rw-r--r-- | drivers/spi/spi-cadence-quadspi.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/drivers/spi/spi-cadence-quadspi.c b/drivers/spi/spi-cadence-quadspi.c index 616ada891974..19686fb47bb3 100644 --- a/drivers/spi/spi-cadence-quadspi.c +++ b/drivers/spi/spi-cadence-quadspi.c @@ -1415,9 +1415,24 @@ static bool cqspi_supports_mem_op(struct spi_mem *mem, all_false = !op->cmd.dtr && !op->addr.dtr && !op->dummy.dtr && !op->data.dtr; - /* Mixed DTR modes not supported. */ - if (!(all_true || all_false)) + if (all_true) { + /* Right now we only support 8-8-8 DTR mode. */ + if (op->cmd.nbytes && op->cmd.buswidth != 8) + return false; + if (op->addr.nbytes && op->addr.buswidth != 8) + return false; + if (op->data.nbytes && op->data.buswidth != 8) + return false; + } else if (all_false) { + /* Only 1-1-X ops are supported without DTR */ + if (op->cmd.nbytes && op->cmd.buswidth > 1) + return false; + if (op->addr.nbytes && op->addr.buswidth > 1) + return false; + } else { + /* Mixed DTR modes are not supported. */ return false; + } return spi_mem_default_supports_op(mem, op); } |