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authorMatthew Garrett <mjg@redhat.com>2011-07-12 18:30:52 -0400
committerKeith Packard <keithp@keithp.com>2011-07-13 11:19:47 -0700
commitf5a3d0c4086d1854cbda545092c462b84cba20ce (patch)
treea7ff24f477c618a7680bc617f12366656a0afe23 /include/acpi
parent2bf71160f94270319eb965935045f825ec446e8a (diff)
downloadop-kernel-dev-f5a3d0c4086d1854cbda545092c462b84cba20ce.zip
op-kernel-dev-f5a3d0c4086d1854cbda545092c462b84cba20ce.tar.gz
i915: Fix opregion notifications
opregion-based platforms will send ACPI video event 0x80 for a range of notification types for legacy compatibility. This is interpreted as a display switch event, which may not be appropriate in the circumstances. When we receive such an event we should make sure that the platform is genuinely requesting a display switch before passing that event through to userspace. Signed-off-by: Matthew Garrett <mjg@redhat.com> Tested-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'include/acpi')
-rw-r--r--include/acpi/video.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/acpi/video.h b/include/acpi/video.h
index 0e98e67..61109f2 100644
--- a/include/acpi/video.h
+++ b/include/acpi/video.h
@@ -5,6 +5,8 @@
struct acpi_device;
+#define ACPI_VIDEO_CLASS "video"
+
#define ACPI_VIDEO_DISPLAY_CRT 1
#define ACPI_VIDEO_DISPLAY_TV 2
#define ACPI_VIDEO_DISPLAY_DVI 3
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