linux/drivers/acpi/video.c, branch v2.6.39-rc2

acpi: Remove sysfs_create_link from video driver

2011-03-28T20:05:29Z

The acpi video driver attempts to explicitly create a sysfs link between the acpi device and the associated PCI device. However, we're now also doing this from the backlight core, which means that we get a backtrace caused by a duplicate file. Remove the code and leave it up to the backlight core. Reported-by: Jeff Chua Signed-off-by: Matthew Garrett Acked-by: Rafael J. Wysocki Tested-by: Alessandro Suardi Signed-off-by: Linus Torvalds

acpi: tie ACPI backlight devices to PCI devices if possible

2011-03-23T00:44:00Z

Dual-GPU machines may provide more than one ACPI backlight interface. Tie the backlight device to the GPU in order to allow userspace to identify the correct interface. Signed-off-by: Matthew Garrett Cc: Richard Purdie Cc: Chris Wilson Cc: David Airlie Cc: Alex Deucher Cc: Ben Skeggs Cc: Zhang Rui Cc: Len Brown Cc: Jesse Barnes Tested-by: Sedat Dilek Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

backlight: add backlight type

2011-03-23T00:43:59Z

There may be multiple ways of controlling the backlight on a given machine. Allow drivers to expose the type of interface they are providing, making it possible for userspace to make appropriate policy decisions. Signed-off-by: Matthew Garrett Cc: Richard Purdie Cc: Chris Wilson Cc: David Airlie Cc: Alex Deucher Cc: Ben Skeggs Cc: Zhang Rui Cc: Len Brown Cc: Jesse Barnes Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6

2011-01-14T04:15:35Z

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (59 commits) ACPI / PM: Fix build problems for !CONFIG_ACPI related to NVS rework ACPI: fix resource check message ACPI / Battery: Update information on info notification and resume ACPI: Drop device flag wake_capable ACPI: Always check if _PRW is present before trying to evaluate it ACPI / PM: Check status of power resources under mutexes ACPI / PM: Rename acpi_power_off_device() ACPI / PM: Drop acpi_power_nocheck ACPI / PM: Drop acpi_bus_get_power() Platform / x86: Make fujitsu_laptop use acpi_bus_update_power() ACPI / Fan: Rework the handling of power resources ACPI / PM: Register power resource devices as soon as they are needed ACPI / PM: Register acpi_power_driver early ACPI / PM: Add function for updating device power state consistently ACPI / PM: Add function for device power state initialization ACPI / PM: Introduce __acpi_bus_get_power() ACPI / PM: Introduce function for refcounting device power resources ACPI / PM: Add functions for manipulating lists of power resources ACPI / PM: Prevent acpi_power_get_inferred_state() from making changes ACPICA: Update version to 20101209 ...

Merge branch 'bugzilla-21212' into release

2011-01-12T10:09:35Z

ACPI video: introduce module parameter video.use_bios_initial_backlight

2010-12-14T05:10:46Z

Introduce module parameter video.use_bios_initial_backlight. Some BIOSes claim they use the minimum backlight at boot, and this may bring dimming screen after boot. https://bugzilla.kernel.org/show_bug.cgi?id=21212 use video.use_bios_initl_backlight=0 to use the maximum backlight level after boot. Signed-off-by: Zhang Rui Signed-off-by: Len Brown

ACPI video: check cap._DDC flag before getting EDID

2010-12-14T05:04:59Z

cap._DDC is defined but never used. Check this flag now and don't try to get EDID for video output devices with this flag cleared. Signed-off-by: Zhang Rui Signed-off-by: Len Brown

ACPI video: remove output switching control

2010-12-14T05:04:52Z

Remove the ACPI video output switching control as it never works. With the patch applied, ACPI video driver still catches the video output notification, but it does nothing but raises the notification to userspace. Signed-off-by: Zhang Rui Signed-off-by: Len Brown

backlight: constify backlight_ops

2010-11-16T13:14:02Z

backlight_device_register has been expecting a const "ops" argument, and using it as such, since 9905a43b2d563e6f89e4c63c4278ada03f2ebb14. Let's make the remaining backlight_ops instances const. Inspired by hunks of the grsecurity patch, updated for newer kernels. Signed-off-by: Lionel Debroux Acked-by: Ingo Molnar Signed-off-by: Jiri Kosina

ACPI video: remove deprecated procfs I/F

2010-10-16T02:03:08Z

Remove the deprecated ACPI video driver procfs I/F, as stated in the changelog of commit 6e37c658aefa57c472b2dbf1de88dbd3c67cdb52 New sysfs I/F is available at /sys/class/backlight/ Signed-off-by: Zhang Rui Signed-off-by: Len Brown