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dma-mapping: move dma configuration to bus infrastructure
ACPI/OF support for configuration of DMA is a bus specific aspect, and thus should be configured by the bus. Introduces a 'dma_configure' bus method so that busses can control their DMA capabilities. Also update the PCI, Platform, ACPI and host1x buses to use the new method. Suggested-by: Christoph Hellwig <[email protected]> Signed-off-by: Nipun Gupta <[email protected]> Acked-by: Bjorn Helgaas <[email protected]> # PCI parts Acked-by: Thierry Reding <[email protected]> Reviewed-by: Greg Kroah-Hartman <[email protected]> [hch: simplified host1x_dma_configure based on a comment from Thierry, rewrote changelog] Signed-off-by: Christoph Hellwig <[email protected]>
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