Commit Graph

82529 Commits

Author SHA1 Message Date
Rod Whitby
0929ac3ea4 [ARM] 4807/2: ixp4xx: Merge nslu2-power.c into nslu2-setup.c
There is no reason to have power control in a separate file from the
board setup code.  Merge it back into the board setup file, removing
superfluous header includes and removing superfluous constants from
the machine header file.

--

Signed-off-by: Rod Whitby <rod@whitby.id.au>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-02-04 13:15:26 +00:00
Rod Whitby
b7edc84a96 [ARM] 4806/1: ixp4xx: Ethernet support for the nslu2 and nas100d boards
Enables the new ixp4xx qmgr and npe drivers in ixp4xx_defconfig.

Sets up the corresponding platform data for the nslu2 and nas100d
boards, and reads the ethernet MAC address from the internal flash.

Tested on both little-endian and big-endian kernels.

Tested-by: Tom King <tom@websb.net>

Signed-off-by: Rod Whitby <rod@whitby.id.au>
Signed-off-by: Michael Westerhof <mwester@dls.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-02-04 13:15:26 +00:00
Rod Whitby
1208ebf25b [ARM] 4805/1: ixp4xx: Use leds-gpio driver instead of IXP4XX-GPIO-LED driver
These are the only three boards to use the IXP4XX-GPIO-LED driver, and
they can all use the new leds-gpio driver instead with no change in
functionality.

--

Signed-off-by: Rod Whitby <rod@whitby.id.au>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-02-04 13:15:26 +00:00
Rod Whitby
7822591370 [ARM] 4715/2: Ethernet support for IXDP425 boards
Adds IXDP425 platform support for two built-in 10/100 Ethernet ports.

This patch will do nothing until the actual Ethernet driver is
also included.

Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-02-04 13:15:25 +00:00
Krzysztof Halasa
80bbdd27e4 [ARM] 4714/2: Headers for IXP4xx built-in Ethernet and WAN drivers
Adds platform structs and #defines required by drivers for
IXP4xx built-in Ethernet and WAN (sync serial) ports.

The actual drivers will reside in drivers/net/arm and
drivers/net/wan and will be submitted separately.

Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Rod Whitby <rod@whitby.id.au>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-02-04 13:15:25 +00:00
Krzysztof Halasa
82a96f5790 [ARM] 4713/3: Adds drivers for IXP4xx QMgr and NPE features
This patch adds drivers for IXP4xx hardware Queue Manager and for
Network Processor Engines. Requires patch #4712 (reading/writing
CPU feature (aka fuse) bits).

Posted to linux-arm-kernel on 2 Dec 2007 and revised.

Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-02-04 13:15:25 +00:00
Krzysztof Halasa
c18f65816e [ARM] 4712/2: Adds functions to read and write IXP4xx "feature" bits
Adds functions to read and write IXP4xx "feature" (aka "fuse")
bits, containing information about available/enabled CPU features.

The uncompress.h included by boot/compressed/misc.c resides in
a different space than rest of the kernel and thus can't use
asm/hardware.h (including asm/arch/cpu.h - which, in turn, may use
EXPORTed symbol "processor_id").

Posted to linux-arm-kernel on 2 Dec 2007 and revised.

Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-02-04 13:15:25 +00:00
Rod Whitby
a9a424ce9a [ARM] 4774/2: ixp4xx: Register dsmg600 rtc i2c_board_info
Register the i2c board info related to the RTC chip on the dsmg600
board to allow it to be found automatically on boot.

Signed-off-by: Rod Whitby <rod@whitby.id.au>
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-02-04 13:15:24 +00:00
Rod Whitby
400d823148 [ARM] 4773/2: ixp4xx: Register nas100d rtc i2c_board_info
Register the i2c board info related to the RTC chip on the nas100d
board to allow it to be found automatically on boot.

Signed-off-by: Rod Whitby <rod@whitby.id.au>
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-02-04 13:15:24 +00:00
Rod Whitby
e28067d533 [ARM] 4772/2: ixp4xx: Register nslu2 rtc i2c_board_info
Register the i2c board info related to the RTC chip on the nslu2 board
to allow it to be found automatically on boot.

Signed-off-by: Rod Whitby <rod@whitby.id.au>
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-02-04 13:15:24 +00:00
Rod Whitby
2bea80187f [ARM] 4769/2: ixp4xx: Button updates for the dsmg600 board
* Remove the superfluous declaration of ctrl_alt_del().
 * Convert GPIO and IRQ handling to use the <asm/gpio.h> api.
 * Perform the reset on the release of the power button, so that
   NAS devices which have been set to auto-power-on (by solder
   bridging the power button) do not continuously power cycle.
 * Remove all superflous constants from dsmg600.h

Signed-off-by: Rod Whitby <rod@whitby.id.au>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-02-04 13:15:24 +00:00
Rod Whitby
14645ebabd [ARM] 4768/2: ixp4xx: Button and LED updates for the nas100d board
* Convert GPIO and IRQ handling to use the <asm/gpio.h> api.
 * Perform the reset only after the power button has been held down
   for at least two seconds.  Do the reset on the release of the power
   button, so that NAS devices which have been set to auto-power-on (by
   solder bridging the power button) do not continuously power cycle.
 * Remove all superflous constants from nas100d.h
 * Add LED constants to nas100d.h while we're there.
 * Update the board LED setup code to use those constants.

Signed-off-by: Rod Whitby <rod@whitby.id.au>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-02-04 13:15:23 +00:00
Rod Whitby
8e93675e5b [ARM] 4767/2: ixp4xx: Add bitops.h include to io.h
Add include of <linux/bitops.h> to io.h to solve compilations errors in
files such as drivers/w1/w1_io.c caused by the ixp4xx version of io.h
using the BIT() macro without including <linux/bitops.h> first.

Signed-off-by: Rod Whitby <rod@whitby.id.au>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-02-04 13:15:23 +00:00
Rod Whitby
95053aec4d [ARM] 4766/2: ixp4xx: Update ixp4xx_defconfig, enabling all supported boards
This updates the defconfig for the ixp4xx machine in arch/arm/config
taking all the defaults, with the following additions:

1) Enable support for the nslu2, loft, gateway7001, wg302v2,
   dsmg600, and gtwx5715 boards.
2) Enable EABI, OABI, HOTPLUG and FW_LOADER.
3) Enable the RTC subsystem, with drivers for the RTC chips on the
   nslu2 (x1205) and nas100d/dsmg600 (pcf8563) boards.
4) Enable the LEDS subsystem to support the nslu2, nas100d and
   dsmg600 boards.  Enable the ixp4xx beeper driver.
5) Enable the USB subsystem, USB host driver support and USB mass
   storage support (required for boot disk on nslu2 board).
6) Enable the ATA subsystem, with drivers for the nas100d/dsmg600
   (pata_artop) and avila (ixp4xx_cf) boards.

Signed-off-by: Rod Whitby <rod@whitby.id.au>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-02-04 13:15:23 +00:00
Linus Torvalds
ae9458d6a0 Merge git://git.infradead.org/battery-2.6
* git://git.infradead.org/battery-2.6:
  apm_power: check I.intval for zero value, we use it as the divisor
  MAINTAINERS: remove kernel-discuss@handhelds.org list
  pda_power: implement polling
  pda_power: various cleanups
  apm_power: support using VOLTAGE_* properties for apm calculations
  pda_power: add suspend/resume support
  power_supply: add few more values and props
  pda_power: only register available psu
  power: fix incorrect unregistration in power_supply_create_attrs error path
  power: remove POWER_SUPPLY_PROP_CAPACITY_LEVEL
  [BATTERY] power_supply_leds: use kasprintf
  [BATTERY] Every file should include the headers containing the prototypes for its global functions.
2008-02-02 15:13:05 +11:00
Linus Torvalds
63e9b66e29 Merge branch 'for-linus' of git://linux-nfs.org/~bfields/linux
* 'for-linus' of git://linux-nfs.org/~bfields/linux: (100 commits)
  SUNRPC: RPC program information is stored in unsigned integers
  SUNRPC: Move exported symbol definitions after function declaration part 2
  NLM: tear down RPC clients in nlm_shutdown_hosts
  SUNRPC: spin svc_rqst initialization to its own function
  nfsd: more careful input validation in nfsctl write methods
  lockd: minor log message fix
  knfsd: don't bother mapping putrootfh enoent to eperm
  rdma: makefile
  rdma: ONCRPC RDMA protocol marshalling
  rdma: SVCRDMA sendto
  rdma: SVCRDMA recvfrom
  rdma: SVCRDMA Core Transport Services
  rdma: SVCRDMA Transport Module
  rdma: SVCRMDA Header File
  svc: Add svc_xprt_names service to replace svc_sock_names
  knfsd: Support adding transports by writing portlist file
  svc: Add svc API that queries for a transport instance
  svc: Add /proc/sys/sunrpc/transport files
  svc: Add transport hdr size for defer/revisit
  svc: Move the xprt independent code to the svc_xprt.c file
  ...
2008-02-02 14:31:28 +11:00
Linus Torvalds
687fcdf741 Merge branch 'suspend' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'suspend' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (38 commits)
  suspend: cleanup reference to swsusp_pg_dir[]
  PM: Remove obsolete /sys/devices/.../power/state docs
  Hibernation: Invoke suspend notifications after console switch
  Suspend: Invoke suspend notifications after console switch
  Suspend: Clean up suspend_64.c
  Suspend: Add config option to disable the freezer if architecture wants that
  ACPI: Print message before calling _PTS
  ACPI hibernation: Call _PTS before suspending devices
  Hibernation: Introduce begin() and end() callbacks
  ACPI suspend: Call _PTS before suspending devices
  ACPI: Separate disabling of GPEs from _PTS
  ACPI: Separate invocations of _GTS and _BFS from _PTS and _WAK
  Suspend: Introduce begin() and end() callbacks
  suspend: fix ia64 allmodconfig build
  ACPI: clear GPE earily in resume to avoid warning
  Suspend: Clean up Kconfig (V2)
  Hibernation: Clean up Kconfig (V2)
  Hibernation: Update messages
  Suspend: Use common prefix in messages
  Hibernation: Remove unnecessary variable declaration
  ...
2008-02-02 14:29:57 +11:00
Linus Torvalds
215e871aaa Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6: (64 commits)
  PCI: make pci_bus a struct device
  PCI: fix codingstyle issues in include/linux/pci.h
  PCI: fix codingstyle issues in drivers/pci/pci.h
  PCI: PCIE ASPM support
  PCI: Fix fakephp deadlock
  PCI: modify SB700 SATA MSI quirk
  PCI: Run ACPI _OSC method on root bridges only
  PCI ACPI: AER driver should only register PCIe devices with _OSC
  PCI ACPI: Added a function to register _OSC with only PCIe devices.
  PCI: constify function pointer tables
  PCI: Convert drivers/pci/proc.c to use unlocked_ioctl
  pciehp: block new requests from the device before power off
  pciehp: workaround against Bad DLLP during power off
  pciehp: wait for 1000ms before LED operation after power off
  PCI: Remove pci_enable_device_bars() from documentation
  PCI: Remove pci_enable_device_bars()
  PCI: Remove users of pci_enable_device_bars()
  PCI: Add pci_enable_device_{io,mem} intefaces
  PCI: avoid save the same type of cap multiple times
  PCI: correctly initialize a structure for pcie_save_pcix_state()
  ...
2008-02-02 14:29:33 +11:00
Linus Torvalds
b6cf160c4b Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (128 commits)
  USB: fix codingstyle issues in drivers/usb/core/*.c
  USB: fix codingstyle issues in drivers/usb/core/message.c
  USB: fix codingstyle issues in drivers/usb/core/hcd-pci.c
  USB: fix codingstyle issues in drivers/usb/core/devio.c
  USB: fix codingstyle issues in drivers/usb/core/devices.c
  USB: fix codingstyle issues in drivers/usb/core/*.h
  USB: fix codingstyle issues in include/linux/usb/
  USB: fix codingstyle issues in include/linux/usb.h
  USB: mark USB drivers as being GPL only
  USB: use a real vendor and product id for root hubs
  USB: mount options: fix usbfs
  USB: Fix usb_serial_driver structure for Kobil cardreader driver.
  usb: ehci should use u16 for isochronous intervals
  usb: ehci, remove false clear-reset path
  USB: Use menuconfig objects
  usb: ohci-sm501 driver
  usb: dma bounce buffer support
  USB: last abuses of intfdata in close for usb-serial drivers
  USB: kl5kusb105 don't flush to logically disconnected devices
  USB: oti6858: cleanup
  ...
2008-02-02 14:28:57 +11:00
Peter Zijlstra
ed50d6cbc3 debug: softlockup looping fix
Rafael J. Wysocki reported weird, multi-seconds delays during
suspend/resume and bisected it back to:

  commit 82a1fcb902
  Author: Ingo Molnar <mingo@elte.hu>
  Date:   Fri Jan 25 21:08:02 2008 +0100

      softlockup: automatically detect hung TASK_UNINTERRUPTIBLE tasks

fix it:

 - restore the old wakeup mechanism
 - fix break usage in do_each_thread() { } while_each_thread().
 - fix the hotplug switch stmt, a fall-through case was broken.

Bisected-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Tested-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-02 14:27:45 +11:00
Anton Vorontsov
e91926e9ea apm_power: check I.intval for zero value, we use it as the divisor
Signed-off-by: Anton Vorontsov <cbou@mail.ru>
2008-02-02 02:44:34 +03:00
Anton Vorontsov
ae4bb15290 MAINTAINERS: remove kernel-discuss@handhelds.org list
kernel-discuss at handhelds.org is down for months, and nobody
knows why. So remove it for now.

Signed-off-by: Anton Vorontsov <cbou@mail.ru>
2008-02-02 02:44:34 +03:00
Anton Vorontsov
c3caebad74 pda_power: implement polling
Signed-off-by: Anton Vorontsov <cbou@mail.ru>
2008-02-02 02:44:34 +03:00
Anton Vorontsov
bfde2662ae pda_power: various cleanups
- handle spurious interrupts correctly;
- get rid of pda_power_supplies array, use two variables instead;
- factor out psy_changed() function, it will be used for polling.

Signed-off-by: Anton Vorontsov <cbou@mail.ru>
2008-02-02 02:44:34 +03:00
Dmitry Baryshkov
dffd28a13a apm_power: support using VOLTAGE_* properties for apm calculations
It's pretty dummy, but useful for batteries for which we can only
get voltages.

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: Anton Vorontsov <cbou@mail.ru>
2008-02-02 02:44:34 +03:00
Dmitry Baryshkov
8f8e9b387e pda_power: add suspend/resume support
Add suspend/resume/wakeup support for pda_power.

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: Anton Vorontsov <cbou@mail.ru>
2008-02-02 02:43:00 +03:00
Dmitry Baryshkov
c7cc930f9a power_supply: add few more values and props
Add LiMn (one of the most common for small non-rechargable batteries)
battery technology and voltage_min/_max properties support.

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: Anton Vorontsov <cbou@mail.ru>
2008-02-02 02:43:00 +03:00
Dmitry Baryshkov
9ef4510626 pda_power: only register available psu
Currently pda-power adds both ac and usb power supply units.
This patch fixes it so that psu are added only if they are enabled.

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: Anton Vorontsov <cbou@mail.ru>
2008-02-02 02:42:59 +03:00
Andres Salomon
839dc9f105 power: fix incorrect unregistration in power_supply_create_attrs error path
In power_supply_create_attrs(), we create static attributes as referenced
by power_supply_static_attrs[i].  After that, if we fail, we unregister
via power_supply_static_attrs[psy->properties[i]].  This is incorrect, as
psy->properties has absolutely no bearing on static attribs.  This patch
fixes it to unregister the correct attrib.

Another line which was unnecessarily line wrapped is also unwrapped.

Signed-off-by: Andres Salomon <dilinger@debian.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-02-02 02:42:59 +03:00
Andres Salomon
8efe444038 power: remove POWER_SUPPLY_PROP_CAPACITY_LEVEL
The CAPACITY_LEVEL stuff defines various levels of charge; however, what
is the difference between them?  What differentiates between HIGH and NORMAL,
LOW and CRITICAL, etc?

As it appears that these are fairly arbitrary, we end up making such policy
decisions in the kernel (or in hardware).  This is the sort of decision that
should be made in userspace, not in the kernel.

If the hardware does not support _CAPACITY and it cannot be easily calculated,
then perhaps the driver should register a custom CAPACITY_LEVEL attribute;
however, userspace should not become accustomed to looking for such a thing,
and we should certainly not encourage drivers to provide CAPACITY_LEVEL
stubs.

The following removes support for POWER_SUPPLY_PROP_CAPACITY_LEVEL.  The
OLPC battery driver is the only driver making use of this, so it's
removed from there as well.

Signed-off-by: Andres Salomon <dilinger@debian.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-02-02 02:42:59 +03:00
Akinobu Mita
4d24473c43 [BATTERY] power_supply_leds: use kasprintf
Use kasprintf instead of kmalloc()-strcpy()-strcat().

Cc: Anton Vorontsov <cbou@mail.ru>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Anton Vorontsov <cbou@mail.ru>
2008-02-02 02:42:59 +03:00
Adrian Bunk
25f12141e2 [BATTERY] Every file should include the headers containing the prototypes for its global functions.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Anton Vorontsov <cbou@mail.ru>
2008-02-02 02:42:58 +03:00
Rafael J. Wysocki
a6eb84bc1e suspend: cleanup reference to swsusp_pg_dir[]
swsusp_pg_dir[] is used for suspend, but not for hibernation.
clean-up the ifdefs which worked by accident, while implying the opposite.
Delete the __nosavedata, which also implied the opposite.

Some day we may optimize CONFIG_ACPI_SLEEP to build minimal kernels
for just hibernate or just suspend but not both,
but today isn't that day.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 18:30:59 -05:00
David Brownell
ffffa4b502 PM: Remove obsolete /sys/devices/.../power/state docs
The /sys/devices/.../power/state files have been gone for a while
now, but I just noticed some documentation that still refers to
them.  (Fortunately described as DEPRECATED and WILL REMOVE).

Time to remove that obsolete documentation too ...

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 18:30:59 -05:00
Rafael J. Wysocki
5a0a2f3046 Hibernation: Invoke suspend notifications after console switch
Following the recent change in the suspend code path, switch consoles before
calling PM notifiers during hibernation.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 18:30:59 -05:00
Johannes Berg
af258f516b Suspend: Invoke suspend notifications after console switch
In order to fix APM emulation it is necessary to enable apm-emulation
notifications for suspends triggered in various ways via the suspend
notifiers.  However, this will cause the systems using APM emulation
to lock up between X being needed to switch away from the VT and X
already waiting for resume in the APM ioctl.

This patch moves the console switch (if enabled) before the suspend
notification (and after the resume notification) to avoid this issue.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 18:30:58 -05:00
Borislav Petkov
17b7a89cfb Suspend: Clean up suspend_64.c
There's a freakishly long comment in suspend_64.c, shorten it.

Signed-off-by: Borislav Petkov <bbpetkov@yahoo.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 18:30:58 -05:00
Johannes Berg
b28f508112 Suspend: Add config option to disable the freezer if architecture wants that
This patch makes the freezer optional for suspend to allow the
system to work (or not work) like the original PMU suspend.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 18:30:58 -05:00
Rafael J. Wysocki
c9b6c8f68e ACPI: Print message before calling _PTS
Make acpi_sleep_prepare() static and cause it to print a message
specifying the ACPI system sleep state to be entered (helpful for
debugging the suspend/hibernation code).

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 18:30:58 -05:00
Rafael J. Wysocki
7258ec5d11 ACPI hibernation: Call _PTS before suspending devices
The ACPI 1.0 specification wants us to put devices into low power
states after executing the _PTS global control method, while ACPI
2.0 and later want us to do that in the reverse order.  The current
hibernation code follows ACPI 2.0 in that respect which may cause some
ACPI 1.0x systems to hang during hibernation (ref.
http://bugzilla.kernel.org/show_bug.cgi?id=9528).

Make the hibernation code execute _PTS before putting devices into
low power states (ie. in accordance with ACPI 1.0x) with the
possibility to override that using the 'acpi_new_pts_ordering' kernel
command line option.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 18:30:58 -05:00
Rafael J. Wysocki
caea99ef33 Hibernation: Introduce begin() and end() callbacks
Introduce global hibernation callback .end() and rename global
hibernation callback .start() to .begin(), in analogy with the
recent modifications of the global suspend callbacks.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 18:30:58 -05:00
Rafael J. Wysocki
60417f5976 ACPI suspend: Call _PTS before suspending devices
The ACPI 1.0 specification wants us to put devices into low power
states after executing the _PTS global control method, while ACPI
2.0 and later want us to do that in the reverse order.  The current
suspend code follows ACPI 2.0 in that respect which causes some
ACPI 1.0x systems to hang during suspend (ref.
http://bugzilla.kernel.org/show_bug.cgi?id=9528).

Make the suspend code execute _PTS before putting devices into low
power states (ie. in accordance with ACPI 1.0x) and provide a command
line option to override the default if need be.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 18:30:58 -05:00
Rafael J. Wysocki
3c1d2b6085 ACPI: Separate disabling of GPEs from _PTS
The preparation to enter an ACPI system sleep state is now tied to
the disabling of GPEs, but the GPEs should not be disabled before
suspending devices.  Since on ACPI 1.0x systems the _PTS global
control method should be executed before suspending devices, we
need to disable GPEs separately.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 18:30:56 -05:00
Rafael J. Wysocki
c95d47a868 ACPI: Separate invocations of _GTS and _BFS from _PTS and _WAK
The execution of ACPI global control methods _GTS and _BFS is
currently tied to the preparation to enter a sleep state and to the
leaving of the sleep state, respectively.  However, these functions
are called before disabling the nonboot CPUs and after enabling
them, respectively (in fact, on ACPI 1.0x systems the first of them
ought to be called before suspending devices), while according to the
ACPI specification, _GTS is to be executed right prior to entering
the system sleep state and _BFS is to be executed right after the
platfor firmware has returned control to the OS on wake up.

Move the execution of _GTS and _BFS to the right places.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 18:30:56 -05:00
Rafael J. Wysocki
c697eecebc Suspend: Introduce begin() and end() callbacks
On ACPI systems the target state set by acpi_pm_set_target() is
reset by acpi_pm_finish(), but that need not be called if the
suspend fails.  All platforms that use the .set_target() global
suspend callback are affected by analogous issues.

For this reason, we need an additional global suspend callback that
will reset the target state regardless of whether or not the suspend
is successful.  Also, it is reasonable to rename the .set_target()
callback, since it will be used for a different purpose on ACPI
systems (due to ACPI 1.0x code ordering requirements).

Introduce the global suspend callback .end() to be executed at the
end of the suspend sequence and rename the .set_target() global
suspend callback to .begin().

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 18:30:56 -05:00
Rafael J. Wysocki
7671b8ae53 suspend: fix ia64 allmodconfig build
kernel/power/main.c:488: error: ‘pm_test_attr’ undeclared here (not in a function)

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 18:30:56 -05:00
Shaohua Li
a3627f67b1 ACPI: clear GPE earily in resume to avoid warning
Wakeup GPE hasn't a handler. If system is waked up by such GPE like a
USB hotplug, I saw a lot of error reporting the GPE hasn't handler.
acpi_leave_sleep_state will clear the GPE but it's too late, we should
do it before interrupt is re-enabled.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 18:30:55 -05:00
Johannes Berg
f4cb570076 Suspend: Clean up Kconfig (V2)
This cleans up the suspend Kconfig and removes the need to
declare centrally which architectures support suspend. All
architectures that currently support suspend are modified
accordingly.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Russell King <rmk@arm.linux.org.uk>
Acked-by: Paul Mackerras <paulus@samba.org>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Cc: Pavel Machek <pavel@suse.cz>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 18:30:55 -05:00
Johannes Berg
801e4062fd Hibernation: Clean up Kconfig (V2)
This cleans up the hibernation Kconfig and removes the need to
declare centrally which architectures support hibernation. All
architectures that currently support hibernation are modified
accordingly.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Paul Mackerras <paulus@samba.org>
Cc: Pavel Machek <pavel@suse.cz>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 18:30:55 -05:00
Rafael J. Wysocki
23976728a4 Hibernation: Update messages
Make hibernation messages start with one common prefix "PM: " and use
the word "hibernation" in the messages as a synonym of "suspend to
disk".

Turn some KERN_INFO messages into debug ones.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-01 18:30:55 -05:00