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spi: core: add dma_map_dev for dma device

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Some controllers like qcom geni need the parent device to be used for
dma mapping, so add a dma_map_dev field and let drivers fill this to be
used as mapping device

Signed-off-by: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20210625052213.32260-4-vkoul@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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Vinod Koul 2021-06-25 10:52:11 +05:30 • committed by Mark Brown
parent c58db2abb1
commit b470e10eb4
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2 changed files with 5 additions and 0 deletions
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include/linux/spi/spi.h
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@ -588,6 +588,7 @@ struct spi_controller {
bool (*can_dma)(struct spi_controller *ctlr,
struct spi_device *spi,
struct spi_transfer *xfer);
struct device *dma_map_dev;
/*
* These hooks are for drivers that want to use the generic