From: Kevin Hilman <khilman@deeprootsystems.com>
Date: Wed, 22 Sep 2010 23:06:27 +0000 (-0700)
Subject: OMAP: GPIO: ensure debounce clocks are disabled during idle/suspend
X-Git-Tag: v2.6.37-rc1~121^2~55^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0aed043517ad4135cb458a46e9e99e21cbb59c69;p=pandora-kernel.git

OMAP: GPIO: ensure debounce clocks are disabled during idle/suspend

If a GPIO bank has more than one GPIO with debounce enabled, the
debounce clock will not be fully disabled before going to
idle/suspend.

In the idle path, we just do a single clk_disable() of the bank's
debounce clock.  If there are multiple debounce-enabled GPIOs in the
bank, that clocks usage count will be > 1, so the clk_disable() will
not actually disable the clock.

So the fix is to clk_disable() for every debounce-enabled GPIO in the
bank (and an equivalent clk_enable() of course.)

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
---

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