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drm/i915: Register ACPI video even when not modesetting 

The ACPI video driver defers registration to the i915 driver if the
system supports opregion-mediated backlight control. This registration
was only being performed in the KMS case. Ensure it's done even if we
don't have modesetting enabled.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Matthew Garrett 2009-04-15 21:46:36 +01:00 committed by Eric Anholt
parent 5b0bdd6f72
commit d770e3cfe5
1 changed files with 5 additions and 4 deletions
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9
drivers/gpu/drm/i915/i915_opregion.c
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@ -370,11 +370,8 @@ int intel_opregion_init(struct drm_device *dev, int resume)
if (mboxes & MBOX_ACPI) {
DRM_DEBUG("Public ACPI methods supported\n");
opregion->acpi = base + OPREGION_ACPI_OFFSET;
if (drm_core_check_feature(dev, DRIVER_MODESET)) {
if (drm_core_check_feature(dev, DRIVER_MODESET))
intel_didl_outputs(dev);
if (!resume)
acpi_video_register();
}
} else {
DRM_DEBUG("Public ACPI methods not supported\n");
err = -ENOTSUPP;
@ -391,6 +388,10 @@ int intel_opregion_init(struct drm_device *dev, int resume)
opregion->asle = base + OPREGION_ASLE_OFFSET;
}
if (!resume)
acpi_video_register();
/* Notify BIOS we are ready to handle ACPI video ext notifs.
* Right now, all the events are handled by the ACPI video module.
* We don't actually need to do anything with them. */