regmap: irq: add support for chips who have separate unmask registers
authorGuo Zeng <Guo.Zeng@csr.com>
Thu, 17 Sep 2015 05:23:20 +0000 (05:23 +0000)
committerMark Brown <broonie@kernel.org>
Thu, 17 Sep 2015 10:46:09 +0000 (11:46 +0100)
commit7b7d1968e4c8d8392e8e63906d45d0bcad079037
tree7fe40619a35b3a075523b799b4b47f46c667a4e2
parent6ff33f3902c3b1c5d0db6b1e2c70b6d76fba357f
regmap: irq: add support for chips who have separate unmask registers

Some chips have separate unmask registers from mask registers for
some consideration of concurrency SMP write performance. And this
patch adds a flag for it.

An user will be CSR SiRFSoC ARM chips.

Signed-off-by: Guo Zeng <Guo.Zeng@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
drivers/base/regmap/regmap-irq.c
include/linux/regmap.h
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