diff options
| -rw-r--r-- | libre/linux-libre/3.4.4-fix-backlight-regression.patch | 38 |
1 files changed, 0 insertions, 38 deletions
diff --git a/libre/linux-libre/3.4.4-fix-backlight-regression.patch b/libre/linux-libre/3.4.4-fix-backlight-regression.patch deleted file mode 100644 index a0cf0b1db..000000000 --- a/libre/linux-libre/3.4.4-fix-backlight-regression.patch +++ /dev/null @@ -1,38 +0,0 @@ -Subject: Still use ACPI backlight control if _DOS doesn't exist - -This is a regression introduced by commit -ea9f8856bd6d4ed45885b06a338f7362cd6c60e5 - -https://bugzilla.kernel.org/show_bug.cgi?id=43168 - -Some platforms don't have _DOS control method, but the ACPI -backlight still works. -We do not want to lose the backlight control ability on these platforms. - -CC : Igor Murzov <intergalactic.anonymous@gmail.com> -Signed-off-by: Zhang Rui <rui.zhang@intel.com> ---- - drivers/acpi/video.c | 10 ++++++++-- - 1 file changed, 8 insertions(+), 2 deletions(-) - -Index: rtd3/drivers/acpi/video.c -=================================================================== ---- rtd3.orig/drivers/acpi/video.c -+++ rtd3/drivers/acpi/video.c -@@ -565,8 +565,14 @@ acpi_video_bus_DOS(struct acpi_video_bus - video->dos_setting = arg0.integer.value; - status = acpi_evaluate_object(video->device->handle, "_DOS", - &args, NULL); -- if (ACPI_FAILURE(status)) -- return -EIO; -+ if (ACPI_FAILURE(status)) { -+ /* -+ * some platforms don't have _DOS, but the ACPI -+ * backlight control still works -+ */ -+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No _DOS\n")); -+ return 0; -+ } - - return 0; - } |