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Not all systems expose a firmware or platform mechanism for changing the backlight intensity on i915, so add native driver support.

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Signed-off-by: Matthew Garrett <mjg@redhat.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: David Airlie <airlied@linux.ie>
Cc: Alex Deucher <alexdeucher@gmail.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Len Brown <lenb@kernel.org>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Tested-by: Sedat Dilek <sedat.dilek@googlemail.com>
Tested-by: Michel Alexandre Salim <salimma@fedoraproject.org>
Tested-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Keith Packard <keithp@keithp.com>
This commit is contained in:
Matthew Garrett
2011-08-12 12:11:33 +02:00
committed by Keith Packard
parent 13d83a672e
commit aaa6fd2a00
6 changed files with 89 additions and 3 deletions
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5
drivers/gpu/drm/i915/intel_lvds.c
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@@ -552,6 +552,8 @@ static void intel_lvds_destroy(struct drm_connector *connector)
struct drm_device *dev = connector->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
intel_panel_destroy_backlight(dev);
if (dev_priv->lid_notifier.notifier_call)
acpi_lid_notifier_unregister(&dev_priv->lid_notifier);
drm_sysfs_connector_remove(connector);
@@ -1032,6 +1034,9 @@ out:
/* keep the LVDS connector */
dev_priv->int_lvds_connector = connector;
drm_sysfs_connector_add(connector);
intel_panel_setup_backlight(dev);
return true;
failed: