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The Samsung touchkey controllers are often used with external pull-up
for the interrupt line and the I2C lines, so we might need to enable
a regulator to bring the lines into usable state. Otherwise, this might
cause spurious interrupts and reading from I2C will fail.
Document support for a "vddio-supply" that is enabled by the tm2-touchkey
driver so that the regulator gets enabled when needed.
Signed-off-by: Stephan Gerhold <[email protected]>
Reviewed-by: Linus Walleij <[email protected]>
Reviewed-by: Rob Herring <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Convert the device tree bindings for tm2-touchkey to the YAML format.
While we're at it, clarify the descriptions a bit to make it clear that
this driver can be used for many different MCUs that all implement
a similar I2C protocol. Depending on the MCU the voltage requirements
may be different, on some devices the controller uses 2.2V, 2.8V or
even 3.3V for vcc-supply instead of 1.8V.
Signed-off-by: Stephan Gerhold <[email protected]>
Reviewed-by: Linus Walleij <[email protected]>
Reviewed-by: Rob Herring <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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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 <[email protected]>
Link: https://lore.kernel.org/linux-input/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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This adds support for the power button attached to the Embedded Controller
on a Dell Wyse 3020 "Ariel" board.
The Embedded Controller's SPI interface is actually capable sending and
receiving the PS/2 keyboard and mouse protocol data, which looks like
a good fit for a serio driver. Howerver, I don't know of any machines where
this is actually used.
My board only has a single power button and no way to connect an actual
keyboard or a mouse. Using the atkbd driver with serio would be an overkill
and would be inconvenient for the userspace. Therefore this driver
registers an input device that is only capable of reporting the power
button presses and releases.
Signed-off-by: Lubomir Rintel <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Add binding document for the Dell Wyse 3020 a.k.a. "Ariel" Power Button.
Signed-off-by: Lubomir Rintel <[email protected]>
Reviewed-by: Rob Herring <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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The driver has its own HID descriptor parsing code, that had and still
has several issues discovered by syzbot and other tools. Ideally we
should move the driver over to the HID subsystem, so that it uses proven
parsing code. However the devices in question are EOL, and GTCO is not
willing to extend resources for that, so let's simply remove the driver.
Note that our HID support has greatly improved over the last 10 years,
we may also consider reverting 6f8d9e26e7de ("hid-core.c: Adds all GTCO
CalComp Digitizers and InterWrite School Products to blacklist") and see
if GTCO devices actually work with normal HID drivers.
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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There is a spelling mistake in the Kconfig help text. Fix it by replacing
"theses" with "these".
Signed-off-by: Colin Ian King <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Document inhibiting input devices and its relation to being
a wakeup source.
Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
Reviewed-by: Hans de Goede <[email protected]>
Reviewed-by: Randy Dunlap <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Userspace might want to implement a policy to temporarily disregard input
from certain devices, including not treating them as wakeup sources.
An example use case is a laptop, whose keyboard can be folded under the
screen to create tablet-like experience. The user then must hold the laptop
in such a way that it is difficult to avoid pressing the keyboard keys. It
is therefore desirable to temporarily disregard input from the keyboard,
until it is folded back. This obviously is a policy which should be kept
out of the kernel, but the kernel must provide suitable means to implement
such a policy.
This patch adds a sysfs interface for exactly this purpose.
To implement the said interface it adds an "inhibited" property to struct
input_dev, and effectively creates four states a device can be in: closed
uninhibited, closed inhibited, open uninhibited, open inhibited. It also
defers calling driver's ->open() and ->close() to until they are actually
needed, e.g. it makes no sense to prepare the underlying device for
generating events (->open()) if the device is inhibited.
uninhibit
closed <------------ closed
uninhibited ------------> inhibited
| ^ inhibit | ^
1st | | 1st | |
open | | open | |
| | | |
| | last | | last
| | close | | close
v | uninhibit v |
open <------------ open
uninhibited ------------> inhibited
The top inhibit/uninhibit transition happens when users == 0.
The bottom inhibit/uninhibit transition happens when users > 0.
The left open/close transition happens when !inhibited.
The right open/close transition happens when inhibited.
Due to all transitions being serialized with dev->mutex, it is impossible
to have "diagonal" transitions between closed uninhibited and open
inhibited or between open uninhibited and closed inhibited.
No new callbacks are added to drivers, because their open() and close()
serve exactly the purpose to tell the driver to start/stop providing
events to the input core. Consequently, open() and close() - if provided
- are called in both inhibit and uninhibit paths.
Signed-off-by: Patrik Fimml <[email protected]>
Co-developed-by: Andrzej Pietrasiewicz <[email protected]>
Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Use the newly added helper in relevant input drivers.
Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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A helper function for drivers to decide if the device is used or not.
A lockdep check is introduced as inspecting ->users should be done under
input device's mutex.
Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Marking main interrupt as wakeup interrupt in probe allows us to drop
custom suspend/resume methods whose only purpose was to configure interrupt
for waking up the system.
Signed-off-by: Dmitry Torokhov <[email protected]>
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Now that normal input devices support polling mode, and all users of
input_polled_dev API have been converted, we can remove it.
Signed-off-by: Dmitry Torokhov <[email protected]>
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In preparation to enable -Wimplicit-fallthrough for Clang, fix a
warning by replacing a /* Fall through */ comment with the new
pseudo-keyword macro fallthrough.
Notice that Clang doesn't recognize /* Fall through */ comments as
implicit fall-through markings.
Signed-off-by: Gustavo A. R. Silva <[email protected]>
Link: https://lore.kernel.org/r/d2944854e3e118b837755abf4cbdb497662001b7.1605896060.git.gustavoars@kernel.org
Signed-off-by: Dmitry Torokhov <[email protected]>
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In preparation to enable -Wimplicit-fallthrough for Clang, fix a warning
by explicitly adding a break statement instead of just letting the code
fall through to the next case.
Signed-off-by: Gustavo A. R. Silva <[email protected]>
Link: https://lore.kernel.org/r/4b659e3e65f2fa3c8bb7ed153e2016c3fb395bbc.1605896059.git.gustavoars@kernel.org
Signed-off-by: Dmitry Torokhov <[email protected]>
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In omap4_keypad_probe, the patch fix several bugs.
1) pm_runtime_get_sync will increment pm usage counter even it
failed. Forgetting to pm_runtime_put_noidle will result in
reference leak.
2) In err_unmap, forget to disable runtime of device,
pm_runtime_enable will increase power disable depth. Thus a
pairing decrement is needed on the error handling path to keep
it balanced.
3) In err_pm_disable, it will call pm_runtime_put_sync twice not
one time.
To fix this we factor out code reading revision and disabling touchpad, and
drop PM reference once we are done talking to the device.
Fixes: f77621cc640a7 ("Input: omap-keypad - dynamically handle register offsets")
Fixes: 5ad567ffbaf20 ("Input: omap4-keypad - wire up runtime PM handling")
Signed-off-by: Zhang Qilong <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Fixes the following W=1 kernel build warning(s):
drivers/input/mouse/vmmouse.c:99: warning: Function parameter or member 'cmd' not described in 'VMMOUSE_CMD'
drivers/input/mouse/vmmouse.c:99: warning: Function parameter or member 'in1' not described in 'VMMOUSE_CMD'
drivers/input/mouse/vmmouse.c:99: warning: Function parameter or member 'out1' not described in 'VMMOUSE_CMD'
drivers/input/mouse/vmmouse.c:99: warning: Function parameter or member 'out2' not described in 'VMMOUSE_CMD'
drivers/input/mouse/vmmouse.c:99: warning: Function parameter or member 'out3' not described in 'VMMOUSE_CMD'
drivers/input/mouse/vmmouse.c:99: warning: Function parameter or member 'out4' not described in 'VMMOUSE_CMD'
Signed-off-by: Lee Jones <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Fixes the following W=1 kernel build warning(s):
drivers/input/keyboard/applespi.c:306: warning: Function parameter or member 'keyboard' not described in 'message'
drivers/input/keyboard/applespi.c:306: warning: Function parameter or member 'touchpad' not described in 'message'
drivers/input/keyboard/applespi.c:306: warning: Function parameter or member 'tp_info' not described in 'message'
drivers/input/keyboard/applespi.c:306: warning: Function parameter or member 'tp_info_command' not described in 'message'
drivers/input/keyboard/applespi.c:306: warning: Function parameter or member 'init_mt_command' not described in 'message'
drivers/input/keyboard/applespi.c:306: warning: Function parameter or member 'capsl_command' not described in 'message'
drivers/input/keyboard/applespi.c:306: warning: Function parameter or member 'bl_command' not described in 'message'
drivers/input/keyboard/applespi.c:306: warning: Function parameter or member 'data' not described in 'message'
Signed-off-by: Lee Jones <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Fixes the following W=1 kernel build warning(s):
drivers/input/touchscreen/goodix.c:1168: warning: Function parameter or member 'ctx' not described in 'goodix_config_cb'
drivers/input/touchscreen/goodix.c:1168: warning: Excess function parameter 'ts' description in 'goodix_config_cb'
Signed-off-by: Lee Jones <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Fixes the following W=1 kernel build warning(s):
drivers/input/mouse/synaptics.c:1781: warning: Function parameter or member 'psmouse' not described in 'synaptics_setup_intertouch'
drivers/input/mouse/synaptics.c:1781: warning: Function parameter or member 'info' not described in 'synaptics_setup_intertouch'
drivers/input/mouse/synaptics.c:1781: warning: Function parameter or member 'leave_breadcrumbs' not described in 'synaptics_setup_intertouch'
Signed-off-by: Lee Jones <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Fixes the following W=1 kernel build warning(s):
drivers/input/touchscreen/wm97xx-core.c:204: warning: Function parameter or member 'status' not described in 'wm97xx_set_gpio'
Signed-off-by: Lee Jones <[email protected]>
Acked-by: Richard Fitzgerald <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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header
Fixes the following W=1 kernel build warning(s):
drivers/input/touchscreen/surface3_spi.c: In function ‘surface3_spi_process_touch’:
drivers/input/touchscreen/surface3_spi.c:97:6: warning: variable ‘timestamp’ set but not used [-Wunused-but-set-variable]
drivers/input/touchscreen/surface3_spi.c:225: warning: Function parameter or member 'data' not described in 'surface3_spi_get_gpio_config'
drivers/input/touchscreen/surface3_spi.c:225: warning: Excess function parameter 'ts' description in 'surface3_spi_get_gpio_config'
Signed-off-by: Lee Jones <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Fixes the following W=1 kernel build warning(s):
drivers/input/misc/wm831x-on.c:30: warning: cannot understand function prototype: 'struct wm831x_on '
Signed-off-by: Lee Jones <[email protected]>
Acked-by: Richard Fitzgerald <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Fixes the following W=1 kernel build warning(s):
drivers/input/touchscreen/goodix.c:569: warning: Function parameter or member 'len' not described in 'goodix_check_cfg'
drivers/input/touchscreen/goodix.c:587: warning: Function parameter or member 'len' not described in 'goodix_send_cfg'
drivers/input/touchscreen/goodix.c:1165: warning: Function parameter or member 'cfg' not described in 'goodix_config_cb'
drivers/input/touchscreen/goodix.c:1165: warning: Function parameter or member 'ctx' not described in 'goodix_config_cb'
drivers/input/touchscreen/goodix.c:1165: warning: Excess function parameter 'ts' description in 'goodix_config_cb'
Signed-off-by: Lee Jones <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Fixes the following W=1 kernel build warning(s):
drivers/input/misc/mc13783-pwrbutton.c:32: warning: cannot understand function prototype: 'struct mc13783_pwrb '
Signed-off-by: Lee Jones <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Fixes the following W=1 kernel build warning(s):
drivers/input/joystick/xpad.c:1361: warning: Function parameter or member 'xpad' not described in 'xpad_send_led_command'
drivers/input/joystick/xpad.c:1361: warning: Function parameter or member 'command' not described in 'xpad_send_led_command'
Signed-off-by: Lee Jones <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Let's use BIT() macro instead of explicitly shifting '1'.
Acked-by: Alexandru Ardelean <[email protected]>
Link: https://lore.kernel.org/r/20201119072440.GA116840@dtor-ws
Signed-off-by: Dmitry Torokhov <[email protected]>
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This improves compile coverage of the code; unused code will be dropped by
the linker.
Acked-by: Alexandru Ardelean <[email protected]>
Link: https://lore.kernel.org/r/20201119072418.GA114677@dtor-ws
Signed-off-by: Dmitry Torokhov <[email protected]>
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The driver clears the general configuration register during the remove()
hook. This should also be done in case the driver exits on error.
This change move the clear of that register to the
devm_add_action_or_reset() hook.
Signed-off-by: Alexandru Ardelean <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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This change makes use of the devm_gpiochip_add_data() function. With this
the gpiochip_remove() function can be removed, and the
adp5589_gpio_remove() function as well.
The kpad->export_gpio variable is also redundant now, and has been removed.
Signed-off-by: Alexandru Ardelean <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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This is currently just dead code. It's from around a time when
platform-data was used, and a board could hook it's own special callback
for setup/teardown, and a private object (via 'context').
This change removes it, as there are no more users in mainline for this.
Signed-off-by: Alexandru Ardelean <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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This change makes use of the devm_input_allocate_device() function, which
gets rid of the input_free_device() and input_unregister_device() calls.
When a device is allocated via input_allocate_device(), the
input_register_device() call will also be device-managed, so there is no
longer need to manually call unregister.
Also, the irq is allocated with the devm_request_threaded_irq(), so with
these two changes, the adp5589_keypad_remove() function is no longer
needed.
This cleans up the error & exit paths.
Signed-off-by: Alexandru Ardelean <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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This removes the need to manually free the kpad object and cleans up some
exit/error paths. The error path cleanup should reduce the risk of any
memory leaks with this object.
Signed-off-by: Alexandru Ardelean <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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This adds the code for the Atmel touchscreens such as mXT224 to obtain
power regulators for the supply voltages AVDD and VDD. On mobile phones
such as Samsung GT-I8190 (Golden) this is needed to explicitly bring power
online.
We just enable the regulators at probe() and disable them at remove()
or in the error path for now.
As regulators are naturally stubbed if not available, this should have no
impact on existing systems.
Signed-off-by: Linus Walleij <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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This converts the Armel MXT touchscreen bindings to YAML format and
extends them with the following two properties:
- vdda-supply: the optional analog supply voltage
- vdd-supply: the optional digital supply voltage
Tested the schema with all in-tree users and they verify fine.
Signed-off-by: Linus Walleij <[email protected]>
Reviewed-by: Rob Herring <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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This driver uses GPIO descriptors to drive the touchscreen RESET line. In
the existing device trees this has in conflict with intution been flagged
as GPIO_ACTIVE_HIGH and the driver then applies the reverse action by
driving the line low (setting to 0) to enter reset state and driving the
line high (setting to 1) to get out of reset state.
The correct way to handle active low GPIO lines is to provide the
GPIO_ACTIVE_LOW in the device tree (thus properly describing the hardware)
and letting the GPIO framework invert the assertion (driving high) to a
low level and vice versa.
This is considered a bug since the device trees are incorrectly
mis-specifying the line as active high.
Fix the driver and all device trees specifying a reset line.
Signed-off-by: Linus Walleij <[email protected]>
Reviewed-by: Philippe Schenker <[email protected]>
Acked-by: Krzysztof Kozlowski <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Sync up with mainline to bring in the latest DTS files.
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The same clause as its use.
Fixes the following W=1 kernel build warning(s):
include/linux/input/elan-i2c-ids.h:26:36: warning: ‘elan_acpi_id’ defined but not used [-Wunused-const-variable=]
Signed-off-by: Lee Jones <[email protected]>
Link: https://lore.kernel.org/r/20201112104420.GG1997862@dell
Signed-off-by: Dmitry Torokhov <[email protected]>
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This is essentially a revert of:
3ac8bf077d0f ("[PATCH] ads7846: sparc32 warning fix")
By now enable_irq() and disable_irq() are properly defined in
linux/interrupt.h and we do not need to pull in architecture-specific
bits.
Signed-off-by: Dmitry Torokhov <[email protected]>
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req->sample[1] is not naturally aligned at word boundary, and therefore we
should use get_unaligned_be16() when accessing it.
Fixes: 3eac5c7e44f3 ("Input: ads7846 - extend the driver for ads7845 controller support")
Signed-off-by: Dmitry Torokhov <[email protected]>
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In some rare cases the 32 bit Rt value will overflow if z2 and x is max,
z1 is minimal value and x_plate_ohms is relatively high (for example 800
ohm). This would happen on some screen age with low pressure.
There are two possible fixes:
- make Rt 64bit
- reorder calculation to avoid overflow
The second variant seems to be preferable, since 64 bit calculation on
32 bit system is a bit more expensive.
Fixes: ffa458c1bd9b6f653008d450f337602f3d52a646 ("spi: ads7846 driver")
Co-developed-by: David Jander <[email protected]>
Signed-off-by: David Jander <[email protected]>
Signed-off-by: Oleksij Rempel <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Starting with 3eac5c7e44f3 ("Input: ads7846 - extend the driver for ads7845
controller support"), the ads7845 was partially converted to full duplex
mode.
Since it is not touchscreen controller specific, it is better to extend
this conversion to cover entire driver. This will reduce CPU load and make
driver more readable.
Signed-off-by: Oleksij Rempel <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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If touchscreen is released while busy reading HWMON device, the release
can be missed. The IRQ thread is not started because no touch is active
and BTN_TOUCH release event is never sent.
Fixes: f5a28a7d4858f94a ("Input: ads7846 - avoid pen up/down when reading hwmon")
Co-developed-by: Oleksij Rempel <[email protected]>
Signed-off-by: David Jander <[email protected]>
Signed-off-by: Oleksij Rempel <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Fixes the following W=1 kernel build warning(s):
drivers/input/touchscreen/imx6ul_tsc.c: In function ‘adc_irq_fn’:
drivers/input/touchscreen/imx6ul_tsc.c:307:6: warning: variable ‘value’ set but not used [-Wunused-but-set-variable]
Signed-off-by: Lee Jones <[email protected]>
Reviewed-by: Haibo Chen <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Fixes the following W=1 kernel build warning(s):
drivers/input/keyboard/samsung-keypad.c: In function ‘samsung_keypad_irq’:
drivers/input/keyboard/samsung-keypad.c:149:15: warning: variable ‘val’ set but not used [-Wunused-but-set-variable]
Signed-off-by: Lee Jones <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Hard-coding resolution for st1633 device was wrong. Some of LCDs like
YTS700TLBC-02-100C has assembled Sitronix st1633 touchcontroller too. But
the resolution is not 320x480 as was hard-coded.
Add new function which reads correct resolution directly from register.
Signed-off-by: Andrej Valek <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Fixes the kerneldoc warnings from building the driver with W=1.
Signed-off-by: Lee Jones <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
[dtor: folded together several Lee's patches; added more descriptions]
Signed-off-by: Dmitry Torokhov <[email protected]>
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references it
Fixes the following W=1 kernel build warning(s):
In file included from drivers/input/touchscreen/cyttsp_i2c_common.c:24:
drivers/input/touchscreen/cyttsp4_core.h:236:27: warning: ‘cyttsp4_tch_abs_string’ defined but not used [-Wunused-const-variable=]
236 | static const char const cyttsp4_tch_abs_string[] = {
| ^~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/input/touchscreen/cyttsp4_i2c.c:17:
drivers/input/touchscreen/cyttsp4_core.h:236:27: warning: ‘cyttsp4_tch_abs_string’ defined but not used [-Wunused-const-variable=]
236 | static const char * const cyttsp4_tch_abs_string[] = {
| ^~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/input/touchscreen/cyttsp4_spi.c:17:
drivers/input/touchscreen/cyttsp4_core.h:236:27: warning: ‘cyttsp4_tch_abs_string’ defined but not used [-Wunused-const-variable=]
236 | static const char * const cyttsp4_tch_abs_string[] = {
| ^~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Lee Jones <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Fixes the following W=1 kernel build warning(s):
drivers/input/touchscreen/resistive-adc-touch.c:34: warning: cannot understand function prototype: 'struct grts_state '
Signed-off-by: Lee Jones <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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The location of the minus sign and the error code are
linked together for better human view.
Signed-off-by: Zhang Qilong <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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