Commit Graph

4976 Commits

Author SHA1 Message Date
Linus Torvalds 49dc2b7173 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
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
2016-03-17 21:38:27 -07:00
Benjamin Tissoires 82be788c96 Input: synaptics - handle spurious release of trackstick buttons, again
Looks like the fimware 8.2 still has the extra buttons spurious release
bug.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=114321
Cc: stable@vger.kernel.org
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-17 17:15:57 -07:00
Andrew Duggan a1376d3de4 Input: synaptics-rmi4 - remove check of Non-NULL array
Originally the irq_mask member of rmi_function was a pointer. Then it was
switched to being a zero length array. However, the checks for a NULL
pointer where not removed.

Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-17 17:15:56 -07:00
Richard Pospesel 2d5f5611dd Input: byd - enable absolute mode
The Windows driver's settings dialog contains a visualization of the
regions for the hardware edge scrolling capability, which uses a
temporarily-enabled limited-resolution absolute mode.

This patch enables this during normal operation, and combines the
absolute packets with the existing relative packets to provide
accurate absolute position and touch reporting.

It also adds documentation for all known gesture packets and
initialization commands.

Reviewed-by: Chris Diamand <chris@diamand.org>
Signed-off-by: Richard Pospesel <pospeselr@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-17 17:04:54 -07:00
Oliver Neukum a0ad220c96 Input: ims-pcu - sanity check against missing interfaces
A malicious device missing interface can make the driver oops.
Add sanity checking.

Signed-off-by: Oliver Neukum <ONeukum@suse.com>
CC: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-17 14:16:57 -07:00
Sangwon Jee 9aa40426a4 Input: melfas_mip4 - add hw_version sysfs attribute
Add hw_version sysfs attribute for retrieving hardware information
from firmware.

Signed-off-by: Sangwon Jee <jeesw@melfas.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-16 16:25:41 -07:00
Dmitry Torokhov 245f0db0de Linux 4.5
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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.
2016-03-15 16:54:45 -07:00
Dan Carpenter 24672bdfb3 Input: synaptics-rmi4 - using logical instead of bitwise AND
There is a typo so we have && instead of &.

Fixes: ff8f83708b ('Input: synaptics-rmi4 - add support for 2D sensors and F11')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Andrew Duggan <aduggan@synaptics.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-15 16:54:22 -07:00
Josh Boyer 9c6ba45671 Input: powermate - fix oops with malicious USB descriptors
The powermate driver expects at least one valid USB endpoint in its
probe function.  If given malicious descriptors that specify 0 for
the number of endpoints, it will crash.  Validate the number of
endpoints on the interface before using them.

The full report for this issue can be found here:
http://seclists.org/bugtraq/2016/Mar/85

Reported-by: Ralf Spenneberg <ralf@spenneberg.net>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-14 09:36:49 -07:00
Vladimir Zapolskiy 9979c1c707 Input: snvs_pwrkey - fix returned value check of syscon_regmap_lookup_by_phandle()
On error syscon_regmap_lookup_by_phandle() returns ERR_PTR() value,
which makes a check for NULL invalid and may lead to oops on error
path.

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-11 17:53:17 -08:00
Dmitry Torokhov 62d5bdf972 Merge branch 'synaptics-rmi4' into next
Bring in support for devices using Synaptics RMI4 protocol, including
RMI4 bus, 2D sensor and button handlers, and SPI and I2C interface
drivers.
2016-03-11 09:51:25 -08:00
Andrew Duggan 48147b9768 Input: synaptics-rmi4 - add device tree support to the SPI transport driver
Add devicetree binding for SPI devices.

Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Acked-by: Rob Herring <robh@kernel.org>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-10 16:04:25 -08:00
Andrew Duggan 8d99758dee Input: synaptics-rmi4 - add SPI transport driver
Add the transport driver for devices using RMI4 over SPI.

Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-10 16:04:24 -08:00
Andrew Duggan 562b42d3ee Input: synaptics-rmi4 - add support for F30
RMI4 F30 supports input from clickpad buttons and controls LEDs located
on the touchpad PCB. This patch adds support of the clickpad buttons and
defers supporting LEDs for the future.

Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-10 16:04:23 -08:00
Andrew Duggan b43d2c1e93 Input: synaptics-rmi4 - add support for F12
Function 12 implements 2D touch position sensor for newer Synaptics touch
devices. It replaces F11 and no device will contain both functions.

Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Signed-off-by: Christopher Heiny <cheiny@synaptics.com>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-10 16:04:06 -08:00
Andrew Duggan aaa27982b3 Input: synaptics-rmi4 - add device tree support for 2d sensors and F11
2D sensors have several parameter which can be set in the platform data.
This patch adds support for getting those values from devicetree.

Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-10 16:04:05 -08:00
Andrew Duggan ff8f83708b Input: synaptics-rmi4 - add support for 2D sensors and F11
RMI4 currently defines two functions for reporting data for 2D sensors
(F11 and F12). This patch adds the common functionality which is shared
by devices with 2D reporting along with implementing functionality for
F11.

Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Signed-off-by: Christopher Heiny <cheiny@synaptics.com>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-10 16:04:03 -08:00
Andrew Duggan d8a8b3edfd Input: synaptics-rmi4 - add device tree support for RMI4 I2C devices
Add devicetree binding for I2C devices and add bindings for optional
parameters in the function drivers. Parameters for function drivers are
defined in child nodes for each of the functions.

Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Acked-by: Rob Herring <robh@kernel.org>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-10 16:02:41 -08:00
Andrew Duggan fdf51604f1 Input: synaptics-rmi4 - add I2C transport driver
Add the transport driver for devices using RMI4 over I2C.

Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Signed-off-by: Christopher Heiny <cheiny@synaptics.com>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-10 16:02:40 -08:00
Andrew Duggan 2b6a321da9 Input: synaptics-rmi4 - add support for Synaptics RMI4 devices
Synaptics uses the Register Mapped Interface (RMI) protocol as a
communications interface for their devices. This driver adds the core
functionality needed to interface with RMI4 devices.

RMI devices can be connected to the host via several transport protocols
and can supports a wide variety of functionality defined by RMI functions.
Support for transport protocols and RMI functions are implemented in
individual drivers. The RMI4 core driver uses a bus architecture to
facilitate the various combinations of transport and function drivers
needed by a particular device.

Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Signed-off-by: Christopher Heiny <cheiny@synaptics.com>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-10 16:02:39 -08:00
Stefan Agner fa6e3ca274 Input: ad7879 - add device tree support
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>
2016-03-08 10:51:18 -08:00
Stefan Agner 5f2940c4a5 Input: ad7879 - fix default x/y axis assignment
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>
2016-03-08 10:51:12 -08:00
Stefan Agner 4774f40093 Input: ad7879 - move header to platform_data directory
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>
2016-03-08 10:51:10 -08:00
Jean Delvare cd1480ae4d Input: ts4800 - add hardware dependency
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>
2016-03-04 12:04:07 -08:00
Dmitry Torokhov 52cdce8adb Merge branch 'rotary-encoder' into next
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.
2016-03-04 11:32:40 -08:00
Dudley Du 3cd4786943 Input: cyapa - fix for losing events during device power transitions
When changing the scan rate as part of runtime-resume process we may lose
some of the events, because:

1) for gen3 trackpads, the driver must msleep() some time to ensure that
the device is ready to accept next command;

2) for gen5 and later trackpads, the queue dumping function will simply
ignore the events when waiting for the set power mode command response.

The solution is to keep polling and report those valid events when the set
power mode command is in progress.

Signed-off-by: Dudley Du <dudl@cypress.com>
Tested-by: Jeremiah Mahler <jmmahler@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-04 11:32:13 -08:00
Simon Horman 5186b8c41a Input: sh_keysc - remove dependency on SUPERH
A dependency on ARCH_SHMOBILE seems to be the best option for sh_keysc:

* For Super H based SoCs: sh_keysc is used on SH_MIGOR, SH_ECOVEC, SH_KFR2R09,
  SH_7722_SOLUTION_ENGINE, and SH_7724_SOLUTION_ENGINE, which depend on
  either CPU_SUBTYPE_SH7722 or CPU_SUBTYPE_SH7724, and both select
  ARCH_SHMOBILE.

* For ARM Based SoCs: Since the removal of legacy (non-multiplatform) support
  this driver has not been used by any Renesas ARM based SoCs. The Renesas
  ARM based SoCs currently select ARCH_SHMOBILE, however, it is planned
  that this will no longer be the case.

This is part of an ongoing process to migrate from ARCH_SHMOBILE to
ARCH_RENESAS the motivation for which being that RENESAS seems to be a more
appropriate name than SHMOBILE for the majority of Renesas ARM based SoCs.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-04 11:32:12 -08:00
Sangwon Jee 7a3ed686f9 Input: melfas_mip4 - add resolution reporting
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>
2016-03-04 11:32:11 -08:00
Uwe Kleine-König 7dde4e7474 Input: rotary-encoder - support more than 2 gpios as input
This changes how the used gpios are stored (i.e. a struct gpio_descs
instead of two struct gpio_desc) and as with >2 gpios the states are
numbered differently the function rotary_encoder_get_state returns
unencoded numbers instead of grey encoded numbers before. The latter has
some implications on how the returned value is used and so the change is
bigger than one might expect at first.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-02 15:48:05 -08:00
Dmitry Torokhov a9e340dce3 Input: rotary_encoder - move away from platform data structure
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: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-02 15:48:05 -08:00
Linus Walleij 564a68de8e Input: stmpe-ts - restore kerneldoc
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>
2016-03-02 09:40:20 -08:00
Arnd Bergmann 2d1a792357 Input: snvs_pwrkey - use __maybe_unused to hide pm functions
The SNVS power key driver has suspend/resume functions that
are accessed using SIMPLE_DEV_PM_OPS, which hide the reference
when CONFIG_PM_SLEEP is not set, resulting in a warning about
unused functions:

drivers/input/keyboard/snvs_pwrkey.c:183:12: error: 'imx_snvs_pwrkey_suspend' defined but not used [-Werror=unused-function]
drivers/input/keyboard/snvs_pwrkey.c:194:12: error: 'imx_snvs_pwrkey_resume' defined but not used [-Werror=unused-function]

This adds __maybe_unused annotations to let the compiler know
it can silently drop the function definition.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-02 09:40:04 -08:00
Arnd Bergmann 7ffae9909b Input: spear-keyboard - use __maybe_unused to hide pm functions
The spear keyboard driver uses #ifdef CONFIG_PM to hide its
power management functions, but then uses references from
SIMPLE_DEV_PM_OPS that are only present if both CONFIG_PM
and CONFIG_PM_SLEEP are set, resulting in a warning about unused
functions:

drivers/input/keyboard/spear-keyboard.c:292:12: error: 'spear_kbd_suspend' defined but not used [-Werror=unused-function]
drivers/input/keyboard/spear-keyboard.c:345:12: error: 'spear_kbd_resume' defined but not used [-Werror=unused-function]

This removes the #ifdef and instead uses a __maybe_unused
annotation.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-02 09:40:03 -08:00
Jason Hu 0581ce09fd Input: goldfish_events - enable ACPI-based enumeration for goldfish events
Add ACPI binding to the goldfish events driver.

Signed-off-by: Jason Hu <jia-cheng.hu@intel.com>
Signed-off-by: Jin Qian <jinqian@android.com>
Signed-off-by: Alan <alan@linux.intel.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-02 09:39:00 -08:00
Greg Hackmann 8c5dc5a1ad Input: goldfish_events - add devicetree bindings
Add device tree bindings to the Goldfish virtual platform event driver.

Signed-off-by: Greg Hackmann <ghackmann@google.com>
Signed-off-by: Jin Qian <jinqian@android.com>
Signed-off-by: Alan <alan@linux.intel.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-02 09:38:54 -08:00
Dmitry Torokhov 8631580f4f Input: rotary_encoder - use input_set_capability()
Instead of manipulating capability bits directly let's use appropriate
helpers. Also there is no need to explicitly set EV_ABS when calling
input_set_abs_params().

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-02 09:32:07 -08:00
Dmitry Torokhov 77a8f0ad38 Input: rotary_encoder - convert to use gpiod API
Instead of using old GPIO API, let's switch to GPIOD API, which
automatically handles polarity.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-02 09:31:49 -08:00
Dmitry Torokhov 6a6f70b386 Input: rotary_encoder - mark PM methods as __maybe_unused
Instead of guarding PM methods with #ifdef let's mark them as
__maybe_unused as it allows for better compile coverage.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-02 09:30:07 -08:00
Timo Teräs dee520e368 Input: rotary_encoder - use threaded irqs
Convert to use threaded IRQs to support GPIOs that can sleep.
Protect the irq handler with mutex as it can be triggered from
two different irq lines accessing the same state.

This allows using GPIO expanders behind I2C or SPI bus.

Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-02 09:30:06 -08:00
Sangwon Jee 6ccb1d8f78 Input: add MELFAS MIP4 Touchscreen driver
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>
2016-02-17 11:16:12 -08:00
Masanari Iida fc4fa6e112 treewide: Fix typo in printk
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>
2016-02-15 11:18:22 +01:00
Markus Pargmann 4f7ed234f2 Input: touchscreen: Add imx25 TCQ driver
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>
2016-02-11 15:40:42 +00:00
Linus Torvalds 74c7b2af37 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
 "Just small driver fixups"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: colibri-vf50-ts - add missing #include <linux/of.h>
  Input: adp5589 - fix row 5 handling for adp5589
  Input: edt-ft5x06 - fix setting gain, offset, and threshold via device tree
  Input: vmmouse - fix absolute device registration
  Input: serio - drop warnings in case of EPROBE_DEFER from serio_find_driver()
  Input: cap11xx - add missing of_node_put
  Input: sirfsoc-onkey - allow modular build
  Input: xpad - remove unused function
2016-02-10 12:21:57 -08:00
Geert Uytterhoeven ff84dabe3c Input: colibri-vf50-ts - add missing #include <linux/of.h>
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>
2016-02-09 15:36:22 -08:00
Lars-Peter Clausen 7008dafb02 Input: adp5589 - fix row 5 handling for adp5589
The adp5589 has row 5, don't skip it when creating the GPIO mapping.
Otherwise the pin gets reserved as used and it is not possible to use it as
a GPIO.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-02-09 15:36:21 -08:00
Philipp Zabel dc262dfaae Input: edt-ft5x06 - fix setting gain, offset, and threshold via device tree
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>
2016-02-09 15:36:20 -08:00
Geert Uytterhoeven 1261d013da Input: Allow compile test of Goodix and Colibri VF50 if !GPIOLIB
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>
2016-02-09 15:18:48 -08:00
Chris Diamand 98ee377144 Input: byd - add BYD PS/2 touchpad driver
Driver for the BYD BTP10463 touchpad, found in PC Specialist `Lafite'
laptops. This patch sends the magic command sequence which causes the
touchpad to stream intellimouse-style packets.

Gestures are detected inside the touchpad, and exposed as special
values in the Z component of each packet - absolute coordinates are
not supported, even in the Windows driver. At present, this supports
two-finger vertical and horizontal scrolling, and provides the
framework to expose the other gestures it can recognize.

Signed-off-by: Chris Diamand <chris@diamand.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-01-27 17:27:25 -08:00
Dmitry Torokhov d4f1b06d68 Input: vmmouse - fix absolute device registration
We should set device's capabilities first, and then register it,
otherwise various handlers already present in the kernel will not be
able to connect to the device.

Reported-by: Lauri Kasanen <cand@gmx.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-01-27 16:03:30 -08:00
Grygorii Strashko 015bb5e134 Input: serio - drop warnings in case of EPROBE_DEFER from serio_find_driver()
Now serio_find_driver() will print warnings in case device_attach()
returns -EPROBE_DEFER. Those warnings are obsolete, in genral, because:
- DD core can report the same if required
- since commit 013c074f86 ("PM / sleep: prohibit devices probing
during suspend/hibernation") the devices probing is prohibited during
System suspend and deferred device will be carefully reprobed once
Resume is finished.

Hence, drop warnings in case of EPROBE_DEFER from serio_find_driver().

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-01-27 15:56:24 -08:00
Amitoj Kaur Chawla 497e1b3f6b Input: cap11xx - add missing of_node_put
for_each_child_of_node performs an of_node_get on each iteration, so
to break out of the loop an of_node_put is required.

Found using Coccinelle.

Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-01-27 15:55:48 -08:00
Arnd Bergmann af6e94634d Input: sirfsoc-onkey - allow modular build
CONFIG_INPUT may itself be a loadable module, but the sirf power key
driver is listed as 'bool', which makes it possible to select
a broken configuration with the driver built-in but the subsystem
not loaded. In this configuration, we get a link error:

drivers/input/built-in.o: In function `sirfsoc_pwrc_isr':
drivers/input/misc/sirfsoc-onkey.c:63: undefined reference to `input_event'
drivers/input/built-in.o: In function `sirfsoc_pwrc_isr':
include/linux/input.h:414: undefined reference to `input_event'
drivers/input/built-in.o: In function `sirfsoc_pwrc_probe':
drivers/input/misc/sirfsoc-onkey.c:132: undefined reference to `devm_input_allocate_device'
drivers/input/misc/sirfsoc-onkey.c:139: undefined reference to `input_set_capability'
drivers/input/misc/sirfsoc-onkey.c:161: undefined reference to `input_register_device'
drivers/input/built-in.o: In function `sirfsoc_pwrc_report_event':
drivers/input/misc/sirfsoc-onkey.c:48: undefined reference to `input_event'
drivers/input/built-in.o: In function `sirfsoc_pwrc_report_event':
include/linux/input.h:414: undefined reference to `input_event'
drivers/input/built-in.o:(.debug_addr+0x24): undefined reference to `input_event'
drivers/input/built-in.o:(.debug_addr+0xbc): undefined reference to `devm_input_allocate_device'
drivers/input/built-in.o:(.debug_addr+0x104): undefined reference to `input_set_capability'
drivers/input/built-in.o:(.debug_addr+0x128): undefined reference to `input_register_device'

This marks the driver as 'tristate' so it becomes possible to have
it in a loadable module, mainly to help with randconfig builds.

We also have to add a missing semicolon here, which ended up not
being needed in built-in mode because the following MODULE_DEVICE_TABLE
is an empty macro followed by another semicolon then.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-01-27 15:55:14 -08:00
Arnd Bergmann a6ed4a18ba Input: xpad - remove unused function
There are two definitions of xpad_identify_controller(), one is used
when CONFIG_JOYSTICK_XPAD_LEDS is set, but the other one is empty
and never used, and we get a gcc warning about it:

drivers/input/joystick/xpad.c:1210:13: warning: 'xpad_identify_controller' defined but not used [-Wunused-function]

This removes the second definition.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: cae705baa4 ("Input: xpad - re-send LED command on present event")
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-01-27 15:55:06 -08:00
Oreste Salerno 8fb81d2001 Input: cyttsp - perform hard reset of the chip during probe
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>
2016-01-27 14:32:49 -08:00
Oreste Salerno 707b61bba8 Input: cyttsp - switch to using device properties
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>
2016-01-27 14:32:48 -08:00
Oreste Salerno 69a124029b Input: cyttsp - check return value of input_mt_init_slots
Signed-off-by: Oreste Salerno <oreste.salerno@tomtom.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-01-27 14:32:47 -08:00
Oreste Salerno e4cf92ba44 Input: cyttsp - use devres managed resource allocations
Use devm_() functions for allocating memory, input device and IRQ.

Signed-off-by: Oreste Salerno <oreste.salerno@tomtom.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-01-27 14:32:46 -08:00
Linus Torvalds 5430dfe90d Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
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
2016-01-22 17:20:30 -08:00
Dmitry Torokhov b26a95d435 Merge branch 'next' into for-linus
Prepare second round of input updates for 4.5 merge window.
2016-01-21 17:27:27 -08:00
Linus Torvalds 6b5a12dbca ARM: SoC multiplatform code changes for v4.5
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
  ...
2016-01-20 18:03:56 -08:00
Timo Teräs d9202af2ff Input: rotary_encoder - convert to devm-* api
Use managed resource API for simplifying error paths.

Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-01-18 09:17:27 -08:00
Linus Torvalds 58cf279aca GPIO bulk updates for the v4.5 kernel cycle:
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
  ...
2016-01-17 12:32:01 -08:00
Linus Torvalds 1c5ff2ab7b Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
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
  ...
2016-01-13 11:14:05 -08:00
Linus Torvalds 4c257ec37b char/misc patches for 4.5-rc1
Here's the big set of char/misc patches for 4.5-rc1.
 
 Nothing major, lots of different driver subsystem updates, full details
 in the shortlog.  All of these have been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc updates from Greg KH:
 "Here's the big set of char/misc patches for 4.5-rc1.

  Nothing major, lots of different driver subsystem updates, full
  details in the shortlog.  All of these have been in linux-next for a
  while"

* tag 'char-misc-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (71 commits)
  mei: fix fasync return value on error
  parport: avoid assignment in if
  parport: remove unneeded space
  parport: change style of NULL comparison
  parport: remove unnecessary out of memory message
  parport: remove braces
  parport: quoted strings should not be split
  parport: code indent should use tabs
  parport: fix coding style
  parport: EXPORT_SYMBOL should follow function
  parport: remove trailing white space
  parport: fix a trivial typo
  coresight: Fix a typo in Kconfig
  coresight: checking for NULL string in coresight_name_match()
  Drivers: hv: vmbus: Treat Fibre Channel devices as performance critical
  Drivers: hv: utils: fix hvt_op_poll() return value on transport destroy
  Drivers: hv: vmbus: fix the building warning with hyperv-keyboard
  extcon: add Maxim MAX3355 driver
  Drivers: hv: ring_buffer: eliminate hv_ringbuffer_peek()
  Drivers: hv: remove code duplication between vmbus_recvpacket()/vmbus_recvpacket_raw()
  ...
2016-01-13 10:23:36 -08:00
Laxman Dewangan 809d9516da Input: gpio-keys - allow disabling individual buttons in DT
Add support to disable buttons from DT via status property if given button
is not supported on given platforms. This will help re-using existing dtsi
files across multiple platforms.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-01-13 00:18:06 -08:00
Laxman Dewangan c4dc5f8c95 Input: gpio-keys - allow setting input device name in DT
Allow specifying name if input device via device tree property. This helps
userspace code to get name and perform proper event to key mapping in some
cases (for example, on Android).

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-01-13 00:18:05 -08:00
Dmitry Torokhov 85c017f2f1 Merge branch 'xpad' into next
Bring in update to xpad driver improves support of Xbox One and wireless
controllers and fixes handling of concurrent requests to force feedback
and LEDs.
2016-01-12 16:29:13 -08:00
Pavel Rojtberg 95162dc849 Input: xpad - correct xbox one pad device name
Apparently the Covert Forces ID is not Covert Forces pad exclusive, but
rather denotes a new firmware version that can be found on all new
controllers and can be also updated on old hardware using Windows 10.

see: https://github.com/paroj/xpad/issues/19

Signed-off-by: Pavel Rojtberg <rojtberg@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-01-12 16:28:44 -08:00
Nick Dyer 1c0276d567 Input: atmel_mxt_ts - improve touchscreen size/orientation handling
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>
2016-01-11 17:48:57 -08:00
Dmitry Torokhov 009f773836 Merge branch 'next' into for-linus
Prepare first round of input updates for 4.5 merge window.
2016-01-11 17:47:25 -08:00
Benjamin Tissoires 6544a1df11 Input: elantech - mark protocols v2 and v3 as semi-mt
When using a protocol v2 or v3 hardware, elantech uses the function
elantech_report_semi_mt_data() to report data. This devices are rather
creepy because if num_finger is 3, (x2,y2) is (0,0). Yes, only one valid
touch is reported.

Anyway, userspace (libinput) is now confused by these (0,0) touches,
and detect them as palm, and rejects them.

Commit 3c0213d17a ("Input: elantech - fix semi-mt protocol for v3 HW")
was sufficient enough for xf86-input-synaptics and libinput before it has
palm rejection. Now we need to actually tell libinput that this device is
a semi-mt one and it should not rely on the actual values of the 2 touches.

Cc: stable@vger.kernel.org
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-01-11 17:45:32 -08:00
Mauro Carvalho Chehab c3152592e7 Merge branch 'patchwork' into v4l_for_linus
* 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
  ...
2016-01-11 11:13:27 -02:00
Peter Hutterer 5f7e5445a2 Input: wacom_w8001 - drop use of ABS_MT_TOOL_TYPE
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>
2016-01-11 00:12:53 -08:00
Dmitry Torokhov 8679ee4204 Input: gpio-keys - fix check for disabling unsupported keys
Commit 4ea14a53d8 ("Input: gpio-keys - report
error when disabling unsupported key") tried let user know that they
attempted to disable an unsupported key, unfortunately the check is wrong
as it believes that all codes are invalid. Fix it by ensuring that keys
that we try to disable are subset of keys (or switches) that device
reports.

Fixes: 4ea14a53d8 ("Input: gpio-keys - report error when disabling unsupported key")
Reported-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Tested-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-01-10 09:51:56 -08:00
Dmitry Torokhov 35f8679f57 Input: omap-keypad - remove dead check
Commit da1f026b53 ("Keyboard: omap-keypad:
use matrix_keypad.h") switched the driver to use matrix keypad
infrastructure, which made array of keycodes to be unsigned short, and
caused the test for negativity never trigger. This leads to the following
static checker warning:

	drivers/input/keyboard/omap-keypad.c:158 omap_kp_tasklet()
	warn: 'keycodes[]' is never negative.

Given that we did not care about this check for a few years already let's
simply remove it.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-01-07 17:26:23 -08:00
Dave Gerlach 3b7474ec0d Input: ti_am335x_tsc - fix HWPEN interrupt handling
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>
2016-01-07 17:26:22 -08:00
Dan Carpenter 7ae6cfe8d2 Input: omap-keypad - set tasklet data earlier
It feels like we should set the tasklet data before enabling it.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-01-07 09:57:21 -08:00
Dmitry Torokhov 415a249f88 Input: rohm_bu21023 - fix handling of retrying firmware update
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>
2016-01-07 09:57:21 -08:00
Dmitry Torokhov efbc57c0e6 Merge branch 'goodix' into next
Merge several improvements to Goodix touchscreen driver:
- power management support
- configuration upload
- axis swapping and inversion
2016-01-06 17:31:06 -08:00
Pali Rohár 4b1af85364 Input: ALPS - report v3 pinnacle trackstick device only if is present
This patch moves v3 pinnacle code for trackstick detection from
alps_hw_init_v3() to alps_set_protocol() so ALPS_DUALPOINT flag can be
cleared before registering trackstick input device in kernel.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-01-06 16:06:47 -08:00
Pali Rohár dae928ec3c Input: ALPS - detect trackstick presence for v7 protocol
This patch adds detection of trackstick for v7 protocol devices. Code in
this patch is used in official Dell touchpad linux drivers for Dell models:
Dell Latitude E5250/5250, E5450/5450, E5550/5550

Detection code and base reg for alps v3 rushmore and v7 devices is exacly
same.

Also user in bug https://bugzilla.kernel.org/show_bug.cgi?id=94801 reported
that Toshiba Sattellite Z30-A-1DG has only alps v7 touchpad device without
trackstick and kernel reports to userspace also redundant trackstick
device.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Alex Hung <alex.hung@canonical.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-01-06 16:06:46 -08:00
Dmitry Torokhov d9be398afb Input: xpad - use LED API when identifying wireless controllers
When lighting up the segment identifying wireless controller, Instead of
sending command directly to the controller, let's do it via LED API (usinf
led_set_brightness) so that LED object state is in sync with controller
state and we'll light up the correct segment on resume as well.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-01-04 14:35:15 -08:00
Pavel Rojtberg 4220f7db1e Input: xpad - workaround dead irq_out after suspend/ resume
The irq_out urb is dead after suspend/ resume on my x360 wr pad. (also
reproduced by Zachary Lund [0]) Work around this by implementing
suspend, resume, and reset_resume callbacks and properly shutting down
URBs on suspend and restarting them on resume.

[0]: https://github.com/paroj/xpad/issues/6

Signed-off-by: Pavel Rojtberg <rojtberg@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-01-04 14:35:06 -08:00
Pierre-Loup A. Griffais 2a6d7527b3 Input: xpad - update Xbox One Force Feedback Support
There's apparently a serial number woven into both input and output
packets; neglecting to specify a valid serial number causes the controller
to ignore the rumble packets.

The scale of the rumble was also apparently halved in the packets.

The initialization packet had to be changed to allow force feedback to
work.

see https://github.com/paroj/xpad/issues/7 for details.

Signed-off-by: Pavel Rojtberg <rojtberg@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-01-04 11:39:46 -08:00
Pavel Rojtberg 7fc595f4c0 Input: xpad - correctly handle concurrent LED and FF requests
Track the status of the irq_out URB to prevent submission iof new requests
while current one is active. Failure to do so results in the "URB submitted
while active" warning/stack trace.

Store pending brightness and FF effect in the driver structure and replace
it with the latest requests until the device is ready to process next
request. Alternate serving LED vs FF requests to make sure one does not
starve another. See [1] for discussion. Inspired by patch of Sarah Bessmer
[2].

[1]: http://www.spinics.net/lists/linux-input/msg40708.html
[2]: http://www.spinics.net/lists/linux-input/msg31450.html

Signed-off-by: Pavel Rojtberg <rojtberg@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-01-04 11:39:38 -08:00
Geliang Tang fa68e2777c Input: pcap_ts - use to_delayed_work
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>
2016-01-02 21:08:53 -08:00
Julia Lawall 7ed5ff82c2 Input: bma150 - constify bma150_cfg structure
The bma150_cfg structure is never modified, so declare it as const.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-01-02 21:08:52 -08:00
Aurélien Francillon dd0d0d4de5 Input: i8042 - add Fujitsu Lifebook U745 to the nomux list
Without i8042.nomux=1 the Elantech touch pad is not working at all on
a Fujitsu Lifebook U745. This patch does not seem necessary for all
U745 (maybe because of different BIOS versions?). However, it was
verified that the patch does not break those (see opensuse bug 883192:
https://bugzilla.opensuse.org/show_bug.cgi?id=883192).

Signed-off-by: Aurélien Francillon <aurelien@francillon.net>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-01-02 21:03:53 -08:00
Dexuan Cui 2048157ad0 Drivers: hv: vmbus: fix the building warning with hyperv-keyboard
With the recent change af3ff643ea
(Drivers: hv: vmbus: Use uuid_le type consistently), we always get this
warning:

  CC [M]  drivers/input/serio/hyperv-keyboard.o
drivers/input/serio/hyperv-keyboard.c:427:2: warning: missing braces around
	initializer [-Wmissing-braces]
  { HV_KBD_GUID, },
  ^
drivers/input/serio/hyperv-keyboard.c:427:2: warning: (near initialization
	for .id_table[0].guid.b.) [-Wmissing-braces]

The patch fixes the warning.

Signed-off-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-12-21 13:07:56 -08:00
Linus Walleij 0529357f10 Linux 4.4-rc6
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Merge tag 'v4.4-rc6' into devel

Linux 4.4-rc6
2015-12-21 09:36:21 +01:00
Dan Carpenter 8dcb3c7628 Input: egalax_ts_serial - fix potential NULL dereference on error
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>
2015-12-19 23:44:40 -08:00
Linus Torvalds 632f8577d6 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
 "Just a few assorted driver fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: elants_i2c - fix wake-on-touch
  Input: elan_i2c - set input device's vendor and product IDs
  Input: sun4i-lradc-keys - fix typo in binding documentation
  Input: atmel_mxt_ts - add maxtouch to I2C table for module autoload
  Input: arizona-haptic - fix disabling of haptics device
  Input: aiptek - fix crash on detecting device without endpoints
  Input: atmel_mxt_ts - add generic platform data for Chromebooks
  Input: parkbd - clear unused function pointers
  Input: walkera0701 - clear unused function pointers
  Input: turbografx - clear unused function pointers
  Input: gamecon - clear unused function pointers
  Input: db9 - clear unused function pointers
2015-12-19 09:51:11 -08:00
Elias Vanderstuyft daf6cd0c18 Input: uinput - sanity check on ff_effects_max and EV_FF
Currently the user can set ff_effects_max to zero with the EV_FF bit (and
the FF_GAIN and/or FF_AUTOCENTER bits) set, in this case the uninitialized
methods ff->set_gain and/or ff->set_autocenter can be dereferenced,
resulting in a kernel oops.

Check in uinput_create_device() and print a helpful message and return
-EINVAL in case the check fails.

Signed-off-by: Elias Vanderstuyft <elias.vds@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-18 17:48:52 -08:00
David Herrmann fbae10db09 Input: uinput - rework ABS validation
Rework the uinput ABS validation to check passed absinfo data immediately,
but do ABS initialization as last step in UI_DEV_CREATE. The behavior
observed by user-space is not changed, as ABS initialization was never
checked for errors.

With this in place, the order of device initialization and abs
configuration is no longer fixed. Userspace can initialize the device and
afterwards set absinfo just fine.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-18 17:48:51 -08:00
Benjamin Tissoires 052876f8e5 Input: uinput - add new UINPUT_DEV_SETUP and UI_ABS_SETUP ioctl
This adds two new ioctls, UINPUT_DEV_SETUP and UI_ABS_SETUP, that replaces
the old device setup method (by write()'ing "struct uinput_user_dev" to the
node). The old method is not easily extendable and requires huge payloads.
Furthermore, overloading write() without properly versioned objects is
error-prone.

Therefore, we introduce two new ioctls to replace the old method.  These
ioctls support all features of the old method, plus a "resolution" field
for absinfo. Furthermore, it's properly forward-compatible to new ABS codes
and a growing "struct input_absinfo" structure.

UI_ABS_SETUP also allows user-space to skip unknown axes if not set.  There
is no need to copy the whole array temporarily into the kernel, but instead
the caller issues several ioctl where we copy each value manually.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-18 17:48:50 -08:00
James Chen 478e5ed1c3 Input: elants_i2c - fix wake-on-touch
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>
2015-12-18 16:21:43 -08:00
Junghak Sung d6dd645eae [media] media: videobuf2: Move timestamp to vb2_buffer
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>
2015-12-18 13:53:31 -02:00
Hans Verkuil df9ecb0cad [media] vb2: drop v4l2_format argument from queue_setup
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>
2015-12-18 13:48:19 -02:00
Karsten Merker 57c80e8e5d Input: goodix - use "inverted_[xy]" flags instead of "rotated_screen"
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>
2015-12-17 17:11:56 -08:00
Karsten Merker ad48cf5e95 Input: goodix - add axis swapping and axis inversion support
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>
2015-12-17 17:11:55 -08:00
Irina Tirdea 5d655b3546 Input: goodix - use goodix_i2c_write_u8 instead of i2c_master_send
Use goodix_i2c_write_u8 instead of i2c_master_send to simplify code.

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>
2015-12-17 17:11:54 -08:00
Irina Tirdea 5ab09d6a8f Input: goodix - add power management support
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>
2015-12-17 17:11:53 -08:00
Irina Tirdea 68caf85881 Input: goodix - write configuration data to device
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>
2015-12-17 17:11:53 -08:00
Irina Tirdea ec6e1b4082 Input: goodix - reset device at init
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>
2015-12-17 17:11:52 -08:00
Irina Tirdea a779fbc6c9 Input: goodix - use actual config length for each device type
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>
2015-12-17 17:11:51 -08:00
Dmitry Torokhov f01c5e652c Merge branch 'psmouse-passthrough' into next
Bring in changes to limit number of protocols we try on pass-though PS/2
ports so that probe ocmpletes faster.
2015-12-17 15:25:10 -08:00
Dmitry Torokhov 190e2031e2 Input: psmouse - rename ps2pp_init() to ps2pp_detect()
This makes Logitech PS2++ protocol implementation consistent with
the naming in other protocols. Also mark the stub as "static inline"

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Marcin Sochacki <msochacki+kernel@gmail.com>
Tested-by: Till <till2.schaefer@uni-dortmund.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-17 15:24:37 -08:00
Dmitry Torokhov ec6184b1c7 Input: psmouse - limit protocols that we try on passthrough ports
PS/2 protocol is slow, and using it with pass-through port (where we
encapsulate PS/2 into PS/2) is slower yet so it takes quite a bit of time
to do full protocol discovery for device attached to a pass-through port.
However, so far we have not see anything but trackpoints or basic PS/2
mice on pass-through ports, so let's limit protocols that we probe there
to Trackpoint, IntelliMouse Explorer, IntelliMouse, and bare PS/2 protocol,
and avoid other extended protocols, such as Synaptics, ALPS, etc.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Tested-by: Marcin Sochacki <msochacki+kernel@gmail.com>
Tested-by: Till <till2.schaefer@uni-dortmund.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-17 15:24:32 -08:00
Dmitry Torokhov c378b5119e Input: psmouse - factor out common protocol probing code
In preparation of limiting protocols that we try on pass-through ports,
let's rework initialization code and factor common code into
psmouse_try_protocol() that accepts protocol type (instead of detec()
function pointer) and can, for most protocols, perform both detection and
initialization.

Note that this removes option of forcing Lifebook protocol on devices that
are not recognized by lifebook_detect() as having the hardware, but I do
not recall anyone using this option.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Marcin Sochacki <msochacki+kernel@gmail.com>
Tested-by: Till <till2.schaefer@uni-dortmund.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-17 15:24:21 -08:00
Dmitry Torokhov 5fa75cfe23 Input: psmouse - move protocol descriptions around
We move protocol descriptions and psmouse_find_by_type() and
pmouse_find_by_name() so that we can use them without forward declarations
in the subsequent patches.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Tested-by: Marcin Sochacki <msochacki+kernel@gmail.com>
Tested-by: Till <till2.schaefer@uni-dortmund.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-17 15:24:16 -08:00
Dmitry Torokhov 24a06f3e3a Input: psmouse - clean up Cypress probe
When Cypress protocol support is disabled cypress_init() is a stub that
always returns -ENOSYS, so there is not point in testing for
CONFIG_MOUSE_PS2_CYPRESS after we decided that we are dealing with a
Cypress device. Also, we should only be calling cypress_detect() when
set_properties argument is "true", like with other protocols.

There is a slight change in behavior to make follow-up patches more
uniform: when we detect Cypress but its initialization fails, instead of
immediately returning PSMOUSE_PS2 protocol we now continue trying
IntelliMouse [Explorer]. Given that Cypress devices only have issue with
Sentelic probes probing Imtellimouse should be safe.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Marcin Sochacki <msochacki+kernel@gmail.com>
Tested-by: Till <till2.schaefer@uni-dortmund.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-17 15:24:04 -08:00
Dmitry Torokhov 2b6f39e9ee Input: psmouse - rearrange Focaltech init code
The fact that we were calling focaltech_init() even when Focaltech support
is disabled was confusing. Rearrange the code so that if support is
disabled we continue to fall through the rest of protocol probing code
until we get to full reset that Focaltech devices need to work properly.

Also, replace focaltech_init() with a stub now that it is only called when
protocol is enabled.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Tested-by: Marcin Sochacki <msochacki+kernel@gmail.com>
Tested-by: Till <till2.schaefer@uni-dortmund.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-17 15:23:54 -08:00
Dmitry Torokhov ad5307715b Input: psmouse - fix comment style
The module was using non-standard comment style with comment blocks often
starting at the very beginning of a line instead of being aligned with the
code. Let's switch to standard formatting.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Tested-by: Marcin Sochacki <msochacki+kernel@gmail.com>
Tested-by: Till <till2.schaefer@uni-dortmund.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-17 15:23:43 -08:00
Dmitry Torokhov 0a88d60784 Input: psmouse - use switch statement in psmouse_process_byte()
Instead of a series mostly exclusive "if" statements testing protocol type
of the mouse let's use "switch" statement.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Tested-by: Marcin Sochacki <msochacki+kernel@gmail.com>
Tested-by: Till <till2.schaefer@uni-dortmund.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-17 15:23:34 -08:00
Pierre-Loup A. Griffais 09c8b00ae3 Input: xpad - handle "present" and "gone" correctly
Handle the "a new device is present" message properly by dynamically
creating the input device at this point in time. This means we now do not
"preallocate" all 4 devices when a single wireless base station is seen.
This requires a workqueue as we are in interrupt context when we learn
about this.

Also properly disconnect any devices that we are told are removed.

Signed-off-by: "Pierre-Loup A. Griffais" <pgriffais@valvesoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Pavel Rojtberg <rojtberg@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-16 17:11:30 -08:00
Clement Calmels 93a017aa2f Input: xpad - remove spurious events of wireless xpad 360 controller
When powering up a wireless xbox 360 controller, some wrong joystick
events are generated. It is annoying because, for example, it makes
unwanted moves in Steam big picture mode's menu.

When my controller is powering up, this packet is received by the
driver:
00000000: 00 0f 00 f0 00 cc ff cf 8b e0 86 6a 68 f0 00 20  ...........jh..
00000010: 13 e3 20 1d 30 03 40 01 50 01 ff ff              .. .0.@.P...

According to xboxdrv userspace driver source code, this packet is only
dumping a serial id and should not be interpreted as joystick events.
This issue can be easily seen with jstest:
$ jstest --event /dev/input/js0

This patch only adds a way to filter out this "serial" packet and as a
result it removes the spurous events.

Signed-off-by: Clement Calmels <clement.calmels@free.fr>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-16 17:11:29 -08:00
Damien Riegel 40e3be3933 Input: add touchscreen support for TS-4800
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>
2015-12-16 14:00:51 -08:00
Böszörményi Zoltán 6b0f8f9c52 Input: add eGalaxTouch serial touchscreen driver
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>
2015-12-16 11:31:33 -08:00
Charlie Mooney 3eab4588c9 Input: elan_i2c - set input device's vendor and product IDs
Previously the "vendor" and "product" IDs for the elan_i2c driver simply
reported 0000.  This patch modifies the elan_i2c driver to include the
Elan vendor ID and the touchpad's product id under
input/input*/{vendor,product}.

Specifically, this is to allow us to apply a generic Elan gestures config
that will apply to all Elan touchpads on ChromeOS.  These configs  match to
input devices in various ways, but one major way is by matching on vendor
ID.  Adding this patch allows the default Elan touchpad config to be
applied to Elan touchpads in this kernel by matching on devices that have
vendor ID 04f3.

Note that product ID is also available via custom sysfs entry "product_id"
as well.

Signed-off-by: Charlie Mooney <charliemooney@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-15 11:35:55 -08:00
Steve Twiss f889beaaab Input: da9063 - report KEY_POWER instead of KEY_SLEEP during power key-press
Stop reporting KEY_SLEEP for a short key-press and report KEY_POWER instead
This change applies to both DA9063 and DA9062 ONKEY drivers.

A previous application used for testing by the developer required a
KEY_SLEEP and KEY_POWER input_report_key event to distinguish between a
short and long key-press of the power key.  This is not the general
convention and the typical solution is for KEY_POWER to be used in both
cases: suspend and S/W power off.

Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-12 21:05:09 -08:00
Javier Martinez Canillas b7d21058b4 Input: atmel_mxt_ts - add maxtouch to I2C table for module autoload
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>
2015-12-11 13:25:21 -08:00
Sander Vermin bcf5b3deb0 Input: pixcir_i2c - add support for wake and enable gpios
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>
2015-12-04 17:12:07 -08:00
Peter Hutterer e0361b7017 Input: wacom_w8001 - split the touch and pen devices into two devices
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>
2015-12-03 15:58:52 -08:00
Peter Hutterer 5d0a4fe2a9 Input: wacom_w8001 - split pen and touch initialization up
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>
2015-12-03 15:58:52 -08:00
Peter Hutterer e171735410 Input: wacom_w8001 - handle touch error case correctly
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>
2015-12-03 15:58:51 -08:00
Peter Hutterer ec9acda736 Input: wacom_w8001 - set BTN_TOOL_DOUBLETAP if we have 2fg support
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-03 15:58:31 -08:00
Peter Hutterer 86c03f46b9 Input: wacom_w8001 - use __set_bit for evbits
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-03 15:58:31 -08:00
Charles Keepax 1cf44efa1e Input: arizona-haptic - fix disabling of haptics device
A small copy and paste error was preventing the haptics device being
disabled. This patch corrects the value written on disable.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-02 16:22:11 -08:00
Thierry Reding d352c0e1f3 Input: sparcspkr - use platform_register/unregister_drivers()
These new helpers simplify implementing multi-driver modules and
properly handle failure to register one driver by unregistering all
previously registered drivers.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-02 10:02:50 -08:00
Vladis Dronov 8e20cf2bce Input: aiptek - fix crash on detecting device without endpoints
The aiptek driver crashes in aiptek_probe() when a specially crafted USB
device without endpoints is detected. This fix adds a check that the device
has proper configuration expected by the driver. Also an error return value
is changed to more matching one in one of the error paths.

Reported-by: Ralf Spenneberg <ralf@spenneberg.net>
Signed-off-by: Vladis Dronov <vdronov@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-02 09:35:41 -08:00
Dmitry Torokhov c67566c6a1 Input: atmel_mxt_ts - add generic platform data for Chromebooks
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>
2015-12-02 09:35:40 -08:00
Arnd Bergmann 94eb81ad43 Input: s3c2410_ts: fix S3C_ADC dependency
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>
2015-12-01 21:50:23 +01:00
Linus Walleij 58383c7842 gpio: change member .dev to .parent
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>
2015-11-19 09:24:35 +01:00
Sudip Mukherjee 0c6da0733b Input: parkbd - clear unused function pointers
parkbd_parport_cb is a local uninitialized structure and the member
function pointers will be pointing to arbitrary locations unless they
are cleared.

Fixes: 33ca8ab97c ("Input: parkbd - use parallel port device model")
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-11-17 10:00:16 -08:00
Sudip Mukherjee d1f2a031ab Input: walkera0701 - clear unused function pointers
walkera0701_parport_cb is a local uninitialized structure and the member
function pointers will be pointing to arbitrary locations unless they
are cleared.

Fixes: 221bcb24c6 ("Input: walkera0701 - use parallel port device model")
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-11-17 10:00:15 -08:00
Sudip Mukherjee 3855e9e4d3 Input: turbografx - clear unused function pointers
tgfx_parport_cb is a local uninitialized structure and the member
function pointers will be pointing to arbitrary locations unless they
are cleared.

Fixes: 4de27a638a ("Input: turbografx - use parallel port device model")
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-11-17 10:00:14 -08:00
Sudip Mukherjee eb12a5f51f Input: gamecon - clear unused function pointers
gc_parport_cb is a local uninitialized structure and the member
function pointers will be pointing to arbitrary locations unless they
are cleared.

Fixes: a517e87c3d ("Input: gamecon - use parallel port device model")
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-11-17 10:00:13 -08:00
Sudip Mukherjee 42beaccb2a Input: db9 - clear unused function pointers
db9_parport_cb is a local uninitialized structure and the member
function pointers will be pointing to arbitrary locations unless they
are cleared.

Fixes: 2260c419b5 ("Input: db9 - use parallel port device model")
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-11-17 10:00:12 -08:00
Linus Torvalds a30b7ca289 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
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
2015-11-13 21:41:14 -08:00
Dmitry Torokhov bbdb5c22e1 Merge branch 'next' into for-linus
Prepare second round of input updates for 4.3 merge window.
2015-11-13 11:56:45 -08:00
Andrew Morton 79211c8ed1 remove abs64()
Switch everything to the new and more capable implementation of abs().
Mainly to give the new abs() a bit of a workout.

Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-11-09 15:11:24 -08:00
Geert Uytterhoeven 5e0baca8b3 Input: parkbd - drop bogus __init from parkbd_allocate_serio()
WARNING: vmlinux.o(.text+0x1056606): Section mismatch in reference from the function parkbd_attach() to the function .init.text:parkbd_allocate_serio()
The function parkbd_attach() references
the function __init parkbd_allocate_serio().
This is often because parkbd_attach lacks a __init
annotation or the annotation of parkbd_allocate_serio is wrong.

Commit 33ca8ab97c ("Input: parkbd - use parallel port device
model") dropped the __init attribute from the sole caller of
parkbd_allocate_serio(), but forgot to remove it from
parkbd_allocate_serio() itself.

Fixes: 33ca8ab97c ("Input: parkbd - use parallel port device model")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-11-09 09:59:58 -08:00
Linus Torvalds 3e069adabc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
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
  ...
2015-11-06 11:57:41 -08:00
Takashi Iwai 60603950f8 Input: elantech - add Fujitsu Lifebook U745 to force crc_enabled
Another Lifebook machine that needs the same quirk as other similar
models to make the driver working.

Bugzilla: https://bugzilla.opensuse.org/show_bug.cgi?id=883192
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-11-06 11:27:08 -08:00
Linus Torvalds 75f5db39ff spi: Updates for v4.4
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
  ...
2015-11-05 13:15:12 -08:00
Linus Torvalds b037865754 media updates for v4.4-rc1
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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
  ...
2015-11-05 12:05:15 -08:00
Linus Torvalds 0d51ce9ca1 Power management and ACPI updates for v4.4-rc1
- ACPICA update to upstream revision 20150930 (Bob Moore, Lv Zheng).
 
    The most significant change is to allow the AML debugger to be
    built into the kernel.  On top of that there is an update related
    to the NFIT table (the ACPI persistent memory interface)
    and a few fixes and cleanups.
 
  - ACPI CPPC2 (Collaborative Processor Performance Control v2)
    support along with a cpufreq frontend (Ashwin Chaugule).
 
    This can only be enabled on ARM64 at this point.
 
  - New ACPI infrastructure for the early probing of IRQ chips and
    clock sources (Marc Zyngier).
 
  - Support for a new hierarchical properties extension of the ACPI
    _DSD (Device Specific Data) device configuration object allowing
    the kernel to handle hierarchical properties (provided by the
    platform firmware this way) automatically and make them available
    to device drivers via the generic device properties interface
    (Rafael Wysocki).
 
  - Generic device properties API extension to obtain an index of
    certain string value in an array of strings, along the lines of
    of_property_match_string(), but working for all of the supported
    firmware node types, and support for the "dma-names" device
    property based on it (Mika Westerberg).
 
  - ACPI core fix to parse the MADT (Multiple APIC Description Table)
    entries in the order expected by platform firmware (and mandated
    by the specification) to avoid confusion on systems with more than
    255 logical CPUs (Lukasz Anaczkowski).
 
  - Consolidation of the ACPI-based handling of PCI host bridges
    on x86 and ia64 (Jiang Liu).
 
  - ACPI core fixes to ensure that the correct IRQ number is used to
    represent the SCI (System Control Interrupt) in the cases when
    it has been re-mapped (Chen Yu).
 
  - New ACPI backlight quirk for Lenovo IdeaPad S405 (Hans de Goede).
 
  - ACPI EC driver fixes (Lv Zheng).
 
  - Assorted ACPI fixes and cleanups (Dan Carpenter, Insu Yun, Jiri
    Kosina, Rami Rosen, Rasmus Villemoes).
 
  - New mechanism in the PM core allowing drivers to check if the
    platform firmware is going to be involved in the upcoming system
    suspend or if it has been involved in the suspend the system is
    resuming from at the moment (Rafael Wysocki).
 
    This should allow drivers to optimize their suspend/resume
    handling in some cases and the changes include a couple of users
    of it (the i8042 input driver, PCI PM).
 
  - PCI PM fix to prevent runtime-suspended devices with PME enabled
    from being resumed during system suspend even if they aren't
    configured to wake up the system from sleep (Rafael Wysocki).
 
  - New mechanism to report the number of a wakeup IRQ that woke up
    the system from sleep last time (Alexandra Yates).
 
  - Removal of unused interfaces from the generic power domains
    framework and fixes related to latency measurements in that
    code (Ulf Hansson, Daniel Lezcano).
 
  - cpufreq core sysfs interface rework to make it handle CPUs that
    share performance scaling settings (represented by a common
    cpufreq policy object) more symmetrically (Viresh Kumar).
 
    This should help to simplify the CPU offline/online handling among
    other things.
 
  - cpufreq core fixes and cleanups (Viresh Kumar).
 
  - intel_pstate fixes related to the Turbo Activation Ratio (TAR)
    mechanism on client platforms which causes the turbo P-states
    range to vary depending on platform firmware settings (Srinivas
    Pandruvada).
 
  - intel_pstate sysfs interface fix (Prarit Bhargava).
 
  - Assorted cpufreq driver (imx, tegra20, powernv, integrator) fixes
    and cleanups (Bai Ping, Bartlomiej Zolnierkiewicz, Shilpasri G
    Bhat, Luis de Bethencourt).
 
  - cpuidle mvebu driver cleanups (Russell King).
 
  - OPP (Operating Performance Points) framework code reorganization
    to make it more maintainable (Viresh Kumar).
 
  - Intel Broxton support for the RAPL (Running Average Power Limits)
    power capping driver (Amy Wiles).
 
  - Assorted power management code fixes and cleanups (Dan Carpenter,
    Geert Uytterhoeven, Geliang Tang, Luis de Bethencourt, Rasmus
    Villemoes).
 
 /
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Merge tag 'pm+acpi-4.4-rc1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management and ACPI updates from Rafael Wysocki:
 "Quite a new features are included this time.

  First off, the Collaborative Processor Performance Control interface
  (version 2) defined by ACPI will now be supported on ARM64 along with
  a cpufreq frontend for CPU performance scaling.

  Second, ACPI gets a new infrastructure for the early probing of IRQ
  chips and clock sources (along the lines of the existing similar
  mechanism for DT).

  Next, the ACPI core and the generic device properties API will now
  support a recently introduced hierarchical properties extension of the
  _DSD (Device Specific Data) ACPI device configuration object.  If the
  ACPI platform firmware uses that extension to organize device
  properties in a hierarchical way, the kernel will automatically handle
  it and make those properties available to device drivers via the
  generic device properties API.

  It also will be possible to build the ACPICA's AML interpreter
  debugger into the kernel now and use that to diagnose AML-related
  problems more efficiently.  In the future, this should make it
  possible to single-step AML execution and do similar things.
  Interesting stuff, although somewhat experimental at this point.

  Finally, the PM core gets a new mechanism that can be used by device
  drivers to distinguish between suspend-to-RAM (based on platform
  firmware support) and suspend-to-idle (or other variants of system
  suspend the platform firmware is not involved in) and possibly
  optimize their device suspend/resume handling accordingly.

  In addition to that, some existing features are re-organized quite
  substantially.

  First, the ACPI-based handling of PCI host bridges on x86 and ia64 is
  unified and the common code goes into the ACPI core (so as to reduce
  code duplication and eliminate non-essential differences between the
  two architectures in that area).

  Second, the Operating Performance Points (OPP) framework is
  reorganized to make the code easier to find and follow.

  Next, the cpufreq core's sysfs interface is reorganized to get rid of
  the "primary CPU" concept for configurations in which the same
  performance scaling settings are shared between multiple CPUs.

  Finally, some interfaces that aren't necessary any more are dropped
  from the generic power domains framework.

  On top of the above we have some minor extensions, cleanups and bug
  fixes in multiple places, as usual.

  Specifics:

   - ACPICA update to upstream revision 20150930 (Bob Moore, Lv Zheng).

     The most significant change is to allow the AML debugger to be
     built into the kernel.  On top of that there is an update related
     to the NFIT table (the ACPI persistent memory interface) and a few
     fixes and cleanups.

   - ACPI CPPC2 (Collaborative Processor Performance Control v2) support
     along with a cpufreq frontend (Ashwin Chaugule).

     This can only be enabled on ARM64 at this point.

   - New ACPI infrastructure for the early probing of IRQ chips and
     clock sources (Marc Zyngier).

   - Support for a new hierarchical properties extension of the ACPI
     _DSD (Device Specific Data) device configuration object allowing
     the kernel to handle hierarchical properties (provided by the
     platform firmware this way) automatically and make them available
     to device drivers via the generic device properties interface
     (Rafael Wysocki).

   - Generic device properties API extension to obtain an index of
     certain string value in an array of strings, along the lines of
     of_property_match_string(), but working for all of the supported
     firmware node types, and support for the "dma-names" device
     property based on it (Mika Westerberg).

   - ACPI core fix to parse the MADT (Multiple APIC Description Table)
     entries in the order expected by platform firmware (and mandated by
     the specification) to avoid confusion on systems with more than 255
     logical CPUs (Lukasz Anaczkowski).

   - Consolidation of the ACPI-based handling of PCI host bridges on x86
     and ia64 (Jiang Liu).

   - ACPI core fixes to ensure that the correct IRQ number is used to
     represent the SCI (System Control Interrupt) in the cases when it
     has been re-mapped (Chen Yu).

   - New ACPI backlight quirk for Lenovo IdeaPad S405 (Hans de Goede).

   - ACPI EC driver fixes (Lv Zheng).

   - Assorted ACPI fixes and cleanups (Dan Carpenter, Insu Yun, Jiri
     Kosina, Rami Rosen, Rasmus Villemoes).

   - New mechanism in the PM core allowing drivers to check if the
     platform firmware is going to be involved in the upcoming system
     suspend or if it has been involved in the suspend the system is
     resuming from at the moment (Rafael Wysocki).

     This should allow drivers to optimize their suspend/resume handling
     in some cases and the changes include a couple of users of it (the
     i8042 input driver, PCI PM).

   - PCI PM fix to prevent runtime-suspended devices with PME enabled
     from being resumed during system suspend even if they aren't
     configured to wake up the system from sleep (Rafael Wysocki).

   - New mechanism to report the number of a wakeup IRQ that woke up the
     system from sleep last time (Alexandra Yates).

   - Removal of unused interfaces from the generic power domains
     framework and fixes related to latency measurements in that code
     (Ulf Hansson, Daniel Lezcano).

   - cpufreq core sysfs interface rework to make it handle CPUs that
     share performance scaling settings (represented by a common cpufreq
     policy object) more symmetrically (Viresh Kumar).

     This should help to simplify the CPU offline/online handling among
     other things.

   - cpufreq core fixes and cleanups (Viresh Kumar).

   - intel_pstate fixes related to the Turbo Activation Ratio (TAR)
     mechanism on client platforms which causes the turbo P-states range
     to vary depending on platform firmware settings (Srinivas
     Pandruvada).

   - intel_pstate sysfs interface fix (Prarit Bhargava).

   - Assorted cpufreq driver (imx, tegra20, powernv, integrator) fixes
     and cleanups (Bai Ping, Bartlomiej Zolnierkiewicz, Shilpasri G
     Bhat, Luis de Bethencourt).

   - cpuidle mvebu driver cleanups (Russell King).

   - OPP (Operating Performance Points) framework code reorganization to
     make it more maintainable (Viresh Kumar).

   - Intel Broxton support for the RAPL (Running Average Power Limits)
     power capping driver (Amy Wiles).

   - Assorted power management code fixes and cleanups (Dan Carpenter,
     Geert Uytterhoeven, Geliang Tang, Luis de Bethencourt, Rasmus
     Villemoes)"

* tag 'pm+acpi-4.4-rc1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (108 commits)
  cpufreq: postfix policy directory with the first CPU in related_cpus
  cpufreq: create cpu/cpufreq/policyX directories
  cpufreq: remove cpufreq_sysfs_{create|remove}_file()
  cpufreq: create cpu/cpufreq at boot time
  cpufreq: Use cpumask_copy instead of cpumask_or to copy a mask
  cpufreq: ondemand: Drop unnecessary locks from update_sampling_rate()
  PM / Domains: Merge measurements for PM QoS device latencies
  PM / Domains: Don't measure ->start|stop() latency in system PM callbacks
  PM / clk: Fix broken build due to non-matching code and header #ifdefs
  ACPI / Documentation: add copy_dsdt to ACPI format options
  ACPI / sysfs: correctly check failing memory allocation
  ACPI / video: Add a quirk to force native backlight on Lenovo IdeaPad S405
  ACPI / CPPC: Fix potential memory leak
  ACPI / CPPC: signedness bug in register_pcc_channel()
  ACPI / PAD: power_saving_thread() is not freezable
  ACPI / PM: Fix incorrect wakeup IRQ setting during suspend-to-idle
  ACPI: Using correct irq when waiting for events
  ACPI: Use correct IRQ when uninstalling ACPI interrupt handler
  cpuidle: mvebu: disable the bind/unbind attributes and use builtin_platform_driver
  cpuidle: mvebu: clean up multiple platform drivers
  ...
2015-11-04 18:10:13 -08:00
Mark Brown 4c84518523 Merge remote-tracking branches 'spi/topic/omap-100k', 'spi/topic/omap-uwire', 'spi/topic/owner', 'spi/topic/pxa' and 'spi/topic/pxa2xx' into spi-next 2015-11-04 11:02:12 +00:00
Michael Welling a748941c95 Input: tsc2004 - add support for tsc2004
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>
2015-11-03 14:54:22 -08:00
Michael Welling ef3b98c2c3 Input: tsc200x-core - rename functions and variables
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>
2015-11-03 14:54:01 -08:00
Michael Welling 6ac2438132 Input: tsc2005 - separate SPI and core functions
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>
2015-11-03 14:49:25 -08:00
Dmitry Torokhov 84a73014d8 Merge branch 'next' into for-linus
Prepare first round of input updates for 4.3 merge window.
2015-11-03 14:45:16 -08:00
Rafael J. Wysocki 9bb4064ca3 Merge branch 'pm-sleep'
* pm-sleep:
  PM / hibernate: fix a comment typo
  input: i8042: Avoid resetting controller on system suspend/resume
  PM / PCI / ACPI: Kick devices that might have been reset by firmware
  PM / sleep: Add flags to indicate platform firmware involvement
  PM / sleep: Drop pm_request_idle() from pm_generic_complete()
  PCI / PM: Avoid resuming more devices during system suspend
  PM / wakeup: wakeup_source_create: use kstrdup_const
  PM / sleep: Report interrupt that caused system wakeup
2015-11-02 00:52:19 +01:00
Aniroop Mathur bf5f18d708 Input: evdev - fix bug in checking duplicate clock change request
clk_type and clkid stores different predefined clock identification
values so they cannot be compared for checking duplicate clock change
request. Therefore, lets fix it to avoid unexpected results.

Signed-off-by: Aniroop Mathur <a.mathur@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-31 10:35:02 -07:00
Linus Torvalds 38dab9ac1c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input layer fixes from Dmitry Torokhov:

 - a change to the ALPS driver where we had limit the quirk for
   trackstick handling from being active on all Dells to just a few
   models

 - a fix for a build dependency issue in the sur40 driver

 - a small clock handling fixup in the LPC32xx touchscreen driver

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: alps - only the Dell Latitude D420/430/620/630 have separate stick button bits
  Input: sur40 - add dependency on VIDEO_V4L2
  Input: lpc32xx_ts - fix warnings caused by enabling unprepared clock
2015-10-30 18:49:44 -07:00
Stephen Chandler Paul 5523662edd Input: add userio module
Debugging input devices, specifically laptop touchpads, can be tricky
without having the physical device handy. Here we try to remedy that
with userio. This module allows an application to connect to a character
device provided by the kernel, and emulate any serio device. In
combination with userspace programs that can record PS/2 devices and
replay them through the /dev/userio device, this allows developers to
debug driver issues on the PS/2 level with devices simply by requesting
a recording from the user experiencing the issue without having to have
the physical hardware in front of them.

Signed-off-by: Stephen Chandler Paul <cpaul@redhat.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-27 18:55:31 -07:00
Andrew F. Davis 3821a065f5 spi: Drop owner assignment from spi_drivers
An spi_driver does not need to set an owner, it will be populated by the
driver core.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-10-28 10:30:17 +09:00
David Herrmann 06a16293f7 Input: evdev - add event-mask API
Hardware manufacturers group keys in the weirdest way possible. This may
cause a power-key to be grouped together with normal keyboard keys and
thus be reported on the same kernel interface.

However, user-space is often only interested in specific sets of events.
For instance, daemons dealing with system-reboot (like systemd-logind)
listen for KEY_POWER, but are not interested in any main keyboard keys.
Usually, power keys are reported via separate interfaces, however,
some i8042 boards report it in the AT matrix. To avoid waking up those
system daemons on each key-press, we had two ideas:
 - split off KEY_POWER into a separate interface unconditionally
 - allow filtering a specific set of events on evdev FDs

Splitting of KEY_POWER is a rather weird way to deal with this and may
break backwards-compatibility. It is also specific to KEY_POWER and might
be required for other stuff, too. Moreover, we might end up with a huge
set of input-devices just to have them properly split.

Hence, this patchset implements the second idea: An event-mask to specify
which events you're interested in. Two ioctls allow setting this mask for
each event-type. If not set, all events are reported. The type==0 entry is
used same as in EVIOCGBIT to set the actual EV_* mask of filtered events.
This way, you have a two-level filter.

We are heavily forward-compatible to new event-types and event-codes. So
new user-space will be able to run on an old kernel which doesn't know the
given event-codes or event-types.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-26 19:06:48 -07:00
Javier Martinez Canillas 9ace41adb4 Input: snvs_pwrkey - remove duplicated semicolon
Remove the unneded semicolon since it is clearly a typo error.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-26 17:28:34 -07:00
Hans de Goede 195562194a Input: alps - only the Dell Latitude D420/430/620/630 have separate stick button bits
commit 92bac83dd7 ("Input: alps - non interleaved V2 dualpoint has
separate stick button bits") assumes that all alps v2 non-interleaved
dual point setups have the separate stick button bits.

Later we limited this to Dell laptops only because of reports that this
broke things on non Dell laptops. Now it turns out that this breaks things
on the Dell Latitude D600 too. So it seems that only the Dell Latitude
D420/430/620/630, which all share the same touchpad / stick combo,
have these separate bits.

This patch limits the checking of the separate bits to only these models
fixing regressions with other models.

Reported-and-tested-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: stable@vger.kernel.org
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-By: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-26 17:23:48 -07:00
Moritz Fischer 05f216ddca Input: e3x0-button - update Kconfig description
The driver is now used for the entire USRP e3xx series,
this commit fixes the description that will be displayed in
the menu accordingly.

Signed-off-by: Moritz Fischer <moritz.fischer@ettus.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-26 01:39:07 -07:00
Sudeep Holla 8ad165e922 Input: tegra-kbc - drop use of IRQF_NO_SUSPEND flag
The driver handles wakeup irq correctly using device_init_wakeup and
enable_irq_wake. There's no need to use IRQF_NO_SUSPEND while registering
the interrupt.

This patch removes the use of IRQF_NO_SUSPEND flag.

Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-26 01:39:07 -07:00
Sudeep Holla b42a1148de Input: tegra-kbc - enable support for the standard "wakeup-source" property
Though the tegra-kbc driver should/will continue to support the legacy
"nvidia,wakeup-source" property to enable keyboard as the wakeup source,
we need to add support for the new standard property "wakeup-source".

This patch adds support for "wakeup-source" property in addition to the
existing "nvidia,wakeup-source" property.

Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-26 01:26:59 -07:00
Insu Yun ec7aa963bf Input: xen - check return value of xenbus_printf
Internally, xenbus_printf uses memory allocation, so it can fail under
memory pressure, leaving the input device configured as absolute with the
backend supplying relative coordinates.

Signed-off-by: Insu Yun <wuninsu@gmail.com>
Reviewed-by: Julien Grall <julien.grall@citrix.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-22 23:32:01 -07:00
WEN Pingbo ba564e7897 Input: hp_sdc_rtc - fix y2038 problem in proc_show
hp_sdc_rtc_proc_show() use timeval to store the time, which will overflow
in 2038.

This patch fixes this problem by replacing timeval with timespec64.
hp_sdc_rtc_proc_show() only output string, so that userspace will work
normally if we apply this patch.

Not all timer in i8042 have y2038 risk(handshake, match timer, etc),
Replacements in those timer are just for consistency.

Signed-off-by: WEN Pingbo <pingbo.wen@linaro.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-22 23:31:28 -07:00
Geliang Tang 2e9776e0c8 Input: nomadik-ske-keypad - fix a trivial typo
s/regsiter/register/

Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-22 23:31:22 -07:00
Junghak Sung 33119e80c3 [media] media: videobuf2: Change queue_setup argument
Replace struct v4l2_format * with void * to make queue_setup()
for common use.
And then, modify all device drivers related with this change.

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 <hans.verkuil@cisco.com>
[hans.verkuil@cisco.com: fix missing const in fimc-lite.c]

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-20 14:48:39 -02:00
Pavel Rojtberg fbe6a31144 Input: xpad - fix clash of presence handling with LED setting
Do not call xpad_identify_controller at init with wireless devices: it
conflicts with the already sent presence packet and will be called by
xpad360w_process_packet as needed anyway.

Signed-off-by: Pavel Rojtberg <rojtberg@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-19 00:11:22 -07:00
Randy Dunlap c8a1978e07 Input: sur40 - add dependency on VIDEO_V4L2
Fix build errors due to missing Kconfig dependency.

drivers/built-in.o: In function `sur40_disconnect':
sur40.c:(.text+0x22be6e): undefined reference to `video_unregister_device'
sur40.c:(.text+0x22be77): undefined reference to `v4l2_device_unregister'
drivers/built-in.o: In function `sur40_process_video':
sur40.c:(.text+0x22c1d4): undefined reference to `v4l2_get_timestamp'
drivers/built-in.o: In function `sur40_probe':
sur40.c:(.text+0x22ca82): undefined reference to `v4l2_device_register'
sur40.c:(.text+0x22cb1a): undefined reference to `v4l2_device_unregister'
sur40.c:(.text+0x22cbf7): undefined reference to `video_device_release_empty'
sur40.c:(.text+0x22cc53): undefined reference to `__video_register_device'
sur40.c:(.text+0x22cc90): undefined reference to `video_unregister_device'
drivers/built-in.o: In function `sur40_vidioc_querycap':
sur40.c:(.text+0x22ccb0): undefined reference to `video_devdata'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-18 16:32:03 -07:00
Vladimir Zapolskiy 324700604b Input: lpc32xx_ts - fix warnings caused by enabling unprepared clock
If common clock framework is configured, the driver generates a warning,
which is fixed by this change:

    root@devkit3250:~# cat /dev/input/touchscreen0
    ------------[ cut here ]------------
    WARNING: CPU: 0 PID: 720 at drivers/clk/clk.c:727 clk_core_enable+0x2c/0xa4()
    Modules linked in: sc16is7xx snd_soc_uda1380
    CPU: 0 PID: 720 Comm: cat Not tainted 4.3.0-rc2+ #199
    Hardware name: LPC32XX SoC (Flattened Device Tree)
    Backtrace:
    [<>] (dump_backtrace) from [<>] (show_stack+0x18/0x1c)
    [<>] (show_stack) from [<>] (dump_stack+0x20/0x28)
    [<>] (dump_stack) from [<>] (warn_slowpath_common+0x90/0xb8)
    [<>] (warn_slowpath_common) from [<>] (warn_slowpath_null+0x24/0x2c)
    [<>] (warn_slowpath_null) from [<>] (clk_core_enable+0x2c/0xa4)
    [<>] (clk_core_enable) from [<>] (clk_enable+0x24/0x38)
    [<>] (clk_enable) from [<>] (lpc32xx_setup_tsc+0x18/0xa0)
    [<>] (lpc32xx_setup_tsc) from [<>] (lpc32xx_ts_open+0x14/0x1c)
    [<>] (lpc32xx_ts_open) from [<>] (input_open_device+0x74/0xb0)
    [<>] (input_open_device) from [<>] (evdev_open+0x110/0x16c)
    [<>] (evdev_open) from [<>] (chrdev_open+0x1b4/0x1dc)
    [<>] (chrdev_open) from [<>] (do_dentry_open+0x1dc/0x2f4)
    [<>] (do_dentry_open) from [<>] (vfs_open+0x6c/0x70)
    [<>] (vfs_open) from [<>] (path_openat+0xb4c/0xddc)
    [<>] (path_openat) from [<>] (do_filp_open+0x40/0x8c)
    [<>] (do_filp_open) from [<>] (do_sys_open+0x124/0x1c4)
    [<>] (do_sys_open) from [<>] (SyS_open+0x2c/0x30)
    [<>] (SyS_open) from [<>] (ret_fast_syscall+0x0/0x38)

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-17 11:33:05 -07:00
Linus Torvalds 16c8b9cb24 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
 "Just two small fixups to ads7846 touchscreen controller driver and
  Cypress touchpad driver"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: cyapa - fix the copy paste error on electrodes_rx value
  Input: ads7846 - correct the value got from SPI
2015-10-16 17:39:27 -07:00
Franklin S Cooper Jr 9378c0251c Input: edt-ft5x06 - work around FT5506 firmware bug
In the touchscreen controller ISR, reading the tsc starting from
register 0x2 causes the tsc to infrequently update the detected
finger's x and y coordinate. The irq pin toggles at a fast rate to
indicate touch events are happening. However, the tsc on average
updates the touch point's x and y value every ~100 ms which is much
slower than the advertised rate of 100+ Hz. This leads to multiple reads
within this ~100 ms time window returning the same value.

Example:
X: 10 , Y: 30
X: 10 , Y: 30
X: 10,  Y: 30
..
// After 100 ms
X: 300, Y: 300
X: 300, y: 300
..
// After 100 ms
X: 1743, Y: 621
X: 1743, Y: 621

For some reason if instead of starting to read at register 0x2 you
start reading at register 0x0 this issue isn't seen. This seems like
a quirk only seen in the EDT FT5506 so to fix this issue simply
adjust the code to start reading from 0x0. Technically this isn't wrong
so no regressions should be seen with other touchscreen controllers
supported by this driver.

Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-16 16:58:45 -07:00
Franklin S Cooper Jr af33e0ad1b Input: edt-ft5x06 - add support for FT5506
FT5506 is essentially the same as other FT5x06 devices other than
supporting 10 support points.

Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-16 16:58:45 -07:00
Franklin S Cooper Jr b1d2a3ecb9 Input: edt-ft5x06 - add support for different max support points
Update the code so that the maximum supported points aren't hard coded but
can be changed.

Set the maximum support points based on the data passed along side the
compatible field.

Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-16 16:58:44 -07:00
Franklin S Cooper Jr c789f1fb07 Input: edt-ft5x06 - use max support points to determine how much to read
Calculate the amount of data that needs to be read for the specified max
number of support points. If the maximum number of support points changes
then the amount that is read from the touch screen controller should
reflect this.

Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-16 16:58:44 -07:00
Ezequiel Garcia 3a341a4c30 Input: rotary-encoder - add support for quarter-period mode
Some encoders have both outputs low in stable states, others also have
a stable state with both outputs high (half-period mode) and some have
a stable state in all steps (quarter-period mode). The driver used to
support the former states and with this change it can also support the
later.

This commit also deprecates the 'half-period' property and introduces
a new property 'steps-per-period'. This property specifies the
number of steps (stable states) produced by the rotary encoder
for each GPIO period.

Signed-off-by: Guido Martínez <guido@vanguardiasur.com.ar>
Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-16 15:32:18 -07:00
Ben Gamari 648b15cb79 Input: rotary-encoder - use of_property_read_bool
This commit makes uses of_property_read_bool() to read
boolean properties. This is just cosmetic cleanup.

Signed-off-by: Ben Gamari <bgamari.foss@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-16 15:32:17 -07:00
Elias Vanderstuyft 33b96d9349 Input: document and check on implicitly defined FF_MAX_EFFECTS
There is an undocumented upper bound for the total number of ff effects:
    FF_GAIN (= 96).
This can be found as follows:
- user: write(EV_FF, effect_id, iterations)
    calls kernel: ff->playback(effect_id, ...): starts effect "effect_id"
- user: write(EV_FF, FF_GAIN, gain)
    calls kernel: ff->set_gain(gain, ...): sets gain

A collision occurs when effect_id equals FF_GAIN.
According to input_ff_event(),
FF_GAIN is the smallest value where a collision occurs.
Therefore the greatest safe value for effect_id is FF_GAIN - 1,
and thus the total number of effects should never exceed FF_GAIN.

Define FF_MAX_EFFECTS as FF_GAIN and check on this limit in ff-core.

Signed-off-by: Elias Vanderstuyft <elias.vds@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-16 15:32:16 -07:00
Hans de Goede 6f29d3b277 Input: gpio_keys_polled - add support for abs/rel axis
This changAdd support for EV_ABS / EV_REL events to the gpio-keys-polled driver.


The driver already allows specifying what type of events (key / rel / abs)
a button generates when pressed, but for rel / abs axis we also need to
specify which value this specific gpio represents.

One use case is digital joysticks / direction-pads which are hooked up to
gpio, in this case we've left and right buttons which we want to map to
EV_ABS, ABS_X and we want generate events for left with a value of -1 and
for right with a value of +1 (and similar for up / down and ABS_Y).

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>
2015-10-14 17:15:04 -07:00
Vignesh R 881d824569 Input: pixcir_i2c_ts - remove wakeirq related code from pixcir driver
With commit 3fffd12839 ("i2c: allow specifying separate wakeup
interrupt in device tree") wakeirq is managed by i2c-core, so remove
wakeirq related code from pixcir_i2c_ts driver.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-13 23:33:02 -07:00
Sylvain Rochet 47ec6e5a5f Input: rotary_encoder - add wake up support
This patch adds wake up support to GPIO rotary encoders.

Signed-off-by: Sylvain Rochet <sylvain.rochet@finsecur.com>
Reviewed-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-13 23:30:31 -07:00
Petri Gynther 027c71bbae Input: improve autorepeat initialization
Add new function input_enable_softrepeat() that allows drivers to
initialize their own values for input_dev->rep[REP_DELAY] and
input_dev->rep[REP_PERIOD], but also use the software autorepeat
functionality from input.c.

For example, a HID driver could do:

static void xyz_input_configured(struct hid_device *hid,
                                 struct hid_input *hidinput)
{
        input_enable_softrepeat(hidinput->input, 400, 100);
}

static struct hid_driver xyz_driver = {
        .input_configured = xyz_input_configured,
}

Signed-off-by: Petri Gynther <pgynther@google.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-13 23:30:31 -07:00
Dudley Du a487c03fa2 Input: cyapa - fix the copy paste error on electrodes_rx value
Fix the copy paste error on the electrodes_rx value set code which will
cause the electrodes_rx value be always set to the value of electrodes_y.

Reported-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Dudley Du <dudl@cypress.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-13 23:29:52 -07:00
Rafael J. Wysocki 1c5dd13459 input: i8042: Avoid resetting controller on system suspend/resume
If the upcoming system suspend is not going to be handled by the
platform firmware, like in the suspend-to-idle case, it is not
necessary to reset the controller in i8042_pm_suspend(), so avoid
doing that.

Moreover, if the system resume currently in progress has not been
started by the platform firmware, like in the suspend-to-idle case,
i8042_controller_resume() need not be called by i8042_pm_resume(),
so avoid doing that too in that case.

Additionally, try to catch the event that woke up the system by
calling the interrupt handler early during system resume if it has
not been started by the platform firmware.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-14 02:17:34 +02:00
Pavel Rojtberg aba54876bb Input: xpad - query wireless controller state at init
When we initialize the driver/device, we really don't know how many
controllers are connected.  So send a "query presence" command to the
base-station. (Command discovered by Zachary Lund)

Presence packet taken from:

https://github.com/computerquip/xpad5

Signed-off-by: Pavel Rojtberg <rojtberg@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-10 11:27:42 -07:00
Pierre-Loup A. Griffais b8154002cb Input: xpad - move the input device creation to a new function
To allow us to later create / destroy the input device from the urb
callback, we need to initialize/ deinitialize the input device from a
separate function.  So pull that logic out now to make later patches
more "obvious" as to what they do.

Signed-off-by: "Pierre-Loup A. Griffais" <pgriffais@valvesoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Pavel Rojtberg <rojtberg@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-10 11:27:30 -07:00
Pavel Rojtberg 5ee8bda943 Input: xpad - x360w: report dpad as buttons and axes
as discussed here[0], x360w is the only pad that maps dpad_to_button.
This is bad for downstream developers as they have to differ between
x360 and x360w which is not intuitive.

This patch implements the suggested solution of exposing the dpad both
as axes and as buttons. This retains backward compatibility with software
already dealing with the difference while makes new software work as
expected across x360/ x360w pads.

[0] http://www.spinics.net/lists/linux-input/msg34421.html

Signed-off-by: Pavel Rojtberg <rojtberg@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-10 11:27:29 -07:00
Pavel Rojtberg 060081529c Input: xpad - factor out URB submission in xpad_play_effect
Move submission logic to a single point at the end of the function.
This makes it easy to add locking/ queuing code later on.

Signed-off-by: Pavel Rojtberg <rojtberg@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-10 11:27:29 -07:00
Pavel Rojtberg a306a65f46 Input: xpad - remove needless bulk out URB used for LED setup
This code was probably wrong ever since and is redundant with
xpad_send_led_command. Both try to send a similar command to the xbox360
controller. However xpad_send_led_command correctly uses the pad_nr instead
of bInterfaceNumber to select the led and re-uses the irq_out URB instead
of creating a new one.

Note that this change only affects the two supported wireless controllers.
Tested using the xbox360 wireless controller (PC).

Signed-off-by: Pavel Rojtberg <rojtberg@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-10 11:27:28 -07:00
Pavel Rojtberg e3b651745a Input: xpad - use ida() for finding the pad_nr
The pad_nr corresponds to the lit up LED on the controller. Therefore there
should be no gaps when enumerating. Currently a LED is only re-assigned
after a controller is re-connected 4 times.

This patch uses ida to track connected pads - this way we can re-assign
freed up pad number immediately.

Consider the following case:
1. pad A is connected and gets pad_nr = 0
2. pad B is connected and gets pad_nr = 1
3. pad A is disconnected
4. pad A is connected again

using ida_simple_get() controller A now correctly gets pad_nr = 0 again.

Signed-off-by: Pavel Rojtberg <rojtberg@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-10 11:27:06 -07:00
Pavel Rojtberg 1f6f02b728 Input: xpad - clarify LED enumeration
Rename led_no -> pad_nr: the number stored there is not the LED number - it
gets translated later on to a LED number in xpad_identify_controller;

Signed-off-by: Pavel Rojtberg <rojtberg@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-10 11:27:06 -07:00
Dario Scarpa 470446ecef Input: xpad - fix Razer Atrox Arcade Stick button mapping
The "Razer Atrox Arcade Stick" features 10 buttons, and two of them (LT/RT)
don't work properly.  Change its definition in xpad_device[] (mapping
field) to fix.

Signed-off-by: Dario Scarpa <dario.scarpa@duskzone.it>
Signed-off-by: Pavel Rojtberg <rojtberg@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-10 11:27:05 -07:00
Erik Lundgren 39a7a88872 Input: xpad - add Covert Forces edition of the Xbox One controller
It is identical to the Xbox One controller but has a different product ID.

Signed-off-by: Pavel Rojtberg <rojtberg@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-10 11:27:05 -07:00
Dmitry Torokhov 10fbb8f56b Input: ft6236 - change module license string to match copyright notice
The copyright/license notice says that the code is licensed under GPL v2
only (not GPL v2+), so let's use proper string in MODULE_LICENSE().

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-10 11:27:04 -07:00
Andrey Gelman 879f2fea8a Input: ads7846 - correct the value got from SPI
According to the touch controller spec, SPI return a 16 bit value, only 12
bits are valid, they are bit[14-3].

The value of MISO and MOSI can be configured when SPI is in idle mode.
Currently this touch driver assumes the SPI bus sets the MOSI and MISO in
low level when SPI bus is in idle mode. So the bit[15] of the value got
from SPI bus is always 0. But when SPI bus congfigures the MOSI and MISO in
high level during the SPI idle mode, the bit[15] of the value get from SPI
is always 1. If bit[15] is not masked, we may get the wrong value.

Mask the invalid bit to make sure the correct value gets returned.
Regardless of the SPI bus idle configuration.

Signed-off-by: Andrey Gelman <andrey.gelman@compulab.co.il>
Signed-off-by: Haibo Chen <haibo.chen@freescale.com>
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-06 16:39:14 -07:00
Fengguang Wu 726d0d407b Input: ft6236 - do not explicitly set driver's owner
There is no need to explicitly set .owner for the driver, the core will do
it for us.

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-06 16:38:41 -07:00
Franklin S Cooper Jr 8b58cc36b1 Input: edt-ft5x06 - do not call desc_to_gpio for invalid gpios
Since reset and wake pin are optional the gpio structure for those
pins may be null. Therefore, they can't be blindly passed to
desc_to_gpio.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-06 16:38:40 -07:00
Javier Martinez Canillas 5b21e3c740 Input: joydev - fix possible ERR_PTR() dereferencing
Commit 5702222c9a ("Input: joydev - use memdup_user() to duplicate
memory from user-space") changed the kmalloc() and copy_from_user()
with a single call to memdup_user() but wrongly used the same error
path than the old code in which the buffer allocated by kmalloc() was
freed if copy_from_user() failed.

This is of course wrong since if memdup_user() fails, no memory was
allocated and the error in the error-valued pointer should be returned.

Fixes: 5702222c9a ("Input: joydev - use memdup_user() to duplicate
memory from user-space")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-06 16:38:40 -07:00
Yoichi Yuasa c7efd12350 Input: add support for ROHM BU21023/24 touchscreen
This adds support for ROHM BU21023/24 Dual touch resistive touchscreens.

Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-05 17:50:53 -07:00
Sudip Mukherjee 33ca8ab97c Input: parkbd - use parallel port device model
Modify parkbd driver to use the new Parallel Port device model.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-05 17:50:24 -07:00