include/linux/i2c is not for client devices. Move the header file to a
more appropriate location.
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
When using the 'object' sysfs attribute, T100 is not displayed in
the output.
Signed-off-by: Maxime Roussin-Bélanger <maxime.roussinbelanger@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The datasheet and application note does not mention an allowed range for
the M09_REGISTER_THRESHOLD parameter. One of our customers needs to set
lower values than 20 and they seem to work just fine on EDT EP0xx0M09 with
T5x06 touch.
So, lacking a known lower limit, we increase the range for thresholds,
and set the lower limit to 0. The documentation is updated accordingly.
Signed-off-by: Schoefegger Stefan <stefan.schoefegger@ginzinger.com>
Signed-off-by: Manfred Schlaegl <manfred.schlaegl@ginzinger.com>
Signed-off-by: Martin Kepplinger <martin.kepplinger@ginzinger.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Merge tag 'hwparam-20170420' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
Pull hw lockdown support from David Howells:
"Annotation of module parameters that configure hardware resources
including ioports, iomem addresses, irq lines and dma channels.
This allows a future patch to prohibit the use of such module
parameters to prevent that hardware from being abused to gain access
to the running kernel image as part of locking the kernel down under
UEFI secure boot conditions.
Annotations are made by changing:
module_param(n, t, p)
module_param_named(n, v, t, p)
module_param_array(n, t, m, p)
to:
module_param_hw(n, t, hwtype, p)
module_param_hw_named(n, v, t, hwtype, p)
module_param_hw_array(n, t, hwtype, m, p)
where the module parameter refers to a hardware setting
hwtype specifies the type of the resource being configured. This can
be one of:
ioport Module parameter configures an I/O port
iomem Module parameter configures an I/O mem address
ioport_or_iomem Module parameter could be either (runtime set)
irq Module parameter configures an I/O port
dma Module parameter configures a DMA channel
dma_addr Module parameter configures a DMA buffer address
other Module parameter configures some other value
Note that the hwtype is compile checked, but not currently stored (the
lockdown code probably won't require it). It is, however, there for
future use.
A bonus is that the hwtype can also be used for grepping.
The intention is for the kernel to ignore or reject attempts to set
annotated module parameters if lockdown is enabled. This applies to
options passed on the boot command line, passed to insmod/modprobe or
direct twiddling in /sys/module/ parameter files.
The module initialisation then needs to handle the parameter not being
set, by (1) giving an error, (2) probing for a value or (3) using a
reasonable default.
What I can't do is just reject a module out of hand because it may
take a hardware setting in the module parameters. Some important
modules, some ipmi stuff for instance, both probe for hardware and
allow hardware to be manually specified; if the driver is aborts with
any error, you don't get any ipmi hardware.
Further, trying to do this entirely in the module initialisation code
doesn't protect against sysfs twiddling.
[!] Note that in and of itself, this series of patches should have no
effect on the the size of the kernel or code execution - that is
left to a patch in the next series to effect. It does mark
annotated kernel parameters with a KERNEL_PARAM_FL_HWPARAM flag in
an already existing field"
* tag 'hwparam-20170420' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs: (38 commits)
Annotate hardware config module parameters in sound/pci/
Annotate hardware config module parameters in sound/oss/
Annotate hardware config module parameters in sound/isa/
Annotate hardware config module parameters in sound/drivers/
Annotate hardware config module parameters in fs/pstore/
Annotate hardware config module parameters in drivers/watchdog/
Annotate hardware config module parameters in drivers/video/
Annotate hardware config module parameters in drivers/tty/
Annotate hardware config module parameters in drivers/staging/vme/
Annotate hardware config module parameters in drivers/staging/speakup/
Annotate hardware config module parameters in drivers/staging/media/
Annotate hardware config module parameters in drivers/scsi/
Annotate hardware config module parameters in drivers/pcmcia/
Annotate hardware config module parameters in drivers/pci/hotplug/
Annotate hardware config module parameters in drivers/parport/
Annotate hardware config module parameters in drivers/net/wireless/
Annotate hardware config module parameters in drivers/net/wan/
Annotate hardware config module parameters in drivers/net/irda/
Annotate hardware config module parameters in drivers/net/hamradio/
Annotate hardware config module parameters in drivers/net/ethernet/
...
Pull input subsystem updates from Dmitry Torokhov:
- a big update from Mauro converting input documentation to ReST format
- Synaptics PS/2 is now aware of SMBus companion devices, which means
that we can now use native RMI4 protocol to handle touchpads, instead
of relying on legacy PS/2 mode.
- we removed support from BMA180 accelerometer from input devices as it
is now handled properly by IIO
- update to TSC2007 to corretcly report pressure
- other miscellaneous driver fixes.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (152 commits)
Input: ar1021_i2c - use BIT to check for a bit
Input: twl4030-pwrbutton - use input_set_capability() helper
Input: twl4030-pwrbutton - use correct device for irq request
Input: ar1021_i2c - enable touch mode during open
Input: add uinput documentation
dt-bindings: input: add bindings document for ar1021_i2c driver
dt-bindings: input: rotary-encoder: fix typo
Input: xen-kbdfront - add module parameter for setting resolution
ARM: pxa/raumfeld: fix compile error in rotary controller resources
Input: xpad - do not suggest writing to Dominic
Input: xpad - don't use literal blocks inside footnotes
Input: xpad - note that usb/devices is now at /sys/kernel/debug/
Input: docs - freshen up introduction
Input: docs - split input docs into kernel- and user-facing
Input: docs - note that MT-A protocol is obsolete
Input: docs - update joystick documentation a bit
Input: docs - remove disclaimer/GPL notice
Input: fix "Game console" heading level in joystick documentation
Input: rotary-encoder - remove references to platform data from docs
Input: move documentation for Amiga CD32
...
The MSB for the first byte of touch data transmission is always 1. Make
it a little more obvious we're testing this bit by using BIT(7).
Signed-off-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The device could as well be in command mode, in which this driver cannot
handle the device. When opening the device, let's make sure the device
will be in the mode we expect it to be for this driver.
Signed-off-by: Martin Kepplinger <martin.kepplinger@ginzinger.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
These tests are meaningless as is because "adapt" can't possibly be both
less than 1 and greater than 32.
Fixes: d81ca730e3 ("input: touchscreen: mxs-lradc: Add support for touchscreen")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
When the kernel is running in secure boot mode, we lock down the kernel to
prevent userspace from modifying the running kernel image. Whilst this
includes prohibiting access to things like /dev/mem, it must also prevent
access by means of configuring driver modules in such a way as to cause a
device to access or modify the kernel image.
To this end, annotate module_param* statements that refer to hardware
configuration and indicate for future reference what type of parameter they
specify. The parameter parser in the core sees this information and can
skip such parameters with an error message if the kernel is locked down.
The module initialisation then runs as normal, but just sees whatever the
default values for those parameters is.
Note that we do still need to do the module initialisation because some
drivers have viable defaults set in case parameters aren't specified and
some drivers support automatic configuration (e.g. PNP or PCI) in addition
to manually coded parameters.
This patch annotates drivers in drivers/input/.
Suggested-by: Alan Cox <gnomes@lxorguk.ukuu.org.uk>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
cc: linux-input@vger.kernel.org
ar1021_i2c also supports the ar1020 device I'm using. This is tested.
They also share the same datasheet:
http://ww1.microchip.com/downloads/en/DeviceDoc/40001393C.pdf
So let users see that they have a compatible in front of them by adding
AR1020 to the driver's description.
Signed-off-by: Martin Kepplinger <martin.kepplinger@ginzinger.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
We should not be forcing edge triggered interrupt, but rather let platform
decide the kind of trigger it needs to use. Also, the driver is not quite
safe with regard to edge-triggered interrupts as it does not try to kick
the controller after requesting/enabling IRQ.
Reviewed-By: Christian Gmeiner <christian.gmeiner@gmail.com>
Tested-by: Martin Kepplinger <martin.kepplinger@ginzinger.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The name field in structure i2c_device_id is 20 characters, and we expect
it to be NULL-terminated, however we are trying to stuff it with 21 bytes
and thus NULL-terminator is lost. This causes issues when one creates
device with name "MICROCHIP_AR1021_I2C" as i2c core cuts off the last "C",
and automatic module loading by alias does not work as result.
The -I2C suffix in the device name is superfluous, we know what bus we are
dealing with, so let's drop it. Also, no other driver uses capitals, and
the manufacturer name is normally not included, except in very rare cases
of incompatible name collisions.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=116211
Fixes: dd4cae8bf1 ("Input: Add Microchip AR1021 i2c touchscreen")
Reviewed-By: Christian Gmeiner <christian.gmeiner@gmail.com>
Tested-by: Martin Kepplinger <martin.kepplinger@ginzinger.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Use the common kernel coding style and corrently align parameters with
open parenthesis.
Signed-off-by: Martin Kepplinger <martin.kepplinger@ginzinger.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
clk_prepare_enable() may fail, so we better check its return value and
propagate it in the case of error.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
If imx6ul_tsc_init() fails we should not return directly.
We should disable the previously acquired clocks in this case.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
sparse says:
sur40.c:372:40: warning: restricted __le32 degrades to integer
the header's data is __le32 so we need to convert it before comparing.
Signed-off-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
gpiod API allows standard way of specifying GPIO polarity and takes it into
account when reading or setting GPIO state. It also allows us to switch to
common way of obtaining GPIO descriptor and away form legacy platform data.
Reviewed-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Instead of keying interrupt trigger off GPIO polarity, let's rely on
platform code to set it up properly for us.
Reviewed-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Instead of having standard interrupt handler and manually firing work item
to perform I2C reads, let's switch to threaded interrupts, which were
designed specifically for this purpose.
Reviewed-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
We are reading GPIO state in a non-atomic context (workqueue), so we can
use "cansleep" variant, and thus make the driver available on systems where
GPIO controllers require sleeping when reading GPIO state.
Reviewed-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Instead of expecting that GPIO is always interrupt source, let's use
interrupt specified in I2C client.
Reviewed-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Instead of manually converting big endian data on wire into host
endianness, let's use helpers to do that for us. It might save us
a few cycles if host endianness matches what's on wire.
Reviewed-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Merge tag 'v4.11-rc5' into next
Sync up with mainline to bring in changes to input subsystem merged
through other trees.
Added missing of_match_table for max11801_ts driver with compatible as
"maxim,max11801_ts"
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Try a quick read from the device in mip4_query_device() to make sure
that the device is there, as we do not consider failures to retrieve
product name or resolution fatal.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Each time the HWMON devices are read (e.g. battery voltage) while the
touchscreen is held pressed, extra pen-up and pen-down events are
generated. This is fixed by avoiding the UP event when the touchscreen is
stopped.
Signed-off-by: David Jander <david@protonic.nl>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull input fixes from Dmitry Torokhov:
"Fixes to various USB drivers to validate existence of endpoints before
trying to use them, fixes to APLS v8 protocol, and a couple of i8042
quirks"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: ALPS - fix trackstick button handling on V8 devices
Input: ALPS - fix V8+ protocol handling (73 03 28)
Input: sur40 - validate number of endpoints before using them
Input: kbtab - validate number of endpoints before using them
Input: hanwang - validate number of endpoints before using them
Input: yealink - validate number of endpoints before using them
Input: ims-pcu - validate number of endpoints before using them
Input: cm109 - validate number of endpoints before using them
Input: iforce - validate number of endpoints before using them
Input: elan_i2c - add ASUS EeeBook X205TA special touchpad fw
Input: i8042 - add TUXEDO BU1406 (N24_25BU) to the nomux list
Input: synaptics-rmi4 - prevent null pointer dereference in f30
Input: i8042 - add noloop quirk for Dell Embedded Box PC 3000
The driver doesn't have a struct of_device_id table but supported devices
are registered via Device Trees. This is working on the assumption that a
I2C device registered via OF will always match a legacy I2C device ID and
that the MODALIAS reported will always be of the form i2c:<device>.
But this could change in the future so the correct approach is to have an
OF device ID table if the devices are registered via OF.
As pointed by Hans de Goede, there's no mssl1680 and this is just used in
some ACPI systems to identify the gsl1680 chip. So isn't included in the
OF device ID table since a DT should use the proper device name instead.
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Make sure to check the number of endpoints to avoid dereferencing a
NULL-pointer or accessing memory that lie beyond the end of the endpoint
array should a malicious device lack the expected endpoints.
Fixes: bdb5c57f20 ("Input: add sur40 driver for Samsung SUR40... ")
Signed-off-by: Johan Hovold <johan@kernel.org>
Cc: stable@vger.kernel.org # 3.13
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Update the code to use devm_* API so that driver core will manage
resources.
Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Instead of manipulating capabilities bits of input device directly, let's
use input_set_capability() API.
Also, stop setting ABS_X/Y bits explicitly as input_set_abs_params() does
this for us.
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
We have switched the driver to use generic device properties API, so there
is no need to check for presence of DT node before trying parse properties.
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
With the switch to devm, there is no need for ad7879_probe() to return the
touchscreen structure, we can use plain error code. This also fixes issue
introduced with devm concersion, where we returned 0 on success (which
worked OK since IS_ERR(0) would not trigger, but was not correct
regardless).
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>
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>
Use the touchscreen_parse_properties() and touchscreen_report_pos() to
perform coordinates transformation, instead of DIY code, which results in a
nice cleanup.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add support for inverting / swapping axes using the new
touchscreen_parse_properties() and touchscreen_report_pos()
functionality.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Extend touchscreen_parse_properties() with support for the
touchscreen-inverted-x/y and touchscreen-swapped-x-y properties and
add touchscreen_set_mt_pos() and touchscreen_report_pos() helper
functions for storing coordinates into a input_mt_pos struct, or
directly reporting them, taking these properties into account.
This commit also modifies the existing callers of
touchscreen_parse_properties() to pass in NULL for the new third
argument, keeping the existing behavior.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
of_node_put needs to be called when the device node which is got
from of_parse_phandle has finished using.
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This reverts commit 5f7e5445a2 because
removal of input_mt_report_slot_state() means we no longer generate
tracking IDs for the reported contacts.
Cc: stable@vger.kernel.org
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Ping Cheng <pinglinux@gmail.com>
Check CRC of incoming touch packets to ensure that we do not operate on
corrupted data.
Signed-off-by: Jeffrey Lin <jeffrey.lin@rad-ic.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Merge tag 'v4.7-rc6' into patchwork
Linux 4.7-rc6
* tag 'v4.7-rc6': (1245 commits)
Linux 4.7-rc6
ovl: warn instead of error if d_type is not supported
MIPS: Fix possible corruption of cache mode by mprotect.
locks: use file_inode()
usb: dwc3: st: Use explicit reset_control_get_exclusive() API
phy: phy-stih407-usb: Use explicit reset_control_get_exclusive() API
phy: miphy28lp: Inform the reset framework that our reset line may be shared
namespace: update event counter when umounting a deleted dentry
9p: use file_dentry()
lockd: unregister notifier blocks if the service fails to come up completely
ACPI,PCI,IRQ: correct operator precedence
fuse: serialize dirops by default
drm/i915: Fix missing unlock on error in i915_ppgtt_info()
powerpc: Initialise pci_io_base as early as possible
mfd: da9053: Fix compiler warning message for uninitialised variable
mfd: max77620: Fix FPS switch statements
phy: phy-stih407-usb: Inform the reset framework that our reset line may be shared
usb: dwc3: st: Inform the reset framework that our reset line may be shared
usb: host: ehci-st: Inform the reset framework that our reset line may be shared
usb: host: ohci-st: Inform the reset framework that our reset line may be shared
...
Don't fill in the format description. This is now done in the V4L2 core to ensure
consistent descriptions.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Nick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Closing the V4L2 device sometimes triggers a kernel oops.
Present patch fixes this.
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>
Cc: <stable@vger.kernel.org> # for v4.2 and up
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The framerate sometimes drops below 60 Hz if the poll interval is too high.
Lowering it to the minimum of 1 ms fixes this.
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>
Cc: <stable@vger.kernel.org> # for v4.2 and up
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Make this a proper typed array. Drop the old allocate context code since
that is no longer used.
Note that the memops functions now get a struct device pointer instead of
the struct device ** that was there initially (actually a void pointer to
a struct containing only a struct device pointer).
This code is now a lot cleaner.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Stop using alloc_ctx and just fill in the device pointer.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Florian Echtler <floe@butterbrot.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Pull input fixes from Dmitry Torokhov.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: vmmouse - remove port reservation
Input: elantech - add more IC body types to the list
Input: wacom_w8001 - ignore invalid pen data packets
Input: wacom_w8001 - w8001_MAX_LENGTH should be 13
Input: xpad - fix oops when attaching an unknown Xbox One gamepad
MAINTAINERS: add Pali Rohár as reviewer of ALPS PS/2 touchpad driver
Input: add HDMI CEC specific keycodes
Input: add BUS_CEC type
Input: xpad - fix rumble on Xbox One controllers with 2015 firmware
ThinkPad X60 Tablet PC (pen only device) sometime posts
packets that are larger than W8001_PKTLEN_TPCPEN.
Reported-by: Chris J Arges <christopherarges@gmail.com>
Tested-by: Chris J Arges <christopherarges@gmail.com>
Signed-off-by: Ping Cheng <pingc@wacom.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Somehow the patch that added two-finger touch support forgot to update
W8001_MAX_LENGTH from 11 to 13.
Signed-off-by: Ping Cheng <pingc@wacom.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Fix the code formatting to use the kernel preferred style
of using the actual variables to determize the size using
the sizeof() operator.
Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
We should not be ignoring -EPROBE_DEFER reported by
devm_gpiod_get_optional(), but report it as any other error to the upper
layers. While we are at it simplify check for the presence of reset GPIO
and instead of using IS_ERR_OR_NULL just use boolean.
Also do not return -ENOMEM from suspend handler when the device in
bootloader mode as that does not make sense and switch to -EBUSY instead.
Reported-by: Guenter Roeck <groeck@chromium.org>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This adds support for Raydium I2C touch controllers compatible with
RM32380.
Signed-off-by: Jeffrey Lin <jeffrey.lin@rad-ic.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This change creates a second input device which will handle input from
a Surface Pen. The Surface Pen supplies a different packet header than
touch events, so it is simple to handle one or the other.
This patch handles both the newer Surface Pen with one button, and the
older variant with a second button to switch to Eraser mode.
Signed-off-by: Stephen Just <stephenjust@gmail.com>
Reviewed-and-tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Surface Pens can be supported by handling a second report type. Prepare
for this change.
Signed-off-by: Stephen Just <stephenjust@gmail.com>
Reviewed-and-tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull thermal management updates from Zhang Rui:
- Introduce generic ADC thermal driver, based on OF thermal (Laxman
Dewangan)
- Introduce new thermal driver for Tango chips (Marc Gonzalez)
- Rockchip driver support for RK3399, RK3366, and some fixes (Caesar
Wang, Elaine Zhang and Shawn Lin)
- Add CPU power cooling model to Mediatek thermal driver (Dawei Chien)
- Wider usage of dev_thermal_zone_of_sensor_register (Eduardo Valentin)
- TI thermal driver gained a new maintainer (Keerthy).
- Enabled powerclamp driver by checking CPU feature and package cstate
counter instead of CPU whitelist (Jacob Pan)
- Various fixes on thermal governor, OF thermal, Tegra, and RCAR
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (50 commits)
thermal: tango: initialize TEMPSI_CFG
thermal: rockchip: use the usleep_range instead of udelay
thermal: rockchip: add the notes for better reading
thermal: rockchip: Support RK3366 SoCs in the thermal driver
thermal: rockchip: handle the power sequence for tsadc controller
thermal: rockchip: update the tsadc table for rk3399
thermal: rockchip: fixes the code_to_temp for tsadc driver
thermal: rockchip: disable thermal->clk in err case
thermal: tegra: add Tegra132 specific SOC_THERM driver
thermal: fix ptr_ret.cocci warnings
thermal: mediatek: Add cpu dynamic power cooling model.
thermal: generic-adc: Add ADC based thermal sensor driver
thermal: generic-adc: Add DT binding for ADC based thermal sensor
thermal: tegra: fix static checker warning
thermal: tegra: mark PM functions __maybe_unused
thermal: add temperature sensor support for tango SoC
thermal: hisilicon: fix IRQ imbalance enabling
thermal: hisilicon: support to use any sensor
thermal: rcar: Remove binding docs for r8a7794
thermal: tegra: add PM support
...
This is a basic driver for the Surface 3. I am not so sure it will work
with any firmwares as most values are encoded, but given that I only have
access to my current device with its firmware and I don't have the
datasheet, it should be OK for now.
The Surface Pen is not supported (if it is supposed to be). I'll work on
this when I get one.
Tested-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The migor touchscreen driver is now available for COMPILE_TEST,
so we run into a harmless randconfig warning on ARM when CONFIG_PM
is disabled:
drivers/input/touchscreen/migor_ts.c:216:12: error: 'migor_ts_resume' defined but not used [-Werror=unused-function]
drivers/input/touchscreen/migor_ts.c:205:12: error: 'migor_ts_suspend' defined but not used [-Werror=unused-function]
This shuts up the warning by marking the two functions as __maybe_unused.
We could do the same thing by adding an #ifdef, but this version is
more reliable.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The driver only has runtime but no build time dependency with SH_MIGOR, so
it can be built for testing purposes if the COMPILE_TEST option is enabled.
This is useful to have more build coverage and make sure that drivers are
not affected by changes that could cause build regressions.
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
There is a typo in the driver for the I2C device table that is passed to
the MODULE_DEVICE_TABLE() macro, this leads to the following build error:
CC [M] drivers/input/touchscreen//migor_ts.o
drivers/input/touchscreen//migor_ts.c:233:21: error: 'migor_ts' undeclared here (not in a function)
MODULE_DEVICE_TABLE(i2c, migor_ts);
^
drivers/input/touchscreen//migor_ts.c:233:31: error: '__mod_i2c__migor_ts_device_table' aliased to undefined symbol 'migor_ts'
MODULE_DEVICE_TABLE(i2c, migor_ts);
^
scripts/Makefile.build:295: recipe for target 'drivers/input/touchscreen//migor_ts.o' failed
make[1]: *** [drivers/input/touchscreen//migor_ts.o] Error 1
Makefile:1446: recipe for target '_module_drivers/input/touchscreen/' failed
make: *** [_module_drivers/input/touchscreen/] Error 2
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Core infrastructural changes:
- Support for natively single-ended GPIO driver stages. This
means that if the hardware has registers to configure open
drain or open source configuration, we use that rather than
(as we did before) try to emulate it by switching the line
to an input to get high impedance. This is also documented
throughly in Documentation/gpio/driver.txt for those of you
who did not understand one word of what I just wrote.
- Start to do away with the unnecessarily complex and
unitelligible ARCH_REQUIRE_GPIOLIB and
ARCH_WANT_OPTIONAL_GPIOLIB, another evolutional artifact from
the time when the GPIO subsystem was unmaintained. Archs can
now just select GPIOLIB and be done with it, cleanups to
arches will trickle in for the next kernel. Some minor archs
ACKed the changes immediately so these are included in this
pull request.
- Advancing the use of the data pointer inside the GPIO device
for storing driver data by switching the PowerPC, Super-H
Unicore and a few other subarches or subsystem drivers in
ALSA SoC, Input, serial, SSB, staging etc to use it.
- The initialization now reads the input/output state of the
GPIO lines, so that each GPIO descriptor knows - if this
callback is implemented - whether the line is input or
output. This also reflects nicely in userspace "lsgpio".
- It is now possible to name GPIO producer names, line names,
from the device tree. (Platform data has been supported for
a while.) I bet we will get a similar mechanism for ACPI
one of those days. This makes is possible to get sensible
producer names for e.g. GPIO rails in "lsgpio" in userspace.
New drivers:
- New driver for the Loongson1.
- The XLP driver now supports Broadcom Vulcan ARM64.
- The IT87 driver now supports IT8620 and IT8628.
- The PCA953X driver now supports Galileo Gen2.
Driver improvements:
- MCP23S08 was switched to use the gpiolib irqchip helpers and
now also suppors level-triggered interrupts.
- 74x164 and RCAR now supports the .set_multiple() callback
- AMDPT was converted to use generic GPIO.
- TC3589x, TPS65218, SX150X, F7188X, MENZ127, VX855, WM831X, WM8994
support the new single ended callback for open drain
and in some cases open source.
- Implement the .get_direction() callback for a few more drivers
like PL061, Xgene.
Cleanups:
- Paul Gortmaker combed through the drivers and de-modularized
those who are not really modules.
- Move the GPIO poweroff DT bindings to the power subdir where
they belong.
- Rename gpio-generic.c to gpio-mmio.c, which is much more to the
point. That's what it is handling, nothing more, nothing less.
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Merge tag 'gpio-v4.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO updates from Linus Walleij:
"This is the bulk of GPIO changes for kernel cycle v4.7:
Core infrastructural changes:
- Support for natively single-ended GPIO driver stages.
This means that if the hardware has registers to configure open
drain or open source configuration, we use that rather than (as we
did before) try to emulate it by switching the line to an input to
get high impedance.
This is also documented throughly in Documentation/gpio/driver.txt
for those of you who did not understand one word of what I just
wrote.
- Start to do away with the unnecessarily complex and unitelligible
ARCH_REQUIRE_GPIOLIB and ARCH_WANT_OPTIONAL_GPIOLIB, another
evolutional artifact from the time when the GPIO subsystem was
unmaintained.
Archs can now just select GPIOLIB and be done with it, cleanups to
arches will trickle in for the next kernel. Some minor archs ACKed
the changes immediately so these are included in this pull request.
- Advancing the use of the data pointer inside the GPIO device for
storing driver data by switching the PowerPC, Super-H Unicore and
a few other subarches or subsystem drivers in ALSA SoC, Input,
serial, SSB, staging etc to use it.
- The initialization now reads the input/output state of the GPIO
lines, so that each GPIO descriptor knows - if this callback is
implemented - whether the line is input or output. This also
reflects nicely in userspace "lsgpio".
- It is now possible to name GPIO producer names, line names, from
the device tree. (Platform data has been supported for a while).
I bet we will get a similar mechanism for ACPI one of those days.
This makes is possible to get sensible producer names for e.g.
GPIO rails in "lsgpio" in userspace.
New drivers:
- New driver for the Loongson1.
- The XLP driver now supports Broadcom Vulcan ARM64.
- The IT87 driver now supports IT8620 and IT8628.
- The PCA953X driver now supports Galileo Gen2.
Driver improvements:
- MCP23S08 was switched to use the gpiolib irqchip helpers and now
also suppors level-triggered interrupts.
- 74x164 and RCAR now supports the .set_multiple() callback
- AMDPT was converted to use generic GPIO.
- TC3589x, TPS65218, SX150X, F7188X, MENZ127, VX855, WM831X, WM8994
support the new single ended callback for open drain and in some
cases open source.
- Implement the .get_direction() callback for a few more drivers like
PL061, Xgene.
Cleanups:
- Paul Gortmaker combed through the drivers and de-modularized those
who are not really modules.
- Move the GPIO poweroff DT bindings to the power subdir where they
belong.
- Rename gpio-generic.c to gpio-mmio.c, which is much more to the
point. That's what it is handling, nothing more, nothing less"
* tag 'gpio-v4.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (126 commits)
MIPS: do away with ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIB
gpio: zevio: make it explicitly non-modular
gpio: timberdale: make it explicitly non-modular
gpio: stmpe: make it explicitly non-modular
gpio: sodaville: make it explicitly non-modular
pinctrl: sh-pfc: Let gpio_chip.to_irq() return zero on error
gpio: dwapb: Add ACPI device ID for DWAPB GPIO controller on X-Gene platforms
gpio: dt-bindings: add wd,mbl-gpio bindings
gpio: of: make it possible to name GPIO lines
gpio: make gpiod_to_irq() return negative for NO_IRQ
gpio: xgene: implement .get_direction()
gpio: xgene: Enable ACPI support for X-Gene GFC GPIO driver
gpio: tegra: Implement gpio_get_direction callback
gpio: set up initial state from .get_direction()
gpio: rename gpio-generic.c into gpio-mmio.c
gpio: generic: fix GPIO_GENERIC_PLATFORM is set to module case
gpio: dwapb: add gpio-signaled acpi event support
gpio: dwapb: convert device node to fwnode
gpio: dwapb: remove name from dwapb_port_property
gpio/qoriq: select IRQ_DOMAIN
...
This changes the driver to use the devm_ version
of thermal_zone_of_sensor_register and cleans
up the local points and unregister calls.
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Jens Thiele <karme@karme.de>
Cc: linux-input@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
This patch fix spelling typos in printk from various part
of the codes.
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
If using IRQF_TRIGGER_FALLING, then there is a race here: if the reset
completes before we enable the IRQ, then CHG is already low and touch
will be broken.
This has been seen on Chromebook Pixel 2.
A workaround is to reconfig T18 COMMSCONFIG to enable the RETRIGEN bit
using mxt-app:
mxt-app -W -T18 44
mxt-app --backup
Tested-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
A wrong decoding of the touch coordinate message causes a wrong touch
ID. Touch ID for dual touch must be 0 or 1.
According to the actual Neonode nine byte touch coordinate coding,
the state is transported in the lower nibble and the touch ID in
the higher nibble of payload byte five.
Signed-off-by: Knut Wohlrab <Knut.Wohlrab@de.bosch.com>
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
In Cygnus SOC touch screen controller registers are shared with ADC and
flex timer. Using readl/writel could lead to race condition. So touch
screen driver is enhanced to support register access using syscon framework
API's to take care of mutually exclusive access.
Signed-off-by: Raveendra Padasalagi <raveendra.padasalagi@broadcom.com>
Reviewed-by: Ray Jui <ray.jui@broadcom.com>
Reviewed-by: Scott Branden <scott.branden@broadcom.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Instead of doing the dance with macro that either resolves to a pointer or
NULL, let's switch to using SIMPLE_DEV_PM_OPS().
Also let's mark suspend and resume methods as __maybe_unused instead of
guarding them with an #ifdef and rely on linker to drop unused code. Doing
so should allow better compile coverage.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This makes the driver use the data pointer added to the gpio_chip
to store a pointer to the state container instead of relying on
container_of().
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Pull more input updates from Dmitry Torokhov:
"Second round of updates for the input subsystem.
The BYD PS/2 protocol driver now uses absolute reporting mode and
should behave more like other touchpads; Synaptics driver needed to
extend one of its quirks to a newer firmware version, and a few USB
drivers got tightened up checks for the contents of their descriptors"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: sur40 - fix DMA on stack
Input: ati_remote2 - fix crashes on detecting device with invalid descriptor
Input: synaptics - handle spurious release of trackstick buttons, again
Input: synaptics-rmi4 - remove check of Non-NULL array
Input: byd - enable absolute mode
Input: ims-pcu - sanity check against missing interfaces
Input: melfas_mip4 - add hw_version sysfs attribute
During the initialisation the driver uses a buffer on the stack for DMA.
That violates the cache coherency rules. The fix is to allocate the buffer
with kmalloc().
Signed-off-by: Oliver Neukum <ONeukum@suse.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
- Freescale Touch Screen ADC
- X-Powers AXP PMIC with RSB
- TI TPS65086 Power Management IC (PMIC)
- New Device Support
- Supply device PCI IDs for Intel Broxton
- Fix-ups
- Move to clkdev_create() API; intel_quark_i2c_gpio
- Complete re-write of TI's TPS65912 Power Management IC (PMIC)
- Remove unnecessary function argument; axp20x
- Separate out bus related code; axp20x
- Coding Style changes; axp20x
- Allow more drivers to be compiled as modules
- Work around false positive 'used uninitialised' warning; db8500-prcmu
- Bug Fixes
- Remove do_div(); fsl-imx25-gcq
- Fix driver init when built-in; tps65010
- Fix clock-unregister leak; intel-lpss
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Merge tag 'mfd-for-linus-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"New Drivers:
- Freescale Touch Screen ADC
- X-Powers AXP PMIC with RSB
- TI TPS65086 Power Management IC (PMIC)
New Device Support:
- Supply device PCI IDs for Intel Broxton
Fix-ups:
- Move to clkdev_create() API; intel_quark_i2c_gpio
- Complete re-write of TI's TPS65912 Power Management IC (PMIC)
- Remove unnecessary function argument; axp20x
- Separate out bus related code; axp20x
- Coding Style changes; axp20x
- Allow more drivers to be compiled as modules
- Work around false positive 'used uninitialised' warning; db8500-prcmu
Bug Fixes:
- Remove do_div(); fsl-imx25-gcq
- Fix driver init when built-in; tps65010
- Fix clock-unregister leak; intel-lpss"
* tag 'mfd-for-linus-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (53 commits)
mfd: intel-lpss: Pass I2C configuration via properties on BXT
mfd: imx6sx: Add PCIe register definitions for iomuxc gpr
mfd: ipaq-micro: Use __maybe_unused to hide pm functions
mfd: max77686: Add max77802 to I2C device ID table
mfd: max77686: Export OF module alias information
mfd: max77686: Allow driver to be built as a module
mfd: stmpe: Add the proper PWM resources
mfd: tps65090: Set regmap config reg counts properly
mfd: syscon: Return ENOTSUPP instead of ENOSYS when disabled
mfd: as3711: Set regmap config reg counts properly
mfd: rc5t583: Set regmap config reg counts properly
gpio: tps65086: Add GPO driver for the TPS65086 PMIC
mfd: mt6397: Add platform device ID table
mfd: da9063: Fix missing volatile registers in the core regmap_range volatile lists
mfd: mt6397: Add MT6323 support to MT6397 driver
mfd: mt6397: Add support for different Slave types
mfd: mt6397: int_con and int_status may vary in location
dt-bindings: mfd: Add bindings for the MediaTek MT6323 PMIC
mfd: da9062: Fix missing volatile registers in the core regmap_range volatile lists
mfd: Add documentation for ACT8945A DT bindings
...
Pull input updates from Dmitry Torokhov:
"The most notable item is addition of support for Synaptics RMI4
protocol which is native protocol for all current Synaptics devices
(touchscreens, touchpads). In later releases we'll switch devices
using HID and PS/2 protocol emulation to RMI4.
You will also get:
- BYD PS/2 touchpad protocol support for psmouse
- MELFAS MIP4 Touchscreen driver
- rotary encoder was moved away from legacy platform data and to
generic device properties API, devm_* API, and can now handle
encoders using more than 2 GPIOs
- Cypress touchpad driver was switched to devm_* API and device
properties
- other assorted driver fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (40 commits)
ARM: pxa/raumfeld: use PROPERTY_ENTRY_INTEGER to define props
Input: synaptics-rmi4 - using logical instead of bitwise AND
Input: powermate - fix oops with malicious USB descriptors
Input: snvs_pwrkey - fix returned value check of syscon_regmap_lookup_by_phandle()
MAINTAINERS: add devicetree bindings to Input Drivers section
Input: synaptics-rmi4 - add device tree support to the SPI transport driver
Input: synaptics-rmi4 - add SPI transport driver
Input: synaptics-rmi4 - add support for F30
Input: synaptics-rmi4 - add support for F12
Input: synaptics-rmi4 - add device tree support for 2d sensors and F11
Input: synaptics-rmi4 - add support for 2D sensors and F11
Input: synaptics-rmi4 - add device tree support for RMI4 I2C devices
Input: synaptics-rmi4 - add I2C transport driver
Input: synaptics-rmi4 - add support for Synaptics RMI4 devices
Input: ad7879 - add device tree support
Input: ad7879 - fix default x/y axis assignment
Input: ad7879 - move header to platform_data directory
Input: ts4800 - add hardware dependency
Input: cyapa - fix for losing events during device power transitions
Input: sh_keysc - remove dependency on SUPERH
...
Pull trivial tree updates from Jiri Kosina.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial:
drivers/rtc: broken link fix
drm/i915 Fix typos in i915_gem_fence.c
Docs: fix missing word in REPORTING-BUGS
lib+mm: fix few spelling mistakes
MAINTAINERS: add git URL for APM driver
treewide: Fix typo in printk
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Merge tag 'v4.5' into next
Merge with Linux 4.5 to get PROPERTY_ENTRY_INTEGER() that is needed to
fix pxa/raumfeld rotary encoder properties.
Add device tree support for the I2C and SPI variant of AD7879(-1).
This allows to specify the touchscreen controller as a I2C client
node or SPI slave device. Most of the options available in platform
data are also available as device tree properties, the only exception
being GPIO capabilities, which can not be activated through device
tree currently.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The X/Y position measurements read from the controller are interpreted
wrong. The first measurement X+ contains the Y position, and the second
measurement Y+ the X position (see also Table 11 Register Table in the
data sheet).
The problem is already known and a swap option has been introduced:
commit 6680884a44 ("Input: ad7879 - add option to correct xy axis")
However, the meaning of the new boolean is inverted since the underlying
values are already swapped. Let ts->swap_xy set to true actually be the
swapped configuration of the two axis.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The header file is used by the SPI and I2C variant of the driver.
Therefore, move it to a more generic place under platform_data.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The Technologic Systems TS-4800 is an i.MX515 board, so its drivers
are useless unless building a SOC_IMX51 kernel, except for build
testing purposes.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Bring in updates to roraty encoder driver switching it away from legacy
platform data and over to generic device properties and adding support
for encoders using more than 2 GPIOs.
Add support for retrieving device resolution (pixels per mm) from firmware
and using it when setting up input device.
Signed-off-by: Sangwon Jee <jeesw@melfas.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
commit e4b88e1989
"Input: stmpe-ts - enforce device tree only mode"
removed platform data but accidentally stripped away useful
kerneldoc, so reintroduce it.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This is an input driver for MELFAS MIP4 Touchscreen devices, such as
MMS400, MMS500, MCS8000, MIT200, MIT300, MIT400, MFS10. All devices
implementing MIP4 protocol (MELFAS Interface Protocol Version 4) should
be supported by this driver.
Signed-off-by: Sangwon Jee <jeesw@melfas.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This patch fix spelling typos found in printk and Kconfig.
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This is a driver for the imx25 ADC/TSC module. It controls the
touchscreen conversion queue and creates a touchscreen input device.
The driver currently only supports 4 wire touchscreens. The driver uses
a simple conversion queue of precharge, touch detection, X measurement,
Y measurement, precharge and another touch detection.
This driver uses the regmap from the parent to setup some touch specific
settings in the core driver and setup a idle configuration with touch
detection.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Denis Carikli <denis@eukrea.com>
[fix clock's period calculation]
[fix calculation of the 'settling' value]
Signed-off-by: Juergen Borleis <jbe@pengutronix.de>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
drivers/input/touchscreen/colibri-vf50-ts.c: In function ‘vf50_ts_probe’:
drivers/input/touchscreen/colibri-vf50-ts.c:302: error: implicit declaration of function ‘of_property_read_u32’
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
A recent patch broke parsing the gain, offset, and threshold parameters
from device tree. Instead of setting the cached values and writing them
to the correct registers during probe, it would write the values from DT
into the register address variables and never write them to the chip
during normal operation.
Fixes: 2e23b7a963 ("Input: edt-ft5x06 - use generic properties API")
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The GPIO subsystem provides dummy GPIO consumer functions if GPIOLIB is
not enabled. Hence drivers that depend on GPIOLIB, but use GPIO consumer
functionality only, can still be compiled if GPIOLIB is not enabled.
If COMPILE_TEST is enabled, relax the dependency on GPIOLIB for the
recently introduced or relaxed symbols TOUCHSCREEN_GOODIX and
TOUCHSCREEN_COLIBRI_VF50.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Since we removed support for calling an init() callback from
the platform data, introduce a function which initializes
the chip by performing a hard reset, using the reset gpio
defined in the device properties.
Signed-off-by: Oreste Salerno <oreste.salerno@tomtom.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Drop support for platform data passed via a C-structure and switch to
device properties instead, which should make the driver compatible
with all platforms: OF, ACPI and static boards. Static boards should
use property sets to communicate device parameters to the driver.
Signed-off-by: Oreste Salerno <oreste.salerno@tomtom.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull more input updates from Dmitry Torokhov:
"The second round of updates for the input subsystem, mainly changes to
xpad driver to better hanlde Xbox One controllers"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: gpio-keys - allow disabling individual buttons in DT
Input: gpio-keys - allow setting input device name in DT
Input: xpad - correct xbox one pad device name
Input: atmel_mxt_ts - improve touchscreen size/orientation handling
Input: xpad - use LED API when identifying wireless controllers
Input: xpad - workaround dead irq_out after suspend/ resume
Input: xpad - update Xbox One Force Feedback Support
Input: xpad - correctly handle concurrent LED and FF requests
Input: xpad - handle "present" and "gone" correctly
Input: xpad - remove spurious events of wireless xpad 360 controller
This branch is the culmination of 5 years of effort to bring the ARMv6
and ARMv7 platforms together such that they can all be enabled and
boot the same kernel. It has been a tremendous amount of cleanup and
refactoring by a huge number of people, and creation of several new
(and major) subsystems to better abstract out all the platform details
in an appropriate manner.
The bulk of this branch is a large patchset from Arnd that brings several
of the more minor and older platforms we have closer to multiplatform
support. Among these are MMP, S3C64xx, Orion5x, mv78xx0 and realview
Much of this is moving around header files from old mach directories,
but there are also some cleanup patches of debug_ll (lowlevel debug
per-platform options) and other parts.
Linus Walleij also has some patchs to clean up the older ARM Realview
platforms by finally introducing DT support, and Rob Herring has some
for ARM Versatile which is now DT-only. Both of these platforms are
now multiplatform.
Finally, a couple of patches from Russell for Dove PMU, and a fix from
Valentin Rothberg for Exynos ADC, which were rebased on top of the
series to avoid conflicts.
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Merge tag 'armsoc-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC multiplatform code updates from Arnd Bergmann:
"This branch is the culmination of 5 years of effort to bring the ARMv6
and ARMv7 platforms together such that they can all be enabled and
boot the same kernel. It has been a tremendous amount of cleanup and
refactoring by a huge number of people, and creation of several new
(and major) subsystems to better abstract out all the platform details
in an appropriate manner.
The bulk of this branch is a large patchset from Arnd that brings
several of the more minor and older platforms we have closer to
multiplatform support. Among these are MMP, S3C64xx, Orion5x, mv78xx0
and realview Much of this is moving around header files from old mach
directories, but there are also some cleanup patches of debug_ll
(lowlevel debug per-platform options) and other parts.
Linus Walleij also has some patchs to clean up the older ARM Realview
platforms by finally introducing DT support, and Rob Herring has some
for ARM Versatile which is now DT-only. Both of these platforms are
now multiplatform.
Finally, a couple of patches from Russell for Dove PMU, and a fix from
Valentin Rothberg for Exynos ADC, which were rebased on top of the
series to avoid conflicts"
* tag 'armsoc-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (75 commits)
ARM: realview: don't select SMP_ON_UP for UP builds
ARM: s3c: simplify s3c_irqwake_{e,}intallow definition
ARM: s3c64xx: fix pm-debug compilation
iio: exynos-adc: fix irqf_oneshot.cocci warnings
ARM: realview: build realview-dt SMP support only when used
ARM: realview: select apropriate targets
ARM: realview: clean up header files
ARM: realview: make all header files local
ARM: no longer make CPU targets visible separately
ARM: integrator: use explicit core module options
ARM: realview: enable multiplatform
ARM: make default platform work for NOMMU
ARM: debug-ll: move DEBUG_LL_UART_EFM32 to correct Kconfig location
ARM: defconfig: use correct debug_ll settings
ARM: versatile: convert to multi-platform
ARM: versatile: merge mach code into a single file
ARM: versatile: switch to DT only booting and remove legacy code
ARM: versatile: add DT based PCI detection
ARM: pxa: mark ezx structures as __maybe_unused
ARM: pxa: mark raumfeld init functions as __maybe_unused
...
Infrastructural changes:
- In struct gpio_chip, rename the .dev node to .parent to better reflect
the fact that this is not the GPIO struct device abstraction. We will
add that soon so this would be totallt confusing.
- It was noted that the driver .get_value() callbacks was
sometimes reporting negative -ERR values to the gpiolib core, expecting
them to be propagated to consumer gpiod_get_value() and gpio_get_value()
calls. This was not happening, so as there was a mess of drivers
returning negative errors and some returning "anything else than zero"
to indicate that a line was active. As some would have bit 31 set to
indicate "line active" it clashed with negative error codes. This is
fixed by the largeish series clamping values in all drivers with
!!value to [0,1] and then augmenting the code to propagate error codes
to consumers. (Includes some ACKed patches in other subsystems.)
- Add a void *data pointer to struct gpio_chip. The container_of() design
pattern is indeed very nice, but we want to reform the struct gpio_chip
to be a non-volative, stateless business, and keep states internal to
the gpiolib to be able to hold on to the state when adding a proper
userspace ABI (character device) further down the road. To achieve this,
drivers need a handle at the internal state that is not dependent on
their struct gpio_chip() so we add gpiochip_add_data() and
gpiochip_get_data() following the pattern of many other subsystems.
All the "use gpiochip data pointer" patches transforms drivers to this
scheme.
- The Generic GPIO chip header has been merged into the general
<linux/gpio/driver.h> header, and the custom header for that removed.
Instead of having a separate mm_gpio_chip struct for these generic
drivers, merge that into struct gpio_chip, simplifying the code and
removing the need for separate and confusing includes.
Misc improvements:
- Stabilize the way GPIOs are looked up from the ACPI legacy
specification.
- Incremental driver features for PXA, PCA953X, Lantiq (patches from the
OpenWRT community), RCAR, Zynq, PL061, 104-idi-48
New drivers:
- Add a GPIO chip to the ALSA SoC AC97 driver.
- Add a new Broadcom NSP SoC driver (this lands in the pinctrl dir, but
the branch is merged here too to account for infrastructural changes).
- The sx150x driver now supports the sx1502.
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Merge tag 'gpio-v4.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO updates from Linus Walleij:
"Here is the bulk of GPIO changes for v4.5.
Notably there are big refactorings mostly by myself, aimed at getting
the gpio_chip into a shape that makes me believe I can proceed to
preserve state for a proper userspace ABI (character device) that has
already been proposed once, but resulted in the feedback that I need
to go back and restructure stuff. So I've been restructuring stuff.
On the way I ran into brokenness (return code from the get_value()
callback) and had to fix it. Also, refactored generic GPIO to be
simpler.
Some of that is still waiting to trickle down from the subsystems all
over the kernel that provide random gpio_chips, I've touched every
single GPIO driver in the kernel now, oh man I didn't know I was
responsible for so much...
Apart from that we're churning along as usual.
I took some effort to test and retest so it should merge nicely and we
shook out a couple of bugs in -next.
Infrastructural changes:
- In struct gpio_chip, rename the .dev node to .parent to better
reflect the fact that this is not the GPIO struct device
abstraction. We will add that soon so this would be totallt
confusing.
- It was noted that the driver .get_value() callbacks was sometimes
reporting negative -ERR values to the gpiolib core, expecting them
to be propagated to consumer gpiod_get_value() and gpio_get_value()
calls. This was not happening, so as there was a mess of drivers
returning negative errors and some returning "anything else than
zero" to indicate that a line was active. As some would have bit
31 set to indicate "line active" it clashed with negative error
codes. This is fixed by the largeish series clamping values in all
drivers with !!value to [0,1] and then augmenting the code to
propagate error codes to consumers. (Includes some ACKed patches
in other subsystems.)
- Add a void *data pointer to struct gpio_chip. The container_of()
design pattern is indeed very nice, but we want to reform the
struct gpio_chip to be a non-volative, stateless business, and keep
states internal to the gpiolib to be able to hold on to the state
when adding a proper userspace ABI (character device) further down
the road. To achieve this, drivers need a handle at the internal
state that is not dependent on their struct gpio_chip() so we add
gpiochip_add_data() and gpiochip_get_data() following the pattern
of many other subsystems. All the "use gpiochip data pointer"
patches transforms drivers to this scheme.
- The Generic GPIO chip header has been merged into the general
<linux/gpio/driver.h> header, and the custom header for that
removed. Instead of having a separate mm_gpio_chip struct for
these generic drivers, merge that into struct gpio_chip,
simplifying the code and removing the need for separate and
confusing includes.
Misc improvements:
- Stabilize the way GPIOs are looked up from the ACPI legacy
specification.
- Incremental driver features for PXA, PCA953X, Lantiq (patches from
the OpenWRT community), RCAR, Zynq, PL061, 104-idi-48
New drivers:
- Add a GPIO chip to the ALSA SoC AC97 driver.
- Add a new Broadcom NSP SoC driver (this lands in the pinctrl dir,
but the branch is merged here too to account for infrastructural
changes).
- The sx150x driver now supports the sx1502"
* tag 'gpio-v4.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (220 commits)
gpio: generic: make bgpio_pdata always visible
gpiolib: fix chip order in gpio list
gpio: mpc8xxx: Do not use gpiochip_get_data() in mpc8xxx_gpio_save_regs()
gpio: mm-lantiq: Do not use gpiochip_get_data() in ltq_mm_save_regs()
gpio: brcmstb: Allow building driver for BMIPS_GENERIC
gpio: brcmstb: Set endian flags for big-endian MIPS
gpio: moxart: fix build regression
gpio: xilinx: Do not use gpiochip_get_data() in xgpio_save_regs()
leds: pca9532: use gpiochip data pointer
leds: tca6507: use gpiochip data pointer
hid: cp2112: use gpiochip data pointer
bcma: gpio: use gpiochip data pointer
avr32: gpio: use gpiochip data pointer
video: fbdev: via: use gpiochip data pointer
gpio: pch: Optimize pch_gpio_get()
Revert "pinctrl: lantiq: Implement gpio_chip.to_irq"
pinctrl: nsp-gpio: use gpiochip data pointer
pinctrl: vt8500-wmt: use gpiochip data pointer
pinctrl: exynos5440: use gpiochip data pointer
pinctrl: at91-pio4: use gpiochip data pointer
...
Pull input updates from Dmitry Torokhov:
- new driver for eGalaxTouch serial touchscreen
- new driver for TS-4800 touchscreen
- an update for Goodix touchscreen driver
- PS/2 mouse module was reworked to limit number of protocols we try on
pass-through ports to speed up their detection time
- wacom_w8001 touchscreen driver now reports pen and touch via separate
instances of input devices
- other driver changes
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (42 commits)
Input: elantech - mark protocols v2 and v3 as semi-mt
Input: wacom_w8001 - drop use of ABS_MT_TOOL_TYPE
Input: gpio-keys - fix check for disabling unsupported keys
Input: omap-keypad - remove dead check
Input: ti_am335x_tsc - fix HWPEN interrupt handling
Input: omap-keypad - set tasklet data earlier
Input: rohm_bu21023 - fix handling of retrying firmware update
Input: ALPS - report v3 pinnacle trackstick device only if is present
Input: ALPS - detect trackstick presence for v7 protocol
Input: pcap_ts - use to_delayed_work
Input: bma150 - constify bma150_cfg structure
Input: i8042 - add Fujitsu Lifebook U745 to the nomux list
Input: egalax_ts_serial - fix potential NULL dereference on error
Input: uinput - sanity check on ff_effects_max and EV_FF
Input: uinput - rework ABS validation
Input: uinput - add new UINPUT_DEV_SETUP and UI_ABS_SETUP ioctl
Input: goodix - use "inverted_[xy]" flags instead of "rotated_screen"
Input: goodix - add axis swapping and axis inversion support
Input: goodix - use goodix_i2c_write_u8 instead of i2c_master_send
Input: goodix - add power management support
...
Both T100 and T9 handle range and orientation in a similar fashion.
Reduce duplication between the two implementations.
Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* patchwork: (204 commits)
[media] rc: sunxi-cir: Initialize the spinlock properly
[media] rtl2832: do not filter out slave TS null packets
[media] rtl2832: print reg number on error case
[media] rtl28xxu: return demod reg page from driver cache
[media] coda: enable MPEG-2 ES decoding
[media] coda: don't start streaming without queued buffers
[media] coda: hook up vidioc_prepare_buf
[media] coda: relax coda_jpeg_check_buffer for trailing bytes
[media] coda: make to_coda_video_device static
[media] s5p-mfc: remove volatile attribute from MFC register addresses
[media] s5p-mfc: merge together s5p_mfc_hw_call and s5p_mfc_hw_call_void
[media] s5p-mfc: use spinlock to protect MFC context
[media] s5p-mfc: remove unnecessary callbacks
[media] s5p-mfc: make queue cleanup code common
[media] s5p-mfc: use one implementation of s5p_mfc_get_new_ctx
[media] s5p-mfc: constify s5p_mfc_codec_ops structures
[media] au8522: Avoid memory leak for device config data
[media] ir-lirc-codec.c: don't leak lirc->drv-rbuf
[media] uvcvideo: small cleanup in uvc_video_clock_update()
[media] uvcvideo: Fix reading the current exposure value of UVC
...
As of e0361b7017 ("Input: wacom_w8001 - split the touch and pen devices
into two devices") the touch events aren't multiplexed over the same device
anymore, the use of ABS_MT_TOOL_TYPE is superfluous. And even before then
it only ever sent MT_TOOL_TYPE_FINGER anyway.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Remove write to REG_IRQCLR and REG_IRQWAKEUP in interrupt handler for
IRQENB_HW_PEN as the resume handler should and does clear REG_IRQWAKEUP.
IRQENB_HW_PEN bit is set in irqclr so that all interrupts get cleared
later so let IRQENB_HW_PEN be cleared by that.
Without this patch wakeup events from TSC_ADC do not work because pending
interrupts in TSC_ADC were causing HW_PEN interrupt, needed for wake from
suspend modes, to get disabled immediately by IRQ handler after being
enabled and preventing wake from happening.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Because of the wrong condition we'd never retry firmware update.
Acked-by: Yoichi Yuasa <yuasa@linux-mips.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Use to_delayed_work() instead of open-coding it.
Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
We didn't check input_allocate_device() for failures so it could lead to
a NULL deref.
Fixes: 6b0f8f9c52 ('Input: add eGalaxTouch serial touchscreen driver')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
When sending "SLEEP" command to the controller it ceases scanning
completely and is unable to wake the system up from sleep, so if it is
configured as a wakeup source we should simply configure interrupt for
wakeup and rely on idle logic within the controller to reduce power
consumption while it is not used.
Signed-off-by: James Chen <james.chen@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Move timestamp from struct vb2_v4l2_buffer to struct vb2_buffer
for common use, and change its type to u64 in order to handling
y2038 problem. This patch also includes all device drivers' changes related to
this restructuring.
Signed-off-by: Junghak Sung <jh1009.sung@samsung.com>
Signed-off-by: Geunyoung Kim <nenggun.kim@samsung.com>
Acked-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The queue_setup callback has a void pointer that is just for V4L2
and is the pointer to the v4l2_format struct that was passed to
VIDIOC_CREATE_BUFS. The idea was that drivers would use the information
from that struct to buffers suitable for the requested format.
After the vb2 split series this pointer is now a void pointer,
which is ugly, and the reality is that all existing drivers will
effectively just look at the sizeimage field of v4l2_format.
To make this more generic the queue_setup callback is changed:
the void pointer is dropped, instead if the *num_planes argument
is 0, then use the current format size, if it is non-zero, then
it contains the number of requested planes and the sizes array
contains the requested sizes. If either is unsupported, then return
-EINVAL, otherwise use the requested size(s).
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The goodix touchscreen driver uses a "rotated_screen" flag for
systems on which the touchscreen is mounted rotated by 180
degrees with respect to the display. With the addition of
support for the dt properties "touchscreen-inverted-x" and
"touchscreen-inverted-y", a separate "rotated_screen" flag
is not necessary anymore. This patch replaces it by setting
the inverted_x and inverted_y flags instead.
Signed-off-by: Karsten Merker <merker@debian.org>
Reviewed-by: Irina Tirdea <irina.tirdea@intel.com>
Tested-by: Bastien Nocera <hadess@hadess.net>
Acked-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Implement support for the following device-tree and ACPI 5.1 DSD
properties in the goodix touchscreen driver:
- touchscreen-inverted-x: X axis is inverted (boolean)
- touchscreen-inverted-y: Y axis is inverted (boolean)
- touchscreen-swapped-x-y: X and Y axis are swapped (boolean)
These are necessary on tablets which have a display in portrait
format while the touchscreen is in landscape format, such as e.g.
the MSI Primo 81.
Signed-off-by: Karsten Merker <merker@debian.org>
Tested-by: Bastien Nocera <hadess@hadess.net>
Tested-by: Irina Tirdea <irina.tirdea@intel.com> (with ACPI DSD properties)
Tested-by: Aleksei Mamlin <mamlinav@gmail.com> (with device-tree properties)
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Implement suspend/resume for goodix driver.
The suspend and resume process uses the gpio pins. If the device ACPI/DT
information does not declare gpio pins, suspend/resume will not be
available for these devices.
This is based on Goodix datasheets for GT911 and GT9271 and on Goodix
driver gt9xx.c for Android (publicly available in Android kernel trees for
various devices).
Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Tested-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Goodix devices can be configured by writing custom data to the device at
init. The configuration data is read with request_firmware from
"goodix_<id>_cfg.bin", where <id> is the product id read from the device
(e.g.: goodix_911_cfg.bin for Goodix GT911, goodix_9271_cfg.bin for
GT9271).
The configuration information has a specific format described in the Goodix
datasheet. It includes X/Y resolution, maximum supported touch points,
interrupt flags, various sensitivity factors and settings for advanced
features (like gesture recognition).
Before writing the firmware, it is necessary to reset the device. If
the device ACPI/DT information does not declare gpio pins (needed for
reset), writing the firmware will not be available for these devices.
This is based on Goodix datasheets for GT911 and GT9271 and on Goodix
driver gt9xx.c for Android (publicly available in Android kernel
trees for various devices).
Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Tested-by: Bastien Nocera <hadess@hadess.net>
Tested-by: Aleksei Mamlin <mamlinav@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
After power on, it is recommended that the driver resets the device.
The reset procedure timing is described in the datasheet and is used
at device init (before writing device configuration) and
for power management. It is a sequence of setting the interrupt
and reset pins high/low at specific timing intervals. This procedure
also includes setting the slave address to the one specified in the
ACPI/device tree.
This is based on Goodix datasheets for GT911 and GT9271 and on Goodix
driver gt9xx.c for Android (publicly available in Android kernel
trees for various devices).
For reset the driver needs to control the interrupt and
reset gpio pins (configured through ACPI/device tree). For devices
that do not have the gpio pins properly declared, the functionality
depending on these pins will not be available, but the device can still
be used with basic functionality.
For both device tree and ACPI, the interrupt gpio pin configuration is
read from the "irq-gpios" property and the reset pin configuration is
read from the "reset-gpios" property. For ACPI 5.1, named properties
can be specified using the _DSD section. This functionality will not be
available for devices that use indexed gpio pins declared in the _CRS
section (we need to provide backward compatibility with devices
that do not support using the interrupt gpio pin as output).
For ACPI, the pins can be specified using ACPI 5.1:
Device (STAC)
{
Name (_HID, "GDIX1001")
...
Method (_CRS, 0, Serialized)
{
Name (RBUF, ResourceTemplate ()
{
I2cSerialBus (0x0014, ControllerInitiated, 0x00061A80,
AddressingMode7Bit, "\\I2C0",
0x00, ResourceConsumer, ,
)
GpioInt (Edge, ActiveHigh, Exclusive, PullNone, 0x0000,
"\\I2C0", 0x00, ResourceConsumer, ,
)
{ // Pin list
0
}
GpioIo (Exclusive, PullDown, 0x0000, 0x0000,
IoRestrictionOutputOnly, "\\I2C0", 0x00,
ResourceConsumer, ,
)
{
1
}
})
Return (RBUF)
}
Name (_DSD, Package ()
{
ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
Package ()
{
Package (2) {"irq-gpios", Package() {^STAC, 0, 0, 0 }},
Package (2) {"reset-gpios", Package() {^STAC, 1, 0, 0 }},
...
}
}
Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Bastien Nocera <hadess@hadess.net>
Tested-by: Bastien Nocera <hadess@hadess.net>
Tested-by: Aleksei Mamlin <mamlinav@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Each of the Goodix devices supported by this driver has a fixed size for
the configuration information registers. The size varies depending on the
device and is specified in the datasheet.
Use the proper configuration length as specified in the datasheet for
each device model, so we do not read more than the actual size of the
configuration registers.
Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Acked-by: Bastien Nocera <hadess@hadess.net>
Tested-by: Bastien Nocera <hadess@hadess.net>
Tested-by: Aleksei Mamlin <mamlinav@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
On this board, the touchscreen, an ads7843, is not handled directly by
Linux but by a companion FPGA. This FPGA is memory-mapped and the IP
design is very similar to the mk712.
This commit adds the support for this IP.
Signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
There are two EETI touchscreen drivers in the kernel (eeti_ts and
egalax_ts) but both are for I2C-connected panels. This is for a different,
serial and not multi-touch touchscreen panel. The protocol documentation is
at http://www.eeti.com.tw/pdf/Software%20Programming%20Guide_v2.0.pdf
Signed-off-by: Böszörményi Zoltán <zboszor@pr.hu>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The Atmel maxtouch DT binding documents that the compatible string for
the device is "atmel,maxtouch" and the I2C core always reports a module
alias of the form i2c:alias where alias is the compatible string model:
$ grep MODALIAS /sys/devices/platform/12e00000.i2c/i2c-8/8-004b/uevent
MODALIAS=i2c:maxtouch
But there isn't maxtouch entry in the I2C device ID table so when the
i2c:maxtouch MODALIAS uevent is reported, kmod is not able to match the
alias with a module to load:
$ modinfo atmel_mxt_ts | grep alias
alias: of:N*T*Catmel,maxtouch
alias: i2c:mXT224
alias: i2c:atmel_mxt_tp
alias: i2c:atmel_mxt_ts
alias: i2c:qt602240_ts
So add the maxtouch entry to the I2C device ID table to allow the module
to be autoloaded when the device is registered via OF.
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
On some devices the wake and enable pins of the pixcir touchscreen
controller are connected to gpios and these must be controlled by the
driver for the device to operate properly.
Signed-off-by: Sander Vermin <sander@vermin.nl>
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>
These devices have a pen device and a touch device through the same serial
protocol, split it up into two separate devices like we do for USB Wacom
tablets too.
Userspace already matches on the device name so we can't drop it
completely. Compose the same basename based on capabilities and append the
tool type, leading to a name like "Wacom Serial Penabled 2FG Touchscreen
Pen".
Note that this drops BTN_TOOL_FINGER, it is not needed once the tools
are split out (and a touch device with BTN_TOOL_FINGER is interpreted
as touchpad by most of userspace).
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This is preparation work for splitting it up for two event nodes.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
If a device failed at the pen setup and gets a zero reply from the touch
device, we need to return an error. Otherwise we have a device with
nothing but a name and the EV_KEY and EV_ABS bits.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Apparently people are installing generic Linux distributions not only on
Pixels but also on other Chromebooks. Unfortunately on all of them Atmel
parts assigned names ATML0000 and ATML0001, and do not carry any other
configuration data. So let's create generic instance of platform data that
should cover most of them (we assume that they will not be using T100
objects, since with those Google mapped BTN_LEFT onto a different GPIO, so
slightly different keymap would be needed, but I think we used parts with
T100 on ARM devices where we thankfully have DTS and can describe the
devices better).
Tested-by: Rich K <rgkirch@gmail.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
S3C_ADC is only available on machines that don't do ARCH_MULTIPLATFORM,
so changing the 'select' into 'depends on' here helps us move to
ARCH_MULTIPLATFORM without introducing regressions.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
The name .dev in a struct is normally reserved for a struct device
that is let us say a superclass to the thing described by the struct.
struct gpio_chip stands out by confusingly using a struct device *dev
to point to the parent device (such as a platform_device) that
represents the hardware. As we want to give gpio_chip:s real devices,
this is not working. We need to rename this member to parent.
This was done by two coccinelle scripts, I guess it is possible to
combine them into one, but I don't know such stuff. They look like
this:
@@
struct gpio_chip *var;
@@
-var->dev
+var->parent
and:
@@
struct gpio_chip var;
@@
-var.dev
+var.parent
and:
@@
struct bgpio_chip *var;
@@
-var->gc.dev
+var->gc.parent
Plus a few instances of bgpio that I couldn't figure out how
to teach Coccinelle to rewrite.
This patch hits all over the place, but I *strongly* prefer this
solution to any piecemal approaches that just exercise patch
mechanics all over the place. It mainly hits drivers/gpio and
drivers/pinctrl which is my own backyard anyway.
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: Rafał Miłecki <zajec5@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Alek Du <alek.du@intel.com>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Acked-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Pull more input updates from Dmitry Torokhov:
"An update to the tsc2005 driver that allows it to also support tsc2004
(basically the same controller, but uses i2c instead of spi bus), and
a couple of bug fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: parkbd - drop bogus __init from parkbd_allocate_serio()
Input: elantech - add Fujitsu Lifebook U745 to force crc_enabled
Input: tsc2004 - add support for tsc2004
Input: tsc200x-core - rename functions and variables
Input: tsc2005 - separate SPI and core functions
Pull input updates from Dmitry Torokhov:
"Items of note:
- evdev users can now limit or mask the kind of events they will
receive. This will allow applications such as power manager or
network manager to only be woken when user presses special keys
such as KEY_POWER or KEY_WIFI and not be bothered with ordinary
key presses coming from keyboard
- support for FocalTech FT6236 touchscreen controller
- support for ROHM BU21023/24 touchscreen controller
- edt-ft5x06 touchscreen driver got a face lift and can now be used
with FT5506
- support for Google Fiber TV Box remote controls
- improvements in xpad driver (with more to come)
- several parport-based drivers have been switched to the new device
model
- other miscellaneous driver improvements"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (70 commits)
HID: hid-gfrm: avoid warning for input_configured API change
HID: hid-input: allow input_configured callback return errors
Input: evdev - fix bug in checking duplicate clock change request
Input: add userio module
Input: evdev - add event-mask API
Input: snvs_pwrkey - remove duplicated semicolon
HID: hid-gfrm: Google Fiber TV Box remote controls
Input: e3x0-button - update Kconfig description
Input: tegra-kbc - drop use of IRQF_NO_SUSPEND flag
Input: tegra-kbc - enable support for the standard "wakeup-source" property
Input: xen - check return value of xenbus_printf
Input: hp_sdc_rtc - fix y2038 problem in proc_show
Input: nomadik-ske-keypad - fix a trivial typo
Input: xpad - fix clash of presence handling with LED setting
Input: edt-ft5x06 - work around FT5506 firmware bug
Input: edt-ft5x06 - add support for FT5506
Input: edt-ft5x06 - add support for different max support points
Input: edt-ft5x06 - use max support points to determine how much to read
Input: rotary-encoder - add support for quarter-period mode
Input: rotary-encoder - use of_property_read_bool
...
Quite a lot of activity in SPI this cycle, almost all of it in drivers
with a few minor improvements and tweaks in the core.
- Updates to pxa2xx to support Intel Broxton and multiple chip selects.
- Support for big endian in the bcm63xx driver.
- Multiple slave support for the mt8173
- New driver for the auxiliary SPI controller in bcm2835 SoCs.
- Support for Layerscale SoCs in the Freescale DSPI driver.
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Merge tag 'spi-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"Quite a lot of activity in SPI this cycle, almost all of it in drivers
with a few minor improvements and tweaks in the core.
- Updates to pxa2xx to support Intel Broxton and multiple chip selects.
- Support for big endian in the bcm63xx driver.
- Multiple slave support for the mt8173
- New driver for the auxiliary SPI controller in bcm2835 SoCs.
- Support for Layerscale SoCs in the Freescale DSPI driver"
* tag 'spi-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (87 commits)
spi: pxa2xx: Rework self-initiated platform data creation for non-ACPI
spi: pxa2xx: Add support for Intel Broxton
spi: pxa2xx: Detect number of enabled Intel LPSS SPI chip select signals
spi: pxa2xx: Add output control for multiple Intel LPSS chip selects
spi: pxa2xx: Use LPSS prefix for defines that are Intel LPSS specific
spi: Add DSPI support for layerscape family
spi: ti-qspi: improve ->remove() callback
spi/spi-xilinx: Fix race condition on last word read
spi: Drop owner assignment from spi_drivers
spi: Add THIS_MODULE to spi_driver in SPI core
spi: Setup the master controller driver before setting the chipselect
spi: dw: replace magic constant by DW_SPI_DR
spi: mediatek: mt8173 spi multiple devices support
spi: mediatek: handle controller_data in mtk_spi_setup
spi: mediatek: remove mtk_spi_config
spi: mediatek: Update document devicetree bindings to support multiple devices
spi: fix kernel-doc warnings about missing return desc in spi.c
spi: fix kernel-doc warnings about missing return desc in spi.h
spi: pxa2xx: Align a few defines
spi: pxa2xx: Save other reg_cs_ctrl bits when configuring chip select
...
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Merge tag 'media/v4.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
"Media updates, including:
- Lots of improvements at the kABI documentation
- Split of Videobuf2 into a common part and a V4L2 specific one
- Split of the VB2 tracing events into a separate header file
- s5p-mfc got support for Exynos 5433
- v4l2 fixes for 64-bits alignment when running 32 bits userspace
on ARM
- Added support for SDR radio transmitter at core, vivid and hackrf
drivers
- Some y2038 fixups
- Some improvements at V4L2 colorspace support
- saa7164 converted to use the V4L2 core control framework
- several new boards additions, cleanups and fixups
PS: There are two patches for scripts/kernel-doc that are needed by
the documentation patches on Media. Jon is OK on merging those via
my tree"
* tag 'media/v4.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (146 commits)
[media] c8sectpfe: Remove select on CONFIG_FW_LOADER_USER_HELPER_FALLBACK
[media] DocBook media: update copyright/version numbers
[media] ivtv: Convert to get_user_pages_unlocked()
[media] media/v4l2-ctrls: fix setting autocluster to manual with VIDIOC_S_CTRL
[media] DocBook media: Fix a typo in encoder cmd
[media] DocBook: add SDR specific info to G_MODULATOR / S_MODULATOR
[media] DocBook: add SDR specific info to G_TUNER / S_TUNER
[media] hackrf: do not set human readable name for formats
[media] hackrf: add support for transmitter
[media] hackrf: switch to single function which configures everything
[media] hackrf: add control for RF amplifier
[media] DocBook: add modulator type field
[media] v4l: add type field to v4l2_modulator struct
[media] DocBook: document SDR transmitter
[media] v4l2: add support for SDR transmitter
[media] DocBook: document tuner RF gain control
[media] v4l2: add RF gain control
[media] v4l2: rename V4L2_TUNER_ADC to V4L2_TUNER_SDR
[media] media/vivid-osd: fix info leak in ioctl
[media] media: videobuf2: Move v4l2-specific stuff to videobuf2-v4l2
...
This adds support for the i2c based tsc2004 touchscreen controller.
Signed-off-by: Michael Welling <mwelling@ieee.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The functions, variables, and defines of the new tsc200x-core.c are
renamed to tsc200x instead of tsc2005 avoid possible confusion.
Signed-off-by: Michael Welling <mwelling@ieee.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This patch separates the SPI functionality from core functionality
that overlaps with the tsc2004.
Prepares kernel for new tsc2004 driver without much redundant code.
Signed-off-by: Michael Welling <mwelling@ieee.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Wolfram Sang