As the driver is using generic device properties, it should work
properly when CONFIG_OF is turned off. This patch removes the
ifdef CONFIGOF and make sure the driver always have of_match_table.
Signed-off-by: Jingkui Wang <jkwang@google.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Some platform drivers use devm_input_allocate_device() together with
sparse_keymap_setup() in their .probe callbacks. While using the former
simplifies error handling, using the latter necessitates calling
sparse_keymap_free() in the error path and upon module unloading to
avoid leaking the copy of the keymap allocated by sparse_keymap_setup().
To help prevent such leaks and enable simpler error handling, make
sparse_keymap_setup() use devm_kmemdup() to create the keymap copy so
that it gets automatically freed.
This works for both managed and non-managed input devices as the keymap
is freed after the last reference to the input device is dropped.
Note that actions previously taken by sparse_keymap_free(), i.e. taking
the input device's mutex and zeroing its keycode and keycodemax fields,
are now redundant because the managed keymap will always be freed after
the input device is unregistered.
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Extend the pwm-beeper driver to support customized frequency for SND_BELL
from device properties.
Signed-off-by: Guan Ben <ben.guan@cn.bosch.com>
Signed-off-by: Mark Jonas <mark.jonas@de.bosch.com>
Signed-off-by: Heiko Schocher <hs@denx.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Sort all devices in alps_model_data by signature and remove
command_mode_resp which is not used anymore.
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Support for devices with ALPS_PROTO_V9 is not implemented yet but we can
detect these alps touchpads and warn users about it.
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Like for other protocols create alps_v4_protocol_data and use it in
alps_identify() function.
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The aux port does not get detected without noloop quirk, so external PS/2
mouse cannot work as result.
The PS/2 mouse can work with this quirk.
BugLink: https://bugs.launchpad.net/bugs/1591053
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Reviewed-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
INPUT_PROP_BUTTONPAD is currently only set through the platform data.
The RMI4 header doc says that this property is there to force the
buttonpad property, so we also need to detect it by looking at
the exported buttons count.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reported-and-tested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Instead of manipulating capabilities bits of input device directly, let's
use input_set_capability() API.
Also, stop setting ABS_X/Y bits explicitly as input_set_abs_params() does
this for us.
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
We have switched the driver to use generic device properties API, so there
is no need to check for presence of DT node before trying parse properties.
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
With the switch to devm, there is no need for ad7879_probe() to return the
touchscreen structure, we can use plain error code. This also fixes issue
introduced with devm concersion, where we returned 0 on success (which
worked OK since IS_ERR(0) would not trigger, but was not correct
regardless).
Fixes: 381f688eee3d ("Input: ad7879 - use more devm interfaces")
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The conversion to devm accidentally removed setting up of I2C client data
upon successful probe of the touchscreen. Let's move this setting into the
core, so we do not forger about it again.
Fixes: 381f688eee3d ("Input: ad7879 - use more devm interfaces")
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Now that %z is standartised in C99 there is no reason to support %Z.
Unlike %L it doesn't even make format strings smaller.
Use BUILD_BUG_ON in a couple ATM drivers.
In case anyone didn't notice lib/vsprintf.o is about half of SLUB which
is in my opinion is quite an achievement. Hopefully this patch inspires
someone else to trim vsprintf.c more.
Link: http://lkml.kernel.org/r/20170103230126.GA30170@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
There is no need to tread the same register twice in a row.
Fixes: ea4348c8462a ("Input: tca8418_keypad - hide gcc-4.9 -Wmaybe-un ...")
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Using regmap this is no longer required.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Up until now only platforms using legacy platform data were able to switch
AUX/VBAT/GPIO pin in GPIO mode and use it as regular GPIO line. Let's
allow platforms using generic device properties to do the same.
Reviewed-by: Michael Hennerich <michael.hennerich@analog.com>
Tested-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
gpiochip_add now has a managed version, and we can remove sysfs attribute
group via devm_add_action_or_reset (at least until we have devm version of
sysfs_create_group). This allows us to get rid of ad7879_remove().
Reviewed-by: Michael Hennerich <michael.hennerich@analog.com>
Tested-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Instead of rolling our own infrastructure to provide uniform access to I2C
and SPI buses, let's switch to using regmap.
Reviewed-by: Michael Hennerich <michael.hennerich@analog.com>
Tested-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Core changes:
- Augment fwnode_get_named_gpiod() to configure the GPIO pin
immediately after requesting it like all other APIs do.
This is a treewide change also updating all users.
- Pass a GPIO label down to gpiod_request() from
fwnode_get_named_gpiod(). This makes debugfs and the userspace
ABI correctly reflect the current in-kernel consumer of a pin
taken using this abstraction. This is a treewide change also
updating all users.
- Rename devm_get_gpiod_from_child() to
devm_fwnode_get_gpiod_from_child() to reflect the fact that this
function is operating on a fwnode object. This is a treewide
change also updating all users.
- Make it possible to take multiple GPIOs in a single hog of device
tree hogs.
- The refactorings switching GPIO chips to use the .set_config()
callback using standard pin control properties and providing
a backend into the pin control subsystem that were also merged
into the pin control tree naturally appear here too.
Testing instrumentation:
- A whole slew of cleanups and improvements to the mockup GPIO
driver. We now have an extended userspace test exercising the
subsystem, and we can inject interrupts etc from userspace
to fully test the core GPIO functionality.
New drivers:
- New driver for the Cortina Systems Gemini GPIO controller.
- New driver for the Exar XR17V352/354/358 chips.
- New driver for the ACCES PCI-IDIO-16 PCI GPIO card.
Driver changes:
- RCAR: set the irqchip parent device, add fine-grained runtime
PM support.
- pca953x: support optional RESET control line on the chip.
- DaVinci: cleanups and simplifications. Add support for multiple
instances.
- .set_multiple() and naming of lines on more or less all of the
ISA/PCI GPIO controllers.
- mcp23s08: refactored to use regmap as a first step to further
rewrites and modernizations.
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Merge tag 'gpio-v4.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO updates from Linus Walleij:
"This is the bulk of GPIO changes for the v4.11 cycle
Core changes:
- Augment fwnode_get_named_gpiod() to configure the GPIO pin
immediately after requesting it like all other APIs do. This is a
treewide change also updating all users.
- Pass a GPIO label down to gpiod_request() from
fwnode_get_named_gpiod(). This makes debugfs and the userspace ABI
correctly reflect the current in-kernel consumer of a pin taken
using this abstraction. This is a treewide change also updating all
users.
- Rename devm_get_gpiod_from_child() to
devm_fwnode_get_gpiod_from_child() to reflect the fact that this
function is operating on a fwnode object. This is a treewide change
also updating all users.
- Make it possible to take multiple GPIOs in a single hog of device
tree hogs.
- The refactorings switching GPIO chips to use the .set_config()
callback using standard pin control properties and providing a
backend into the pin control subsystem that were also merged into
the pin control tree naturally appear here too.
Testing instrumentation:
- A whole slew of cleanups and improvements to the mockup GPIO
driver. We now have an extended userspace test exercising the
subsystem, and we can inject interrupts etc from userspace to fully
test the core GPIO functionality.
New drivers:
- New driver for the Cortina Systems Gemini GPIO controller.
- New driver for the Exar XR17V352/354/358 chips.
- New driver for the ACCES PCI-IDIO-16 PCI GPIO card.
Driver changes:
- RCAR: set the irqchip parent device, add fine-grained runtime PM
support.
- pca953x: support optional RESET control line on the chip.
- DaVinci: cleanups and simplifications. Add support for multiple
instances.
- .set_multiple() and naming of lines on more or less all of the
ISA/PCI GPIO controllers.
- mcp23s08: refactored to use regmap as a first step to further
rewrites and modernizations"
* tag 'gpio-v4.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (61 commits)
gpio: reintroduce devm_get_gpiod_from_child()
gpio: pci-idio-16: Fix PCI BAR index
gpio: pci-idio-16: Fix PCI device ID code
gpio: mockup: implement event injecting over debugfs
gpio: mockup: add a dummy irqchip
gpio: mockup: implement naming the lines
gpio: mockup: code shrink
gpio: mockup: readability tweaks
gpio: Add GPIO support for the ACCES PCI-IDIO-16
gpio: Add the devm_fwnode_get_index_gpiod_from_child() helper
gpio: Rename devm_get_gpiod_from_child()
gpio: mcp23s08: Select REGMAP/REGMAP_I2C to fix build error
gpio: ws16c48: Add support for GPIO names
gpio: gpio-mm: Add support for GPIO names
gpio: 104-idio-16: Add support for GPIO names
gpio: 104-idi-48: Add support for GPIO names
gpio: 104-dio-48e: Add support for GPIO names
gpio: ws16c48: Remove unnecessary driver_data set
gpio: gpio-mm: Remove unnecessary driver_data set
gpio: 104-idio-16: Remove unnecessary driver_data set
...
Previously, tsc2007 would report as ABS_PRESSURE:
0 for no pressure (resistance infinite)
high value for soft pressure (high resistance)
low value for firm pressure (lower resistance)
This does not matter for most applications (e.g. GUI, Menu, Scrolling etc.)
where the ABS_PRESSURE is ignored and only BTN_TOUCH is processed to detect
screen taps.
Only some special graphics applications read the pressure channel and they
will be mixed up by this non-monotonic relation.
So we fix it to become:
0 for no pressure (resistance infinite)
low value for soft pressure (high resistance)
high value for firm pressure (lower resistance)
While this patch changes the values reported to userspace, ABS_PRESSURE is
used rarely by userspace. Most software only relies on BTN_TOUCH (boolean),
which is not affected by this patch. Some graphics software makes use of
the interface and does not work correctly with the currently used inverted
behaviour.
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Reviewed-By: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Rename tsc2007_calculate_pressure to tsc2007_calculate_resistance because
that is what it does.
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The I2C core always reports a MODALIAS of the form i2c:<foo> even if the
device was registered via OF, this means that exporting the OF device ID
table device aliases in the module is not needed. But in order to change
how the core reports modaliases to user-space, it's better to export it.
Before this patch:
$ modinfo drivers/input/touchscreen/zet6223.ko | grep alias
alias: i2c:zet6223
After this patch:
$ modinfo drivers/input/touchscreen/zet6223.ko | grep alias
alias: of:N*T*Czeitec,zet6223C*
alias: of:N*T*Czeitec,zet6223
alias: i2c:zet6223
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The tsc2007 chip not only has a resistive touch screen controller but
also an external AUX adc imput which can be used for an ambient
light sensor, battery voltage monitoring or any general purpose.
Additionally it can measure the chip temperature.
This extension provides an iio interface for these adc channels.
Since it is not wasting much resources and is very straightforward,
we simply provide all other adc channels as optional iio interfaces
as weel. This can be used for debugging or special applications.
This patch also splits the tsc2007 driver in several source files:
tsc2007.h -- constants, structs and stubs
tsc2007_core.c -- functional parts of the original driver
tsc2007_iio.c -- the optional iio stuff
Makefile magic allows to conditionally link the iio stuff
if CONFIG_IIO=y or =m in a way that it works with
CONFIG_TOUCHSCREEN_TSC2007=m.
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Reviewed-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
1. check if chip is really present and don't succeed if it isn't.
2. if it succeeds, power down the chip until accessed
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
ELAN0605 has been confirmed to be a variant of ELAN0600, which is
blacklisted in the hid-core to be managed by elan_i2c. This device can be
found in Lenovo ideapad 310s (80U4000).
Signed-off-by: Hiroka IHARA <ihara_h@live.jp>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Instead of supporting legacy platform data (of which we have no mainline
users) and OF-based properties, let's switch to generic device properties.
This will still allow legacy boards to use the driver (by defining property
sets and attaching them to the drivers) and will simplify probe and make
driver usable on ACPI-based systems as well.
Reviewed-By: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
In case of an optional regulator missing, regulator core will return
ERR_PTR(-ENOENT) and not NULL, so the check for missing regulator is
incorrect. Also, the regulator is not optional, it may simply be missing
from platform description, so let's use devm_regulator_get() and rely on
regulator core to give us dummy supply when real one is not available.
Fixes: d257f2980feb ("Input: tsc2005 - convert to gpiod")
Acked-By: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To be prepared for SPI module loading using full compatible strings from
device tree, let's add OF module device table data.
Reviewed-By: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This is a basic driver for the Zeitec ZET6223 I2C touchscreen
controllers. The driver does not support firmware loading, which is not
required for all tablets which contain this chip.
Signed-off-by: Jelle van der Waa <jelle@vdwaa.nl>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Postpone axis initialization to the first open instead of doing it
in joydev_connect. This is to make sure the generated startup events
are representative of the current joystick state rather than what
it was when joydev_connect() was called, potentially much earlier.
Once the first user is connected to joydev node we'll be updating
joydev->abs[] values and subsequent clients will be getting correct
initial states as well.
This solves issues with joystick driven menus that start scrolling
up each time they are started, until the user moves the joystick to
generate events. In emulator menu setups where the menu program is
restarted every time the game exits, the repeated need to move the
joystick to stop the unintended scrolling gets old rather quickly...
Signed-off-by: Raphael Assenat <raph@raphnet.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
On the latest series of ThinkPads, the button events for the TrackPoint
are reported through the touchpad itself as opposed to the TrackPoint
device. In order to report these buttons properly, we need to forward
them to the TrackPoint device and notify psmouse to send the button
presses/releases.
Signed-off-by: Lyude Paul <thatslyude@gmail.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This patch does several cleanup changes to F30 code
- switch to using BIT() macro
- use DIV_ROUND_UP() where appropriate
- factor out code setting up and reporting buttons
- use single loop when reporting buttons: arithmetic is cheap compared to
conditionals and associated branch misprediction.
Tested-By: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Instead of using custom method of "passing" extended buttons from the
touchpad to trackstick, let's switch to the newly introduced SERIO_OOB_DATA
channel.
Tested-By: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The tracksticks on the Lenovo thinkpads have their buttons connected
through the touchpad device. We already fixed that in synaptics.c, but
when we switch the device into RMI4 mode to have proper support, the
pass-through functionality can't deal with them easily.
We add a new PS/2 flag and protocol designed for psmouse. The RMI4 F03
pass-through can then emit a special set of commands to notify psmouse the
state of the buttons.
This patch implements the protocol in psmouse, while an other will
do the same for rmi4-f03.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
On some newer boards using mkbp we're hooking up non-matrix buttons and
switches to the EC but NOT to the main application processor.
Let's add kernel support to handle this. Rather than creating a whole
new input driver, we'll continue to use cros_ec_keyb and just report the
new keys.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
With CONFIG_SERIO=m, we get a build error for the rmi4-f03 driver,
added in linux-4.10:
warning: (HID_RMI) selects RMI4_F03 which has unmet direct dependencies (!UML && INPUT && RMI4_CORE && (SERIO=y || RMI4_CORE=SERIO))
drivers/input/built-in.o: In function `rmi_f03_attention':
rmi_f03.c:(.text+0xcfe0): undefined reference to `serio_interrupt'
rmi_f03.c:(.text+0xd055): undefined reference to `serio_interrupt'
drivers/input/built-in.o: In function `rmi_f03_remove':
rmi_f03.c:(.text+0xd115): undefined reference to `serio_unregister_port'
drivers/input/built-in.o: In function `rmi_f03_probe':
rmi_f03.c:(.text+0xd209): undefined reference to `__serio_register_port'
An earlier patch tried to fix this, but missed the HID_RMI driver that
does a 'select' on the F03 backend.
This adds a hidden Kconfig symbol that enforces 'serio' to be enabled
when RMI4-F03 is, which covers all cases.
Fixes: d7ddad0acc4a ("Input: synaptics-rmi4 - fix F03 build error when serio is module")
Fixes: c5e8848fc98e ("Input: synaptics-rmi4 - add support for F03")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Fix to return error code -ENOMEM from the devm_kzalloc() error handling
case instead of 0, as done elsewhere in this function.
Fixes: 6bd0dcfacf28 ("Input: synaptics-rmi4 - factor out functions
from probe")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Set the LED_CORE_SUSPENDRESUME flag on our LED device so the
LED state will be automatically restored by LED core on resume.
Since Xbox One pads stop flashing only when reinitialized, we'll
send them the initialization packet so they calm down too.
Signed-off-by: Cameron Gutman <aicommander@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
If a function needs to communicate with an other, it's better to have
a way to retrieve this other.
Reviewed-by: Andrew Duggan <aduggan@synaptics.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The Xbox One S requires an ack to its mode button report, otherwise it
continuously retransmits the report. This makes the mode button appear to
be stuck down after it is pressed for the first time.
Signed-off-by: Cameron Gutman <aicommander@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Rename devm_get_gpiod_from_child() into
devm_fwnode_get_gpiod_from_child() to reflect the fact that this
function is operating on a fwnode object.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
We have a nice macro ensuring that the value is within certain range, let's
use it instead of open-coding.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
