| Commit message (Collapse) | Author | Age | Files | Lines |
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:
PM / Runtime: Add runtime PM statistics (v3)
PM / Runtime: Make runtime_status attribute not debug-only (v. 2)
PM: Do not use dynamically allocated objects in pm_wakeup_event()
PM / Suspend: Fix ordering of calls in suspend error paths
PM / Hibernate: Fix snapshot error code path
PM / Hibernate: Fix hibernation_platform_enter()
pm_qos: Get rid of the allocation in pm_qos_add_request()
pm_qos: Reimplement using plists
plist: Add plist_last
PM: Make it possible to avoid races between wakeup and system sleep
PNPACPI: Add support for remote wakeup
PM: describe kernel policy regarding wakeup defaults (v. 2)
PM / Hibernate: Fix typos in comments in kernel/power/swap.c
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In order for PowerTOP to be able to report how well the new runtime PM is
working for the various drivers, the kernel needs to export some basic
statistics in sysfs.
This patch adds two sysfs files in the runtime PM domain that expose the
total time a device has been active, and the time a device has been
suspended.
With this PowerTOP can compute the activity percentage
Active %age = 100 * (delta active) / (delta active + delta suspended)
and present the information to the user.
I've written the PowerTOP code (slated for version 1.12) already, and the
output looks like this:
Runtime Device Power Management statistics
Active Device name
10.0% 06:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller
[version 2: fix stat update bugs noticed by Alan Stern]
[version 3: rebase to -next and move the sysfs declaration]
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
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This patch (as1404b) makes the runtime_status sysfs attribute available
even in the absence of CONFIG_PM_ADVANCED_DEBUG, and it changes the
routine to display "unsupported" when runtime PM is disabled for a
device. Although not strictly 100% accurate, this will almost always
be correct.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
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Originally, pm_wakeup_event() uses struct delayed_work objects,
allocated with GFP_ATOMIC, to schedule the execution of pm_relax()
in future. However, as noted by Alan Stern, it is not necessary to
do that, because all pm_wakeup_event() calls can use one static timer
that will always be set to expire at the latest time passed to
pm_wakeup_event().
The modifications are based on the example code posted by Alan.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
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All current users of pm_qos_add_request() have the ability to supply
the memory required by the pm_qos routines, so make them do this and
eliminate the kmalloc() with pm_qos_add_request(). This has the
double benefit of making the call never fail and allowing it to be
called from atomic context.
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: mark gross <markgross@thegnar.org>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
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One of the arguments during the suspend blockers discussion was that
the mainline kernel didn't contain any mechanisms making it possible
to avoid races between wakeup and system suspend.
Generally, there are two problems in that area. First, if a wakeup
event occurs exactly when /sys/power/state is being written to, it
may be delivered to user space right before the freezer kicks in, so
the user space consumer of the event may not be able to process it
before the system is suspended. Second, if a wakeup event occurs
after user space has been frozen, it is not generally guaranteed that
the ongoing transition of the system into a sleep state will be
aborted.
To address these issues introduce a new global sysfs attribute,
/sys/power/wakeup_count, associated with a running counter of wakeup
events and three helper functions, pm_stay_awake(), pm_relax(), and
pm_wakeup_event(), that may be used by kernel subsystems to control
the behavior of this attribute and to request the PM core to abort
system transitions into a sleep state already in progress.
The /sys/power/wakeup_count file may be read from or written to by
user space. Reads will always succeed (unless interrupted by a
signal) and return the current value of the wakeup events counter.
Writes, however, will only succeed if the written number is equal to
the current value of the wakeup events counter. If a write is
successful, it will cause the kernel to save the current value of the
wakeup events counter and to abort the subsequent system transition
into a sleep state if any wakeup events are reported after the write
has returned.
[The assumption is that before writing to /sys/power/state user space
will first read from /sys/power/wakeup_count. Next, user space
consumers of wakeup events will have a chance to acknowledge or
veto the upcoming system transition to a sleep state. Finally, if
the transition is allowed to proceed, /sys/power/wakeup_count will
be written to and if that succeeds, /sys/power/state will be written
to as well. Still, if any wakeup events are reported to the PM core
by kernel subsystems after that point, the transition will be
aborted.]
Additionally, put a wakeup events counter into struct dev_pm_info and
make these per-device wakeup event counters available via sysfs,
so that it's possible to check the activity of various wakeup event
sources within the kernel.
To illustrate how subsystems can use pm_wakeup_event(), make the
low-level PCI runtime PM wakeup-handling code use it.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Acked-by: markgross <markgross@thegnar.org>
Reviewed-by: Alan Stern <stern@rowland.harvard.edu>
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This patch (as1354) adds remote-wakeup support to the pnpacpi driver.
The new can_wakeup method also allows other PNP protocol drivers
(pnpbios or iaspnp) to add wakeup support, but I don't know enough
about how they work to actually do it.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reviewed-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
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git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq:
[CPUFREQ] Remove pointless printk from p4-clockmod.
[CPUFREQ] Fix section mismatch for powernow_cpu_init in powernow-k7.c
[CPUFREQ] Fix section mismatch for longhaul_cpu_init.
[CPUFREQ] Fix section mismatch for longrun_cpu_init.
[CPUFREQ] powernow-k8: Fix misleading variable naming
[CPUFREQ] Convert pci_table entries to PCI_VDEVICE (if PCI_ANY_ID is used)
[CPUFREQ] arch/x86/kernel/cpu/cpufreq: use for_each_pci_dev()
[CPUFREQ] fix brace coding style issue.
[CPUFREQ] x86 cpufreq: Make trace_power_frequency cpufreq driver independent
[CPUFREQ] acpi-cpufreq: Fix CPU_ANY CPUFREQ_{PRE,POST}CHANGE notification
[CPUFREQ] ondemand: don't synchronize sample rate unless multiple cpus present
[CPUFREQ] unexport (un)lock_policy_rwsem* functions
[CPUFREQ] ondemand: Refactor frequency increase code
[CPUFREQ] powernow-k8: On load failure, remind the user to enable support in BIOS setup
[CPUFREQ] powernow-k8: Limit Pstate transition latency check
[CPUFREQ] Fix PCC driver error path
[CPUFREQ] fix double freeing in error path of pcc-cpufreq
[CPUFREQ] pcc driver should check for pcch method before calling _OSC
[CPUFREQ] fix memory leak in cpufreq_add_dev
[CPUFREQ] revert "[CPUFREQ] remove rwsem lock from CPUFREQ_GOV_STOP call (second call site)"
Manually fix up non-data merge conflict introduced by new calling
conventions for trace_power_start() in commit 6f4f2723d085 ("x86
cpufreq: Make trace_power_frequency cpufreq driver independent"), which
didn't update the intel_idle native hardware cpuidle driver.
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This patch fixes up a brace warning found by the checkpatch.pl tool
Signed-off-by: Neal Buckendahl <nealb001@tbcnet.com>
Signed-off-by: Dave Jones <davej@redhat.com>
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and fix the broken case if a core's frequency depends on others.
trace_power_frequency was only implemented in a rather ungeneric way
in acpi-cpufreq driver's target() function only.
-> Move the call to trace_power_frequency to
cpufreq.c:cpufreq_notify_transition() where CPUFREQ_POSTCHANGE
notifier is triggered.
This will support power frequency tracing by all cpufreq drivers
trace_power_frequency did not trace frequency changes correctly when
the userspace governor was used or when CPU cores' frequency depend
on each other.
-> Moving this into the CPUFREQ_POSTCHANGE notifier and pass the cpu
which gets switched automatically fixes this.
Robert Schoene provided some important fixes on top of my initial
quick shot version which are integrated in this patch:
- Forgot some changes in power_end trace (TP_printk/variable names)
- Variable dummy in power_end must now be cpu_id
- Use static 64 bit variable instead of unsigned int for cpu_id
Signed-off-by: Thomas Renninger <trenn@suse.de>
CC: davej@redhat.com
CC: arjan@infradead.org
CC: linux-kernel@vger.kernel.org
CC: robert.schoene@tu-dresden.de
Tested-by: robert.schoene@tu-dresden.de
Signed-off-by: Dave Jones <davej@redhat.com>
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For UP systems this is not required, and results in a more consistent
sample interval.
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Jocelyn Falempe <jocelyn.falempe@motorola.com>
Signed-off-by: Mike Chan <mike@android.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Jones <davej@redhat.com>
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lock_policy_rwsem_* and unlock_policy_rwsem_* functions are scheduled
to be unexported when 2.6.33. Now there are no other callers of them
out of cpufreq.c, unexport them and make them static.
Signed-off-by: WANG Cong <amwang@redhat.com>
Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Dave Jones <davej@redhat.com>
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Make simpler to read and call.
*** v3 - Always call when powersave_bias is enabled.
Acked-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Mike Chan <mike@android.com>
Signed-off-by: Dave Jones <davej@redhat.com>
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We didn't free policy->related_cpus in error path err_unlock_policy.
This is catched by following kmemleak report:
unreferenced object 0xffff88022a0b96d0 (size 512):
comm "modprobe", pid 886, jiffies 4294689177 (age 780.694s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffff8111ebe5>] create_object+0x186/0x281
[<ffffffff814fad4f>] kmemleak_alloc+0x60/0xa7
[<ffffffff8111127a>] kmem_cache_alloc_node_notrace+0x120/0x142
[<ffffffff81262e4f>] alloc_cpumask_var_node+0x2c/0xd7
[<ffffffff81262f0b>] alloc_cpumask_var+0x11/0x13
[<ffffffff81262f1c>] zalloc_cpumask_var+0xf/0x11
[<ffffffff8140fac0>] cpufreq_add_dev+0x11f/0x547
[<ffffffff81334bda>] sysdev_driver_register+0xc2/0x11d
[<ffffffff8140e334>] cpufreq_register_driver+0xcb/0x1b8
[<ffffffffa032e040>] 0xffffffffa032e040
[<ffffffff810021ba>] do_one_initcall+0x5e/0x15c
[<ffffffff81087f94>] sys_init_module+0xa6/0x1e6
[<ffffffff81009bc2>] system_call_fastpath+0x16/0x1b
[<ffffffffffffffff>] 0xffffffffffffffff
Signed-off-by: Xiaotian Feng <dfeng@redhat.com>
Cc: Thomas Renninger <trenn@suse.de>
Cc: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Dave Jones <davej@redhat.com>
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(second call site)"
395913d0b1db37092ea3d9d69b832183b1dd84c5 ("[CPUFREQ] remove rwsem lock
from CPUFREQ_GOV_STOP call (second call site)") is not needed, because
there is no rwsem lock in cpufreq_ondemand and cpufreq_conservative
anymore. Lock should not be released until the work done.
Addresses https://bugzilla.kernel.org/show_bug.cgi?id=1594
Signed-off-by: Andrej Gelenberg <andrej.gelenberg@udo.edu>
Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Dave Jones <davej@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86: (88 commits)
ips driver: make it less chatty
intel_scu_ipc: fix size field for intel_scu_ipc_command
intel_scu_ipc: return -EIO for error condition in busy_loop
intel_scu_ipc: fix data packing of PMIC command on Moorestown
Clean up command packing on MRST.
zero the stack buffer before giving random garbage to the SCU
Fix stack buffer size for IPC writev messages
intel_scu_ipc: Use the new cpu identification function
intel_scu_ipc: tidy up unused bits
Remove indirect read write api support.
intel_scu_ipc: Support Medfield processors
intel_scu_ipc: detect CPU type automatically
x86 plat: limit x86 platform driver menu to X86
acpi ec_sys: Be more cautious about ec write access
acpi ec: Fix possible double io port registration
hp-wmi: acpi_drivers.h is already included through acpi.h two lines below
hp-wmi: Fix mixing up of and/or directive
dell-laptop: make dell_laptop_i8042_filter() static
asus-laptop: fix asus_input_init error path
msi-wmi: make needlessly global symbols static
...
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We don't need a dev_warn when we exceed a thermal or power limit as
we'll handle it appropriately by clamping down on the CPU, GPU or both
as needed.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Size for PMIC read/write command is byte, while it is DWORD for other
IPC commands.
Signed-off-by: Hong Liu <hong.liu@intel.com>
Signed-off-by: ALan Cox <alan@linux.intel.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Signed-off-by: Hong Liu <hong.liu@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Data is 2-byte per entry for PMIC read-modify-update command.
Signed-off-by: Hong Liu <hong.liu@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Don't pass more bytes in the command length field than we filled.
Signed-off-by: Andy Ross <andy.ross@windriver.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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some messages take 4 bytes, but only fill 3 bytes....
this patch makes sure that whatever we send to the SCU is zeroed first
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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The stack buffer for IPC messages was 16 bytes, limiting messages to a
size of 4 (each message is 32 bit).
However, the touch screen driver is trying to send messages of size 5....
(AC: Set to 20 bytes having checked the max size allowed)
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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This provides an architecture level board identify function to replace the
cpuid direct usage
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Delete unused constants IPC_CMD_INDIRECT_RD and IPC_CMD_INDIRECT_WR
Remove multiple inclusion of header file "asm/mrst.h"
Signed-off-by: Sreedhara DS <sreedhara.ds@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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The firmware of production devices does not support this interface so this
is dead code.
Signed-off-by: Sreedhara DS <sreedhara.ds@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Changes to work on bothMmoorestown and Medfield
New pci id added for Medfield
Return type of ipc_data_readl chnaged from u8 to u32
Signed-off-by: Sreedhara DS <sreedhara.ds@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Intel SCU message formats depend upon the processor type. Replace the
module option with automatic detection of the processor type.
Signed-off-by: Sreedhara DS <sreedhara.ds@intel.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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My .config contains ACER_WMI=m. On SPARC. That does not make sense.
Restrict the x86 platform driver menu to x86.
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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- Set Kconfig option default n
- Only allow root to read/write io file (sever bug!)
- Introduce write support module param -> default off
- Properly clean up if any debugfs files cannot be created
Signed-off-by: Thomas Renninger <trenn@suse.de>
CC: mjg59@srcf.ucam.org
CC: platform-driver-x86@vger.kernel.org
CC: linux-acpi@vger.kernel.org
CC: astarikovskiy@suse.de
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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which will result in a harmless but ugly WARN message on
some machines.
Signed-off-by: Thomas Renninger <trenn@suse.de>
CC: mjg59@srcf.ucam.org
CC: platform-driver-x86@vger.kernel.org
CC: linux-acpi@vger.kernel.org
CC: astarikovskiy@suse.de
CC: akpm@linux-foundation.org
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Signed-off-by: Thomas Renninger <trenn@suse.de>
CC: linux-acpi@vger.kernel.or
CC: platform-driver-x86@vger.kernel.org
CC: mjg@redhat.com
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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This should have been an "and". Additionally checking for !obj
is even better.
Signed-off-by: Thomas Renninger <trenn@suse.de>
CC: linux-acpi@vger.kernel.or
CC: platform-driver-x86@vger.kernel.org
CC: mjg@redhat.com
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Make dell_laptop_i8042_filter() static as it's used only in dell-laptop.c
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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This patch includes below fixes:
1. return -ENOMEM instead of 0 if input_allocate_device fail.
2. fix wrong goto if sparse_keymap_setup fail.
3. fix wrong goto if input_register_device fail.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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backlight is needlessly defined global.
This patch makes the symbol static.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Anisse Astier <anisse@astier.eu>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Add support for Toshiba Illumination. This is a set of LEDs installed on
some Toshiba laptops. It is controlled through ACPI, the commands has been
found through reverse engineering. It has been tested on a Toshiba Qosmio
G50-122.
Signed-off-by: Pierre Ducroquet <pinaraf@pinaraf.info>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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compal-laptop uses power_supply interfaces so it should depend
on POWER_SUPPLY.
ERROR: "power_supply_register" [drivers/platform/x86/compal-laptop.ko] undefined!
ERROR: "power_supply_unregister" [drivers/platform/x86/compal-laptop.ko] undefined!
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Cezary Jackiewicz <cezary.jackiewicz@gmail.com>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: platform-driver-x86@vger.kernel.org
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Moorestown has PMIC chip which contains GPIO blocks. The PMIC chip is
connected to Langwell by SPI interface. So this GPIO driver will be regarded
as SPI GPIO expander though the actual GPIO access is through IPC and SRAM.
The SPI master contoller will probe this device driver by parsing SPIB table.
Cleaned up for new IPC, GPE removed and some printk and other tidying by
Alan Cox. Fixes for points noted by Matthew Garrett
Signed-off-by: Alek Du <alek.du@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Formerly these have been exposed through /proc/..
Better register them where all IO ports should get registered
and scream loud if someone else claims to use them.
EC data and command port typically should show up like this
then:
...
0060-0060 : keyboard
0062-0062 : EC data
0064-0064 : keyboard
0066-0066 : EC command
0070-0071 : rtc0
...
Signed-off-by: Thomas Renninger <trenn@suse.de>
CC: Alexey Starikovskiy <astarikovskiy@suse.de>
CC: Len Brown <lenb@kernel.org>
CC: linux-kernel@vger.kernel.org
CC: linux-acpi@vger.kernel.org
CC: Bjorn Helgaas <bjorn.helgaas@hp.com>
CC: platform-driver-x86@vger.kernel.org
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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A userspace app to easily read/write the EC can be found here:
ftp://ftp.suse.com/pub/people/trenn/sources/ec/ec_access.c
Multiple ECs are not supported, but shouldn't be hard to add as soon
as the ec driver itself will support them.
Signed-off-by: Thomas Renninger <trenn@suse.de>
CC: Alexey Starikovskiy <astarikovskiy@suse.de>
CC: Len Brown <lenb@kernel.org>
CC: linux-kernel@vger.kernel.org
CC: linux-acpi@vger.kernel.org
CC: platform-driver-x86@vger.kernel.org
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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This patch provides the same information through debugfs, which previously was
provided through /proc/acpi/embedded_controller/*/info
This is the gpe the EC is connected to and whether the global lock
gets used.
The io ports used are added to /proc/ioports in another patch.
Beside the fact that /proc/acpi is deprecated for quite some time,
this info is not needed for applications and thus can be moved
to debugfs instead of a public interface like /sys.
Signed-off-by: Thomas Renninger <trenn@suse.de>
CC: Alexey Starikovskiy <astarikovskiy@suse.de>
CC: Len Brown <lenb@kernel.org>
CC: linux-kernel@vger.kernel.org
CC: linux-acpi@vger.kernel.org
CC: Bjorn Helgaas <bjorn.helgaas@hp.com>
CC: platform-driver-x86@vger.kernel.org
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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The .add function must not be declared __init.
Signed-off-by: Thomas Renninger <trenn@suse.de>
CC: Alexey Starikovskiy <astarikovskiy@suse.de>
CC: Len Brown <lenb@kernel.org>
CC: linux-kernel@vger.kernel.org
CC: linux-acpi@vger.kernel.org
CC: platform-driver-x86@vger.kernel.org
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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There is a general interface for that now (provided by
other patches in this patch series):
/sys/kernel/debug/ec/*/io
Signed-off-by: Thomas Renninger <trenn@suse.de>
CC: Alexey Starikovskiy <astarikovskiy@suse.de>
CC: Len Brown <lenb@kernel.org>
CC: linux-kernel@vger.kernel.org
CC: linux-acpi@vger.kernel.org
CC: platform-driver-x86@vger.kernel.org
CC: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
CC: ibm-acpi-devel@lists.sourceforge.net
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Other patches in this series add the same info to /sys/... and
/proc/ioports.
The info removed should never have been used in an application,
eventually someone read it manually.
/proc/acpi is deprecated for more than a year anyway...
Signed-off-by: Thomas Renninger <trenn@suse.de>
CC: Alexey Starikovskiy <astarikovskiy@suse.de>
CC: Len Brown <lenb@kernel.org>
CC: linux-kernel@vger.kernel.org
CC: linux-acpi@vger.kernel.org
CC: platform-driver-x86@vger.kernel.org
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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In current implementation, acpi_pcc_write_sset return 1
if write is successful, 0 if write is failed.
But all the callers consider acpi_pcc_write_sset return 0
if write is successful and return negtive if write is failed.
This patch changes the implementation of acpi_pcc_write_sset to
return 0 if write is successful, -EIO if write is failed.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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The hotplug_disabled module parameter is determinated at the module load
time. Change the value after the module is loaded does not make sense and
has no effect at all, thus set the permissions to 0444 instead of 0644.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: Corentin Chary <corentincj@iksaif.net>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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The wapf module parameters defines the behavior of the Fn+Fx wlan key.
The wlan_status and bluetooth_status module parameters are for setting the
wlan/bluetooth status on boot.
All above module parameters are determinated only at the module load time.
Change the value after the module is loaded does not make sense and has
no effect at all, thus set the permissions to 0444 instead of 0644.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: Corentin Chary <corentincj@iksaif.net>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Remove non-used acer_quirks struct definition.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: Carlos Corbacho <carlos@strangeworlds.co.uk>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Thomas Renninger <trenn@suse.de>
Cc: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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When acpi_evaluate_object() is passed ACPI_ALLOCATE_BUFFER, the caller
must kfree the returned buffer if AE_OK is returned.
Call Trace:
wmab_execute
-> wmi_evaluate_method
-> acpi_evaluate_object
Thus if callers of wmab_execute() pass ACPI_ALLOCATE_BUFFER, the return
buffer must be kfreed if wmab_execute return AE_OK.
[akpm@linux-foundation.org: avoid multiple return points, remove unneeded cast, remove unneeded initialisation of `status']
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Thomas Renninger <trenn@suse.de>
Cc: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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