[PATCH v5 1/3] ARM: Introduce atomic MMIO modify

[Russell King - ARM Linux]

On Tue, Dec 10, 2013 at 11:41:35AM -0300, Ezequiel Garcia wrote:
> Some SoC have MMIO regions that are shared across orthogonal
> subsystems. This commit implements a possible solution for the
> thread-safe access of such regions through a spinlock-protected API.
> 
> Concurrent access is protected with a single spinlock for the
> entire MMIO address space. While this protects shared-registers,
> it also serializes access to unrelated/unshared registers.
> 
> We add relaxed and non-relaxed variants, by using writel_relaxed and writel,
> respectively. The rationale for this is that some users may not require
> register write completion but only thread-safe access to a register.
> 
> Signed-off-by: Ezequiel Garcia <ezequiel.garcia at free-electrons.com>

Okay, so this patch has been submitted to the patch system, but it
contains no other tags other than Ezequiel's sign-off.  Clearly
other people *have* reviewed it.

Can we please have some acks etc for it please?

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