net: ethernet: ti: am65-cpsw: Add suspend/resume support

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Add PM handlers for System suspend/resume.

As DMA driver doesn't yet support suspend/resume we free up
the DMA channels at suspend and acquire and initialize them
at resume.

Move the init/free dma calls to ndo_open/close() hooks so
it is symmetric and easier to invoke from suspend/resume handler.

As CPTS looses contect during suspend/resume, invoke the
necessary CPTS suspend/resume helpers.

Signed-off-by: Roger Quadros <rogerq@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Roger Quadros 2022-11-04 15:23:07 +02:00 • committed by David S. Miller

parent cef122d4cf

commit fd23df72f2

1 changed files with 166 additions and 55 deletions

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drivers/net/ethernet/ti/am65-cpsw-nuss.c

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