From: Jani Nikula <jani.nikula@intel.com>
Date: Fri, 12 Apr 2013 12:18:36 +0000 (+0300)
Subject: drm/i915: keep max backlight internal to intel_panel.c
X-Git-Tag: v3.11-rc1~65^2~131^2~112
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d65406327345e5a5e0f697a3ffe3e53bc9b5d7c6;p=pandora-kernel.git

drm/i915: keep max backlight internal to intel_panel.c

In preparation of adding locking to backlight, make max backlight value
(the modulation frequency the PWM duty cycle value must not exceed)
internal to intel_panel.c.

Have intel_panel_set_backlight() accept a caller defined range for level,
and scale input to max backlight value internally.

Clean up intel_panel_get_max_backlight() and usage internally.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

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