btashton opened a new pull request, #7263:
URL: https://github.com/apache/incubator-nuttx/pull/7263
## Summary
This fixes two bugs when using the DMA LLI functionality:
* rx and tx buffer addresses were not properly offset for entries past the
first.
* The TC interrupt was enabled on the first LLI entry because it was set
directly to the control register in the dma_channel_start function, which would
cause the interrupt to fire before the full transaction was completed.
## Impact
Larger DMA transfers for SPI are now properly supported.
## Testing
Tested this against a display using transfers of 12800 bytes per transfer
which is 7 LLI entries.
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