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There is no use for the firmware interface after getting the touch
buffer address, so release it.
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
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Prepare input updates for 5.14 merge window.
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Even though we validate user-provided inputs we then traverse past
validated data when applying the new map. The issue was originally
discovered by Murray McAllister with this simple POC (if the following
is executed by an unprivileged user it will instantly panic the system):
int main(void) {
int fd, ret;
unsigned int buffer[10000];
fd = open("/dev/input/js0", O_RDONLY);
if (fd == -1)
printf("Error opening file\n");
ret = ioctl(fd, JSIOCSBTNMAP & ~IOCSIZE_MASK, &buffer);
printf("%d\n", ret);
}
The solution is to traverse internal buffer which is guaranteed to only
contain valid date when constructing the map.
Fixes: 182d679b2298 ("Input: joydev - prevent potential read overflow in ioctl")
Fixes: 999b874f4aa3 ("Input: joydev - validate axis/button maps before clobbering current ones")
Reported-by: Murray McAllister <murray.mcallister@gmail.com>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Alexander Larkin <avlarkin82@gmail.com>
Link: https://lore.kernel.org/r/20210620120030.1513655-1-avlarkin82@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Inside function hideep_nvm_unlock(), variable "unmask_code" could
be uninitialized if hideep_pgm_r_reg() returns error, however, it
is used in the later if statement after an "and" operation, which
is potentially unsafe.
Signed-off-by: Yizhuo <yzhai003@ucr.edu>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Use kobj_to_dev() instead of container_of()
Generated by: scripts/coccinelle/api/kobj_to_dev.cocci
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20210607122722.36736-1-yuehaibing@huawei.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Use kobj_to_dev() instead of container_of()
Generated by: scripts/coccinelle/api/kobj_to_dev.cocci
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20210607122653.33784-1-yuehaibing@huawei.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Use kobj_to_dev() instead of container_of()
Generated by: scripts/coccinelle/api/kobj_to_dev.cocci
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20210607122451.36708-1-yuehaibing@huawei.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Use kobj_to_dev() instead of container_of()
Generated by: scripts/coccinelle/api/kobj_to_dev.cocci
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20210607122533.10608-1-yuehaibing@huawei.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Use kobj_to_dev() API instead of container_of().
Signed-off-by: zhouchuangao <zhouchuangao@vivo.com>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/1624025283-56360-1-git-send-email-zhouchuangao@vivo.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This trivial patch fixes two spelling typos in i8042.c:
- 'i8042_unlock_ship()' to 'i8042_unlock_chip()'
- 'i8042_controller init' to 'i8042_controller_init'
Signed-off-by: Tyson Moore <tyson@tyson.me>
Link: https://lore.kernel.org/r/20210612060753.28968-1-tyson@tyson.me
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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A simple analog joystick built on Low Power ATtiny85 Microcontroller.
Directional movements are measured with two 10 kΩ potentiometers
connected with a gimbal mechanism that separates the horizontal and
vertical movements. This joystick also has a select button that is actuated
when the joystick is pressed down.
Input events polled over the I2C bus.
Product page:
https://www.sparkfun.com/products/15168
Firmware and hardware sources:
https://github.com/sparkfun/Qwiic_Joystick
Tested on RPi4B and O4-iMX-NANO boards.
Signed-off-by: Oleh Kravchenko <oleg@kaa.org.ua>
Reviewed-by: Jeff LaBundy <jeff@labundy.com>
Link: https://lore.kernel.org/r/20210608223130.16830-2-oleg@kaa.org.ua
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Instead of legacy gpio API let's use newer gpiod API. This also allows us
to get rid of platform data.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210603043726.3793876-7-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This simplifies error handling paths and allows to get rid of
cy8ctmg110_remove() method.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210603043726.3793876-6-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Switch to using be16_to_cpup() instead of shifting and combining data by
hand.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210603043726.3793876-5-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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I2C core already configures interrupt as wakeup source when device is
registered using I2C_CLIENT_WAKE flag, so let's rely on it instead of
configuring it ourselves.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210603043726.3793876-4-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Let platform specify whether the controller should be a wakeup source
by registering as I2C_CLIENT_WAKE.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210603043726.3793876-3-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Rely on the platform to set up interrupt polarity/type properly instead
of hard-coding falling edge.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210603043726.3793876-2-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Instead of using platform data to specify GPIO that is used as interrupt
source, rely on the platform and I2C core to set it up properly.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210603043726.3793876-1-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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In the case where st->ch_map[GRTS_CH_PRESSURE] < GRTS_MAX_CHANNELS is false
and also st->ch_map[GRTS_CH_Z1] < GRTS_MAX_CHANNELS is false the variable
press is not initialized and contains garbage. In this situation
st->pressure is also false, so we do not actually use press value, but
it is impossible for the compiler to realize this, and it emits
"uninitialized variable" warning. Fix this by initializing press
to 0 and allows us to also remove an else clause that sets press to 0.
Addresses-Coverity: ("Uninitialized scalar variable")
Fixes: 60b7db914ddd ("Input: resistive-adc-touch - rework mapping of channels")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20210603220809.155118-1-colin.king@canonical.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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On Qualcomm Technologies, Inc. PMIC PMK8350, the PON peripheral
is split into two peripherals: PON_HLOS and PON_PBS. The
application processor only has write access to PON_HLOS which
limits it to only receiving PON interrupts.
Add support for the PMK8350 PON_HLOS peripheral so that its
KPDPWR_N and RESIN_N interrupts can be used to detect key
presses.
Signed-off-by: David Collins <collinsd@codeaurora.org>
Signed-off-by: satya priya <skakit@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1620630064-16354-2-git-send-email-skakit@codeaurora.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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At the moment, the edt-ft5x06 driver can control a single regulator
("vcc"). However, some FocalTech touch controllers have an additional
IOVCC pin that should be supplied with the digital I/O voltage.
The I/O voltage might be provided by another regulator that should also
be kept on. Otherwise, the touchscreen can randomly stop functioning if
the regulator is turned off because no other components still require it.
Implement (optional) support for also enabling an "iovcc-supply".
The datasheet specifies a delay of ~ 10us before enabling VDD/VCC
after IOVCC is enabled, so make sure to enable IOVCC first.
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20210510193108.50178-2-stephan@gerhold.net
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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There is nothing in include/linux/input/cyttsp.h that might be of interes
to the kernel at large, so let's move this information into the driver
code and remove the header.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210531052307.1433979-2-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Instead of iterating over channels establish and use channel map to
retrieve data. As a side effect this will silence "uninitialized variable"
warnings.
Tested-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://lore.kernel.org/r/YLXR2brkc4H54xtK@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The driver is actually OF independent and doesn't need anything from OF (*).
Replace OF headers with mod_devicetable.h and property.h.
*) use of of_match_ptr() is actually wrong here, since it may provoke
a compiler to warn about unused variable.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210528151113.85943-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Validation script is not happy:
resistive-adc-touch.c:53: warning: Function parameter or member 'x_plate_ohms' not described in 'grts_state'
resistive-adc-touch.c:53: warning: Function parameter or member 'ch' not described in 'grts_state'
Describe parameters in kernel doc to make it happy.
Fixes: fb082cd59afa ("Input: resistive-adc-touch - add support for z1 and z2 channels")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210528151113.85943-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Instead of forcing interrupt trigger to be "falling edge" let's rely on the
platform to set it up according to how it is set up on a given board based
on data in device tree or ACPI tables.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/YK7iO96g+7yIC0l1@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The CYTTSP TMA340 chips have two supplies: VCPIN and
VDD for analog and digital voltage respectively.
Add some minimal code to obtain and enable these
regulators if need be.
Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210526230352.1433537-3-linus.walleij@linaro.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The driver (both SPI and I2C interface) should probe from the compatible
strings, cypress,cy8ctma340 etc when using device tree, not as now, where
it is probing implicitly from the I2C/SPI node name "cypress,cyttsp-i2c"
etc.
Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210526230352.1433537-2-linus.walleij@linaro.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This patch adds support for the z1 and z2 channels. These are used to
calculate the applied pressure. As there is no common order of the
individual channels of a resistive touch ADC, support for
io-channel-names is added (although the DT bindings stated the driver
already supports these).
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20210525054634.9134-5-o.rempel@pengutronix.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Sync up with mainline to get the latest device tree bindings and kernel
APIs.
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
"Just a few driver fixes here"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: elants_i2c - drop zero-checking of ABS_MT_TOUCH_MAJOR resolution
Input: elants_i2c - fix division by zero if firmware reports zero phys size
Input: nspire-keypad - enable interrupts only when opened
Input: i8042 - fix Pegatron C15B ID entry
Input: n64joy - fix return value check in n64joy_probe()
Input: s6sy761 - fix coordinate read bit shift
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Unnecessary spaces have been replaced with tab space. This is done to
maintain code uniformity.
Signed-off-by: Shubhankar Kuranagatti <shubhankarvk@gmail.com>
Link: https://lore.kernel.org/r/20210428091050.ryr7kxlxre7uhye4@kewl-virtual-machine
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This is a left-over from commit 1a59d1b8e05e ("treewide: Replace GPLv2
boilerplate/reference with SPDX - rule 156")
Axe an empty and useless comment block.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/fda981546203427a0ac86ef47f231239ad18ecfe.1618520227.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Return error code -EINVAL rather than '0' when the combo devices are not
supported.
Fixes: fa71c605c2bb ("Input: combine hil_kbd and hil_ptr drivers")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20210515030053.6824-1-thunder.leizhen@huawei.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Now that we get rid of the usage of id argument at probe again, let's
switch to the new i2c probe method; this will avoid for people
misusing the possibly unassigned id pointer again.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20210528071024.26450-2-tiwai@suse.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The recent change in elants_i2c driver to support more chips
introduced a regression leading to Oops at probing. The driver reads
id->driver_data, but the id may be NULL depending on the device type
the driver gets bound.
Replace the driver data extraction with the device_get_match_data()
helper, and define the driver data in OF table, too.
Fixes: 9517b95bdc46 ("Input: elants_i2c - add support for eKTF3624")
BugLink: https://bugzilla.suse.com/show_bug.cgi?id=1186454
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210528071024.26450-1-tiwai@suse.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Add "Select" button input capability and input event mapping for
Microsoft Xbox One controller. From product site this is also referred as
"Share" button.
Signed-off-by: Chris Ye <lzye@google.com>
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Link: https://lore.kernel.org/r/20210414021201.2462114-1-lzye@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The direction of the pipe argument must match the request-type direction
bit or control requests may fail depending on the host-controller-driver
implementation.
Fix the four control requests which erroneously used usb_rcvctrlpipe().
Fixes: 1d3e20236d7a ("[PATCH] USB: usbtouchscreen: unified USB touchscreen driver")
Fixes: 24ced062a296 ("usbtouchscreen: add support for DMC TSC-10/25 devices")
Fixes: 9e3b25837a20 ("Input: usbtouchscreen - add support for e2i touchscreen controller")
Signed-off-by: Johan Hovold <johan@kernel.org>
Cc: stable@vger.kernel.org # 2.6.17
Link: https://lore.kernel.org/r/20210524092048.4443-1-johan@kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The Amazon Luna controller (product name "Amazon Game Controller") behaves
like an Xbox 360 controller when connected over USB.
Signed-off-by: Matt Reynolds <mattreynolds@chromium.org>
Reviewed-by: Harry Cutts <hcutts@chromium.org>
Link: https://lore.kernel.org/r/20210429103548.1.If5f9a44cb81e25b9350f7c6c0b3c88b4ecd81166@changeid
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This adds the negation needed for proper finger detection on Ilitek
ili2107/ili210x. This fixes polling issues (on Amazon Kindle Fire)
caused by returning false for the cooresponding finger on the touchscreen.
Signed-off-by: Hansem Ro <hansemro@outlook.com>
Fixes: e3559442afd2a ("ili210x - rework the touchscreen sample processing")
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Prepare input updates for 5.13 merge window.
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This patch adds support for Hycon HY46XX.
Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Link: https://lore.kernel.org/r/20210413144446.2277817-4-giulio.benetti@benettiengineering.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This device is certainly a very simple touchscreen so
we set INPUT_MT_DIRECT.
Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210408131153.3446138-9-linus.walleij@linaro.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The driver is certainly reporting pressure in cyttsp_report_tchdata()
with input_report_abs(input, ABS_MT_TOUCH_MAJOR, tch->z); so we should
also advertise this capability.
Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210408131153.3446138-8-linus.walleij@linaro.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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When I test to use the CY8CTMA340 with PostmarketOS I don't have any
problem whatsoever in dropping this phys path, it finds and uses the
touchscreen just as well. I suppose it is because userspace is using
modern input libraries.
I challenge the maintainers to point out a valid and still used
userspace that actually need this. I say we drop it.
Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210408131153.3446138-7-linus.walleij@linaro.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The data sheet for CY8CTMA340 specifies that the reset pulse shall be at
least 1 ms. Specify 1-2 ms with usleep_range() to cut some slack for the
scheduler.
Curiously the datasheet does not specify how long we have to wait after a
hard reset until the chip is up, but I have found a vendor tree (Samsung
GT-S7710) that has code for this touch screen and there this is set to 5
ms so I use this with the same 1 ms fuzz.
Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210408131153.3446138-6-linus.walleij@linaro.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Provide a proper error message when attempting to exit boot loader mode
and failing, which is something that happened to me.
Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210408131153.3446138-5-linus.walleij@linaro.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Fix the following gcc warning:
drivers/input/serio/apbps2.c:106:16: warning: variable ‘tmp’ set but not
used [-Wunused-but-set-variable].
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Link: https://lore.kernel.org/r/1617958859-64707-1-git-send-email-jiapeng.chong@linux.alibaba.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The Melfas MMS136 is similar to the other MMS variants but
has event packages of 6 bytes rather than 8 as the others.
The define is named FINGER_EVENT_SZ in the vendor drivers
so I renamed it from MMS*_PACKET_SZ to MMS*_EVENT_SZ.
After this patch, the touchscreen on the Samsung GT-I8530
works fine with PostmarketOS.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210404232619.3092682-1-linus.walleij@linaro.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Add support for ILITEK Lego series of touch devices.
Lego series includes ILITEK 213X/23XX/25XX.
Tested/passed with evaluation board with ILI2520/2322 IC.
Signed-off-by: Joe Hung <joe_hung@ilitek.com>
Link: https://lore.kernel.org/r/20210324122601.125873-2-joe_hung@ilitek.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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