On Fri, Jan 15, 2016 at 10:45:41AM +0100, Peter Zijlstra wrote: > So _regmap_write() does: map->lock(map->lock_arg)
> Which isn't very enlightening, since that can be a mutex or a spinlock, > the above strongly suggests spinlock though. > Looking at __regmap_init(), this seems to depend on: > (bus && bus->fast_io) || config->fast_io > now, afaict, regmap_mmio is used in this case, which has .fast_io = > true. > So yeah, fail. Indeed, that'd do it. It hadn't occurred to me that someone would be using MMIO with an rbtree cache. -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 473 bytes Desc: not available URL: <http://lists.freedesktop.org/archives/dri-devel/attachments/20160115/1926ba49/attachment.sig>