On Mon, Nov 03, 2014 at 10:34:46AM +0100, Maxime Ripard wrote: > What I mean is that since you are saying that drivers should do the > kmap themselves, then *all* of the drivers are broken if they are not > using it. And all of them are missing this kmap.
kmap is used by the software implementations to map the input/output into virtual address space. Drivers typically use DMA and operate on physical addresses so they don't need kmap. Cheers, -- Email: Herbert Xu <herb...@gondor.apana.org.au> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
