| Commit message (Collapse) | Author | Age |
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acpi_video_dmi_demote_vendor() is going away as part of the cleanup of
the code for determinging which backlight class driver(s) to register.
The call to acpi_video_dmi_demote_vendor() was meant to undo the call to
acpi_video_dmi_promote_vendor() when the gmux device is removed, this is
questionable though since the promote call sets a flag, not a counter, so
the demote call may undo a promoto done elsewhere. Moreover in practice
this is a nop since the gmux device is never removed, and the flag is only
checked when acpi/video.ko gets loaded, so even if the user manually
removes apple-gmux the demote call is still a nop as video.ko will already
have loaded by this time.
Also note that none of the other users of acpi_video_dmi_promote_vendor()
use acpi_video_dmi_demote_vendor().
If we ever encounter a system with a gmux where the acpi-video interface
should be used, then the proper fix would be to dmi-blacklist the gmux
driver on that system.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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acpi_video_unregister
acpi_video_unregister() not only unregisters the acpi-video backlight
interface but also unregisters the acpi video bus event listener, causing
e.g. brightness hotkey presses to no longer generate keypress events.
The unregistering of the acpi video bus event listener usually is
undesirable, which by itself is a good reason to switch to
acpi_video_unregister_backlight().
Another problem with using acpi_video_unregister() rather then using
acpi_video_unregister_backlight() is that on systems with an intel video
opregion (most systems) and a broken_acpi_video quirk, whether or not
the acpi video bus event listener actually gets unregistered depends on
module load ordering:
Scenario a:
1) acpi/video.ko gets loaded (*), does not do acpi_video_register as there
is an intel opregion.
2) intel.ko gets loaded, calls acpi_video_register() which registers both
the listener and the acpi backlight interface
3) samsung-laptop.ko gets loaded, calls acpi_video_unregister() causing
both the listener and the acpi backlight interface to unregister
Scenario b:
1) acpi/video.ko gets loaded (*), does not do acpi_video_register as there
is an intel opregion.
2) samsung-laptop.ko gets loaded, calls acpi_video_dmi_promote_vendor(),
calls acpi_video_unregister(), which is a nop since acpi_video_register
has not yet been called
2) intel.ko gets loaded, calls acpi_video_register() which registers
the listener, but does not register the acpi backlight interface due to
the call to the preciding call to acpi_video_dmi_promote_vendor()
*) acpi/video.ko always loads first as both other modules depend on it.
So we end up with or without an acpi video bus event listener depending
on module load ordering, not good.
Switching to using acpi_video_unregister_backlight() means that independ
of ordering we will always have an acpi video bus event listener fixing
this.
Note that this commit means that systems without an intel video opregion,
and systems which were hitting scenario a wrt module load ordering, are
now getting an acpi video bus event listener while before they were not!
On some systems this may cause the brightness hotkeys to start generating
keypresses while before they were not (good), while on other systems this
may cause the brightness hotkeys to generate multiple keypress events for
a single press (not so good). Since on most systems the acpi video bus is
the canonical source for brightness events I believe that the latter case
will needs to be handled on a case by case basis by filtering out the
duplicate keypresses at the other source for them.
Cc: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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acpi_video_unregister() not only unregisters the acpi-video backlight
interface but also unregisters the acpi video bus event listener, causing
e.g. brightness hotkey presses to no longer generate keypress events.
The unregistering of the acpi video bus event listener usually is
undesirable, which by itself is a good reason to switch to
acpi_video_unregister_backlight().
Another problem with using acpi_video_unregister() rather then using
acpi_video_unregister_backlight() is that on systems with an intel video
opregion (most systems) and a wmi_backlight_power quirk, whether or not
the acpi video bus event listener actually gets unregistered depends on
module load ordering:
Scenario a:
1) acpi/video.ko gets loaded (*), does not do acpi_video_register as there
is an intel opregion.
2) intel.ko gets loaded, calls acpi_video_register() which registers both
the listener and the acpi backlight interface
3) asus-wmi.ko gets loaded, calls acpi_video_unregister() causing both
the listener and the acpi backlight interface to unregister
Scenario b:
1) acpi/video.ko gets loaded (*), does not do acpi_video_register as there
is an intel opregion.
2) asus-wmi.ko gets loaded, calls acpi_video_dmi_promote_vendor(),
calls acpi_video_unregister(), which is a nop since acpi_video_register
has not yet been called
2) intel.ko gets loaded, calls acpi_video_register() which registers
the listener, but does not register the acpi backlight interface due to
the call to the preciding call to acpi_video_dmi_promote_vendor()
*) acpi/video.ko always loads first as both other modules depend on it.
So we end up with or without an acpi video bus event listener depending
on module load ordering, not good.
Switching to using acpi_video_unregister_backlight() means that independ
of ordering we will always have an acpi video bus event listener fixing
this.
Note that this commit means that systems without an intel video opregion,
and systems which were hitting scenario a wrt module load ordering, are
now getting an acpi video bus event listener while before they were not!
On some systems this may cause the brightness hotkeys to start generating
keypresses while before they were not (good), while on other systems this
may cause the brightness hotkeys to generate multiple keypress events for
a single press (not so good). Since on most systems the acpi video bus is
the canonical source for brightness events I believe that the latter case
will needs to be handled on a case by case basis by filtering out the
duplicate keypresses at the other source for them.
Cc: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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acpi_video_unregister() not only unregisters the acpi-video backlight
interface but also unregisters the acpi video bus event listener, causing
e.g. brightness hotkey presses to no longer generate keypress events.
The unregistering of the acpi video bus event listener usually is
undesirable, which by itself is a good reason to switch to
acpi_video_unregister_backlight().
Another problem with using acpi_video_unregister() rather then using
acpi_video_unregister_backlight() is that on systems with an intel video
opregion (most systems) whether or not the acpi video bus event listener
actually gets unregistered depends on module load ordering:
Scenario a:
1) acpi/video.ko gets loaded (*), does not do acpi_video_register as there
is an intel opregion.
2) intel.ko gets loaded, calls acpi_video_register() which registers both
the listener and the acpi backlight interface
3) apple-gmux.ko gets loaded, calls acpi_video_unregister() causing both
the listener and the acpi backlight interface to unregister
Scenario b:
1) acpi/video.ko gets loaded (*), does not do acpi_video_register as there
is an intel opregion.
2) apple-gmux.ko gets loaded, calls acpi_video_dmi_promote_vendor(),
calls acpi_video_unregister(), which is a nop since acpi_video_register
has not yet been called
2) intel.ko gets loaded, calls acpi_video_register() which registers
the listener, but does not register the acpi backlight interface due to
the call to the preciding call to acpi_video_dmi_promote_vendor()
*) acpi/video.ko always loads first as both other modules depend on it.
So we end up with or without an acpi video bus event listener depending
on module load ordering, not good.
Switching to using acpi_video_unregister_backlight() means that independ
of ordering we will always have an acpi video bus event listener fixing
this.
Note that this commit means that systems without an intel video opregion,
and systems which were hitting scenario a wrt module load ordering, are
now getting an acpi video bus event listener while before they were not!
On some systems this may cause the brightness hotkeys to start generating
keypresses while before they were not (good), while on other systems this
may cause the brightness hotkeys to generate multiple keypress events for
a single press (not so good). Since on most systems the acpi video bus is
the canonical source for brightness events I believe that the latter case
will needs to be handled on a case by case basis by filtering out the
duplicate keypresses at the other source for them.
Cc: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree updates from Jiri Kosina:
"As usual, mostly comment, kerneldoc and printk() fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial:
lpfc: Grammar s/an negative/a negative/
ARM: lib/lib1funcs.S: fix typo s/substractions/subtractions/
cx25821: cx25821-medusa-reg.h: fix 0x0x prefix
lib: crc-itu-t.[ch] fix 0x0x prefix in integer constants
rapidio: Fix kerneldoc and comment
qla4xxx: Fix printk() in qla4_83xx_read_reset_template() and qla4_83xx_pre_loopback_config()
treewide: Kconfig: fix wording / spelling
usb/serial: fix grammar in Kconfig help text for FTDI_SIO
megaraid_sas: fix kerneldoc
netfilter: ebtables: fix comment grammar
drm/radeon: fix comment
isdn: fix grammar in comment
ARM: KVM: fix comment
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This patch fix spelling typos in Kconfig.
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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The conversion to DEVICE_ATTR_* macros failed to fixup a few cases where
the old attribute names didn't match the show/store function names.
Instead of renaming the functions, the attributes were renamed. This
caused an unintentional API change. The hwmon required 'name' attribute
were among the renamed attribute, causing libsensors to fail to detect
the hwmon device at all.
Fix by using the DEVICE_ATTR macro for these attributes, allowing the
show/store functions to keep their system specific prefixes.
Fixes: b4dd04ac6ef8 ("thinkpad_acpi: use DEVICE_ATTR_* macros")
Cc: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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Fix the following warning:
warning: "static" is not at beginning of declaration
void static hotkey_mask_warn_incomplete_mask(void)
^
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Henrique de Moraes Holschuh <ibm-acpi@hmh.eng.br>
Cc: Darren Hart <dvhart@infradead.org>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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Lenovo G40-30 does not provide any physical radio switch to user.
Therefore disable the rfkill switch identically to the Yoga 2 approach.
(Note for later, models ids are sorted alphabetically).
Benefit is to make wireless available again without unloading module.
It was tested successfully on 4.1.0-rc1 base with this model:
(LENOVO_MT_80FY_BU_idea_FM_Lenovo G40-30).
BugLink: https://bugs.launchpad.net/ideapad-laptop/+bug/1450946
Cc: platform-driver-x86@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Philippe Coval <rzr@gna.org>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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git://git.infradead.org/users/dvhart/linux-platform-drivers-x86
Pull x86 platform driver updates from Darren Hart:
"This series includes significant updates to the toshiba_acpi driver
and the reintroduction of the dell-laptop keyboard backlight additions
I had to revert previously. Also included are various fixes for
typos, warnings, correctness, and minor bugs.
Specifics:
dell-laptop:
- add support for keyboard backlight.
toshiba_acpi:
- adaptive keyboard, hotkey, USB sleep and charge, and backlight
updates. Update sysfs documentation.
toshiba_bluetooth:
- fix enabling/disabling loop on recent devices
apple-gmux:
- lock iGP IO to protect from vgaarb changes
other:
- Fix typos, clear gcc warnings, clarify pr_* messages, correct
return types, update MAINTAINERS"
* tag 'platform-drivers-x86-v4.1-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86: (25 commits)
toshiba_acpi: Do not register vendor backlight when acpi_video bl is available
MAINTAINERS: Add me on list of Dell laptop drivers
platform: x86: dell-laptop: Add support for keyboard backlight
Documentation/ABI: Update sysfs-driver-toshiba_acpi entry
toshiba_acpi: Fix pr_* messages from USB Sleep Functions
toshiba_acpi: Update and fix USB Sleep and Charge modes
wmi: Use bool function return values of true/false not 1/0
toshiba_bluetooth: Fix enabling/disabling loop on recent devices
toshiba_bluetooth: Clean up *_add function and disable BT device at removal
toshiba_bluetooth: Add three new functions to the driver
toshiba_acpi: Fix the enabling of the Special Functions
toshiba_acpi: Use the Hotkey Event Type function for keymap choosing
toshiba_acpi: Add Hotkey Event Type function and definitions
x86/wmi: delete unused wmi_data_lock mutex causing gcc warning
apple-gmux: lock iGP IO to protect from vgaarb changes
MAINTAINERS: Add missing Toshiba devices and add myself as maintainer
toshiba_acpi: Update events in toshiba_acpi_notify
intel-oaktrail: Fix trivial typo in comment
thinkpad_acpi: off by one in adaptive_keyboard_hotkey_notify_hotkey()
thinkpad_acpi: signedness bugs getting current_mode
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commit a39f46df33c6 ("toshiba_acpi: Fix regression caused by backlight extra
check code") causes the backlight to no longer work on the Toshiba Z30,
reverting that commit fixes this but restores the original issue fixed
by that commit.
Looking at the toshiba_acpi backlight code for a fix for this I noticed that
the toshiba code is the only code under platform/x86 which unconditionally
registers a vendor acpi backlight interface, without checking for acpi_video
backlight support first.
This commit adds the necessary checks bringing toshiba_acpi in line with the
other drivers, and fixing the Z30 regression without needing to revert the
commit causing it.
Chances are that there will be some Toshiba models which have a non working
acpi-video implementation while the toshiba vendor backlight interface does
work, this commit adds an empty dmi_id table where such systems can be added,
this is identical to how other drivers handle such systems.
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1206036
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=86521
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-and-tested-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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This patch adds the support for the configuration of the keyboard
backlight on supported Dell laptops.
With this patch it is possible to set:
* keyboard backlight level
* timeout after which the backlight will be automatically turned off
* input activity triggers (keyboard, touchpad, mouse) that enable the backlight
* ambient light settings
The settings are exposed via /sys/class/leds/dell::kbd_backlight/
The code is based on the newly released documentation by Dell in the
libsmbios project.
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Gabriele Mazzotta <gabriele.mzt@gmail.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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This patch fixes the messages displayed by the USB Sleep Functions,
they were printing wrong messages not associated to the feature
currently queried.
Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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This patch fixes the USB Sleep and Charge mode on certain models
where the value returned by the BIOS is different, and thus, making
this feature not to work for those models.
Also, the "Typical" charging mode was added as a supported mode.
Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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Use the normal return values for bool functions
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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Bug 93911 reported a broken handling of the BT device, causing the
driver to get stuck in a loop enabling/disabling the device whenever
the device is deactivated by the kill switch as follows:
1. The user activated the kill switch, causing the system to generate
a 0x90 (status change) event and disabling the BT device.
2. The driver catches the event and re-enables the BT device.
3. The system detects the device being activated, but since the kill
switch is activated, disables the BT device (again) and generates
a 0x90 event (again).
4. Repeat from 2.
This patch adds an extra check to verify the status of the BT device,
returning silently if it is already activated.
Also, checks and returns appropriate error values while evaluating
the AUSB and BTPO methods.
Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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This patch cleans the toshiba_bluetooth_add function by using the
recently introduced function toshiba_bluetooth_present, simplifying
its code and returning appropriate error values.
Also, disables the BT device at the removal of the driver, by using
the function toshiba_bluetooth_disable.
Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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This patch introduces three new functions, which are going to be used
by the next patches.
The functions introduced are toshiba_bluetooth_present,
toshiba_bluetooth_status and toshiba_bluetooth_disable, which queries
the presence of the device, queries the status and disables the
device respectively.
Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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Some Toshiba laptops with the "Special Functions" feature enabled
fail to properly enable such feature unless a specific value is
used to enable the hotkey events.
This patch adds a new function called "*_enable_special_functions",
that simply makes a call to the HCI_HOTKEY_EVENT call, but this time
we are using a different parameter to make the "Special Functions"
mode work as expected.
Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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With the previous patch adding support to "Hotkey Event Type", we can
now use the type to distinguish which keymap to use.
This patch changes the toshiba_acpi_setup_keyboard function to make
use of the hotkey event type to choose the correct keymap without the
need to use the DMI matching list.
Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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This patch adds support to query the "Hotkey Event Type" the system
supports.
There are two main event types (so far), 0x10 and 0x11, with the
first being all those laptops that have the old keyboard layout, and
the latter all those new laptops with the new keyboard layout.
Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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In commit bff431e49ff531a343fbb2b4426e313000844f32 ("ACPI: WMI: Add
ACPI-WMI mapping driver") this mutex was added, but the rest of the
final commit never actually made use of it, resulting in:
In file included from include/linux/mutex.h:29:0,
from include/linux/kernfs.h:13,
from include/linux/sysfs.h:15,
from include/linux/kobject.h:21,
from include/linux/device.h:17,
from drivers/platform/x86/wmi.c:35:
drivers/platform/x86/wmi.c:48:21: warning: ‘wmi_data_lock’ defined but not used [-Wunused-variable]
static DEFINE_MUTEX(wmi_data_lock);
^
A git grep shows no other instances/references to the wmi_data_lock.
Delete it, assuming that the mutex addition was just a leftover from
an earlier work in progress version of the change, since the original
dates from 2008.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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As GMUX depends on IO for iGP to be enabled and active, lock the IO at
vgaarb level. This should prevent GPU driver for dGPU to disable IO for
iGP while it tries to own legacy VGA IO.
This fixes usage of backlight control combined with closed nvidia
driver on some Apple dual-GPU (intel/nvidia) systems.
On those systems loading nvidia driver disables intel IO decoding,
disabling the gmux backlight controls as a side effect.
Prior to commits moving boot_vga from (optional) efifb to less optional
vgaarb this mis-behavior could be avoided by using right kernel config
(efifb enabled but vgaarb disabled).
This patch explicitly does not try to trigger vgaarb changes in order
to avoid confusing already running graphics drivers. If IO has been
mis-configured by vgaarb gmux will thus fail to probe.
It is expected to load/probe gmux prior to graphics drivers.
Fixes: ce027dac592c0ada241ce0f95ae65856828ac450 # nvidia interaction
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=86121
Reported-by: Petri Hodju <petrihodju@yahoo.com>
Tested-by: Petri Hodju <petrihodju@yahoo.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Matthew Garrett <matthew.garrett@nebula.com>
Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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This patch adds a few more events sent to TOSXXXX devices, some of
them are already identified, while some others simply print a message
informing the type of event received.
Also, a netlink event is generated so that userspace apps, daemons,
etc. act accordingly to these events.
Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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Change 'disalbe' to 'disable'
Signed-off-by: Yannick Guerrini <yguerrini@tomshardware.fr>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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This should be >= instead of > because otherwise we read one element
past the end of the hotkey_keycode_map[] array.
The hotkey_keycode_map[] array has TPACPI_HOTKEY_MAP_LEN elements.
Fixes: 6a68d8557084 ('thinkpad_acpi: Add support for more adaptive kbd buttons')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-By: Bastien Nocera <hadess@hadess.net>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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This needs to be signed for the error handling to work. Valid modes are
small positive integers.
Fixes: b790ceeb0fd9 ('thinkpad_acpi: Add adaptive_kbd_mode sysfs attr')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-By: Bastien Nocera <hadess@hadess.net>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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Use the DEVICE_ATTR_* macros to reduce boiler plate.
Signed-off-by: Bastien Nocera <hadess@hadess.net>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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This commit adds new elements to the ThinkPad keymaps, and
will send key events for keys for which an input.h declaration
exists.
Signed-off-by: Bastien Nocera <hadess@hadess.net>
Reviewed-by: Henrique de Moraes Holschuh <hmh@hyymh.eng.br>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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Add a sysfs attribute to allow privileged users to change the keyboard
mode. This could be used by desktop environments to change the keyboard
mode depending on the application focused, as the Windows application
does.
Signed-off-by: Bastien Nocera <hadess@hadess.net>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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Move the getting/setting of the adaptive keyboard mode to separate
functions, so that we can reuse them later through sysfs attributes.
Signed-off-by: Bastien Nocera <hadess@hadess.net>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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Rather than checking on each suspend and resume whether the laptop
has an adaptive keyboard, check when the driver is initialised.
Signed-off-by: Bastien Nocera <hadess@hadess.net>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/olof/chrome-platform
Pull chrome platform updates from Olof Johansson:
"Here's a set of updates to the Chrome OS platform drivers for this
merge window.
Main new things this cycle is:
- Driver changes to expose the lightbar to users. With this, you can
make your own blinkenlights on Chromebook Pixels.
- Changes in the way that the atmel_mxt trackpads are probed. The
laptop driver is trying to be smart and not instantiate the devices
that don't answer to probe. For the trackpad that can come up in
two modes (bootloader or regular), this gets complicated since the
driver already knows how to handle the two modes including the
actual addresses used. So now the laptop driver needs to know more
too, instantiating the regular address even if the bootloader one
is the probe that passed.
- mfd driver improvements by Javier Martines Canillas, and a few
bugfixes from him, kbuild and myself"
* tag 'chrome-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/olof/chrome-platform:
platform/chrome: chromeos_laptop - instantiate Atmel at primary address
platform/chrome: cros_ec_lpc - Depend on X86 || COMPILE_TEST
platform/chrome: cros_ec_lpc - Include linux/io.h header file
platform/chrome: fix platform_no_drv_owner.cocci warnings
platform/chrome: cros_ec_lightbar - fix duplicate const warning
platform/chrome: cros_ec_dev - fix Unknown escape '%' warning
platform/chrome: Expose Chrome OS Lightbar to users
platform/chrome: Create sysfs attributes for the ChromeOS EC
mfd: cros_ec: Instantiate ChromeOS EC character device
platform/chrome: Add Chrome OS EC userspace device interface
platform/chrome: Add cros_ec_lpc driver for x86 devices
mfd: cros_ec: Add char dev and virtual dev pointers
mfd: cros_ec: Use fixed size arrays to transfer data with the EC
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The new Atmel MXT driver expects i2c client's address contain the
primary (main address) of the chip, and calculates the expected
bootloader address form the primary address. Unfortunately chrome_laptop
does probe the devices and if touchpad (or touchscreen, or both) comes
up in bootloader mode the i2c device gets instantiated with the
bootloader address which confuses the driver.
To work around this issue let's probe the primary address first. If the
device is not detected at the primary address we'll probe alternative
addresses as "dummy" devices. If any of them are found, destroy the
dummy client and instantiate client with proper name at primary address
still.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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The ChromeOS EC is connected by LPC only on x86 platforms and no others,
so add a dependency describing that.
But also build the driver if the COMPILE_TEST option is enabled
to have build coverage in other architectures.
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
[olof: reworded commit message]
Signed-off-by: Olof Johansson <olof@lixom.net>
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The driver uses the inb() and outb() I/O functions so should
include the header file that has these functions definitions.
This patch fixes the following error when the header is not
explicitly included:
drivers/platform/chrome//cros_ec_lpc.c: In function ‘ec_response_timed_out’:
drivers/platform/chrome//cros_ec_lpc.c:40:3: error: implicit declaration of function ‘inb’ [-Werror=implicit-function-declaration]
drivers/platform/chrome//cros_ec_lpc.c: In function ‘cros_ec_cmd_xfer_lpc’:
drivers/platform/chrome//cros_ec_lpc.c:75:3: error: implicit declaration of function ‘outb’ [-Werror=implicit-function-declaration]
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Olof Johansson <olof@lixom.net>
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drivers/platform/chrome/cros_ec_lpc.c:272:3-8: No need to set .owner here. The core will do it.
Remove .owner field if calls are used which set it automatically
Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci
CC: Bill Richardson <wfrichar@chromium.org>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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Fix the following sparse warning:
drivers/platform/chrome/cros_ec_lightbar.c:254:25: sparse: duplicate const
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Olof Johansson <olofj@chromium.org>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Olof Johansson <olof@lixom.net>
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Fix the following sparse warning:
drivers/platform/chrome/cros_ec_dev.c:64:45: sparse: Unknown escape '%'
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Olof Johansson <olofj@chromium.org>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Olof Johansson <olof@lixom.net>
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This adds some sysfs entries to provide userspace control of the
four-element LED "lightbar" on the Chromebook Pixel. This only instantiates
the lightbar controls if the device actually exists.
To prevent DoS attacks, this interface is limited to 20 accesses/second,
although that rate can be adjusted by a privileged user.
On Chromebooks without a lightbar, this should have no effect. On the
Chromebook Pixel, you should be able to do things like this:
$ cd /sys/devices/virtual/chromeos/cros_ec/lightbar
$ echo 0x80 > brightness
$ echo 255 > brightness
$
$ cat sequence
S0
$ echo konami > sequence
$ cat sequence
KONAMI
$
$ cat sequence
S0
And
$ cd /sys/devices/virtual/chromeos/cros_ec/lightbar
$ echo stop > sequence
$ echo "4 255 255 255" > led_rgb
$ echo "0 255 0 0 1 0 255 0 2 0 0 255 3 255 255 0" > led_rgb
$ echo run > sequence
Test the DoS prevention with this:
$ cd /sys/devices/virtual/chromeos/cros_ec/lightbar
$ echo 500 > interval_msec
$ time (cat version version version version version version version)
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-by: Olof Johansson <olofj@chromium.org>
Tested-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Tested-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
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This adds the first few sysfs attributes for the Chrome OS EC. These
controls are made available under /sys/devices/virtual/chromeos/cros_ec
flashinfo - display current flash info
reboot - tell the EC to reboot in various ways
version - information about the EC software and hardware
Future changes will build on this to add additional controls.
From a root shell, you should be able to do things like this:
cd /sys/devices/virtual/chromeos/cros_ec
cat flashinfo
cat version
echo rw > reboot
cat version
echo ro > reboot
cat version
echo rw > reboot
cat version
echo cold > reboot
That last command will reboot the AP too.
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-by: Olof Johansson <olofj@chromium.org>
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Tested-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
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This patch adds a device interface to access the
Chrome OS Embedded Controller from user-space.
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-by: Simon Glass <sjg@google.com>
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Tested-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
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Chromebooks have an Embedded Controller (EC) that is used to
implement various functions such as keyboard, power and battery.
The AP can communicate with the EC through different bus types
such as I2C, SPI or LPC.
The cros_ec mfd driver is then composed of a core driver that
register the sub-devices as mfd cells and provide a high level
communication interface that is used by the rest of the kernel
and bus specific interfaces modules.
Each connection method then has its own driver, which register
with the EC driver interface-agnostic interface.
Currently, there are drivers to communicate with the EC over
I2C and SPI and this driver adds support for LPC.
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Tested-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
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Pull MIPS updates from Ralf Baechle:
"This is the main pull request for MIPS for Linux 4.1. Most
noteworthy:
- Add more Octeon-optimized crypto functions
- Octeon crypto preemption and locking fixes
- Little endian support for Octeon
- Use correct CSR to soft reset Octeons
- Support LEDs on the Octeon-based DSR-1000N
- Fix PCI interrupt mapping for the Octeon-based DSR-1000N
- Mark prom_free_prom_memory() as __init for a number of systems
- Support for Imagination's Pistachio SOC. This includes arch and
CLK bits. I'd like to merge pinctrl bits later
- Improve parallelism of csum_partial for certain pipelines
- Organize DTB files in subdirs like other architectures
- Implement read_sched_clock for all MIPS platforms other than
Octeon
- Massive series of 38 fixes and cleanups for the FPU emulator /
kernel
- Further FPU remulator work to support new features. This sits on a
separate branch which also has been pulled into the 4.1 KVM branch
- Clean up and fixes for the SEAD3 eval board; remove unused file
- Various updates for Netlogic platforms
- A number of small updates for Loongson 3 platforms
- Increase the memory limit for ATH79 platforms to 256MB
- A fair number of fixes and updates for BCM47xx platforms
- Finish the implementation of XPA support
- MIPS FDC support. No, not floppy controller but Fast Debug Channel :)
- Detect the R16000 used in SGI legacy platforms
- Fix Kconfig dependencies for the SSB bus support"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (265 commits)
MIPS: Makefile: Fix MIPS ASE detection code
MIPS: asm: elf: Set O32 default FPU flags
MIPS: BCM47XX: Fix detecting Microsoft MN-700 & Asus WL500G
MIPS: Kconfig: Disable SMP/CPS for 64-bit
MIPS: Hibernate: flush TLB entries earlier
MIPS: smp-cps: cpu_set FPU mask if FPU present
MIPS: lose_fpu(): Disable FPU when MSA enabled
MIPS: ralink: add missing symbol for RALINK_ILL_ACC
MIPS: ralink: Fix bad config symbol in PCI makefile.
SSB: fix Kconfig dependencies
MIPS: Malta: Detect and fix bad memsize values
Revert "MIPS: Avoid pipeline stalls on some MIPS32R2 cores."
MIPS: Octeon: Delete override of cpu_has_mips_r2_exec_hazard.
MIPS: Fix cpu_has_mips_r2_exec_hazard.
MIPS: kernel: entry.S: Set correct ISA level for mips_ihb
MIPS: asm: spinlock: Fix addiu instruction for R10000_LLSC_WAR case
MIPS: r4kcache: Use correct base register for MIPS R6 cache flushes
MIPS: Kconfig: Fix typo for the r2-to-r6 emulator kernel parameter
MIPS: unaligned: Fix regular load/store instruction emulation for EVA
MIPS: unaligned: Surround load/store macros in do {} while statements
...
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This add south-bridge (SB700/SB710/SB800 chipset) ACPI platform driver
for Loongson-3. This will be used by EC (Embedded Controller, used by
laptops) driver and STR (Suspend To RAM).
[ralf@linux-mips.org: Fix build error if !CONFIG_CPU_LOONGSON3. Build
doesn't like it if no obj-* variable is defined at all in a Makefile.
Obviously this has not been tested on other platforms.]
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Fuxin Zhang <zhangfx@lemote.com>
Cc: Zhangjin Wu <wuzhangjin@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/9619/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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This add CPU Hwmon (temperature sensor) platform driver for Loongson-3.
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Fuxin Zhang <zhangfx@lemote.com>
Cc: Zhangjin Wu <wuzhangjin@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/9617/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management and ACPI updates from Rafael Wysocki:
"These are mostly fixes and cleanups all over, although there are a few
items that sort of fall into the new feature category.
First off, we have new callbacks for PM domains that should help us to
handle some issues related to device initialization in a better way.
There also is some consolidation in the unified device properties API
area allowing us to use that inferface for accessing data coming from
platform initialization code in addition to firmware-provided data.
We have some new device/CPU IDs in a few drivers, support for new
chips and a new cpufreq driver too.
Specifics:
- Generic PM domains support update including new PM domain callbacks
to handle device initialization better (Russell King, Rafael J
Wysocki, Kevin Hilman)
- Unified device properties API update including a new mechanism for
accessing data provided by platform initialization code (Rafael J
Wysocki, Adrian Hunter)
- ARM cpuidle update including ARM32/ARM64 handling consolidation
(Daniel Lezcano)
- intel_idle update including support for the Silvermont Core in the
Baytrail SOC and for the Airmont Core in the Cherrytrail and
Braswell SOCs (Len Brown, Mathias Krause)
- New cpufreq driver for Hisilicon ACPU (Leo Yan)
- intel_pstate update including support for the Knights Landing chip
(Dasaratharaman Chandramouli, Kristen Carlson Accardi)
- QorIQ cpufreq driver update (Tang Yuantian, Arnd Bergmann)
- powernv cpufreq driver update (Shilpasri G Bhat)
- devfreq update including Tegra support changes (Tomeu Vizoso,
MyungJoo Ham, Chanwoo Choi)
- powercap RAPL (Running-Average Power Limit) driver update including
support for Intel Broadwell server chips (Jacob Pan, Mathias Krause)
- ACPI device enumeration update related to the handling of the
special PRP0001 device ID allowing DT-style 'compatible' property
to be used for ACPI device identification (Rafael J Wysocki)
- ACPI EC driver update including limited _DEP support (Lan Tianyu,
Lv Zheng)
- ACPI backlight driver update including a new mechanism to allow
native backlight handling to be forced on non-Windows 8 systems and
a new quirk for Lenovo Ideapad Z570 (Aaron Lu, Hans de Goede)
- New Windows Vista compatibility quirk for Sony VGN-SR19XN (Chen Yu)
- Assorted ACPI fixes and cleanups (Aaron Lu, Martin Kepplinger,
Masanari Iida, Mika Westerberg, Nan Li, Rafael J Wysocki)
- Fixes related to suspend-to-idle for the iTCO watchdog driver and
the ACPI core system suspend/resume code (Rafael J Wysocki, Chen Yu)
- PM tracing support for the suspend phase of system suspend/resume
transitions (Zhonghui Fu)
- Configurable delay for the system suspend/resume testing facility
(Brian Norris)
- PNP subsystem cleanups (Peter Huewe, Rafael J Wysocki)"
* tag 'pm+acpi-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (74 commits)
ACPI / scan: Fix NULL pointer dereference in acpi_companion_match()
ACPI / scan: Rework modalias creation when "compatible" is present
intel_idle: mark cpu id array as __initconst
powercap / RAPL: mark rapl_ids array as __initconst
powercap / RAPL: add ID for Broadwell server
intel_pstate: Knights Landing support
intel_pstate: remove MSR test
cpufreq: fix qoriq uniprocessor build
ACPI / scan: Take the PRP0001 position in the list of IDs into account
ACPI / scan: Simplify acpi_match_device()
ACPI / scan: Generalize of_compatible matching
device property: Introduce firmware node type for platform data
device property: Make it possible to use secondary firmware nodes
PM / watchdog: iTCO: stop watchdog during system suspend
cpufreq: hisilicon: add acpu driver
ACPI / EC: Call acpi_walk_dep_device_list() after installing EC opregion handler
cpufreq: powernv: Report cpu frequency throttling
intel_idle: Add support for the Airmont Core in the Cherrytrail and Braswell SOCs
intel_idle: Update support for Silvermont Core in Baytrail SOC
PM / devfreq: tegra: Register governor on module init
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Removing some boilerplate by using module_pnp_driver instead of calling
register and unregister in the otherwise empty init/exit functions
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input subsystem updates from Dmitry Torokhov:
"You will get the following new drivers:
- Qualcomm PM8941 power key drver
- ChipOne icn8318 touchscreen controller driver
- Broadcom iProc touchscreen and keypad drivers
- Semtech SX8654 I2C touchscreen controller driver
ALPS driver now supports newer SS4 devices; Elantech got a fix that
should make it work on some ASUS laptops; and a slew of other
enhancements and random fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (51 commits)
Input: alps - non interleaved V2 dualpoint has separate stick button bits
Input: alps - fix touchpad buttons getting stuck when used with trackpoint
Input: atkbd - document "no new force-release quirks" policy
Input: ALPS - make alps_get_pkt_id_ss4_v2() and others static
Input: ALPS - V7 devices can report 5-finger taps
Input: ALPS - add support for SS4 touchpad devices
Input: ALPS - refactor alps_set_abs_params_mt()
Input: elantech - fix absolute mode setting on some ASUS laptops
Input: atmel_mxt_ts - split out touchpad initialisation logic
Input: atmel_mxt_ts - implement support for T100 touch object
Input: cros_ec_keyb - fix clearing keyboard state on wakeup
Input: gscps2 - drop pci_ids dependency
Input: synaptics - allocate 3 slots to keep stability in image sensors
Input: Revert "Revert "synaptics - use dmax in input_mt_assign_slots""
Input: MT - make slot assignment work for overcovered solutions
mfd: tc3589x: enforce device-tree only mode
Input: tc3589x - localize platform data
Input: tsc2007 - Convert msecs to jiffies only once
Input: edt-ft5x06 - remove EV_SYN event report
Input: edt-ft5x06 - allow to setting the maximum axes value through the DT
...
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Merge with the latest upstream to synchronize Synaptics changes
and bring in new infrastructure pieces.
Conflicts:
drivers/input/mouse/synaptics.c
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