From 15c1a919ae9c0a474c9cf4816d164ced5444292d Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Fri, 14 Mar 2014 12:03:47 +0100
Subject: [PATCH] drm/panel: simple: Allow GPIO accesses to sleep

The enable GPIO for panels may be provided by GPIO expanders on slow
busses (such as I2C), and therefore toggling the GPIO may sleep. Since
these accesses don't happen in interrupt context, use the *_cansleep()
variants of the GPIO API.

Signed-off-by: Thierry Reding <treding@nvidia.com>
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