Add quirk for Mac Pro backlight (rhbz 1217249)

acpi_video-Add-enable_native_backlight-quirk-for-Mac.patch

@@ -0,0 +1,37 @@
+From: Hans de Goede <hdegoede@redhat.com>
+Date: Thu, 28 May 2015 18:25:46 +0200
+Subject: [PATCH] acpi_video: Add enable_native_backlight quirk for
+ MacbookPro12,1
+
+It seems that the latest generation of MacbookPro needs to use the
+native backlight driver, just like most modern laptops do, but it does
+not automatically get enabled as the Apple BIOS does not advertise
+Windows 8 compatibility. So add a quirk for this.
+
+Cc: Christopher Beland <beland@alum.mit.edu>
+Reported-by: Christopher Beland <beland@alum.mit.edu>
+Signed-off-by: Hans de Goede <hdegoede@redhat.com>
+---
+ drivers/acpi/video.c | 9 +++++++++
+ 1 file changed, 9 insertions(+)
+
+diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
+index d9bf8ba7d848..b57d69370bac 100644
+--- a/drivers/acpi/video.c
++++ b/drivers/acpi/video.c
+@@ -583,6 +583,15 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
+ 		DMI_MATCH(DMI_PRODUCT_NAME, "102434U"),
+ 		},
+ 	},
++	{
++	 /* https://bugzilla.redhat.com/show_bug.cgi?id=1217249 */
++	 .callback = video_enable_native_backlight,
++	 .ident = "Apple MacBook Pro 12,1",
++	 .matches = {
++		DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
++		DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro12,1"),
++		},
++	},
+ 	{}
+ };
+ 

kernel.spec

@@ -609,6 +609,9 @@ Patch26202: media-Fix-regression-in-some-more-dib0700-based-devi.patch
 
 Patch26203: v4l-uvcvideo-Fix-incorrect-bandwidth-with-Chicony-de.patch
 
+#rhbz 1217249
+Patch26214: acpi_video-Add-enable_native_backlight-quirk-for-Mac.patch
+
 # END OF PATCH DEFINITIONS
 
 %endif
@@ -1336,6 +1339,9 @@ ApplyPatch media-Fix-regression-in-some-more-dib0700-based-devi.patch
 
 ApplyPatch v4l-uvcvideo-Fix-incorrect-bandwidth-with-Chicony-de.patch
 
+#rhbz 1217249
+ApplyPatch acpi_video-Add-enable_native_backlight-quirk-for-Mac.patch
+
 # END OF PATCH APPLICATIONS
 
 %endif
@@ -2196,6 +2202,9 @@ fi
 #
 # 
 %changelog
+* Thu May 28 2015 Josh Boyer <jwboyer@fedoraproject.org>
+- Add quirk for Mac Pro backlight (rhbz 1217249)
+
 * Mon May 25 2015 Josh Boyer <jwboyer@fedoraproject.org> - 4.1.0-0.rc5.git0.1
 - Linux v4.1-rc5
 - Disable debugging options.