>> + .dev_groups = amba_dev_groups, >> + .match = amba_match, >> + .uevent = amba_uevent, >> + .pm = &amba_pm, >> + .dma_configure = amba_dma_configure, >> + .dma_deconfigure = amba_dma_deconfigure, >> + .force_dma = true, > > This patch should also be removing force_dma because it no longer makes > sense. If DMA configuration is now done by a bus-level callback, then a bus > which wants its children to get DMA configuration needs to implement that > callback; there's nowhere to force a "default" global behaviour any more.
Btw, we don't really know how many busses currently rely on OF or ACPI configuration. So maybe we need to keep those as a default?
