From: Michel JAOUEN <michel.jaouen@stericsson.com>
Date: Mon, 7 May 2012 13:02:03 +0000 (+0200)
Subject: mfd: Support of hierachical interrupt for ab8500
X-Git-Tag: v3.5-rc1~51^2~56
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7ccfe9b1d58ef5cf8fdbd50b6ee2ae0e9aa9cb36;p=pandora-kernel.git

mfd: Support of hierachical interrupt for ab8500

Hierarchical interrupt is supported since ab8500 V2.
However, it is not implemented in the ab8500-core driver.
With the current implementation, when an ab9540 interrupt
occurs, 17 Latch registers are read through i2c. With
hierarchical interrupt implementation, there are only 4 i2c
accesses.

Signed-off-by: Maxime Coquelin <maxime.coquelin@stericsson.com>
Reviewed-by: Michel Jaouen <michel.jaouen@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---

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