spi: rzv2h-rspi: add support for DMA mode

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The DMA controller can be used to transfer data to and from the SPI
controller without involving the CPU for each word of a SPI transfer.

Add support for DMA mode.

Signed-off-by: Cosmin Tanislav <cosmin-gabriel.tanislav.xa@renesas.com>
Link: https://patch.msgid.link/20251201134229.600817-12-cosmin-gabriel.tanislav.xa@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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Cosmin Tanislav 2025-12-01 15:42:27 +02:00 • committed by Mark Brown

parent 163345e356

commit fa08b56686

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1 changed files with 168 additions and 1 deletions

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drivers/spi/spi-rzv2h-rspi.c

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