drm/i915/panel: The backlight is enabled if the current value is non-zero
authorIndan Zupancic <indan@nul.nu>
Wed, 12 Jan 2011 11:59:19 +0000 (11:59 +0000)
committerChris Wilson <chris@chris-wilson.co.uk>
Wed, 12 Jan 2011 20:24:50 +0000 (20:24 +0000)
commitc8303e7f3f3093c16ef0fa5f73280637c89d4368
tree9d75bf6845964bf6dbe6b59bc129ad45590dfd6f
parent833bcb00c478c674fda0aaea089c1a92abd2da01
drm/i915/panel: The backlight is enabled if the current value is non-zero

... and not if the maximum is non-zero. This fixes the typo introduced
in 47356eb6728501452 and preserves the backlight value from boot.

[ickle: My thanks also to Indan Zupancic for diagnosing the original
        regression and suggesting the appropriate fix.]
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org # after 47356eb6728501452
drivers/gpu/drm/i915/intel_panel.c