drivers: uart: uart_max32: Add asynchronous mode support #84126
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This commit adds asynchronous mode support to MAX32 UART driver. Each direction uses a single DMA channel that is assigned in devicetree configuration. Asynchronous mode also depends on interrupts to refresh receive timeouts. Signed-off-by: Tahsin Mutlugun <[email protected]>
When using asynchronous API, transfer will fail if the source buffer is located in a region that cannot be accessed by DMA. This could happen when a buffer is declared const, and placed in flash memory, for example. Workaround this problem by loading the data into a set of temporary caches before passing them to DMA. Signed-off-by: Tahsin Mutlugun <[email protected]>
Support following boards in asynchronous UART tests: - MAX32655EVKIT - MAX32655FTHR - MAX32666EVKIT - MAX32666FTHR - MAX32670EVKIT - MAX32690EVKIT Signed-off-by: Tahsin Mutlugun <[email protected]>
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dcpleung
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MaureenHelm
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Ya, that test is flaky. I've just re-run the failed job, this should do the trick |
... and it did |
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Add asynchronous mode support for MAX32 UART driver. Enable tests for several MAX32 boards.