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Use use device_property_count_u32() directly, that makes code neater.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Use use device_property_count_u32() directly, that makes code neater.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Drivers now have the option to have the driver core create and remove any
needed sysfs attribute files. So take advantage of that and do not
register "by hand" a sysfs group of attributes.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Drivers now have the option to have the driver core create and remove any
needed sysfs attribute files. So take advantage of that and do not
register "by hand" a bunch of sysfs files.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Sync up with mainline to bring in device_property_count_u32 andother
newer APIs.
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
- newer systems with Elan touchpads will be switched over to SMBus
- HP Spectre X360 will be using SMbus/RMI4
- checks for invalid USB descriptors in kbtab and iforce
- build fixes for applespi driver (misconfigs)
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: iforce - add sanity checks
Input: applespi - use struct_size() helper
Input: kbtab - sanity check for endpoint type
Input: usbtouchscreen - initialize PM mutex before using it
Input: applespi - add dependency on LEDS_CLASS
Input: synaptics - enable RMI mode for HP Spectre X360
Input: elantech - annotate fall-through case in elantech_use_host_notify()
Input: elantech - enable SMBus on new (2018+) systems
Input: applespi - fix trivial typo in struct description
Input: applespi - select CRC16 module
Input: applespi - fix warnings detected by sparse
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The ARM w90x900 platform is getting removed, so this driver is obsolete.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The ARM w90x900 platform is getting removed, so this driver is obsolete.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This should be 'synaptics', not 'synpatics'
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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A few vendor specific bindings are now covered by common bindings.
Let the driver parse the common bindings to make use of common
inverting and swapping mechnism. Aslo make use of
touchscreen_report_pos() to ensure the correct inverting-swapping
order.
The vendor specific properties are used as default (backward
compatibility) and gets overwritten by common bindings.
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The endpoint type should also be checked before a device
is accepted.
Reported-by: syzbot+5efc10c005014d061a74@syzkaller.appspotmail.com
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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One of the more common cases of allocation size calculations is finding
the size of a structure that has a zero-sized array at the end, along
with memory for some number of elements for that array. For example:
struct touchpad_protocol {
...
struct tp_finger fingers[0];
};
Make use of the struct_size() helper instead of an open-coded version
in order to avoid any potential type mistakes.
So, replace the following form:
sizeof(*tp) + tp->number_of_fingers * sizeof(tp->fingers[0]);
with:
struct_size(tp, fingers, tp->number_of_fingers)
This code was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The driver should check whether the endpoint it uses has the correct
type.
Reported-by: syzbot+c7df50363aaff50aa363@syzkaller.appspotmail.com
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Mutexes shall be initialized before they are used.
Fixes: 12e510dbc57b2 ("Input: usbtouchscreen - fix deadlock in autosuspend")
Reported-by: syzbot+199ea16c7f26418b4365@syzkaller.appspotmail.com
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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If applespi is enabled, but LEDs class support is not, the build fails:
drivers/input/keyboard/applespi.o: In function `applespi_probe':
applespi.c:(.text+0x1fcd): undefined reference to `devm_led_classdev_register_ext'
Add "depends on LEDS_CLASS" to the Konfig
Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: 038b1a05eae6 ("Input: add Apple SPI keyboard and trackpad driver")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Power and volume button support for 5th and 6th generation Microsoft
Surface devices via soc_button_array.
Note that these devices use the same MSHW0040 device as on the Surface
Pro 4, however the implementation is different (GPIOs vs. ACPI
notifications). Thus some checking is required to ensure we only load
this driver on the correct devices.
Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The 2016 kabylake HP Spectre X360 (model number 13-w013dx) works much better
with psmouse.synaptics_intertouch=1 kernel parameter, so let's enable RMI4
mode automatically.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=204115
Reported-by: Nate Graham <pointedstick@zoho.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Currently, evdev stamps events with timestamps acquired in evdev_events()
However, this timestamping may not be accurate in terms of measuring
when the actual event happened.
Let's allow individual drivers specify timestamp in order to provide a more
accurate sense of time for the event. It is expected that drivers will set the
timestamp in their hard interrupt routine.
Signed-off-by: Atif Niyaz <atifniyaz@google.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Instead of installing custom devm cleanup action to remove attribute
groups on failure, let's use the dedicated devm API.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Instead of manually disabling regulators when devm_add_action() fails we can
use devm_add_action_or_reset() which does it for us.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Instead of installing custom devm cleanup action to remove attribute
groups on failure, let's use the dedicated devm API.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The function rmi_2d_sensor_set_input_params is declared static and marked
EXPORT_SYMBOL_GPL, which is at best an odd combination. Because the
function is not used outside of the drivers/input/rmi4/rmi_2d_sensor.c
file it is defined in, this commit removes the EXPORT_SYMBOL_GPL() marking.
Signed-off-by: Denis Efremov <efremov@linux.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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devm_platform_ioremap_resource() internally have platform_get_resource()
and devm_ioremap_resource() in it. So instead of calling them separately
use devm_platform_ioremap_resource() directly.
Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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devm_platform_ioremap_resource() internally have platform_get_resource()
and devm_ioremap_resource() in it. So instead of calling them separately
use devm_platform_ioremap_resource() directly.
Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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devm_platform_ioremap_resource() internally have platform_get_resource()
and devm_ioremap_resource() in it. So instead of calling them separately
use devm_platform_ioremap_resource() directly.
Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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devm_platform_ioremap_resource() internally have platform_get_resource()
and devm_ioremap_resource() in it. So instead of calling them separately
use devm_platform_ioremap_resource() directly.
Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This avoids a warning when building with -Wimplicit-fallthrough.
Fixes: 883a2a80f79c ("Input: elantech - enable SMBus on new (2018+) systems")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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There are some new HP laptops with Elantech touchpad that don't support
multitouch.
Currently we use ETP_NEW_IC_SMBUS_HOST_NOTIFY() to check if SMBus is supported,
but in addition to firmware version, the bus type also informs us whether the IC
can support SMBus. To avoid breaking old ICs, we will only enable SMbus support
based the bus type on systems manufactured after 2018.
Lastly, let's consolidate all checks into elantech_use_host_notify() and use it
to determine whether to use PS/2 or SMBus.
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This fixes a typo in the keyboard_protocol description.
coodinate -> coordinate.
Signed-off-by: Nikolas Nyby <nikolas@gnu.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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In some rare randconfig builds, CRC16 is disabled, which leads
to a link error:
drivers/input/keyboard/applespi.o: In function `applespi_send_cmd_msg':
applespi.c:(.text+0x449f): undefined reference to `crc16'
drivers/input/keyboard/applespi.o: In function `applespi_verify_crc':
applespi.c:(.text+0x7538): undefined reference to `crc16'
This symbol is meant to be selected for each user in Kconfig,
so do that here as well.
Fixes: 038b1a05eae6 ("Input: add Apple SPI keyboard and trackpad driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This driver set the colorspace to SRGB, but that makes no sense for
a touchscreen. Use RAW instead. This also ensures consistency with the
v4l_pix_format_touch() call that's used in v4l2-ioctl.c.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Acked-by: Florian Echtler <floe@butterbrot.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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This patch adds support for the FlySky FS-iA6B RC receiver (serial IBUS).
It allows the usage of the FlySky FS-i6 and other AFHDS compliant remote
controls as a joystick input device.
To use it, a patch to inputattach which adds the FS-iA6B as a 115200 baud
serial device is required. I will upstream it after this patch is merged.
More information about the hardware can be found here:
https://notsyncing.net/?p=blog&b=2018.linux-fsia6b
Signed-off-by: Markus Koch <markus@notsyncing.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This makes sure that we convert from on-wire to CPU endianness in
applespi_debug_update_dimensions() and also marks as "static" as it is not
needed to be visible outside of the driver.
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Ronald Tschalär <ronald@innovation.ch>
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 more input updates from Dmitry Torokhov:
- Apple SPI keyboard and trackpad driver for newer Macs
- ALPS driver will ignore trackpoint-only devices to give the
trackpoint driver a chance to handle them properly
- another Lenovo is switched over to SMbus from PS/2
- assorted driver fixups.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: alps - fix a mismatch between a condition check and its comment
Input: psmouse - fix build error of multiple definition
Input: applespi - remove set but not used variables 'sts'
Input: add Apple SPI keyboard and trackpad driver
Input: alps - don't handle ALPS cs19 trackpoint-only device
Input: hyperv-keyboard - remove dependencies on PAGE_SIZE for ring buffer
Input: adp5589 - initialize GPIO controller parent device
Input: iforce - remove empty multiline comments
Input: synaptics - fix misuse of strlcpy
Input: auo-pixcir-ts - switch to using devm_add_action_or_reset()
Input: gtco - bounds check collection indent level
Input: mtk-pmic-keys - add of_node_put() before return
Input: sun4i-lradc-keys - add of_node_put() before return
Input: synaptics - whitelist Lenovo T580 SMBus intertouch
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Prepare second round of input updates for 5.3 merge window.
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In the function alps_is_cs19_trackpoint(), we check if the param[1] is
in the 0x20~0x2f range, but the code we wrote for this checking is not
correct:
(param[1] & 0x20) does not mean param[1] is in the range of 0x20~0x2f,
it also means the param[1] is in the range of 0x30~0x3f, 0x60~0x6f...
Now fix it with a new condition checking ((param[1] & 0xf0) == 0x20).
Fixes: 7e4935ccc323 ("Input: alps - don't handle ALPS cs19 trackpoint-only device")
Cc: stable@vger.kernel.org
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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trackpoint_detect() should be static inline while
CONFIG_MOUSE_PS2_TRACKPOINT is not set, otherwise, we build fails:
drivers/input/mouse/alps.o: In function `trackpoint_detect':
alps.c:(.text+0x8e00): multiple definition of `trackpoint_detect'
drivers/input/mouse/psmouse-base.o:psmouse-base.c:(.text+0x1b50): first defined here
Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: 55e3d9224b60 ("Input: psmouse - allow disabing certain protocol extensions")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Fixes gcc '-Wunused-but-set-variable' warning:
drivers/input/keyboard/applespi.c: In function applespi_set_bl_level:
drivers/input/keyboard/applespi.c:902:6: warning: variable sts set but not used [-Wunused-but-set-variable]
Fixes: b426ac0452093d ("Input: add Apple SPI keyboard and trackpad driver")
Signed-off-by: Mao Wenan <maowenan@huawei.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The keyboard and trackpad on recent MacBook's (since 8,1) and
MacBookPro's (13,* and 14,*) are attached to an SPI controller instead
of USB, as previously. The higher level protocol is not publicly
documented and hence has been reverse engineered. As a consequence there
are still a number of unknown fields and commands. However, the known
parts have been working well and received extensive testing and use.
In order for this driver to work, the proper SPI drivers need to be
loaded too; for MB8,1 these are spi_pxa2xx_platform and spi_pxa2xx_pci;
for all others they are spi_pxa2xx_platform and intel_lpss_pci.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=99891
Link: https://bugzilla.kernel.org/show_bug.cgi?id=108331
Signed-off-by: Ronald Tschalär <ronald@innovation.ch>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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On a latest Lenovo laptop, the trackpoint and 3 buttons below it
don't work at all, when we move the trackpoint or press those 3
buttons, the kernel will print out:
"Rejected trackstick packet from non DualPoint device"
This device is identified as an alps touchpad but the packet has
trackpoint format, so the alps.c drops the packet and prints out
the message above.
According to XiaoXiao's explanation, this device is named cs19 and
is trackpoint-only device, its firmware is only for trackpoint, it
is independent of touchpad and is a device completely different from
DualPoint ones.
To drive this device with mininal changes to the existing driver, we
just let the alps driver not handle this device, then the trackpoint.c
will be the driver of this device if the trackpoint driver is enabled.
(if not, this device will fallback to a bare PS/2 device)
With the trackpoint.c, this trackpoint and 3 buttons all work well,
they have all features that the trackpoint should have, like
scrolling-screen, drag-and-drop and frame-selection.
Signed-off-by: XiaoXiao Liu <sliuuxiaonxiao@gmail.com>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Define the ring buffer size as a constant expression because it should
not depend on the guest page size.
Signed-off-by: Maya Nakamura <m.maya.nakamura@gmail.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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While not strictly required for normal operation setting the GPIO parent
device allows the GPIO framework to generate more verbose debug output for
the GPIO chip.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Those are remnants of the SPDX identifier migration, which haven't been
removed properly.
Signed-off-by: Tim Schumacher <timschumi@gmx.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Sync up with mainline to resolve conflicts in iforce driver.
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Probable cut&paste typo - use the correct field size.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Converts ARM the text files to ReST, preparing them to be an
architecture book.
The conversion is actually:
- add blank lines and identation in order to identify paragraphs;
- fix tables markups;
- add some lists markups;
- mark literal blocks;
- adjust title markups.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Reviewed-by Corentin Labbe <clabbe.montjoie@gmail.com> # For sun4i-ss
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Pull stream_open() updates from Kirill Smelkov:
"This time on stream_open front it is only two small changes:
- the first one converts stream_open.cocci to treat all functions
that start with wait_.* as blocking. Previously it was only
wait_event_.* functions that were considered as blocking, but this
was falsely reporting several deadlock cases as only warning.
This was picked by linux-kbuild and entered mainline as commit
0c4ab18fc33b ("coccinelle: api/stream_open: treat all wait_.*()
calls as blocking"), and already merged earlier.
- the second one teaches stream_open.cocci to consider files as being
stream-like even if they use noop_llseek. It results in two more
drivers being converted to stream_open() (mousedev.c and
hid-sensor-custom.c)"
* tag 'stream_open-5.3' of https://lab.nexedi.com/kirr/linux:
*: convert stream-like files -> stream_open, even if they use noop_llseek
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This patch continues 10dce8af3422 (fs: stream_open - opener for
stream-like files so that read and write can run simultaneously without
deadlock) and c5bf68fe0c86 (*: convert stream-like files from
nonseekable_open -> stream_open) and teaches steam_open.cocci to
consider files as being stream-like not only if they have
.llseek=no_llseek, but also if they have .llseek=noop_llseek.
This is safe to do: the comment about noop_llseek says
This is an implementation of ->llseek useable for the rare special case when
userspace expects the seek to succeed but the (device) file is actually not
able to perform the seek. In this case you use noop_llseek() instead of
falling back to the default implementation of ->llseek.
and in general noop_llseek was massively added to drivers in 6038f373a3dc
(llseek: automatically add .llseek fop) when changing default for NULL .llseek
from NOP to no_llseek with the idea to avoid breaking compatibility, if
maybe some user-space program was using lseek on a device without caring
about the result, but caring if it was an error or not.
Amended semantic patch produces two changes when applied tree-wide:
drivers/hid/hid-sensor-custom.c:690:8-24: WARNING: hid_sensor_custom_fops: .read() has stream semantic; safe to change nonseekable_open -> stream_open.
drivers/input/mousedev.c:564:1-17: ERROR: mousedev_fops: .read() can deadlock .write(); change nonseekable_open -> stream_open to fix.
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Jan Blunck <jblunck@suse.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Kirill Smelkov <kirr@nexedi.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
- an update to Elan touchpad SMBus driver to fetch device parameters
(size, resolution) while it is still in PS/2 mode, before switching
over to SMBus, as in that mode some devices return garbage dimensions
- update to iforce joystick driver
- miscellaneous driver fixes
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (48 commits)
Input: gpio_keys_polled - allow specifying name of input device
Input: edt-ft5x06 - simplify event reporting code
Input: max77650-onkey - add MODULE_ALIAS()
Input: atmel_mxt_ts - fix leak in mxt_update_cfg()
Input: synaptics - enable SMBUS on T480 thinkpad trackpad
Input: atmel_mxt_ts - fix -Wunused-const-variable
Input: joydev - extend absolute mouse detection
HID: quirks: Refactor ELAN 400 and 401 handling
Input: elan_i2c - export the device id whitelist
Input: edt-ft5x06 - use get_unaligned_be16()
Input: iforce - add the Saitek R440 Force Wheel
Input: iforce - use unaligned accessors, where appropriate
Input: iforce - drop couple of temps from transport code
Input: iforce - drop bus type from iforce structure
Input: iforce - use DMA-safe buffores for USB transfers
Input: iforce - allow callers supply data buffer when fetching device IDs
Input: iforce - only call iforce_process_packet() if initialized
Input: iforce - signal command completion from transport code
Input: iforce - do not combine arguments for iforce_process_packet()
Input: iforce - factor out hat handling when parsing packets
...
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devm_add_action_or_reset() is introduced as a helper function which
internally calls devm_add_action(). If devm_add_action() fails
then it will execute the action mentioned and return the error code.
This reduce source code size (avoid writing the action twice)
and reduce the likelyhood of bugs.
Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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