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

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (47 commits)
  ACPI: pci_link: remove acpi_irq_balance_set() interface
  fujitsu-laptop: Add DMI callback for Lifebook S6420
  ACPI: EC: Don't do transaction from GPE handler in poll mode.
  ACPI: EC: lower interrupt storm treshold
  ACPICA: Use spinlock for acpi_{en|dis}able_gpe
  ACPI: EC: restart failed command
  ACPI: EC: wait for last write gpe
  ACPI: EC: make kernel messages more useful when GPE storm is detected
  ACPI: EC: revert msleep patch
  thinkpad_acpi: fingers off backlight if video.ko is serving this functionality
  sony-laptop: fingers off backlight if video.ko is serving this functionality
  msi-laptop: fingers off backlight if video.ko is serving this functionality
  fujitsu-laptop: fingers off backlight if video.ko is serving this functionality
  eeepc-laptop: fingers off backlight if video.ko is serving this functionality
  compal: fingers off backlight if video.ko is serving this functionality
  asus-acpi: fingers off backlight if video.ko is serving this functionality
  Acer-WMI: fingers off backlight if video.ko is serving this functionality
  ACPI video: if no ACPI backlight support, use vendor drivers
  ACPI: video: Ignore devices that aren't present in hardware
  Delete an unwanted return statement at evgpe.c
  ...

1 files changed, 35 insertions, 52 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index c86c07459712..c600c4ffc657 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -198,59 +198,42 @@ and is between 256 and 4096 characters. It is defined in the file
                         that require a timer override, but don't have
                         HPET
 
-        acpi.debug_layer=       [HW,ACPI]
+        acpi_backlight= [HW,ACPI]
+                        acpi_backlight=vendor
+                        acpi_backlight=video
+                        If set to vendor, prefer vendor specific driver
+                        (e.g. thinkpad_acpi, sony_acpi, etc.) instead
+                        of the ACPI video.ko driver.
+
+        acpi_display_output=    [HW,ACPI]
+                        acpi_display_output=vendor
+                        acpi_display_output=video
+                        See above.
+
+        acpi.debug_layer=       [HW,ACPI,ACPI_DEBUG]
+        acpi.debug_level=       [HW,ACPI,ACPI_DEBUG]
                         Format: <int>
-                        Each bit of the <int> indicates an ACPI debug layer,
-                        1: enable, 0: disable. It is useful for boot time
-                        debugging. After system has booted up, it can be set
-                        via /sys/module/acpi/parameters/debug_layer.
-                        CONFIG_ACPI_DEBUG must be enabled for this to produce any output.
-                        Available bits (add the numbers together) to enable debug output
-                        for specific parts of the ACPI subsystem:
-                        0x01 utilities 0x02 hardware 0x04 events 0x08 tables
-                        0x10 namespace 0x20 parser 0x40 dispatcher
-                        0x80 executer 0x100 resources 0x200 acpica debugger
-                        0x400 os services 0x800 acpica disassembler.
-                        The number can be in decimal or prefixed with 0x in hex.
-                        Warning: Many of these options can produce a lot of
-                        output and make your system unusable. Be very careful.
-
-        acpi.debug_level=       [HW,ACPI]
-                        Format: <int>
-                        Each bit of the <int> indicates an ACPI debug level,
-                        which corresponds to the level in an ACPI_DEBUG_PRINT
-                        statement.  After system has booted up, this mask
-                        can be set via /sys/module/acpi/parameters/debug_level.
-
-                        CONFIG_ACPI_DEBUG must be enabled for this to produce
-                        any output.  The number can be in decimal or prefixed
-                        with 0x in hex.  Some of these options produce so much
-                        output that the system is unusable.
-
-                        The following global components are defined by the
-                        ACPI CA:
-                               0x01 error
-                               0x02 warn
-                               0x04 init
-                               0x08 debug object
-                               0x10 info
-                               0x20 init names
-                               0x40 parse
-                               0x80 load
-                              0x100 dispatch
-                              0x200 execute
-                              0x400 names
-                              0x800 operation region
-                             0x1000 bfield
-                             0x2000 tables
-                             0x4000 values
-                             0x8000 objects
-                            0x10000 resources
-                            0x20000 user requests
-                            0x40000 package
-                        The number can be in decimal or prefixed with 0x in hex.
-                        Warning: Many of these options can produce a lot of
-                        output and make your system unusable. Be very careful.
+                        CONFIG_ACPI_DEBUG must be enabled to produce any ACPI
+                        debug output.  Bits in debug_layer correspond to a
+                        _COMPONENT in an ACPI source file, e.g.,
+                            #define _COMPONENT ACPI_PCI_COMPONENT
+                        Bits in debug_level correspond to a level in
+                        ACPI_DEBUG_PRINT statements, e.g.,
+                            ACPI_DEBUG_PRINT((ACPI_DB_INFO, ...
+                        See Documentation/acpi/debug.txt for more information
+                        about debug layers and levels.
+
+                        Enable AML "Debug" output, i.e., stores to the Debug
+                        object while interpreting AML:
+                            acpi.debug_layer=0xffffffff acpi.debug_level=0x2
+                        Enable PCI/PCI interrupt routing info messages:
+                            acpi.debug_layer=0x400000 acpi.debug_level=0x4
+                        Enable all messages related to ACPI hardware:
+                            acpi.debug_layer=0x2 acpi.debug_level=0xffffffff
+
+                        Some values produce so much output that the system is
+                        unusable.  The "log_buf_len" parameter may be useful
+                        if you need to capture more output.
 
         acpi.power_nocheck=     [HW,ACPI]
                         Format: 1/0 enable/disable the check of power state.