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Add force re-calibrate function support for gen5 trackpad device, it can be
used through sysfs calibrate interface.
Signed-off-by: Dudley Du <dudl@cypress.com>
Tested-by: Jeremiah Mahler <jmmahler@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Add read baseline function support for gen5 trackpad device, it can be used
through sysfs baseline interface.
Signed-off-by: Dudley Du <dudl@cypress.com>
Tested-by: Jeremiah Mahler <jmmahler@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Add firmware image update support for gen5 trackpad device, it can be used
through sysfs update_fw interface.
Signed-off-by: Dudley Du <dudl@cypress.com>
Tested-by: Jeremiah Mahler <jmmahler@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Add force re-calibrate function support for gen3 trackpad device, it can be
used through sysfs calibrate interface.
Signed-off-by: Dudley Du <dudl@cypress.com>
Tested-by: Jeremiah Mahler <jmmahler@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Add read baseline function supported for gen3 trackpad device, it can be
used through sysfs baseline interface.
Signed-off-by: Dudley Du <dudl@cypress.com>
Tested-by: Jeremiah Mahler <jmmahler@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Add support for firmware image update for gen3 trackpad devices; the
firmware update is initiated by writing to update_fw sysfs attribute.
Signed-off-by: Dudley Du <dudl@cypress.com>
Tested-by: Jeremiah Mahler <jmmahler@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Introduce control interfaces that are commonly used in pre- and after
production, for trackpad device state checking, managing and firmware image
updating. These interfaces include mode, firmware_version and product_id
interfaces for reading firmware version and trackpad device product id
values, and update_fw interface to command firmware image update process.
There are also baseline and calibrate interfaces for reading and checking
trackpad device's sensors states.
Signed-off-by: Dudley Du <dudl@cypress.com>
Tested-by: Jeremiah Mahler <jmmahler@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This change implements runtime PM support in the driver and adds
runtime_suspend_scanrate_ms power management interface in device's power
group, so users or applications can control the runtime power management
strategy of trackpad device according to their requirements.
Signed-off-by: Dudley Du <dudl@cypress.com>
Tested-by: Jeremiah Mahler <jmmahler@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Add suspend_scanrate_ms power management interfaces in device's
power group, so users or applications can control the power management
strategy of trackpad device according to their requirements.
Signed-off-by: Dudley Du <dudl@cypress.com>
Tested-by: Jeremiah Mahler <jmmahler@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This change adds support for Gen5 Cypress trackpads. The driver detects
generation of the device at probe time and automatically selects
appropriate protocol.
Signed-off-by: Dudley Du <dudl@cypress.com>
Tested-by: Jeremiah Mahler <jmmahler@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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In order to support multiple different chipsets and communication protocols
trackpad devices in one cyapa driver, the new cyapa driver is re-designed
with one cyapa driver core and multiple device specific functions component.
The cyapa driver core is contained in this patch, it supplies basic functions
that working with kernel and input subsystem, and also supplies the interfaces
that the specific devices' component can connect and work together with as
one driver.
Signed-off-by: Dudley Du <dudl@cypress.com>
Tested-by: Jeremiah Mahler <jmmahler@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Signed-off-by: Michael Karcher <kernel@mkarcher.dialup.fu-berlin.de>
Acked-by: Thorsten Glaser <tg@mirbsd.org>
Tested-by: Stefan Niestegge <beetle@atari.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The touchscreen controller has a temperature sensor embedded in the SoC,
which already has hwmon support in the driver.
Add DT thermal zone support so we can use it with cpufreq for thermal
throttling.
This also adds a comment stating that we do not know the actual formula
for calculating the temperature.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Merge with mainline to bring in the latest thermal and other changes.
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When client changes the type of clock used for the time stamps in input
events flush pending events from the client's queue (since client would not
know which events have old time stamps and which ones have new ones) and
and queue SYN_DROPPED event.
Signed-off-by: Anshul Garg <anshul.g@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Make sure that driver does not process bogus packets as trackstick data
when there is no trackstick present and emit warnings in dmesg so potential
issues with trackstick handling will be visible for debugging.
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This change fixes name, product and version of dev2 input device based on
format used in function psmouse_switch_protocol() in file psmouse-base.c.
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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All the use cases in this driver has a regulator_haptic_toggle() call after
regulator_haptic_set_voltage(). So make regulator_haptic_set_voltage() call
regulator_haptic_toggle() to simplify the code.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Signed-off-by: Moritz Fischer <moritz.fischer@ettus.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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When KBC is in active multiplexing mode the touchpad on this laptop does
not work.
Reported-by: Bilal Koc <koc.bilo@googlemail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Instead of registering device attributes individually let's use attribute
groups and also devm_* infrastructure to ease cleanup.
Tested-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This change adds support for the Power Enable Key found on MFD AXP202
and AXP209. Besides the basic support for the button, the driver adds
two entries in sysfs to configure the time delay for power on/off.
Signed-off-by: Carlo Caione <carlo@caione.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
[wens@csie.org: made axp20x_pek_remove() static; removed driver owner
field; fixed path for sysfs entries]
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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If given input handler is not a filter there is no point is iterating list
of events in a packet to see if some of them need to be filtered out.
Signed-off-by: Anshul Garg <anshul.g@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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If a device does not support autorepeat or does not emit any key events we
should not be scanning all events in a packet to decide if we should start
or stop autorepeat function.
Signed-off-by: Anshul Garg <anshul.g@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This change allows the driver to recognize newer Elantech touchpads.
Cc: stable@vger.kernel.org
Signed-off-by: Yi ju Hong <sam.hung@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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On some laptops, keyboard needs to be reset in order to successfully detect
touchpad (e.g., some Gigabyte laptop models with Elantech touchpads).
Without resettin keyboard touchpad pretends to be completely dead.
Based on the original patch by Mateusz Jończyk this version has been
expanded to include DMI based detection & application of the fix
automatically on the affected models of laptops. This has been confirmed to
fix problem by three users already on three different models of laptops.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=81331
Cc: stable@vger.kernel.org
Signed-off-by: Srihari Vijayaraghavan <linux.bug.reporting@gmail.com>
Acked-by: Mateusz Jończyk <mat.jonczyk@o2.pl>
Tested-by: Srihari Vijayaraghavan <linux.bug.reporting@gmail.com>
Tested by: Zakariya Dehlawi <zdehlawi@gmail.com>
Tested-by: Guillaum Bouchard <guillaum.bouchard@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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According to Documentation/CodingStyle - Chapter 14:
"The preferred form for passing a size of a struct is the following:
p = kmalloc(sizeof(*p), ...);
The alternative form where struct name is spelled out hurts readability and
introduces an opportunity for a bug when the pointer variable type is changed
but the corresponding sizeof that is passed to a memory allocator is not."
So do it as recommended.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This reverts commit 9d469d033d135d80742a4e39e6bbb4519dd5eee1.
It breaks the Chromebook Pixel touchpad (and touchscreen).
Reported-by: Dirk Hohndel <dirk@hohndel.org>
Bisected-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Nick Dyer <nick.dyer@itdev.co.uk>
Cc: Benson Leung <bleung@chromium.org>
Cc: Yufeng Shen <miletus@chromium.org>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: stable@vger.kernel.org # v3.16+
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input layer fixes from Dmitry Torokhov:
"Fixes for v7 protocol for ALPS devices and few other driver fixes.
Also users can request input events to be stamped with boot time
timestamps, in addition to real and monotonic timestamps"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: hil_kbd - fix incorrect use of init_completion
Input: alps - v7: document the v7 touchpad packet protocol
Input: alps - v7: fix finger counting for > 2 fingers on clickpads
Input: alps - v7: sometimes a single touch is reported in mt[1]
Input: alps - v7: ignore new packets
Input: evdev - add CLOCK_BOOTTIME support
Input: psmouse - expose drift duration for IBM trackpoints
Input: stmpe - bias keypad columns properly
Input: stmpe - enforce device tree only mode
mfd: stmpe: add pull up/down register offsets for STMPE
Input: optimize events_per_packet count calculation
Input: edt-ft5x06 - fixed a macro coding style issue
Input: gpio_keys - replace timer and workqueue with delayed workqueue
Input: gpio_keys - allow separating gpio and irq in device tree
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synaptics_profile_sensor_process() and synaptics_report_mt_data() now
share the exact same code. Remove one implementation and rely on the
other where it was used.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The current code tries to consider all states and transitions to properly
detect which finger is attached to which slot. The code is quite huge
and difficult to read.
If the sensor manages to group the touch points but is not reliable in
giving tracking ids, we can simply use the kernel tracking method. Note
that it is already used by Cr-48 Chromebooks.
Incidentaly, this fixes a bug reported by Peter Hutterer:
"""
on the Lenovo T440, run:
evemu-record /dev/input/event4 | grep BTN_
then put one, two, three, two fingers down
when you go from 3 to 2 fingers the driver sends a spurious BTN_TOUCH 0
event:
E: 0.000000 0001 014a 0001 # EV_KEY / BTN_TOUCH 1
E: 0.000000 0001 0145 0001 # EV_KEY / BTN_TOOL_FINGER 1
E: 0.770008 0001 0145 0000 # EV_KEY / BTN_TOOL_FINGER 0
E: 0.770008 0001 014d 0001 # EV_KEY / BTN_TOOL_DOUBLETAP 1
E: 1.924716 0001 014d 0000 # EV_KEY / BTN_TOOL_DOUBLETAP 0
E: 1.924716 0001 014e 0001 # EV_KEY / BTN_TOOL_TRIPLETAP 1
.. changing from 3 to 2 fingers now
E: 3.152641 0001 014a 0000 # EV_KEY / BTN_TOUCH 0
E: 3.152641 0001 014d 0001 # EV_KEY / BTN_TOOL_DOUBLETAP 1
E: 3.152641 0001 014e 0000 # EV_KEY / BTN_TOOL_TRIPLETAP 0
E: 3.176948 0001 014a 0001 # EV_KEY / BTN_TOUCH 1
quick look in the kernel shows it's caused by hw.z going to 0 for a packet,
so probably a firmware bug. either way, it makes it hard to track BTN_TOUCH
as signal that at least one finger is down.
"""
The in-kernel tracking is enough to remove this spurious BTN_TOUCH 0.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Based on versioncheck.
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Most of the protocol for these touchpads has been reverse engineered. This
commit adds a basic multitouch-capable driver.
A lot of the protocol is still unknown. Especially, we don't know how to
identify the device yet apart from the PNP ID.
The previous workaround for these devices has been left in place in case
the driver is not compiled into the kernel or in case some other device
with the same PNP ID is not recognized by the driver yet still has the same
problems with the device probing code.
Signed-off-by: Mathias Gottschlag <mgottschlag@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The successive init_completion calls should be reinit_completion calls.
Signed-off-by: Nicholas Mc Guire <der.herr@hofr.at>
Acked-by: Helge Deller <deller@gmx.de>
Tested-by: Helge Deller <deller@gmx.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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With this driver, we can report KEY_POWER on AM437x SK. This patch has been
tested with said board.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Allwinnner sunxi SoCs have a low resolution adc (called lradc) which is
specifically designed to have various (tablet) keys (ie home, back, search,
etc). attached to it using a resistor network. This adds a driver for this.
There are 2 channels, currently this driver only supports chan0 since there
are no boards known to use chan1.
This has been tested on an olimex a10s-olinuxino-micro, a13-olinuxino, and
a20-olinuxino-micro.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This change adds support for haptic driver controlled by voltage of a
regulator. Userspace can control the device via Force Feedback interface
from input framework.
Signed-off-by: Jaewon Kim <jaewon02.kim@samsung.com>
Signed-off-by: Hyunhee Kim <hyunhee.kim@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Second round of input updates for 3.19.
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Add a table documenting where all the bits are in the v7 touchpad packets.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Protocol v7 uses the middle / right button bits on clickpads to communicate
"location" information of a 3th touch (and possible 4th) touch on
clickpads.
Specifically when 3 touches are down, if one of the 3 touches is in the
left / right button area, this will get reported in the middle / right
button bits and the touchpad will still send a TWO type packet rather then
a MULTI type packet, so when this happens we must add the finger reported
in the button area to the finger count.
Likewise we must also add fingers reported this way to the finger count
when we get MULTI packets.
BugLink: https://bugs.freedesktop.org/show_bug.cgi?id=86338
Cc: stable@vger.kernel.org # 3.17
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The v7 proto differentiates between a primary touch (with high precision)
and a secondary touch (with lower precision). Normally when 2 fingers are
down and one is lifted the still present touch becomes the primary touch,
but some traces have shown that this does not happen always.
This commit deals with this by making alps_get_mt_count() not stop at the
first empty mt slot, and if a touch is present in mt[1] and not mt[0]
moving the data to mt[0] (for input_mt_assign_slots).
BugLink: https://bugs.freedesktop.org/show_bug.cgi?id=86338
Cc: stable@vger.kernel.org # 3.17
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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NEW packets are send to indicate a discontinuity in the finger coordinate
reporting. Specifically a finger may have moved from slot 0 to 1 or vice
versa. INPUT_MT_TRACK takes care of this for us.
NEW packets have 3 problems:
1) They do not contain middle / right button info (on non clickpads)
this can be worked around by preserving the old button state
2) They do not contain an accurate fingercount, and they are
typically send when the number of fingers changes. We cannot use
the old finger count as that may mismatch with the amount of
touch coordinates we've available in the NEW packet
3) Their x data for the second touch is inaccurate leading to
a possible jump of the x coordinate by 16 units when the first
non NEW packet comes in
Since problems 2 & 3 cannot be worked around, just ignore them.
BugLink: https://bugs.freedesktop.org/show_bug.cgi?id=86338
Cc: stable@vger.kernel.org # 3.17
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This patch adds support for CLOCK_BOOTTIME for input event timestamp.
CLOCK_BOOTTIME includes suspend time, so it would allow aplications
to get correct time difference between two events even when system
resumes from suspend state.
Signed-off-by: Aniroop Mathur <a.mathur@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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IBM Trackpoints have a feature to compensate for drift by recalibrating
themselves periodically. By default, if for 0.5 seconds there is no change
in position, it's used as the new zero. This duration is too low. Often,
the calibration happens when the trackpoint is in fact being used.
IBM's Trackpoint Engineering Specifications show a configuration register
that allows changing this duration, rstdft1.
Expose it via sysfs among the other settings.
Signed-off-by: Mike Murdoch <main.haarp@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input subsystem updates from Dmitry Torokhov:
"Two new drivers for Elan hardware (for I2C touchpad and touchscreen
found in several Chromebooks and other devices), a driver for Goodix
touch panel, and small fixes to Cypress I2C trackpad and other input
drivers.
Also we switched to use __maybe_unused instead of gating suspend/
resume code with #ifdef guards to get better compile coverage"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (27 commits)
Input: gpio_keys - fix warning regarding uninitialized 'button' variable
Input: add support for Elan eKTH I2C touchscreens
Input: gpio_keys - fix warning regarding uninitialized 'irq' variable
Input: cyapa - use 'error' for error codes
Input: cyapa - fix resuming the device
Input: gpio_keys - add device tree support for interrupt only keys
Input: amikbd - allocate temporary keymap buffer on the stack
Input: amikbd - fix build if !CONFIG_HW_CONSOLE
Input: lm8323 - missing error check in lm8323_set_disable()
Input: initialize device counter variables with -1
Input: initialize input_no to -1 to avoid subtraction
Input: i8042 - do not try to load on Intel NUC D54250WYK
Input: atkbd - correct MSC_SCAN events for force_release keys
Input: cyapa - switch to using managed resources
Input: lifebook - use "static inline" instead of "inline" in lifebook.h
Input: touchscreen - use __maybe_unused instead of ifdef around suspend/resume
Input: mouse - use __maybe_unused instead of ifdef around suspend/resume
Input: misc - use __maybe_unused instead of ifdef around suspend/resume
Input: cap11xx - support for irq-active-high option
Input: cap11xx - add support for various cap11xx devices
...
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All keypad column pins used as inputs should be pulled up on the STMPE24xx,
but this is not done by the current driver. Add some logic that will do
this properly. The STMPE1601 also has a keypad controller, but explicitly
does *NOT* require you to set up any pull-ups.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The STMPE keypad controller is only used with device tree configured
systems, so force the configuration to come from device tree only, and now
actually get the rows and cols from the device tree too.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This patch avoids unnecessary operations while estimating events per
packet for an input device when event type is not set.
Signed-off-by: Anshul Garg <anshul.g@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Fixed a coding style error, macros with complex values should be
enclosed in parentheses.
Signed-off-by: Asaf Vertz <asaf.vertz@tandemg.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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We do not need to roll our own implementation of delayed work now that we
have proper implementation of mod_delayed_work.
For interrupt-only driven buttons we retain the timer, but we rename
it to release_timer to better reflect its purpose.
Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Dudley Du
Michael Karcher
Chen-Yu Tsai
Dmitry Torokhov
Anshul Garg
Pali Rohár
Axel Lin
Moritz Fischer
Carlo Caione
Sam hung
Srihari Vijayaraghavan
Fabio Estevam
Linus Torvalds
Benjamin Tissoires
Fabian Frederick
Mathias Gottschlag
Nicholas Mc Guire
Felipe Balbi
Hans de Goede
Jaewon Kim
Aniroop Mathur
haarp
Linus Walleij
Anshul Garg
Asaf Vertz