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 47356eb672 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 47356eb672
This commit is contained in:
Indan Zupancic 2011-01-12 11:59:19 +00:00 committed by Chris Wilson
parent 833bcb00c4
commit c8303e7f3f

View file

@ -278,6 +278,6 @@ void intel_panel_setup_backlight(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
dev_priv->backlight_level = intel_panel_get_max_backlight(dev);
dev_priv->backlight_level = intel_panel_get_backlight(dev);
dev_priv->backlight_enabled = dev_priv->backlight_level != 0;
}