From: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Date: Tue, 2 Sep 2014 12:51:20 +0000 (-0300)
Subject: drm/tilcdc: panel: Fix backlight devicetree support
X-Git-Tag: fixes-against-v3.18-rc2~73^2~26
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=18c44db8cafe9bda4fcb51bfc05c1f1d7cefc44c;p=pandora-kernel.git

drm/tilcdc: panel: Fix backlight devicetree support

The current backlight support is broken; the driver expects a backlight-class
in the panel devicetree node. Fix this by implementing it properly, getting
an optional backlight from a phandle.

This shouldn't cause any backward-compatibility DT issue because the current
implementation doesn't work and is not even documented.

Tested-by: Darren Etheridge <detheridge@ti.com>
Tested-by: Johannes Pointner <johannes.pointner@br-automation.com>
Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---

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