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drm: i915: Port to new backlight interface selection API 

This results in a nice cleanup, as we can replace the complicated logic
from should_ignore_backlight_request() with a simple check for the type
being native.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Hans de Goede 2015-06-16 16:27:50 +02:00 committed by Rafael J. Wysocki
parent 5fd677b75d
commit da882e5acb
1 changed files with 1 additions and 11 deletions
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12
drivers/gpu/drm/i915/intel_opregion.c
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@ -396,16 +396,6 @@ int intel_opregion_notify_adapter(struct drm_device *dev, pci_power_t state)
return -EINVAL;
}
/*
* If the vendor backlight interface is not in use and ACPI backlight interface
* is broken, do not bother processing backlight change requests from firmware.
*/
static bool should_ignore_backlight_request(void)
{
return acpi_video_backlight_support() &&
!acpi_video_verify_backlight_support();
}
static u32 asle_set_backlight(struct drm_device *dev, u32 bclp)
{
struct drm_i915_private *dev_priv = dev->dev_private;
@ -414,7 +404,7 @@ static u32 asle_set_backlight(struct drm_device *dev, u32 bclp)
DRM_DEBUG_DRIVER("bclp = 0x%08x\n", bclp);
if (should_ignore_backlight_request()) {
if (acpi_video_get_backlight_type() == acpi_backlight_native) {
DRM_DEBUG_KMS("opregion backlight request ignored\n");
return 0;
}