spi: spi-qcom-qspi: Add DMA mode support

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Current driver supports only PIO mode.

HW supports DMA, so add DMA mode support to the driver
for better performance for larger xfers.

Signed-off-by: Vijaya Krishna Nivarthi <quic_vnivarth@quicinc.com
Reviewed-by: Douglas Anderson <dianders@chromium.org
Link: https://lore.kernel.org/r/1682328761-17517-6-git-send-email-quic_vnivarth@quicinc.com
Signed-off-by: Mark Brown <broonie@kernel.org

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Vijaya Krishna Nivarthi 2023-04-24 15:02:41 +05:30 • committed by Mark Brown

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commit b5762d9560

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drivers/spi/spi-qcom-qspi.c

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