diff options
| author | Dave Airlie <airlied@redhat.com> | 2025-05-06 16:39:25 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2025-05-06 16:39:25 +1000 |
| commit | 5e0c67998152bdb91b056160449ee542b86271a5 (patch) | |
| tree | dff9fd979b0319dd2ed873a77246950d7ed95ceb /drivers/spi/spi-mem.c | |
| parent | 135130db6ee6500e6c82cf44dd831c3fe15f7b5f (diff) | |
| parent | 92a09c47464d040866cf2b4cd052bc60555185fb (diff) | |
BackMerge tag 'v6.15-rc5' into drm-next
Linux 6.15-rc5, requested by tzimmerman for fixes required in drm-next.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/spi/spi-mem.c')
| -rw-r--r-- | drivers/spi/spi-mem.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/spi/spi-mem.c b/drivers/spi/spi-mem.c index a31a1db07aa4..5db0639d3b01 100644 --- a/drivers/spi/spi-mem.c +++ b/drivers/spi/spi-mem.c @@ -596,7 +596,11 @@ u64 spi_mem_calc_op_duration(struct spi_mem_op *op) ns_per_cycles = 1000000000 / op->max_freq; ncycles += ((op->cmd.nbytes * 8) / op->cmd.buswidth) / (op->cmd.dtr ? 2 : 1); ncycles += ((op->addr.nbytes * 8) / op->addr.buswidth) / (op->addr.dtr ? 2 : 1); - ncycles += ((op->dummy.nbytes * 8) / op->dummy.buswidth) / (op->dummy.dtr ? 2 : 1); + + /* Dummy bytes are optional for some SPI flash memory operations */ + if (op->dummy.nbytes) + ncycles += ((op->dummy.nbytes * 8) / op->dummy.buswidth) / (op->dummy.dtr ? 2 : 1); + ncycles += ((op->data.nbytes * 8) / op->data.buswidth) / (op->data.dtr ? 2 : 1); return ncycles * ns_per_cycles; |