On Thursday 05 March 2015 17:58:58 Aleksey Makarov wrote:
> + ret = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(64));
> + if (ret)
> + return ret;
>
Don't do this, instead you should set the dma-ranges of the parent
bus correctly so that dma_set_mask_and_coherent succeeds.
dma_coerce_mask_and_coherent() was introduced as a hack to
annotate broken drivers that were overriding the dma_mask pointer
themselves.
Arnd
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