vchiq_arm: ARCH_BCM2835 compatibility
Use virt_to_dma (not ideal, I know) to calculate the virt-to-bus offset. This will make use of the "dma-ranges" property, if present.
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Use virt_to_dma (not ideal, I know) to calculate the virt-to-bus offset. This will make use of the "dma-ranges" property, if present.