From: Matt Wagantall <mattw@codeaurora.org>
Date: Mon, 15 Dec 2014 23:47:23 +0000 (+0000)
Subject: iopoll: Introduce memory-mapped IO polling macros
X-Git-Tag: omap-for-v4.1/prcm-dts-mfd-syscon-fix~107^2~3^2^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=54c523127bcca986c6f9b04c7b56a949ea011899;p=pandora-kernel.git

iopoll: Introduce memory-mapped IO polling macros

It is sometimes necessary to poll a memory-mapped register until its value
satisfies some condition. Introduce a family of convenience macros that do
this. Tight-looping, sleeping, and timing out can all be accomplished using
these macros.

Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Robert Elliott <elliott@hp.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>
Signed-off-by: Mitchel Humpherys <mitchelh@codeaurora.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---

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