From: Chen-Yu Tsai <wens@csie.org>
Date: Mon, 30 Jun 2014 16:04:59 +0000 (+0800)
Subject: pinctrl: sunxi: Fix multi bank interrupt support in gpio_to_irq
X-Git-Tag: cleanup-for-v3.18~87^2~48
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0d3bafac658de2f8e267df805a61e597449699b5;p=pandora-kernel.git

pinctrl: sunxi: Fix multi bank interrupt support in gpio_to_irq

When mapping the interrupts, the gpio_to_irq function did not consider
the bank number of the gpio pin in question, only the offset or the
interrupt number in the bank. As a result, requests for interrupts in
the later banks get mapped to the first bank.

This issue was discovered while enabling mmc on the new sun8i platform.
The tablet I have uses a pin/interrupt from the second bank to do mmc
card detection. Tested on this very device with register inspection and
actual mmc card insertion/removal.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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