From: Axel Lin <axel.lin@gmail.com>
Date: Tue, 24 Jul 2012 10:35:16 +0000 (+0800)
Subject: gpio: msic: Fix calculating register address in msic_gpio_to_oreg()
X-Git-Tag: v3.6-rc2~17^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f7da0bdbf585c0404fc89901ee4bdb806e70530f;p=pandora-kernel.git

gpio: msic: Fix calculating register address in msic_gpio_to_oreg()

In the case offset is 20 ... 23, the equation to get the register should be:
        INTEL_MSIC_GPIO1HV0CTLO - offset + 20

With above equation, we can get below mapping between offset and the register:
        offset is 20: INTEL_MSIC_GPIO1HV0CTLO
        offset is 21: INTEL_MSIC_GPIO1HV1CTLO
        offset is 22: INTEL_MSIC_GPIO1HV2CTLO
        offset is 23: INTEL_MSIC_GPIO1HV3CTLO

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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