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This patch adds key and switch support for the Azoteq IQS620A,
IQS621, IQS622, IQS624 and IQS625 multi-function sensors.
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is the "big" set of driver core changes for 5.7-rc1.
Nothing huge in here, just lots of little firmware core changes and
use of new apis, a libfs fix, a debugfs api change, and some driver
core deferred probe rework.
All of these have been in linux-next for a while with no reported
issues"
* tag 'driver-core-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (44 commits)
Revert "driver core: Set fw_devlink to "permissive" behavior by default"
driver core: Set fw_devlink to "permissive" behavior by default
driver core: Replace open-coded list_last_entry()
driver core: Read atomic counter once in driver_probe_done()
libfs: fix infoleak in simple_attr_read()
driver core: Add device links from fwnode only for the primary device
platform/x86: touchscreen_dmi: Add info for the Chuwi Vi8 Plus tablet
platform/x86: touchscreen_dmi: Add EFI embedded firmware info support
Input: icn8505 - Switch to firmware_request_platform for retreiving the fw
Input: silead - Switch to firmware_request_platform for retreiving the fw
selftests: firmware: Add firmware_request_platform tests
test_firmware: add support for firmware_request_platform
firmware: Add new platform fallback mechanism and firmware_request_platform()
Revert "drivers: base: power: wakeup.c: Use built-in RCU list checking"
drivers: base: power: wakeup.c: Use built-in RCU list checking
component: allow missing unbind callback
debugfs: remove return value of debugfs_create_file_size()
debugfs: Check module state before warning in {full/open}_proxy_open()
firmware: fix a double abort case with fw_load_sysfs_fallback
arch_topology: Fix putting invalid cpu clk
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Unfortunately sofar we have been unable to get permission to redistribute
icn8505 touchscreen firmwares in linux-firmware. This means that people
need to find and install the firmware themselves before the touchscreen
will work
Some UEFI/x86 tablets with an icn8505 touchscreen have a copy of the fw
embedded in their UEFI boot-services code.
This commit makes the icn8505 driver use the new firmware_request_platform
function, which will fallback to looking for such an embedded copy when
direct filesystem lookup fails. This will make the touchscreen work OOTB
on devices where there is a fw copy embedded in the UEFI code.
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20200115163554.101315-9-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Unfortunately sofar we have been unable to get permission to redistribute
Silead touchscreen firmwares in linux-firmware. This means that people
need to find and install the firmware themselves before the touchscreen
will work
Some UEFI/x86 tablets with a Silead touchscreen have a copy of the fw
embedded in their UEFI boot-services code.
This commit makes the silead driver use the new firmware_request_platform
function, which will fallback to looking for such an embedded copy when
direct filesystem lookup fails. This will make the touchscreen work OOTB
on devices where there is a fw copy embedded in the UEFI code.
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20200115163554.101315-8-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Replace open-coded __set_bit() with the function.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Link: https://lore.kernel.org/r/cf1dda3a372896cb01033ce084a7deb9620df7aa.1594599118.git.mirq-linux@rere.qmqm.pl
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.
[1] https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20200707180857.GA30600@embeddedor
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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usb_free_coherent() is safe with NULL addr and this check is
not required.
Signed-off-by: Xu Wang <vulab@iscas.ac.cn>
Link: https://lore.kernel.org/r/20200707030905.3123-1-vulab@iscas.ac.cn
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Switch to the "new" I2C probe API.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Reviewed-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Link: https://lore.kernel.org/r/20200520153936.46869-3-sebastian.reichel@collabora.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The variable error is being initialized with a value that is
never read and it is being updated later with a new value. The
initialization is redundant and can be removed.
Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20200603140431.131347-1-colin.king@canonical.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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If CONFIG_INPUT_IQS269A is selected yet CONFIG_I2C is not, the build
fails. To solve this problem, add I2C as a dependency.
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Reported-by: kbuild test robot <lkp@intel.com>
Fixes: 04e49867fad1 ("Input: add support for Azoteq IQS269A")
Link: https://lore.kernel.org/r/1589809466-22748-1-git-send-email-jeff@labundy.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Apply some DRY-ing to elants_i2c_execute_command() callers. This pulls
polling and error printk()s into a single function.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Link: https://lore.kernel.org/r/6c576f688b385235c65b461410a917080d27e825.1587923061.git.mirq-linux@rere.qmqm.pl
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Allow overriding of information from hardware and support additional
common DT properties like axis inversion. This is required for eg.
Nexus 7 and TF300T where the programmed values in firmware differ
from reality.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
[moved "prop" before DMA buffer]
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Link: https://lore.kernel.org/r/49ea996878264f7c8bde25204e4ddf4b1e85ae71.1587923061.git.mirq-linux@rere.qmqm.pl
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Driver only ever reports MT events and input_mt_init_slots() sets up
emulated axes already. Clear the capabilities not generated directly
and move MT axes setup, so they are visible by input_mt_init_slots().
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Tested-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/d5eee8cd305adb144a11264d70da94f7b6570366.1587923061.git.mirq-linux@rere.qmqm.pl
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Merge for-linus branch to sync Elan touchscreen driver code.
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The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
sizeof(flexible-array-member) triggers a warning because flexible array
members have incomplete type[1]. There are some instances of code in
which the sizeof operator is being incorrectly/erroneously applied to
zero-length arrays and the result is zero. Such instances may be hiding
some bugs. So, this work (flexible-array member conversions) will also
help to get completely rid of those sorts of issues.
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20200507185347.GA14499@embeddedor
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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On some X86 devices we do not register an input-device, because the
power-button is also handled by the soc_button_array (GPIO) input driver,
and we want to avoid reporting power-button presses to userspace twice.
Sofar when we did this we also did not register our interrupt handlers,
since those were only necessary to report input events.
But on at least 2 device models the Medion Akoya E1239T and the GPD win,
the GPIO pin used by the soc_button_array driver for the power-button
cannot wakeup the system from suspend. Why this does not work is not clear,
I've tried comparing the value of all relevant registers on the Cherry
Trail SoC, with those from models where this does work. I've checked:
PMC registers: FUNC_DIS, FUNC_DIS2, SOIX_WAKE_EN, D3_STS_0, D3_STS_1,
D3_STDBY_STS_0, D3_STDBY_STS_1; PMC ACPI I/O regs: PM1_STS_EN, GPE0a_EN
and they all have identical contents in the working and non working cases.
I suspect that the firmware either sets some unknown register to a value
causing this, or that it turns off a power-plane which is necessary for
GPIO wakeups to work during suspend.
What does work on the Medion Akoya E1239T is letting the AXP288 wakeup
the system on a power-button press (the GPD win has a different PMIC).
Move the registering of the power-button press/release interrupt-handler
from axp20x_pek_probe_input_device() to axp20x_pek_probe() so that the
PMIC will wakeup the system on a power-button press, even if we do not
register an input device.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Link: https://lore.kernel.org/r/20200426155757.297087-1-hdegoede@redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Fix to return a negative error code from the input_register_device()
error handling case instead of 0, as done elsewhere in this function.
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20200428134948.78343-1-weiyongjun1@huawei.com
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Fix a use-after-free noticed by running with KASAN enabled. If
rmi_irq_fn() is run twice in a row, then rmi_f11_attention() (among
others) will end up reading from drvdata->attn_data.data, which was
freed and left dangling in rmi_irq_fn().
Commit 55edde9fff1a ("Input: synaptics-rmi4 - prevent UAF reported by
KASAN") correctly identified and analyzed this bug. However the attempted
fix only NULLed out a local variable, missing the fact that
drvdata->attn_data is a struct, not a pointer.
NULL out the correct pointer in the driver data to prevent the attention
functions from copying from it.
Fixes: 55edde9fff1a ("Input: synaptics-rmi4 - prevent UAF reported by KASAN")
Fixes: b908d3cd812a ("Input: synaptics-rmi4 - allow to add attention data")
Signed-off-by: Evan Green <evgreen@chromium.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20200427145537.1.Ic8f898e0147beeee2c005ee7b20f1aebdef1e7eb@changeid
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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On the Lenovo ThinkPad Twist S230u (3347-4HU) with BIOS version
"GDETC1WW (1.81 ) 06/27/2019", the keyboard, Synaptics TouchPad, and
TrackPoint either do not function or stop functioning a few minutes
after boot. This problem has been noted before, perhaps only occurring
with BIOS 1.57 and later.[1][2][3][4][5]
Odds of a BIOS fix appear to be low: 1.57 was released over 6 years ago
and although the [BIOS changelog] notes "Fixed an issue of UEFI
touchpad/trackpoint/keyboard/touchscreen" in 1.58, it appears to be
insufficient.
Setting i8042.reset=1 or adding 33474HU to the reset list avoids the
issue on my system from either warm or cold boot.
[1]: https://bugs.launchpad.net/bugs/1210748
[2]: https://bbs.archlinux.org/viewtopic.php?pid=1360425
[3]: https://forums.linuxmint.com/viewtopic.php?f=46&t=41200
[4]: https://forums.linuxmint.com/viewtopic.php?f=49&t=157115
[5]: https://forums.lenovo.com/topic/findpost/27/1337119
[BIOS changelog]: https://download.lenovo.com/pccbbs/mobiles/gduj33uc.txt
Signed-off-by: Kevin Locke <kevin@kevinlocke.name>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/94f384b0f75f90f71425d7dce7ac82c59ddb87a8.1587702636.git.kevin@kevinlocke.name
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This reverts commit 18931506465a762ffd3f4803d36a18d336a67da9. From Kevin
Locke:
"... nomux only appeared to fix the issue because the controller
continued working after warm reboots. After more thorough testing from
both warm and cold start, I now believe the entry should be added to
i8042_dmi_reset_table rather than i8042_dmi_nomux_table as i8042.reset=1
alone is sufficient to avoid the issue from both states while
i8042.nomux is not."
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According to the file name and Kconfig, a 'k' is missing in this driver
name. It should be "dlink-dir685-touchkeys".
Fixes: 131b3de7016b ("Input: add D-Link DIR-685 touchkeys driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20200412213937.5287-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Sending [ 0x05, 0x20, 0x00, 0x0f, 0x06 ] packet for Xbox One S controllers
fixes an issue where controller is stuck in Bluetooth mode and not sending
any inputs.
Signed-off-by: Łukasz Patron <priv.luk@gmail.com>
Reviewed-by: Cameron Gutman <aicommander@gmail.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20200422075206.18229-1-priv.luk@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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input_flush_device() should only be called once the struct file is being
released and no open descriptors remain, but evdev_flush() was calling
it whenever a file descriptor was closed.
This caused uploaded force-feedback effects to be erased when a process
did a dup()/close() on the event FD, called system(), etc.
Call input_flush_device() from evdev_release() instead.
Reported-by: Mathieu Maret <mathieu.maret@gmail.com>
Signed-off-by: Brendan Shanks <bshanks@codeweavers.com>
Link: https://lore.kernel.org/r/20200421231003.7935-1-bshanks@codeweavers.com
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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On the Lenovo ThinkPad Twist S230u (3347-4HU) with BIOS version
"GDETC1WW (1.81 ) 06/27/2019", whether booted in UEFI or Legacy/CSM mode
the keyboard, Synaptics TouchPad, and TrackPoint either do not function
or stop functioning a few minutes after boot. This problem has been
noted before, perhaps only occurring on BIOS 1.57 and
later.[1][2][3][4][5]
This model does not have an external PS/2 port, so mux does not appear
to be useful.
Odds of a BIOS fix appear to be low: 1.57 was released over 6 years ago
and although the [BIOS changelog] notes "Fixed an issue of UEFI
touchpad/trackpoint/keyboard/touchscreen" in 1.58, it appears to be
insufficient.
Adding 33474HU to the nomux list avoids the issue on my system.
[1]: https://bugs.launchpad.net/bugs/1210748
[2]: https://bbs.archlinux.org/viewtopic.php?pid=1360425
[3]: https://forums.linuxmint.com/viewtopic.php?f=46&t=41200
[4]: https://forums.linuxmint.com/viewtopic.php?f=49&t=157115
[5]: https://forums.lenovo.com/topic/findpost/27/1337119
[BIOS changelog]: https://download.lenovo.com/pccbbs/mobiles/gduj33uc.txt
Signed-off-by: Kevin Locke <kevin@kevinlocke.name>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/feb8a8339a67025dab3850e6377eb6f3a0e782ba.1587400635.git.kevin@kevinlocke.name
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Based on available information this uses the singletouch irtouch
protocol. This is tested and confirmed to be fully functional on
the BonXeon TP hardware I have.
Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
Link: https://lore.kernel.org/r/20200413184217.55700-1-james.hilliard1@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This patch makes use of cros_ec_cmd_xfer_status() instead of
cros_ec_cmd_xfer(). In this case there is no advantage of doing this
apart from that we want to make cros_ec_cmd_xfer() a private function
for the EC protocol and let people only use the
cros_ec_cmd_xfer_status() to return Linux standard error codes.
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Link: https://lore.kernel.org/r/20200414210434.1534982-1-enric.balletbo@collabora.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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MMS345L is another first generation touch screen from Melfas,
which uses the same registers as MMS152.
However, using I2C_M_NOSTART for it causes errors when reading:
i2c i2c-0: sendbytes: NAK bailout.
mms114 0-0048: __mms114_read_reg: i2c transfer failed (-5)
The driver works fine as soon as I2C_M_NOSTART is removed.
Reviewed-by: Andi Shyti <andi@etezian.org>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20200405170904.61512-1-stephan@gerhold.net
[dtor: removed separate mms345l handling, made everyone use standard
transfer mode, propagated the 10bit addressing flag to the read part of the
transfer as well.]
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Elan uses the least significant bit of byte 33 to signal the type of
contact (finger versus palm). The default value is 1 for all firmwares,
which is reported as MT_TOOL_FINGER. If firmware supports palm detection,
the bit will change to 0 and the driver will report such contact as
MT_TOOL_PALM.
Signed-off-by: Johnny Chuang <johnny.chuang@emc.com.tw>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Link: https://lore.kernel.org/r/1585551756-29066-1-git-send-email-johnny.chuang.emc@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Prepare input updates for 5.7 merge window.
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This patch adds support for the Azoteq IQS269A capacitive touch
controller.
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Link: https://lore.kernel.org/r/1588352982-5117-2-git-send-email-jeff@labundy.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Use devm_add_action_or_reset() to handle all cleanups of failure in
.probe and .remove, then .remove callback can be dropped.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Link: https://lore.kernel.org/r/1584082751-17047-1-git-send-email-Anson.Huang@nxp.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The address referenced by this driver is within the Qualcomm Clock
namespace so let's drop the msm-vibrator bindings so that a more generic
solution can be used instead. No one is currently using driver so this
won't affect any users.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Link: https://lore.kernel.org/r/20200513013140.69935-3-masneyb@onstation.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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There is an non-touch case by non-calibration after update firmware.
Elan could know calibrate or not by calibration count.
The value of '0xffff' means we didn't calibrate after update firmware.
If calibrate success, it will plus one and change to '0x0000'.
Signed-off-by: Johnny Chuang <johnny.chuang@emc.com.tw>
Link: https://lore.kernel.org/r/1588754932-5902-1-git-send-email-johnny.chuang.emc@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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input_mt_report_slot_state() ignores "tool" argument when the slot is
closed, which has caused a bit of confusion. Let's introduce
input_mt_report_slot_inactive() to report inactive slot state.
Suggested-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
Link: https://lore.kernel.org/r/20200508055656.96389-2-jiada_wang@mentor.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Sync up with mainline to get device tree and other changes.
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
- a fix to generate proper timestamps on key autorepeat events that
were broken recently
- a fix for Synaptics driver to only activate reduced reporting mode
when explicitly requested
- a new keycode for "selective screenshot" function
- other assorted fixes
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: fix stale timestamp on key autorepeat events
Input: move the new KEY_SELECTIVE_SCREENSHOT keycode
Input: avoid BIT() macro usage in the serio.h UAPI header
Input: synaptics-rmi4 - set reduced reporting mode only when requested
Input: synaptics - enable RMI on HP Envy 13-ad105ng
Input: allocate keycode for "Selective Screenshot" key
Input: tm2-touchkey - add support for Coreriver TC360 variant
dt-bindings: input: add Coreriver TC360 binding
dt-bindings: vendor-prefixes: Add Coreriver vendor prefix
Input: raydium_i2c_ts - fix error codes in raydium_i2c_boot_trigger()
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We need to refresh timestamp when emitting key autorepeat events, otherwise
they will carry timestamp of the original key press event.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=206929
Fixes: 3b51c44bd693 ("Input: allow drivers specify timestamp for input events")
Cc: stable@vger.kernel.org
Reported-by: teika kazura <teika@gmx.com>
Tested-by: teika kazura <teika@gmx.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The previous patch "c5ccf2ad3d33 (Input: synaptics-rmi4 - switch to
reduced reporting mode)" enabled reduced reporting mode unintentionally
on some devices, if the firmware was configured with default Delta X/Y
threshold values. The result unintentionally degrade the performance of
some touchpads.
This patch checks to see that the driver is modifying the delta X/Y
thresholds before modifying the reporting mode.
Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Fixes: c5ccf2ad3d33 ("Input: synaptics-rmi4 - switch to reduced reporting mode")
Link: https://lore.kernel.org/r/20200312005549.29922-1-aduggan@synaptics.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This laptop (and perhaps other variants of the same model) reports an
SMBus-capable Synaptics touchpad. Everything (including suspend and
resume) works fine when RMI is enabled via the kernel command line, so
let's add it to the whitelist.
Signed-off-by: Yussuf Khalil <dev@pp3345.net>
Link: https://lore.kernel.org/r/20200307213508.267187-1-dev@pp3345.net
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The Coreriver TouchCore 360 is like the midas board touchkey, but it is
using a fixed regulator.
Signed-off-by: Nick Reitemeyer <nick.reitemeyer@web.de>
Link: https://lore.kernel.org/r/20200121141525.3404-3-nick.reitemeyer@web.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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These functions are supposed to return negative error codes but instead
it returns true on failure and false on success. The error codes are
eventually propagated back to user space.
Fixes: 48a2b783483b ("Input: add Raydium I2C touchscreen driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20200303101306.4potflz7na2nn3od@kili.mountain
Cc: stable@vger.kernel.org
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 updates from Dmitry Torokhov:
- a few drivers have been updated to use flexible-array syntax instead
of GCC extension
- ili210x touchscreen driver now supports the 2120 protocol flavor
- a couple more of Synaptics devices have been switched over to RMI4
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: cyapa - replace zero-length array with flexible-array member
Input: tca6416-keypad - replace zero-length array with flexible-array member
Input: gpio_keys_polled - replace zero-length array with flexible-array member
Input: synaptics - remove the LEN0049 dmi id from topbuttonpad list
Input: synaptics - enable SMBus on ThinkPad L470
Input: synaptics - switch T470s to RMI4 by default
Input: gpio_keys - replace zero-length array with flexible-array member
Input: goldfish_events - replace zero-length array with flexible-array member
Input: psmouse - switch to using i2c_new_scanned_device()
Input: ili210x - add ili2120 support
Input: ili210x - fix return value of is_visible function
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The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Link: https://lore.kernel.org/r/20200214172132.GA28389@embeddedor
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Link: https://lore.kernel.org/r/20200214172022.GA27490@embeddedor
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Link: https://lore.kernel.org/r/20200214171907.GA26588@embeddedor
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The Yoga 11e is using LEN0049, but it doesn't have a trackstick.
Thus, there is no need to create a software top buttons row.
However, it seems that the device works under SMBus, so keep it as part
of the smbus_pnp_ids.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20200115013023.9710-1-benjamin.tissoires@redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Add touchpad LEN2044 to the list, as it is capable of working with
psmouse.synaptics_intertouch=1
Signed-off-by: Gaurav Agrawal <agrawalgaurav@gnome.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/CADdtggVzVJq5gGNmFhKSz2MBwjTpdN5YVOdr4D3Hkkv=KZRc9g@mail.gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This supports RMI4 and everything seems to work, including the touchpad
buttons. So, let's enable this by default.
Signed-off-by: Lyude Paul <lyude@redhat.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20200204194322.112638-1-lyude@redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Link: https://lore.kernel.org/r/20200213002600.GA31916@embeddedor.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Link: https://lore.kernel.org/r/20200213002430.GA31056@embeddedor.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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