Commit Graph

3345 Commits

Author SHA1 Message Date
Linus Torvalds cf26057a94 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID updates from Jiri Kosina:

 - high-resolution scrolling support that gracefully handles differences
   between MS and Logitech implementations in HW, from Peter Hutterer
   and Harry Cutts

 - MSI IRQ support for intel-ish driver, from Song Hongyan

 - support for new hardware (Cougar 700K, Odys Winbook 13, ASUS FX503VD,
   ASUS T101HA) from Daniel M. Lambea, Hans de Goede and Aleix Roca
   Nonell

 - other small assorted fixups

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (22 commits)
  HID: i2c-hid: Add Odys Winbook 13 to descriptor override
  HID: lenovo: Add checks to fix of_led_classdev_register
  HID: intel-ish-hid: add MSI interrupt support
  HID: debug: Change to use DEFINE_SHOW_ATTRIBUTE macro
  HID: doc: fix wrong data structure reference for UHID_OUTPUT
  HID: intel-ish-hid: fixes incorrect error handling
  HID: asus: Add support for the ASUS T101HA keyboard dock
  HID: logitech: Use LDJ_DEVICE macro for existing Logitech mice
  HID: logitech: Enable high-resolution scrolling on Logitech mice
  HID: logitech: Add function to enable HID++ 1.0 "scrolling acceleration"
  HID: logitech-hidpp: fix typo, hiddpp to hidpp
  HID: input: use the Resolution Multiplier for high-resolution scrolling
  HID: core: process the Resolution Multiplier
  HID: core: store the collections as a basic tree
  Input: add `REL_WHEEL_HI_RES` and `REL_HWHEEL_HI_RES`
  HID: input: support Microsoft wireless radio control hotkey
  HID: use macros in IS_INPUT_APPLICATION
  HID: asus: Add support for the ASUS FX503VD laptop
  HID: asus: Add event handler to catch unmapped Asus Vendor UsagePage codes
  HID: cougar: Add support for Cougar 700K Gaming Keyboard
  ...
2019-01-05 17:53:40 -08:00
Jiri Kosina bd8879faaf Merge branches 'for-4.20/upstream-fixes', 'for-4.21/core', 'for-4.21/hid-asus', 'for-4.21/hid-core', 'for-4.21/hid-cougar', 'for-4.21/hidraw', 'for-4.21/highres-wheel' and 'for-4.21/ish' into for-linus 2019-01-03 12:50:28 +01:00
Hans de Goede f8f807441e HID: i2c-hid: Add Odys Winbook 13 to descriptor override
The Odys Winbook 13 uses a SIPODEV SP1064 touchpad, which does not
supply descriptors, add this to the DMI descriptor override list, fixing
the touchpad not working.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1526312
Reported-by: Rene Wagner <redhatbugzilla@callerid.de>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2019-01-03 11:31:18 +01:00
Aditya Pakki 6ae16dfb61 HID: lenovo: Add checks to fix of_led_classdev_register
In lenovo_probe_tpkbd(), the function of_led_classdev_register() could
return an error value that is unchecked. The fix adds these checks.

Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2019-01-03 11:30:08 +01:00
Linus Torvalds 24dc83635f This is the bulk of GPIO changes for the v4.21 kernel series:
Core changes:
 
 - Some core changes are already in outside of this pull
   request as they came through the regulator tree, most
   notably devm_gpiod_unhinge() that removes devres refcount
   management from a GPIO descriptor. This is needed in
   subsystems such as regulators where the regulator core
   need to take over the reference counting and lifecycle
   management for a GPIO descriptor.
 
 - We dropped devm_gpiochip_remove() and devm_gpio_chip_match()
   as nothing needs it. We can bring it back if need be.
 
 - Add a global TODO so people see where we are going. This
   helps setting the direction now that we are two GPIO
   maintainers.
 
 - Handle the MMC CD/WP properties in the device tree core.
   (The bulk of patches activating this code is already
   merged through the MMC/SD tree.)
 
 - Augment gpiochip_request_own_desc() to pass a flag so
   we as gpiochips can request lines as active low or open
   drain etc even from ourselves.
 
 New drivers:
 
 - New driver for Cadence GPIO blocks.
 
 - New driver for Atmel SAMA5D2 PIOBU GPIO lines.
 
 Driver improvements:
 
 - A major refactoring of the PCA953x driver - this driver has
   been around for ages, and is now modernized to reduce code
   duplication that has stacked up and is using regmap to read
   write and cache registers.
 
 - Intel drivers are now maintained in a separate tree and
   start with a round of cleanups and unifications.
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Merge tag 'gpio-v4.21-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO updates from Linus Walleij:
 "This is the bulk of GPIO changes for the v4.21 kernel series.

  Core changes:

   - Some core changes are already in outside of this pull request as
     they came through the regulator tree, most notably
     devm_gpiod_unhinge() that removes devres refcount management from a
     GPIO descriptor. This is needed in subsystems such as regulators
     where the regulator core need to take over the reference counting
     and lifecycle management for a GPIO descriptor.

   - We dropped devm_gpiochip_remove() and devm_gpio_chip_match() as
     nothing needs it. We can bring it back if need be.

   - Add a global TODO so people see where we are going. This helps
     setting the direction now that we are two GPIO maintainers.

   - Handle the MMC CD/WP properties in the device tree core. (The bulk
     of patches activating this code is already merged through the
     MMC/SD tree.)

   - Augment gpiochip_request_own_desc() to pass a flag so we as
     gpiochips can request lines as active low or open drain etc even
     from ourselves.

  New drivers:

   - New driver for Cadence GPIO blocks.

   - New driver for Atmel SAMA5D2 PIOBU GPIO lines.

  Driver improvements:

   - A major refactoring of the PCA953x driver - this driver has been
     around for ages, and is now modernized to reduce code duplication
     that has stacked up and is using regmap to read write and cache
     registers.

   - Intel drivers are now maintained in a separate tree and start with
     a round of cleanups and unifications"

* tag 'gpio-v4.21-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (99 commits)
  gpio: sama5d2-piobu: Depend on OF_GPIO
  gpio: Add Cadence GPIO driver
  dt-bindings: gpio: Add bindings for Cadence GPIO
  gpiolib-acpi: remove unused variable 'err', cleans up build warning
  gpio: mxs: read pin level directly instead of using .get
  gpio: aspeed: remove duplicated statement
  gpio: add driver for SAMA5D2 PIOBU pins
  dt-bindings: arm: atmel: describe SECUMOD usage as a GPIO controller
  gpio/mmc/of: Respect polarity in the device tree
  dt-bindings: gpio: rcar: Add r8a774c0 (RZ/G2E) support
  memory: omap-gpmc: Get the header of the enum
  ARM: omap1: Fix new user of gpiochip_request_own_desc()
  gpio: pca953x: Add regmap dependency for PCA953x driver
  gpio: raspberrypi-exp: decrease refcount on firmware dt node
  gpiolib: Fix return value of gpio_to_desc() stub if !GPIOLIB
  gpio: pca953x: Restore registers after suspend/resume cycle
  gpio: pca953x: Zap single use of pca953x_read_single()
  gpio: pca953x: Zap ad-hoc reg_output cache
  gpio: pca953x: Zap ad-hoc reg_direction cache
  gpio: pca953x: Perform basic regmap conversion
  ...
2018-12-28 20:00:21 -08:00
Song Hongyan 74fbc7d371 HID: intel-ish-hid: add MSI interrupt support
Now ish hid ipc only support sideband interrupt but on some platforms
they use MSI interrupt.
In order to make the interrupt type coverage all the scenario add
single MSI interrupt support, it can match all interrupt types.

Signed-off-by: Song Hongyan <hongyan.song@intel.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-12-19 19:59:01 +01:00
Yangtao Li 8c32d47b15 HID: debug: Change to use DEFINE_SHOW_ATTRIBUTE macro
Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-12-19 14:20:14 +01:00
Pan Bian 6e0856d317 HID: intel-ish-hid: fixes incorrect error handling
The memory chunk allocated by hid_allocate_device() should be released
by hid_destroy_device(), not kfree().

Fixes: 0b28cb4bcb1("HID: intel-ish-hid: ISH HID client driver")
Signed-off-by: Pan Bian <bianpan2016@163.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-12-17 15:04:49 +01:00
Aleix Roca Nonell 0e1f37d120 HID: asus: Add support for the ASUS T101HA keyboard dock
The ASUS T101HA keyboard dock generates HID events using the ASUS vendor
specific UsagePage 0xff31. In consequence, some multimedia keys such as
brightness up and down are not working with hid-generic.

This commit adds the T101HA dock into the supported device list of the
hid-asus driver. It also prevents the dock's integrated touchpad to be
bound with hid-asus given that it is already working fine with
hid-multitouch.

Signed-off-by: Aleix Roca Nonell <kernelrocks@gmail.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
2018-12-17 11:10:39 +01:00
Linus Walleij 21abf10381 gpio: Pass a flag to gpiochip_request_own_desc()
Before things go out of hand, make it possible to pass
flags when requesting "own" descriptors from a gpio_chip.
This is necessary if the chip wants to request a GPIO with
active low semantics, for example.

Cc: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Roger Quadros <rogerq@ti.com>
Reviewed-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-12-14 14:24:33 +01:00
Linus Torvalds f5d582777b Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID subsystem fixes from Jiri Kosina:

 - two device-specific quirks from Hans de Goede and Nic Soudée

 - reintroduction of (mistakenly remocved) ABS_RESERVED from Peter
   Hutterer

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
  Input: restore EV_ABS ABS_RESERVED
  HID: quirks: fix RetroUSB.com devices
  HID: ite: Add USB id match for another ITE based keyboard rfkill key quirk
2018-12-10 11:04:41 -08:00
Harry Cutts 1676722994 HID: logitech: Use LDJ_DEVICE macro for existing Logitech mice
Signed-off-by: Harry Cutts <hcutts@chromium.org>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Verified-by: Harry Cutts <hcutts@chromium.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
2018-12-07 16:27:16 +01:00
Harry Cutts 4435ff2f09 HID: logitech: Enable high-resolution scrolling on Logitech mice
There are three features used by various Logitech mice for
high-resolution scrolling: the scrolling acceleration bit in HID++ 1.0,
and the x2120 and x2121 features in HID++ 2.0 and above. This patch
supports all three, and uses the multiplier reported by the mouse for
the HID++ 2.0+ features.

The full list of product IDs of mice which support high-resolution
scrolling was provided by Logitech, but the patch was tested using the
following mice (using the Unifying receiver):

* HID++ 1.0: Anywhere MX, Performance MX
* x2120: M560
* x2121: MX Anywhere 2, MX Master 2S

This patch is a combinations of the now-reverted commits 1ff2e1a44e,
d56ca9855b, 5fe2ccbef9, 044ee89028 together with some extra bits for the
directional and timeout-based reset.
The previous patch series was in hid-input, it appears this remainder
handling is logitech-specific and was moved to hid-logitech-hidpp.c and
renamed accordingly.

Signed-off-by: Harry Cutts <hcutts@chromium.org>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Verified-by: Harry Cutts <hcutts@chromium.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
2018-12-07 16:27:15 +01:00
Harry Cutts 95c3d00282 HID: logitech: Add function to enable HID++ 1.0 "scrolling acceleration"
"Scrolling acceleration" is a bit of a misnomer: it doesn't deal with
acceleration at all. However, that's the name used in Logitech's spec,
so I used it here.

Signed-off-by: Harry Cutts <hcutts@chromium.org>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Verified-by: Harry Cutts <hcutts@chromium.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
2018-12-07 16:27:15 +01:00
Peter Hutterer fef33601a3 HID: logitech-hidpp: fix typo, hiddpp to hidpp
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Verified-by: Harry Cutts <hcutts@chromium.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
2018-12-07 16:27:14 +01:00
Peter Hutterer 2dc702c991 HID: input: use the Resolution Multiplier for high-resolution scrolling
Windows uses a magic number of 120 for a wheel click. High-resolution
scroll wheels are supposed to use a fraction of 120 to signal smaller
scroll steps. This is implemented by the Resolution Multiplier in the
device itself.

If the multiplier is present in the report descriptor, set it to the
logical max and then use the resolution multiplier to calculate the
high-resolution events. This is the recommendation by Microsoft, see
http://msdn.microsoft.com/en-us/windows/hardware/gg487477.aspx

Note that all mice encountered so far have a logical min/max of 0/1, so
it's a binary "yes or no" to high-res scrolling anyway.

To make userspace simpler, always enable the REL_WHEEL_HI_RES bit. Where
the device doesn't support high-resolution scrolling, the value for the
high-res data will simply be a multiple of 120 every time. For userspace,
if REL_WHEEL_HI_RES is available that is the one to be used.

Potential side-effect: a device with a Resolution Multiplier applying to
other Input items will have those items set to the logical max as well.
This cannot easily be worked around but it is doubtful such devices exist.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Verified-by: Harry Cutts <hcutts@chromium.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
2018-12-07 16:27:13 +01:00
Peter Hutterer 5a4abb36f3 HID: core: process the Resolution Multiplier
The Resolution Multiplier is a feature report that modifies the value of
Usages within the same Logical Collection. If the multiplier is set to
anything but 1, the hardware reports (value * multiplier) for the same amount
of physical movement, i.e. the value we receive in the kernel is
pre-multiplied.

The hardware may either send a single (value * multiplier), or by sending
multiplier as many reports with the same value, or a combination of these two
options. For example, when the Microsoft Sculpt Ergonomic mouse Resolution
Multiplier is set to 12, the Wheel sends out 12 for every detent but AC Pan
sends out a value of 3 at 4 times the frequency.

The effective multiplier is based on the physical min/max of the multiplier
field, a logical min/max of [0,1] with a physical min/max of [1,8] means the
multiplier is either 1 or 8.

The Resolution Multiplier was introduced for high-resolution scrolling in
Windows Vista and is commonly used on Microsoft mice.

The recommendation for the Resolution Multiplier is to default to 1 for
backwards compatibility. This patch adds an arbitrary upper limit at 255. The
only known use case for the Resolution Multiplier is for scroll wheels where the
multiplier has to be a fraction of 120 to work with Windows.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Verified-by: Harry Cutts <hcutts@chromium.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
2018-12-07 16:27:13 +01:00
Peter Hutterer c53431eb69 HID: core: store the collections as a basic tree
For each collection parsed, store a pointer to the parent collection
(if any). This makes it a lot easier to look up which collection(s)
any given item is part of

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Verified-by: Harry Cutts <hcutts@chromium.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
2018-12-07 16:27:12 +01:00
Nic Soudée 868613f1c0 HID: quirks: fix RetroUSB.com devices
SNES RetroPort and RetroPad register only 4 gamepad buttons
when they should register all 8 buttons. This is described here:

https://ask.fedoraproject.org/en/question/128102

This is happening because of:

Commit 190d7f02ce ("HID: input: do not increment usages when
    duplicate is found")

Here, I add the quirk HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE
(created for backward compatibility with the change in 190d7f02ce)
for the two products.

Tested with both RetroPort and RetroPad.

Cc: stable@vger.kernel.org  # v4.18+

Signed-off-by: Nic Soudée <nsoudee@gmail.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
2018-12-07 14:12:34 +01:00
Linus Torvalds adac0753c2 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
 "Mostly new IDs for Elan/Synaptics touchpads, plus a few small fixups"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: omap-keypad - fix keyboard debounce configuration
  Input: xpad - quirk all PDP Xbox One gamepads
  Input: synaptics - enable SMBus for HP 15-ay000
  Input: synaptics - add PNP ID for ThinkPad P50 to SMBus
  Input: elan_i2c - add ACPI ID for Lenovo IdeaPad 330-15ARR
  Input: elan_i2c - add support for ELAN0621 touchpad
  Input: hyper-v - fix wakeup from suspend-to-idle
  Input: atkbd - clean up indentation issue
  Input: st1232 - convert to SPDX identifiers
  Input: migor_ts - convert to SPDX identifiers
  Input: dt-bindings - fix a typo in file input-reset.txt
  Input: cros_ec_keyb - fix button/switch capability reports
  Input: elan_i2c - add ELAN0620 to the ACPI table
  Input: matrix_keypad - check for errors from of_get_named_gpio()
2018-12-04 08:47:04 -08:00
Linus Torvalds cd9a043323 Staging and IIO driver fixes for 4.20-rc5
Here are some small IIO and Staging driver fixes for 4.20-rc5.
 
 Nothing major, the IIO fix ended up touching the HID drivers at the same
 time, but the HID maintainer acked it.  The staging fixes are all minor
 patches for reported issues and regressions, full details are in the
 shortlog.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.20-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging and IIO driver fixes from Greg KH:
 "Here are some small IIO and staging driver fixes for 4.20-rc5.

  Nothing major, the IIO fix ended up touching the HID drivers at the
  same time, but the HID maintainer acked it. The staging fixes are all
  minor patches for reported issues and regressions, full details are in
  the shortlog.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'staging-4.20-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  iio/hid-sensors: Fix IIO_CHAN_INFO_RAW returning wrong values for signed numbers
  staging: vchiq_arm: fix compat VCHIQ_IOC_AWAIT_COMPLETION
  staging: mt7621-pinctrl: fix uninitialized variable ngroups
  staging: rtl8723bs: Add missing return for cfg80211_rtw_get_station
  staging: most: use format specifier "%s" in snprintf
  staging: rtl8723bs: Fix incorrect sense of ether_addr_equal
  staging: mt7621-dma: fix potentially dereferencing uninitialized 'tx_desc'
  staging: comedi: clarify/unify macros for NI macro-defined terminals
  drivers: staging: cedrus: find ctx before dereferencing it ctx
  staging: rtl8723bs: Fix the return value in case of error in 'rtw_wx_read32()'
  staging: comedi: ni_mio_common: scale ao INSN_CONFIG_GET_CMD_TIMING_CONSTRAINTS
  iio:st_magn: Fix enable device after trigger
2018-11-30 12:23:44 -08:00
Hans de Goede 2340bad5d2 HID: asus: Add support for the ASUS FX503VD laptop
The ASUS FX503VD laptop uses an USB keyboard with several hotkeys
which use the Asus Vendor specific UsagePage.

This uses two usage-codes within the page which have not been seen
before, 0x7c for its mic-mute hotkey and 0x99 for Fn+F5 which has
a "fan" symbol as hotkey symbol on the keyb. we map this to KEY_PROG4
(PROG1-PROG3 are already used).

This commit adds the mappings for the 2 new usage codes and the USB-ids
for this keyboard to the hid-asus driver.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
2018-11-30 14:29:30 +01:00
Hans de Goede e98e38090f HID: asus: Add event handler to catch unmapped Asus Vendor UsagePage codes
Various Asus devices generate HID events using the Asus Vendor specific
UsagePage 0xff31 and hid-asus will map these in its input_mapping for all
devices to which it binds (independent of any quirks).

Add an event callback which check for unmapped (because sofar unknown)
usages within the Asus Vendor UsagePage and log a warning for these.

The purpose of this patch is to help debugging / find such unmapped codes
and add them to the asus_input_mapping() function.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
2018-11-30 14:29:30 +01:00
Hans de Goede 4050207485 HID: ite: Add USB id match for another ITE based keyboard rfkill key quirk
The 258a:6a88 keyboard-dock shipped with the Prowise PT301 tablet is
likely another ITE based design. The controller die is directly bonded
to the PCB with a blob of black glue on top so there are no markings and
the 258a vendor-id used is unknown anywhere. But the keyboard has the
exact same hotkeys mapped to Fn+F1 - F10 as the other ITE8595 keyboard
I have *and* it has the same quirky behavior wrt the rfkill hotkey.

Either way as said this keyboard has the same quirk for its rfkill /
airplane mode hotkey as the ITE 8595 chip, it only sends a single release
event when pressed and released, it never sends a press event.

This commit adds the 258a:6a88 USB id to the hid-ite id-table, fixing
the rfkill key not working on this keyboard.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
2018-11-30 14:12:07 +01:00
Greg Kroah-Hartman c648284f6c First set of IIO fixes for the 4.20 cycle.
* st_magn
   - Avoid an ordering issue that lead to large numbers of unhandled
     interrupts whilst enabling buffered capture.
 * hid-sensors
   - Fix a long running problem with signed values reading wrong from
     sysfs on these sensors.   It appears people were only using the
     buffered interface.  These typically occur in laptops so chances
     are everyone was using the sensor-proxy which will use the buffered
     interface by default.
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Merge tag 'iio-fixes-for-4.20a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

Jonathan writes:

First set of IIO fixes for the 4.20 cycle.

* st_magn
  - Avoid an ordering issue that lead to large numbers of unhandled
    interrupts whilst enabling buffered capture.
* hid-sensors
  - Fix a long running problem with signed values reading wrong from
    sysfs on these sensors.   It appears people were only using the
    buffered interface.  These typically occur in laptops so chances
    are everyone was using the sensor-proxy which will use the buffered
    interface by default.

* tag 'iio-fixes-for-4.20a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio:
  iio/hid-sensors: Fix IIO_CHAN_INFO_RAW returning wrong values for signed numbers
  iio:st_magn: Fix enable device after trigger
2018-11-22 09:37:36 +01:00
Benjamin Tissoires f1539a0c25 Revert "HID: input: Create a utility class for counting scroll events"
This reverts commit 1ff2e1a44e.

It turns out the current API is not that compatible with
some Microsoft mice, so better start again from scratch.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Harry Cutts <hcutts@chromium.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
2018-11-22 08:57:38 +01:00
Benjamin Tissoires 00acc9e2c4 Revert "HID: logitech: Add function to enable HID++ 1.0 "scrolling acceleration""
This reverts commit 051dc9b057.

It turns out the current API is not that compatible with
some Microsoft mice, so better start again from scratch.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Harry Cutts <hcutts@chromium.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
2018-11-22 08:57:33 +01:00
Benjamin Tissoires 5372fc3797 Revert "HID: logitech: Enable high-resolution scrolling on Logitech mice"
This reverts commit d56ca9855b.

It turns out the current API is not that compatible with
some Microsoft mice, so better start again from scratch.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Harry Cutts <hcutts@chromium.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
2018-11-22 08:57:27 +01:00
Benjamin Tissoires a69616d5b3 Revert "HID: logitech: Use LDJ_DEVICE macro for existing Logitech mice"
This reverts commit 3fe1d6bbcd.

It turns out the current API is not that compatible with
some Microsoft mice, so better start again from scratch.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Harry Cutts <hcutts@chromium.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
2018-11-22 08:57:21 +01:00
Benjamin Tissoires d0341efe74 Revert "HID: logitech: fix a used uninitialized GCC warning"
This reverts commit 5fe2ccbef9.

It turns out the current API is not that compatible with
some Microsoft mice, so better start again from scratch.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Harry Cutts <hcutts@chromium.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
2018-11-22 08:57:03 +01:00
Benjamin Tissoires e2b95b2719 Revert "HID: input: simplify/fix high-res scroll event handling"
This reverts commit 044ee89028.

It turns out the current API is not that compatible with
some Microsoft mice, so better start again from scratch.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Harry Cutts <hcutts@chromium.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
2018-11-22 08:56:04 +01:00
Daniel M. Lambea aeed35faee HID: cougar: Add support for Cougar 700K Gaming Keyboard
Add USB ID 060b:700a to the list of valid USB IDS for the
cougar hid driver.

Signed-off-by: Daniel M. Lambea <dmlambea@gmail.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
2018-11-21 14:41:43 +01:00
Sebastian Parschauer fb862c3b19 HID: Add quirk for Primax PIXART OEM mice
The PixArt OEM mice are known for disconnecting every minute in
runlevel 1 or 3 if they are not always polled. So add quirk
ALWAYS_POLL for two Primax mice as well.

0x4e22 is the Dell MS111-P and 0x4d0f is the unbranded HP Portia
mouse HP 697738-001. Both were built until approx. 2014.
Those were the standard mice from those vendors and are still
around - even as new old stock.

Reference: https://github.com/sriemer/fix-linux-mouse/issues/11

Signed-off-by: Sebastian Parschauer <sparschauer@suse.de>
CC: stable@vger.kernel.org
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-11-20 13:07:52 +01:00
Kai-Heng Feng 86c31524b2 HID: i2c-hid: Disable runtime PM for LG touchscreen
LG touchscreen (1fd2:8001) stops working after reboot:
[ 4.859153] i2c_hid i2c-SAPS2101:00: i2c_hid_get_input: incomplete report (64/66)
[ 4.936070] i2c_hid i2c-SAPS2101:00: i2c_hid_get_input: incomplete report (64/66)
[ 9.948224] i2c_hid i2c-SAPS2101:00: failed to reset device.

The device in question stops working after receives SLEEP, ON, SLEEP
commands in a short period. The scenario is like this:
- Once the desktop session closes, it also closed the hid device, so the
device gets runtime suspended and receives a SLEEP command.
- Before calling shutdown callback, it gets runtime resumed and received
an ON command.
- In the shutdown callback, it receives another SLEEP command.

I failed to find a reliable interval between ON/SLEEP commands that can
make it work, so let's simply disable runtime PM for the device.

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-11-19 16:27:00 +01:00
Kai-Heng Feng 12d43aacf9 HID: multitouch: Add pointstick support for Cirque Touchpad
Cirque Touchpad/Pointstick combo is similar to Alps devices, it requires
MT_CLS_WIN_8_DUAL to expose its pointstick as a mouse.

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-11-19 16:26:59 +01:00
Rodrigo Rivas Costa 385a488677 HID: steam: remove input device when a hid client is running.
Previously, when a HID client such as the Steam Client was running, this
driver disabled its input device to avoid doubling the input events.

While it worked mostly fine, some games got confused by the idle gamepad,
and switched to two player mode, or asked the user to choose which gamepad
to use. Other games just crashed, probably a bug in Unity [1].

With this commit, when a HID client starts, the input device is removed;
when the HID client ends the input device is recreated.

[1]: https://github.com/ValveSoftware/steam-for-linux/issues/5645

Signed-off-by: Rodrigo Rivas Costa <rodrigorivascosta@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-11-19 16:19:51 +01:00
David Herrmann 4d26d1d1e8 Revert "HID: uhid: use strlcpy() instead of strncpy()"
This reverts commit 336fd4f5f2.

Please note that `strlcpy()` does *NOT* do what you think it does.
strlcpy() *ALWAYS* reads the full input string, regardless of the
'length' parameter. That is, if the input is not zero-terminated,
strlcpy() will *READ* beyond input boundaries. It does this, because it
always returns the size it *would* copy if the target was big enough,
not the truncated size it actually copied.

The original code was perfectly fine. The hid device is
zero-initialized and the strncpy() functions copied up to n-1
characters. The result is always zero-terminated this way.

This is the third time someone tried to replace strncpy with strlcpy in
this function, and gets it wrong. I now added a comment that should at
least make people reconsider.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-11-19 14:32:27 +01:00
Eric Biggers 8c01db7619 HID: uhid: forbid UHID_CREATE under KERNEL_DS or elevated privileges
When a UHID_CREATE command is written to the uhid char device, a
copy_from_user() is done from a user pointer embedded in the command.
When the address limit is KERNEL_DS, e.g. as is the case during
sys_sendfile(), this can read from kernel memory.  Alternatively,
information can be leaked from a setuid binary that is tricked to write
to the file descriptor.  Therefore, forbid UHID_CREATE in these cases.

No other commands in uhid_char_write() are affected by this bug and
UHID_CREATE is marked as "obsolete", so apply the restriction to
UHID_CREATE only rather than to uhid_char_write() entirely.

Thanks to Dmitry Vyukov for adding uhid definitions to syzkaller and to
Jann Horn for commit 9da3f2b740 ("x86/fault: BUG() when uaccess
helpers fault on kernel addresses"), allowing this bug to be found.

Reported-by: syzbot+72473edc9bf4eb1c6556@syzkaller.appspotmail.com
Fixes: d365c6cfd3 ("HID: uhid: add UHID_CREATE and UHID_DESTROY events")
Cc: <stable@vger.kernel.org> # v3.6+
Cc: Jann Horn <jannh@google.com>
Cc: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Jann Horn <jannh@google.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-11-19 14:25:15 +01:00
Hans de Goede 0145b50566 iio/hid-sensors: Fix IIO_CHAN_INFO_RAW returning wrong values for signed numbers
Before this commit sensor_hub_input_attr_get_raw_value() failed to take
the signedness of 16 and 8 bit values into account, returning e.g.
65436 instead of -100 for the z-axis reading of an accelerometer.

This commit adds a new is_signed parameter to the function and makes all
callers pass the appropriate value for this.

While at it, this commit also fixes up some neighboring lines where
statements were needlessly split over 2 lines to improve readability.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-16 11:42:12 +00:00
Vitaly Kuznetsov 10f91c73cc Input: hyper-v - fix wakeup from suspend-to-idle
It makes little sense but still possible to put Hyper-V guests into
suspend-to-idle state. To wake them up two wakeup sources were registered
in the past: hyperv-keyboard and hid-hyperv. However, since
commit eed4d47efe ("ACPI / sleep: Ignore spurious SCI wakeups from
suspend-to-idle") pm_wakeup_event() from these devices is ignored. Switch
to pm_wakeup_hard_event() API as these devices are actually the only
possible way to wakeup Hyper-V guests.

Fixes: eed4d47efe (ACPI / sleep: Ignore spurious SCI wakeups from suspend-to-idle)
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: K. Y. Srinivasan <kys@microsoft.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-11-15 11:05:53 -08:00
Jiri Kosina cc7ed49a7f HID: hidraw: enforce minors_lock locking via lockdep
lockdep is much more powerful enforcing the locking rules than code comments,
so let's switch to it.

Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-11-12 12:44:03 +01:00
Benson Leung 0fd791841a HID: input: Ignore battery reported by Symbol DS4308
The Motorola/Zebra Symbol DS4308-HD is a handheld USB barcode scanner
which does not have a battery, but reports one anyway that always has
capacity 2.

Let's apply the IGNORE quirk to prevent it from being treated like a
power supply so that userspaces don't get confused that this
accessory is almost out of power and warn the user that they need to charge
their wired barcode scanner.

Reported here: https://bugs.chromium.org/p/chromium/issues/detail?id=804720

Signed-off-by: Benson Leung <bleung@chromium.org>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
2018-11-12 10:08:46 +01:00
Sebastian Parschauer e82e62e390 HID: Add quirk for Microsoft PIXART OEM mouse
The PixArt OEM mice are known for disconnecting every minute in
runlevel 1 or 3 if they are not always polled. So add quirk
ALWAYS_POLL for this one as well.

References:
https://www.spinics.net/lists/linux-usb/msg88965.html
http://linet.gr.jp/~kojima/PlamoWeb/ML/htdocs/201808/msg00019.html

Signed-off-by: Sebastian Parschauer <sparschauer@suse.de>
CC: stable@vger.kernel.org
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-11-08 12:09:02 +01:00
Arnd Bergmann 3fc202e81d HID: asus: fix build warning wiht CONFIG_ASUS_WMI disabled
asus_wmi_evaluate_method() is an empty dummy function when CONFIG_ASUS_WMI
is disabled, or not reachable from a built-in device driver. This leads to
a theoretical evaluation of an uninitialized variable that the compiler
complains about, failing to check that the hardcoded return value makes
this an unreachable code path:

In file included from include/linux/printk.h:336,
                 from include/linux/kernel.h:14,
                 from include/linux/list.h:9,
                 from include/linux/dmi.h:5,
                 from drivers/hid/hid-asus.c:29:
drivers/hid/hid-asus.c: In function 'asus_input_configured':
include/linux/dynamic_debug.h:135:3: error: 'value' may be used uninitialized in this function [-Werror=maybe-uninitialized]
   __dynamic_dev_dbg(&descriptor, dev, fmt, \
   ^~~~~~~~~~~~~~~~~
drivers/hid/hid-asus.c:359:6: note: 'value' was declared here
  u32 value;
      ^~~~~

With an extra IS_ENABLED() check, the warning goes away.

Fixes: 3b692c55e5 ("HID: asus: only support backlight when it's not driven by WMI")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-11-06 13:57:42 +01:00
Jiri Kosina 0c72442095 Merge branch 'master' into for-4.20/upstream-fixes
Pull in a merge commit that brought in 3b692c55e5 ("HID: asus: only
support backlight when it's not driven by WMI") so that fixup could be
applied on top of it.
2018-11-06 13:57:02 +01:00
Linus Torvalds eb7046e9bf platform-drivers-x86 for v4.20-1
Move the Dell dcdbas and dell_rbu drivers into platform/drivers/x86 as
 they are closely coupled with other drivers in this location.
 
 Improve _init* usage for acerhdf and fix some usage issues with messages
 and module parameters.
 
 Simplify asus-wmi by calling ACPI/WMI methods directly, eliminating
 workqueue overhead, eliminate double reporting of keyboard backlight.
 
 Fix wake from USB failure on Bay Trail devices (intel_int0002_vgpio).
 
 Notify intel_telemetry users when IPC1 device is not enabled.
 
 Update various drivers with new laptop model IDs.
 
 Update several intel drivers to use SPDX identifers and order headers
 alphabetically.
 
 The following is an automated git shortlog grouped by driver:
 
 Add Intel AtomISP2 dummy / power-management driver:
  - Add Intel AtomISP2 dummy / power-management driver
 
 lg-laptop:
  - Add LG Gram laptop special features driver
 
 HID:
  -  asus: only support backlight when it's not driven by WMI
 
 MAINTAINERS:
  -  intel_telemetry: Update maintainers info
  -  intel_pmc_core: Update MAINTAINERS
  -  Update maintainer for dcdbas and dell_rbu
  -  Use my infradead account exclusively for PDx86 work
 
 acerhdf:
  -  restructure to allow large BIOS table be __initconst
  -  mark appropriate content with __init prefix
  -  Add BIOS entry for Gateway LT31 v1.3307
  -  Remove cut-and-paste trap from instructions
  -  Enable ability to list supported systems
  -  clarify modinfo messages for BIOS override
 
 asus-wmi:
  -  export function for evaluating WMI methods
  -  Only notify kbd LED hw_change by fn-key pressed
  -  Simplify the keyboard brightness updating process
 
 firmware:
  -  dcdbas: include linux/io.h
  -  dcdbas: Move dcdbas to drivers/platform/x86
  -  dell_rbu: Move dell_rbu to drivers/platform/x86
  -  dcdbas: Add support for WSMT ACPI table
  -  dell_rbu: Make payload memory uncachable
 
 ideapad-laptop:
  -  Add Y530-15ICH to no_hw_rfkill
  -  Use __func__ instead of read_ec_cmd in pr_err
 
 intel-hid:
  -  Convert to use SPDX identifier
 
 intel-ips:
  -  Convert to use SPDX identifier
 
 intel-rst:
  -  Convert to use SPDX identifier
  -  Sort headers alphabetically
 
 intel-smartconnect:
  -  Convert to use SPDX identifier
  -  Sort headers alphabetically
 
 intel-wmi-thunderbolt:
  -  Add dynamic debugging
  -  Convert to use SPDX identifier
 
 intel_bxtwc_tmu:
  -  Convert to use SPDX identifier
 
 intel_cht_int33fe:
  -  Convert to use SPDX identifier
 
 intel_chtdc_ti_pwrbtn:
  -  Add SPDX identifier
 
 intel_int0002_vgpio:
  -  Convert to use SPDX identifier
  -  Implement irq_set_wake
  -  Enable the driver on Bay Trail platforms
 
 intel_menlow:
  -  Convert to use SPDX identifier
  -  Sort headers alphabetically
 
 intel_mid_powerbtn:
  -  Convert to use SPDX identifier
  -  Remove unnecessary init.h inclusion
  -  Get rid of custom ICPU() macro
 
 intel_mid_thermal:
  -  Convert to use SPDX identifier
  -  Sort headers alphabetically
 
 intel_oaktrail:
  -  Convert to use SPDX identifier
  -  Sort headers alphabetically
 
 intel_pmc:
  -  Convert to use SPDX identifier
  -  Sort headers alphabetically
 
 intel_punit_ipc:
  -  Convert to use SPDX identifier
  -  Sort headers alphabetically
 
 intel_scu_ipc:
  -  Convert to use SPDX identifier
  -  Sort headers alphabetically
 
 intel_telemetry:
  -  Get rid of custom macro
  -  report debugfs failure
  -  Convert to use SPDX identifier
 
 intel_turbo_max_3:
  -  Convert to use SPDX identifier
  -  Sort headers alphabetically
 
 mlx-platform:
  -  Properly use mlxplat_mlxcpld_msn201x_items
 
 touchscreen_dmi:
  -  Add min-x and min-y settings for various models
  -  Add info for the Onda V80 Plus v3 tablet
  -  Add info for the Trekstor Primetab T13B tablet
  -  Add info for the Trekstor Primebook C11 convertible
 
 tracing:
  -  Trivia spelling fix containerof() -> container_of()
 
 wmi:
  -  declare device_type structure as constant
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Merge tag 'platform-drivers-x86-v4.20-1' of git://git.infradead.org/linux-platform-drivers-x86

Pull x86 platform driver updates from Darren Hart:

 - Move the Dell dcdbas and dell_rbu drivers into platform/drivers/x86
   as they are closely coupled with other drivers in this location.

 - Improve _init* usage for acerhdf and fix some usage issues with
   messages and module parameters.

 - Simplify asus-wmi by calling ACPI/WMI methods directly, eliminating
   workqueue overhead, eliminate double reporting of keyboard backlight.

 - Fix wake from USB failure on Bay Trail devices (intel_int0002_vgpio).

 - Notify intel_telemetry users when IPC1 device is not enabled.

 - Update various drivers with new laptop model IDs.

 - Update several intel drivers to use SPDX identifers and order headers
   alphabetically.

* tag 'platform-drivers-x86-v4.20-1' of git://git.infradead.org/linux-platform-drivers-x86: (64 commits)
  HID: asus: only support backlight when it's not driven by WMI
  platform/x86: asus-wmi: export function for evaluating WMI methods
  platform/x86: asus-wmi: Only notify kbd LED hw_change by fn-key pressed
  platform/x86: wmi: declare device_type structure as constant
  platform/x86: ideapad: Add Y530-15ICH to no_hw_rfkill
  platform/x86: Add Intel AtomISP2 dummy / power-management driver
  platform/x86: touchscreen_dmi: Add min-x and min-y settings for various models
  platform/x86: touchscreen_dmi: Add info for the Onda V80 Plus v3 tablet
  platform/x86: touchscreen_dmi: Add info for the Trekstor Primetab T13B tablet
  platform/x86: intel_telemetry: Get rid of custom macro
  platform/x86: intel_telemetry: report debugfs failure
  MAINTAINERS: intel_telemetry: Update maintainers info
  platform/x86: Add LG Gram laptop special features driver
  platform/x86: asus-wmi: Simplify the keyboard brightness updating process
  platform/x86: touchscreen_dmi: Add info for the Trekstor Primebook C11 convertible
  platform/x86: mlx-platform: Properly use mlxplat_mlxcpld_msn201x_items
  MAINTAINERS: intel_pmc_core: Update MAINTAINERS
  firmware: dcdbas: include linux/io.h
  platform/x86: intel-wmi-thunderbolt: Add dynamic debugging
  platform/x86: intel-wmi-thunderbolt: Convert to use SPDX identifier
  ...
2018-11-01 08:42:21 -07:00
Daniel Drake 3b692c55e5 HID: asus: only support backlight when it's not driven by WMI
The Asus GL502VSK has the same 0B05:1837 keyboard as we've seen in
several Republic of Gamers laptops.

However, in this model, the keybard backlight control exposed by hid-asus
has no effect on the keyboard backlight. Instead, the keyboard
backlight is correctly driven by asus-wmi.

With two keyboard backlight devices available (and only the acer-wmi
one working), GNOME is picking the wrong one to drive in the UI.

Avoid this problem by not creating the backlight interface when we
detect a WMI-driven keyboard backlight.

We have also tested Asus GL702VMK which does have the hid-asus
backlight present, and it still works fine with this patch (WMI method
call returns UNSUPPORTED_METHOD).

A direct "depends on ASUS_WMI" is intentionally avoided so that HID_ASUS
users who have ASUS_WMI=n will not quietly lose their HID_ASUS driver on
a kernel upgrade.

Signed-off-by: Daniel Drake <drake@endlessm.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2018-10-31 16:11:40 +02:00
Julian Sax 399474e4c1 HID: i2c-hid: add Direkt-Tek DTLAPY133-1 to descriptor override
This device uses the SIPODEV SP1064 touchpad, which does not
supply descriptors, so it has to be added to the override list.

Reported-by: Tim Aldridge <taldridge@mac.com>
Signed-off-by: Julian Sax <jsbc@gmx.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-10-31 13:00:02 +01:00
Linus Torvalds 134bf98c55 media updates for v4.20-rc1
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Merge tag 'media/v4.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - new dvb frontend driver: lnbh29

 - new sensor drivers: imx319 and imx 355

 - some old soc_camera driver renames to avoid conflict with new
   drivers

 - new i.MX Pixel Pipeline (PXP) mem-to-mem platform driver

 - a new V4L2 frontend for the FWHT codec

 - several other improvements, bug fixes, code cleanups, etc

* tag 'media/v4.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (289 commits)
  media: rename soc_camera I2C drivers
  media: cec: forgot to cancel delayed work
  media: vivid: Support 480p for webcam capture
  media: v4l2-tpg: fix kernel oops when enabling HFLIP and OSD
  media: vivid: Add 16-bit bayer to format list
  media: v4l2-tpg-core: Add 16-bit bayer
  media: pvrusb2: replace `printk` with `pr_*`
  media: venus: vdec: fix decoded data size
  media: cx231xx: fix potential sign-extension overflow on large shift
  media: dt-bindings: media: rcar_vin: add device tree support for r8a7744
  media: isif: fix a NULL pointer dereference bug
  media: exynos4-is: make const array config_ids static
  media: cx23885: make const array addr_list static
  media: ivtv: make const array addr_list static
  media: bttv-input: make const array addr_list static
  media: cx18: Don't check for address of video_dev
  media: dw9807-vcm: Fix probe error handling
  media: dw9714: Remove useless error message
  media: dw9714: Fix error handling in probe function
  media: cec: name for RC passthrough device does not need 'RC for'
  ...
2018-10-29 14:29:58 -07:00
Linus Torvalds 044ee89028 HID: input: simplify/fix high-res scroll event handling
Commit 1ff2e1a44e ("HID: input: Create a utility class for counting
scroll events") created the helper function

    hid_scroll_counter_handle_scroll()

to handle high-res scroll events and also expose them as regular wheel
events.

But the resulting algorithm was unstable, and causes scrolling to be
very unreliable.  When you hit the half-way mark of the highres
multiplier, small highres movements will incorrectly translate into big
traditional wheel movements, causing odd jitters.

Simplify the code and make the output stable.

NOTE! I'm pretty sure this will need further tweaking.  But this at
least turns a unusable mouse wheel on my Logitech MX Anywhere 2S into
a usable one.

Cc: Jiri Kosina <jikos@kernel.org>
Cc: Harry Cutts <hcutts@chromium.org>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-29 11:25:24 -07:00