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| author | Amelie Delaunay <[email protected]> | 2022-05-05 13:56:08 +0200 |
|---|---|---|
| committer | Vinod Koul <[email protected]> | 2022-05-19 23:43:40 +0530 |
| commit | db60a63eb6850fce081c1a22e7318e5d37f4dcf5 (patch) | |
| tree | 999c033d98ac915864dc6b494e1394d430e3eec7 /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | d0b360e3c164be7ccc8eb2bfc341287959e27040 (diff) | |
dmaengine: stm32-dma: introduce stm32_dma_sg_inc to manage chan->next_sg
chan->next_sg is used to know which transfer will start after the ongoing
one. It is incremented for each new transfer, either on transfer start for
non-cyclic transfers, or on transfer complete interrupt for cyclic
transfers.
For cyclic transfer, when the last item is reached, chan->next_sg must be
reinitialized to the first item.
Signed-off-by: Amelie Delaunay <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Vinod Koul <[email protected]>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions