The conversion to devm accidentally removed setting up of I2C client data
upon successful probe of the touchscreen. Let's move this setting into the
core, so we do not forger about it again.
Fixes: 381f688eee3d ("Input: ad7879 - use more devm interfaces")
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Now that %z is standartised in C99 there is no reason to support %Z.
Unlike %L it doesn't even make format strings smaller.
Use BUILD_BUG_ON in a couple ATM drivers.
In case anyone didn't notice lib/vsprintf.o is about half of SLUB which
is in my opinion is quite an achievement. Hopefully this patch inspires
someone else to trim vsprintf.c more.
Link: http://lkml.kernel.org/r/20170103230126.GA30170@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Using regmap this is no longer required.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Up until now only platforms using legacy platform data were able to switch
AUX/VBAT/GPIO pin in GPIO mode and use it as regular GPIO line. Let's
allow platforms using generic device properties to do the same.
Reviewed-by: Michael Hennerich <michael.hennerich@analog.com>
Tested-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
gpiochip_add now has a managed version, and we can remove sysfs attribute
group via devm_add_action_or_reset (at least until we have devm version of
sysfs_create_group). This allows us to get rid of ad7879_remove().
Reviewed-by: Michael Hennerich <michael.hennerich@analog.com>
Tested-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Instead of rolling our own infrastructure to provide uniform access to I2C
and SPI buses, let's switch to using regmap.
Reviewed-by: Michael Hennerich <michael.hennerich@analog.com>
Tested-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Previously, tsc2007 would report as ABS_PRESSURE:
0 for no pressure (resistance infinite)
high value for soft pressure (high resistance)
low value for firm pressure (lower resistance)
This does not matter for most applications (e.g. GUI, Menu, Scrolling etc.)
where the ABS_PRESSURE is ignored and only BTN_TOUCH is processed to detect
screen taps.
Only some special graphics applications read the pressure channel and they
will be mixed up by this non-monotonic relation.
So we fix it to become:
0 for no pressure (resistance infinite)
low value for soft pressure (high resistance)
high value for firm pressure (lower resistance)
While this patch changes the values reported to userspace, ABS_PRESSURE is
used rarely by userspace. Most software only relies on BTN_TOUCH (boolean),
which is not affected by this patch. Some graphics software makes use of
the interface and does not work correctly with the currently used inverted
behaviour.
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Reviewed-By: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Rename tsc2007_calculate_pressure to tsc2007_calculate_resistance because
that is what it does.
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The I2C core always reports a MODALIAS of the form i2c:<foo> even if the
device was registered via OF, this means that exporting the OF device ID
table device aliases in the module is not needed. But in order to change
how the core reports modaliases to user-space, it's better to export it.
Before this patch:
$ modinfo drivers/input/touchscreen/zet6223.ko | grep alias
alias: i2c:zet6223
After this patch:
$ modinfo drivers/input/touchscreen/zet6223.ko | grep alias
alias: of:N*T*Czeitec,zet6223C*
alias: of:N*T*Czeitec,zet6223
alias: i2c:zet6223
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The tsc2007 chip not only has a resistive touch screen controller but
also an external AUX adc imput which can be used for an ambient
light sensor, battery voltage monitoring or any general purpose.
Additionally it can measure the chip temperature.
This extension provides an iio interface for these adc channels.
Since it is not wasting much resources and is very straightforward,
we simply provide all other adc channels as optional iio interfaces
as weel. This can be used for debugging or special applications.
This patch also splits the tsc2007 driver in several source files:
tsc2007.h -- constants, structs and stubs
tsc2007_core.c -- functional parts of the original driver
tsc2007_iio.c -- the optional iio stuff
Makefile magic allows to conditionally link the iio stuff
if CONFIG_IIO=y or =m in a way that it works with
CONFIG_TOUCHSCREEN_TSC2007=m.
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Reviewed-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
1. check if chip is really present and don't succeed if it isn't.
2. if it succeeds, power down the chip until accessed
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Instead of supporting legacy platform data (of which we have no mainline
users) and OF-based properties, let's switch to generic device properties.
This will still allow legacy boards to use the driver (by defining property
sets and attaching them to the drivers) and will simplify probe and make
driver usable on ACPI-based systems as well.
Reviewed-By: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
In case of an optional regulator missing, regulator core will return
ERR_PTR(-ENOENT) and not NULL, so the check for missing regulator is
incorrect. Also, the regulator is not optional, it may simply be missing
from platform description, so let's use devm_regulator_get() and rely on
regulator core to give us dummy supply when real one is not available.
Fixes: d257f2980f ("Input: tsc2005 - convert to gpiod")
Acked-By: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To be prepared for SPI module loading using full compatible strings from
device tree, let's add OF module device table data.
Reviewed-By: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This is a basic driver for the Zeitec ZET6223 I2C touchscreen
controllers. The driver does not support firmware loading, which is not
required for all tablets which contain this chip.
Signed-off-by: Jelle van der Waa <jelle@vdwaa.nl>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Merge tag 'v4.10-rc5' into next
Sync up with mainline to bring up improvements in various subsystems.
Commit 6480af4915 ("power_supply: wm97xx_battery: use
power_supply_get_drvdata") made wm97xx platform data mandatory, although
it's still optional.
This patch fixes an oops during driver probe on one of my MIPS boards with
a wm9712.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Reviewed-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Since there is no call to dev_get_drvdata() or input_get_drvdata(),
the call to input_set_drvdata() is unnecessary and can be dropped.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Calling device_init_wakeup in the remove function is unnecessary since the
device is going away, and thus won't be able to cause any wakeups under any
circumstances. Besides, the driver cleanup code already handles the
necessary cleanup.
Similarly, disabling wakeup in the probe error path is unnecessary, as is
disabling wakeup in the probe function in the first place.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
If a function declares a variable to access a structure element,
use it consistently.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
There is no call to i2c_get_clientdata(), platform_get_drvdata(),
or dev_get_drvdata() in any of the drivers in this patch.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
There is no call to i2c_get_clientdata() or dev_get_drvdata().
Drop the unnecessary call to i2c_set_clientdata().
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Error messages after memory allocation failures are unnecessary and
can be dropped, especially give that they were emitted as dev_dbg() so
noone except person actively debugging the driver would see them.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
There is no call to i2c_get_clientdata() or dev_get_drvdata().
Drop the unnecessary call to i2c_set_clientdata().
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull input updates from Dmitry Torokhov:
"Small driver fixups"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: elants_i2c - avoid divide by 0 errors on bad touchscreen data
Input: adxl34x - make it enumerable in ACPI environment
Input: ALPS - fix TrackStick Y axis handling for SS5 hardware
Input: synaptics-rmi4 - fix F03 build error when serio is module
Input: xpad - use correct product id for x360w controllers
Input: synaptics_i2c - change msleep to usleep_range for small msecs
Input: i8042 - add Pegatron touchpad to noloop table
Input: joydev - remove unused linux/miscdevice.h include
The Moorestown support was removed by commit 1a8359e411 ("x86/mid: Remove
Intel Moorestown").
Remove this leftover.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
msleep(1~20) may not do what the caller intends, and will often sleep
longer (~20 ms actual sleep for any value given in the 1~20ms range). This
is not the desired behaviour for many cases like device resume time, device
suspend time, device enable time, retry logic, etc. Thus, change msleep to
usleep_range for precise wakeups.
Signed-off-by: Aniroop Mathur <a.mathur@samsung.com>
Acked-by: Simon Budig <simon.budig@kernelconcepts.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull input subsystem updates from Dmitry Torokhov:
- updated support for Synaptics RMI4 devices, including support for
SMBus controllers, firmware update support, sensor tuning, and PS/2
guest support
- ALPS driver now supports tracksticks on SS5 controllers
- i8042 now uses chassis info to skip selftest on Asus laptops as list
of individual models became too unwieldy
- miscellaneous fixes to other drivers
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (67 commits)
Input: imx6ul_tsc - generalize the averaging property
Input: drv260x - use generic device properties
Input: drv260x - use temporary for &client->dev
Input: drv260x - fix input device's parent assignment
Input: synaptics-rmi4 - add support for F34 V7 bootloader
Input: drv260x - fix initializing overdrive voltage
Input: ALPS - fix protcol -> protocol
Input: i8042 - comment #else/#endif of CONFIG_PNP
Input: lpc32xx-keys - fix invalid error handling of a requested irq
Input: synaptics-rmi4 - fix debug for sensor clip
Input: synaptics-rmi4 - store the attn data in the driver
Input: synaptics-rmi4 - allow to add attention data
Input: synaptics-rmi4 - f03 - grab data passed by transport device
Input: synaptics-rmi4 - add support for F03
Input: imx6ul_tsc - convert int to u32
Input: imx6ul_tsc - add mask when set REG_ADC_CFG
Input: synaptics-rmi4 - have only one struct platform data
Input: synaptics-rmi4 - remove EXPORT_SYMBOL_GPL for internal functions
Input: synaptics-rmi4 - remove mutex calls while updating the firmware
Input: drv2667 - fix misuse of regmap_update_bits
...
Make the avarage-samples property a general touchscreen property
rather than imx6ul device specific.
Signed-off-by: Guy Shapiro <guy.shapiro@mobi-wize.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The code uses of_property_read_u32 and expects positive values. However,
the values are stored in signed int variables. Additionally, the registers
values are also stored in signed variables without a good reason
(readl/writel expect u32).
The only time this caused a real bug was in the new average-samples
property, in which the property is numerically compared and implicitly
expected to be positive.
I believe it's better to change all the properties and registers to u32,
for consistency and warnings reduction.
Signed-off-by: Guy Shapiro <guy.shapiro@mobi-wize.com>
Reported-by: Bjørn Forsman <bjorn.forsman@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add mask of each function bits of REG_ADC_CFG, and clear these
function bits first, otherwise use '|=' operation may get the
wrong setting which depends on the original value of REG_ADC_CFG.
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Reviewed-by: Guy Shapiro <guy.shapiro@mobi-wize.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The i.MX6UL internal touchscreen controller contains an option to
average upon samples. This feature reduces noise from the produced
touch locations.
This patch adds sample averaging support to the imx6ul_tsc device
driver.
Signed-off-by: Guy Shapiro <guy.shapiro@mobi-wize.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
As the power supply framework provides a way to store and retrieve
private supply data, use it.
In the process, change the platform data for wm97xx_battery from a
container of a single struct wm97xx_batt_pdata to the direct point to wm97xx_batt_pdata.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Trivial fix to spelling mistake "failied" to "failed" in
dev_err message.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
On some tablets the touchscreen controller is powered by separate
regulators, add support for this.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
If the driver is built as a module, autoload won't work because the module
alias information is not filled. So user-space can't match the registered
device with the corresponding module.
Export the module alias information using the MODULE_DEVICE_TABLE() macro.
Before this patch:
$ modinfo drivers/input/touchscreen/fsl-imx25-tcq.ko | grep alias
After this patch:
$ modinfo drivers/input/touchscreen/fsl-imx25-tcq.ko | grep alias
alias: of:N*T*Cfsl,imx25-tcqC*
alias: of:N*T*Cfsl,imx25-tcq
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Use product id for firmware name to request compatible firmware.
Signed-off-by: Sangwon Jee <jeesw@melfas.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add product_id sysfs attribute and update protocol version to support it.
Signed-off-by: Sangwon Jee <jeesw@melfas.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull some more input subsystem updates from Dmitry Torokhov:
"An update to the ALPS driver to support the V8 protocol with
touchstick, a change for i8042 to skip selftest on many Asus laptops
which helps to keep their touchpads working after resume, and a couple
other driver fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: i8042 - skip selftest on ASUS laptops
Input: melfas_mip4 - add ic_name sysfs attribute
Input: melfas_mip4 - add maintainer information
Input: melfas_mip4 - add devicetree binding documentations
Input: elantech - add Fujitsu Lifebook E556 to force crc_enabled
Input: synaptics-rmi4 - fix error handling in I2C transport driver
Input: synaptics-rmi4 - fix error handling in SPI transport driver
Input: ALPS - add V8 protocol documentation
Input: ALPS - set DualPoint flag for 74 03 28 devices
Input: ALPS - allow touchsticks to report pressure
Input: ALPS - handle 0-pressure 1F events
Input: ALPS - add touchstick support for SS5 hardware
Input: elantech - force needed quirks on Fujitsu H760
Input: elantech - fix Lenovo version typo
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Merge tag 'v4.8' into next
Sync up with mainline to bring in I2C host notify changes and other
updates.
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Merge tag 'media/v4.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- Documentation improvements: conversion of all non-DocBook documents
to Sphinx and lots of fixes to the uAPI media book
- New PCI driver for Techwell TW5864 media grabber boards
- New SoC driver for ATMEL Image Sensor Controller
- Removal of some obsolete SoC drivers (s5p-tv driver and soc_camera
drivers)
- Addition of ST CEC driver
- Lots of drivers fixes, improvements and additions
* tag 'media/v4.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (464 commits)
[media] ttusb_dec: avoid the risk of go past buffer
[media] cx23885: Fix some smatch warnings
[media] si2165: switch to regmap
[media] si2165: use i2c_client->dev instead of i2c_adapter->dev for logging
[media] si2165: Remove legacy attach
[media] cx231xx: attach si2165 driver via i2c_client
[media] cx231xx: Prepare for attaching new style i2c_client DVB demod drivers
[media] cx23885: attach si2165 driver via i2c_client
[media] si2165: support i2c_client attach
[media] si2165: avoid division by zero
[media] rcar-vin: add R-Car gen2 fallback compatibility string
[media] lgdt3306a: remove 20*50 msec unnecessary timeout
[media] cx25821: Remove deprecated create_singlethread_workqueue
[media] cx25821: Drop Freeing of Workqueue
[media] cxd2841er: force 8MHz bandwidth for DVB-C if specified bw not supported
[media] redrat3: hardware-specific parameters
[media] redrat3: remove hw_timeout member
[media] cxd2841er: BER and SNR reading for ISDB-T
[media] dvb-usb: avoid link error with dib3000m{b,c|
[media] dvb-usb: split out common parts of dibusb
...
Pull input subsystem updates from Dmitry Torokhov:
"You will get
- a new driver for Elan eKTF2127 touchscreen controllers
- a new "gpio-decoder" driver to read and report state of several
GPIO lines
- an ADC resistor ladder driver
- the ft6326 driver is removed because edt-ft5x06 handles the same
devices just fine.
.. plus the regular slew of driver fixes/enhancements"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (26 commits)
Input: elan_i2c - fix return tests of i2c_smbus_read_block_data()
Input: ektf2127 - mark PM functions as __maybe_unused
Input: snvs_pwrkey - drop input_free_device call if input_register_device fails
Input: add support for Elan eKTF2127 touchscreen controller
Input: serio - add hangup support
Input: tps65218-pwrbutton - add support for tps65217 variant
Input: jornada720_ts - get rid of mach/irqs.h and mach/hardware.h includes
Input: jornada720_kbd - remove unneeded mach/hardware.h include
Input: focaltech - mark focaltech_set_resolution() static
Input: wdt87xx_i2c - fix the flash erase issue
Input: gpio-keys-polled - don't use unit-address with button nodes
Input: add generic input driver to read encoded GPIO lines
Input: add ADC resistor ladder driver
Input: pegasus_notetaker - directly include workqueue header
Input: elants_i2c - get product id on recovery mode for FW update
Input: wm97xx - remove deprecated create_singletheread_workqueue
Input: mc13783_ts - remove deprecated create_singletheread_workqueue
Input: psmouse - remove deprecated create_singletheread_workqueue
Input: jornada720_kbd - switch to using dev_dbg
Input: jornada720_kbd - get rid of mach/irqs.h include
...
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Merge tag 'v4.8' into patchwork
Linux 4.8
* tag 'v4.8': (1761 commits)
Linux 4.8
ARM: 8618/1: decompressor: reset ttbcr fields to use TTBR0 on ARMv7
MIPS: CM: Fix mips_cm_max_vp_width for non-MT kernels on MT systems
include/linux/property.h: fix typo/compile error
ocfs2: fix deadlock on mmapped page in ocfs2_write_begin_nolock()
mm: workingset: fix crash in shadow node shrinker caused by replace_page_cache_page()
MAINTAINERS: Switch to kernel.org email address for Javi Merino
x86/entry/64: Fix context tracking state warning when load_gs_index fails
x86/boot: Initialize FPU and X86_FEATURE_ALWAYS even if we don't have CPUID
x86/vdso: Fix building on big endian host
x86/boot: Fix another __read_cr4() case on 486
sctp: fix the issue sctp_diag uses lock_sock in rcu_read_lock
sctp: change to check peer prsctp_capable when using prsctp polices
sctp: remove prsctp_param from sctp_chunk
sctp: move sent_count to the memory hole in sctp_chunk
tg3: Avoid NULL pointer dereference in tg3_io_error_detected()
x86/init: Fix cr4_init_shadow() on CR4-less machines
MIPS: Fix detection of unsupported highmem with cache aliases
MIPS: Malta: Fix IOCU disable switch read for MIPS64
MIPS: Fix BUILD_ROLLBACK_PROLOGUE for microMIPS
...
The newly added ektf2127 driver uses the SIMPLE_DEV_PM_OPS macro
to conditionally refer to the resume/suspend functions, which
causes a warning when CONFIG_PM_SLEEP is disabled:
drivers/input/touchscreen/ektf2127.c:168:12: error: 'ektf2127_resume' defined but not used [-Werror=unused-function]
drivers/input/touchscreen/ektf2127.c:156:12: error: 'ektf2127_suspend' defined but not used [-Werror=unused-function]
We could either put these functions inside of an #ifdef or
add __maybe_unused annotations. This uses the second approach,
which is generally more foolproof.
Fixes: 9ca5bf5029 ("Input: add support for Elan eKTF2127 touchscreen controller")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This adds a driver for the Elan eKTF2127 touchscreen controller,
which speaks an i2c protocol which is distinctly different from
the already supported eKTH controllers.
Signed-off-by: Michel Verlaan <michel.verl@gmail.com>
Signed-off-by: Siebren Vroegindeweij <siebren.vroegindeweij@hotmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull input updates from Dmitry Torokhov:
"Just a fix up for the firmware handling to the Silead driver (which is
a new driver in this release)"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: silead_gsl1680 - use "silead/" prefix for firmware loading
Input: silead_gsl1680 - document firmware-name, fix implementation
Add copyright lines for Zodiac who paid for the V4L touch work.
Signed-off-by: Nick Dyer <nick@shmanahar.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The newnly added debug mode for the atmel_mxt_ts driver relies on
the v4l2 interface and vb2_vmalloc, but those might be configured
as loadable modules when the driver itself is built-in, resulting
in a link failure:
drivers/input/touchscreen/atmel_mxt_ts.o: In function `mxt_vidioc_querycap':
atmel_mxt_ts.c:(.text.mxt_vidioc_querycap+0x10): undefined reference to `video_devdata'
drivers/input/touchscreen/atmel_mxt_ts.o: In function `mxt_buffer_queue':
atmel_mxt_ts.c:(.text.mxt_buffer_queue+0x20): undefined reference to `vb2_plane_vaddr'
atmel_mxt_ts.c:(.text.mxt_buffer_queue+0x164): undefined reference to `vb2_buffer_done'
drivers/input/touchscreen/atmel_mxt_ts.o: In function `mxt_free_object_table':
atmel_mxt_ts.c:(.text.mxt_free_object_table+0x18): undefined reference to `video_unregister_device'
atmel_mxt_ts.c:(.text.mxt_free_object_table+0x20): undefined reference to `v4l2_device_unregister'
The best workaround I could come up with is to disallow the debug
mode unless it's actually possible to call it.
Fixes: ecfdd7e266 ("[media] Input: atmel_mxt_ts - output diagnostic debug via V4L2 device")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Nick Dyer <nick@shmanahar.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The silead touch-controller ICs use a different firmware per digitizer /
tablet model. So there are going to be quite a few of then and they really
should be under a separate subdir.
This commit prefixes the default firmware names with "silead/" just like
we are already doing for devicetree specified firmware names.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The driver has supported touchscreen-fw-name to specify the firmware to
load since it has been merged, but this was omitted from the dt-binding
documentation.
During review of adding touchscreen-fw-name to the binding documentation
it was brought up that there is a standard property name called
"firmware-name" for this, which should be used.
Since there are no users of touchscreen-fw-name yet, this commit
adds documentation of "firmware-name" to the dt-binding documentation
and switches the driver over to use this.
This commit also makes the driver add a "silead/" prefix to the
firmware name from dt before calling request_firmware. That the
firmware files are stored under /lib/firmware/silead under Linux
is an implementation detail and does not belong in devicetree.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Switch the jornada720 touchscreen driver to obtain its gpio from
the platform device via gpiolib and derive the interrupt from the
GPIO, rather than via a hard-coded interrupt number obtained from
the mach/irqs.h and mach/hardware.h headers.
Tested-by: Adam Wysocki <armlinux@chmurka.net>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The spec says that flash erase time is 30ms typical/200ms max, so let's
replace current 50ms wait with 200ms to avoid potential failures.
Signed-off-by: HungNien Chen <hn.chen@weidahitech.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
We use hw version to construct name of file holding touchscreen firmware,
so let's try reading it even if touchscreen initialization fails (the
firmware supports reading product/hardware id even when device is in
recovery/boot mode).
Signed-off-by: Johnny Chuang <johnny.chuang@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
alloc_ordered_workqueue() replaces deprecated
create_singlethread_workqueue().
It queues work items via &wm->ts_reader and &wm->pen_event_work which map
to wm97xx_pen_irq_worker (handles a pen down interrupt) and
wm97xx_ts_reader (the touchscreen sample reader) respectively. Hence, an
ordered dedicated workqueue has been used.
Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The workqueue "workqueue" has a single workitem(&priv->work) and hence
doesn't require ordering. Also, it is not being used on a memory reclaim
path. Hence, the singlethreaded workqueue has been replaced with the use
of system_wq.
System workqueues have been able to handle high level of concurrency
for a long time now and hence it's not required to have a singlethreaded
workqueue just to gain concurrency. Unlike a dedicated per-cpu workqueue
created with create_singlethread_workqueue(), system_wq allows multiple
work items to overlap executions even on the same CPU; however, a
per-cpu workqueue doesn't have any CPU locality or global ordering
guarantee unless the target CPU is explicitly specified and thus the
increase of local concurrency shouldn't make any difference.
Workitem is sync cancelled in mc13783_ts_remove() to ensure that there
are no workitems pending when the driver is disconnected.
Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The device hardware is always running at 60 FPS, so report this both via
PARM_IOCTL and ENUM_FRAMEINTERVALS.
[hans.verkuil@cisco.com: fix suspect indent checkpatch warning]
[mchehab@s-opensource.com: fix a trivial merge conflict]
Signed-off-by: Martin Kaltenbrunner <modin@yuri.at>
Signed-off-by: Florian Echtler <floe@butterbrot.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Support both V4L2_TCH_FMT_TU08 and V4L2_PIX_FMT_GREY for backwards
compatibility.
Signed-off-by: Nick Dyer <nick@shmanahar.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
There are different datatypes available from a maXTouch chip. Add
support to retrieve reference data as well.
Signed-off-by: Nick Dyer <nick@shmanahar.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The mXT1386 family of chips have a different architecture which splits
the diagnostic data into 3 columns.
Signed-off-by: Nick Dyer <nick@shmanahar.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Invert the diagnostic data to match the orientation of the input device.
Signed-off-by: Nick Dyer <nick@shmanahar.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The touchscreen may have a margin where not all the matrix is used. Read
the parameters from T9 and T100 and take account of the difference.
Note: this does not read the XORIGIN/YORIGIN fields so it assumes that
the touchscreen starts at (0,0)
Signed-off-by: Nick Dyer <nick@shmanahar.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Atmel maXTouch devices have a T37 object which can be used to read raw
touch deltas from the device. This consists of an array of 16-bit
integers, one for each node on the touchscreen matrix.
Signed-off-by: Nick Dyer <nick@shmanahar.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This patch fix the following checkpatch report:
Blank lines aren't necessary after an open brace
Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Checkpatch complains about the text suggesting writing to
Free Software Foundation for GPLv2 license copy.
This patch remove that text.
Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The usage of of_device_get_match_data reduce the code size a bit.
Furthermore, it is better to use a standard function for
getting the match data.
Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The new(ish) ft6236 simply re-implements the M09 protocol of the
(much) older edt-ft5x06.c driver.
This commit removes this duplicate driver and adds the i2c ids and
dt compatible string to the edt-ft5x06.c driver to keep compatibility.
This commit also adds the standard touchscreen properties as optional
properties to the edt,ft5x06 binding, these were documented in the
focaltech,ft6236 bindingi, but were missing from the edt,ft5x06 doc.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
ADS7846 regulator is disabled twice in a row in ads7846_remove(). Valid
one is in ads7846_disable().
Removing the ads7846 module causes warning about unbalanced disables.
...
WARNING: CPU: 0 PID: 29269 at drivers/regulator/core.c:2251 _regulator_disable+0xf8/0x130
unbalanced disables for vads7846
CPU: 0 PID: 29269 Comm: rmmod Tainted: G D W 4.7.0+ #3
Hardware name: HTC Magician
...
show_stack+0x10/0x14
__warn+0xd8/0x100
warn_slowpath_fmt+0x38/0x48
_regulator_disable+0xf8/0x130
regulator_disable+0x34/0x60
ads7846_remove+0x58/0xd4 [ads7846]
spi_drv_remove+0x1c/0x34
__device_release_driver+0x84/0x114
driver_detach+0x8c/0x90
bus_remove_driver+0x5c/0xc8
SyS_delete_module+0x1a0/0x238
ret_fast_syscall+0x0/0x38
Signed-off-by: Petr Cvek <petr.cvek@tul.cz>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The silead code is using devm_foo for everything (and does not free
any resources). Except that it is using gpiod_get instead of
devm_gpiod_get (but is not freeing the gpio_desc), change this
to use devm_gpiod_get so that the gpio will be properly released.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull more input updates from Dmitry Torokhov:
"Two new drivers for touchscreen controllers:
- Silead touchscreen controllers
- SiS 9200 family touchscreen controllers
and a few driver fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: silead - remove some dead code
Input: sis-i2c - select CONFIG_CRC_ITU_T
Input: add driver for SiS 9200 family I2C touchscreen controllers
Input: ili210x - fix permissions on "calibrate" attribute
Input: elan_i2c - properly wake up touchpad on ASUS laptops
Input: add driver for Silead touchscreens
Input: elantech - fix debug dump of the current packet
Input: rotary_encoder - support binary encoding of states
Input: xpad - power off wireless 360 controllers on suspend
Input: i8042 - break load dependency between atkbd/psmouse and i8042
Input: synaptics-rmi4 - do not check for NULL when calling of_node_put()
Input: cros_ec_keyb - cleanup use of dev
buf[0] is an unsigned char. touch_nr is an int. The test for negative
here doesn't make sense so I have removed it.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The newly added sis_i2c driver fails to link without the CRC_ITU_T
driver enabled:
drivers/input/touchscreen/sis_i2c.o: In function `sis_ts_irq_handler':
sis_i2c.c:(.text+0xc0): undefined reference to `crc_itu_t'
This adds a Kconfig select statement.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: a485cb037f ("Input: add driver for SiS 9200 family I2C touchscreen controllers")
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This is a driver for SiS 9200 family touchscreen controllers using I2C bus.
Signed-off-by: Mika Penttilä <mika.penttila@nextfour.com>
Acked-by: Tammy Tseng <tammy_tseng@sis.com>
Acked-by: Yuger Yu <yuger_yu@sis.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
"calibrate" attribute does not provide "show" methods and thus we should
not mark it as readable.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This driver adds support for Silead touchscreens. It has been tested
with GSL1680 and GSL3680 touch panels.
It supports ACPI and device tree enumeration. Screen resolution,
the maximum number of fingers supported and firmware name are
configurable.
Signed-off-by: Robert Dolca <robert.dolca@intel.com>
Signed-off-by: Daniel Jansen <djaniboe@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull input updates from Dmitry Torokhov:
"Updates for the input subsystem. This contains the following new
drivers promised in the last merge window:
- driver for touchscreen controller found in Surface 3
- driver for Pegasus Notetaker tablet
- driver for Atmel Captouch Buttons
- driver for Raydium I2C touchscreen controllers
- powerkey driver for HISI 65xx SoC
plus a few fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (40 commits)
Input: tty/vt/keyboard - use memdup_user()
Input: pegasus_notetaker - set device mode in reset_resume() if in use
Input: pegasus_notetaker - cancel workqueue's work in suspend()
Input: pegasus_notetaker - fix usb_autopm calls to be balanced
Input: pegasus_notetaker - handle usb control msg errors
Input: wacom_w8001 - handle errors from input_mt_init_slots()
Input: wacom_w8001 - resolution wasn't set for ABS_MT_POSITION_X/Y
Input: pixcir_ts - add support for axis inversion / swapping
Input: icn8318 - use of_touchscreen helpers for inverting / swapping axes
Input: edt-ft5x06 - add support for inverting / swapping axes
Input: of_touchscreen - add support for inverted / swapped axes
Input: synaptics-rmi4 - use the RMI_F11_REL_BYTES define in rmi_f11_rel_pos_report
Input: synaptics-rmi4 - remove unneeded variable
Input: synaptics-rmi4 - remove pointer to rmi_function in f12_data
Input: synaptics-rmi4 - support regulator supplies
Input: raydium_i2c_ts - check CRC of incoming packets
Input: xen-kbdfront - prefer xenbus_write() over xenbus_printf() where possible
Input: fix a double word "is is" in include/linux/input.h
Input: add powerkey driver for HISI 65xx SoC
Input: apanel - spelling mistake - "skiping" -> "skipping"
...
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Merge tag 'media/v4.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- new framework support for HDMI CEC and remote control support
- new encoding codec driver for Mediatek SoC
- new frontend driver: helene tuner
- added support for NetUp almost universal devices, with supports
DVB-C/S/S2/T/T2 and ISDB-T
- the mn88472 frontend driver got promoted from staging
- a new driver for RCar video input
- some soc_camera legacy drivers got removed: timb, omap1, mx2, mx3
- lots of driver cleanups, improvements and fixups
* tag 'media/v4.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (377 commits)
[media] cec: always check all_device_types and features
[media] cec: poll should check if there is room in the tx queue
[media] vivid: support monitor all mode
[media] cec: fix test for unconfigured adapter in main message loop
[media] cec: limit the size of the transmit queue
[media] cec: zero unused msg part after msg->len
[media] cec: don't set fh to NULL in CEC_TRANSMIT
[media] cec: clear all status fields before transmit and always fill in sequence
[media] cec: CEC_RECEIVE overwrote the timeout field
[media] cxd2841er: Reading SNR for DVB-C added
[media] cxd2841er: Reading BER and UCB for DVB-C added
[media] cxd2841er: fix switch-case for DVB-C
[media] cxd2841er: fix signal strength scale for ISDB-T
[media] cxd2841er: adjust the dB scale for DVB-C
[media] cxd2841er: provide signal strength for DVB-C
[media] cxd2841er: fix BER report via DVBv5 stats API
[media] mb86a20s: apply mask to val after checking for read failure
[media] airspy: fix error logic during device register
[media] s5p-cec/TODO: add TODO item
[media] cec/TODO: drop comment about sphinx documentation
...
Pull input fixes from Dmitry Torokhov:
"A few more fixes for the input subsystem:
- restore naming for tsc2005 touchscreens as some userspace match on it
- fix out of bound access in legacy keyboard driver
- fixup in RMI4 driver
Everything is tagged for stable as well"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: tsc200x - report proper input_dev name
tty/vt/keyboard: fix OOB access in do_compute_shiftstate()
Input: synaptics-rmi4 - fix maximum size check for F12 control register 8
Passes input_id struct to the common probe function for the tsc200x drivers
instead of just the bustype.
This allows for the use of the product variable to set the input_dev->name
variable according to the type of touchscreen used. Note that when we
introduced support for TSC2004 we started calling everything TSC200X, so
let's keep this quirk.
Signed-off-by: Michael Welling <mwelling@ieee.org>
Cc: stable@vger.kernel.org
Acked-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
input_mt_init_slots() may fail and we should be handling failures properly.
Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull input fixes from Dmitry Torokhov:
"A few last-minute updates for the input subsystem"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: ts4800-ts - add missing of_node_put after calling of_parse_phandle
Input: synaptics-rmi4 - use of_get_child_by_name() to fix refcount
Revert "Input: wacom_w8001 - drop use of ABS_MT_TOOL_TYPE"
Input: xpad - validate USB endpoint count during probe
Input: add SW_PEN_INSERTED define
Add support for axis inversion / swapping using the new
touchscreen_parse_properties() and touchscreen_set_mt_pos()
functionality.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Dmitry Torokhov