> I am not sure if the SDHI driver or the RZ-DMAC driver (or virt-dma) > should be fixed, as the documentation[1] states: > > Note that callbacks will always be invoked from the DMA > engines tasklet, never from interrupt context. Back then, I had the impression that we can rework the SDHI SYSDMAC part to not use a completion like the internal DMAC version does. But it has been a while and I got completely side-tracked meanwhile.
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