<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux.git/drivers/input, branch v4.16</title>
<subtitle>Linux kernel source tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/'/>
<entry>
<title>Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input</title>
<updated>2018-03-08T01:37:32+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2018-03-08T01:37:32+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=851710a8096131129ad1da79a47d385c4926d114'/>
<id>851710a8096131129ad1da79a47d385c4926d114</id>
<content type='text'>
Pull input fixes from Dmitry Torokhov:

 - we are reverting patch that was switched touchpad on Lenovo T460P
   over to native RMI because on these boxes BIOS messes up with SMBus
   controller state. We might re-enable it later once SMBus issue is
   resolved

 - disabling interrupts in matrix_keypad driver was racy

 - mms114 now has SPDX header and matching MODULE_LICENSE

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Revert "Input: synaptics - Lenovo Thinkpad T460p devices should use RMI"
  Input: matrix_keypad - fix race when disabling interrupts
  Input: mms114 - add SPDX identifier
  Input: mms114 - fix license module information
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull input fixes from Dmitry Torokhov:

 - we are reverting patch that was switched touchpad on Lenovo T460P
   over to native RMI because on these boxes BIOS messes up with SMBus
   controller state. We might re-enable it later once SMBus issue is
   resolved

 - disabling interrupts in matrix_keypad driver was racy

 - mms114 now has SPDX header and matching MODULE_LICENSE

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Revert "Input: synaptics - Lenovo Thinkpad T460p devices should use RMI"
  Input: matrix_keypad - fix race when disabling interrupts
  Input: mms114 - add SPDX identifier
  Input: mms114 - fix license module information
</pre>
</div>
</content>
</entry>
<entry>
<title>Revert "Input: synaptics - Lenovo Thinkpad T460p devices should use RMI"</title>
<updated>2018-03-07T23:50:29+00:00</updated>
<author>
<name>Arkadiusz Hiler</name>
<email>arkadiusz.hiler@intel.com</email>
</author>
<published>2018-03-07T23:40:28+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=5444a992b4a73aa5246a432c482b20b89bce93a5'/>
<id>5444a992b4a73aa5246a432c482b20b89bce93a5</id>
<content type='text'>
This reverts commit 48282969826b3d3c76e908182f69724d86d995fe which
caused the following issues:

1. On T460p with BIOS version 2.22 touchpad and trackpoint stop working
after suspend-resume cycle. Due to strange state of the device another
suspend is impossible.

The following dmesg errors can be observed:
thinkpad_acpi: EC reports that Thermal Table has changed
rmi4_smbus 7-002c: failed to get SMBus version number!
rmi4_physical rmi4-00: rmi_driver_reset_handler: Failed to read current IRQ mask.
rmi4_f01 rmi4-00.fn01: Failed to restore normal operation: -16.
rmi4_f01 rmi4-00.fn01: Resume failed with code -16.
rmi4_physical rmi4-00: Failed to suspend functions: -16
rmi4_smbus 7-002c: Failed to resume device: -16
PM: resume devices took 0.640 seconds
rmi4_f03 rmi4-00.fn03: rmi_f03_pt_write: Failed to write to F03 TX register (-16).
rmi4_physical rmi4-00: rmi_driver_clear_irq_bits: Failed to change enabled interrupts!
rmi4_physical rmi4-00: rmi_driver_set_irq_bits: Failed to change enabled interrupts!
psmouse: probe of serio3 failed with error -1

2. On another T460p with BIOS version 2.15 two finger scrolling gesture
on the touchpad stops working after suspend-resume cycle (about 75%
reproducibility, when it still works, the scrolling gesture becomes
laggy). Nothing suspicious appears in the dmesg.

Analysis form Richard Schütz:

"RMI is unreliable on the ThinkPad T460p because the device is affected
by the firmware behavior addressed in a7ae81952cda ("i2c: i801: Allow
ACPI SystemIO OpRegion to conflict with PCI BAR")."

The affected devices often show:

i801_smbus 0000:00:1f.4: BIOS is accessing SMBus registers
i801_smbus 0000:00:1f.4: Driver SMBus register access inhibited

Reported-by: Richard Schütz &lt;rschuetz@uni-koblenz.de&gt;
Signed-off-by: Arkadiusz Hiler &lt;arkadiusz.hiler@intel.com&gt;
Tested-by: Martin Peres &lt;martin.peres@linux.intel.com&gt;
Tested-by: Arkadiusz Hiler &lt;arkadiusz.hiler@intel.com&gt;
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov &lt;dmitry.torokhov@gmail.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This reverts commit 48282969826b3d3c76e908182f69724d86d995fe which
caused the following issues:

1. On T460p with BIOS version 2.22 touchpad and trackpoint stop working
after suspend-resume cycle. Due to strange state of the device another
suspend is impossible.

The following dmesg errors can be observed:
thinkpad_acpi: EC reports that Thermal Table has changed
rmi4_smbus 7-002c: failed to get SMBus version number!
rmi4_physical rmi4-00: rmi_driver_reset_handler: Failed to read current IRQ mask.
rmi4_f01 rmi4-00.fn01: Failed to restore normal operation: -16.
rmi4_f01 rmi4-00.fn01: Resume failed with code -16.
rmi4_physical rmi4-00: Failed to suspend functions: -16
rmi4_smbus 7-002c: Failed to resume device: -16
PM: resume devices took 0.640 seconds
rmi4_f03 rmi4-00.fn03: rmi_f03_pt_write: Failed to write to F03 TX register (-16).
rmi4_physical rmi4-00: rmi_driver_clear_irq_bits: Failed to change enabled interrupts!
rmi4_physical rmi4-00: rmi_driver_set_irq_bits: Failed to change enabled interrupts!
psmouse: probe of serio3 failed with error -1

2. On another T460p with BIOS version 2.15 two finger scrolling gesture
on the touchpad stops working after suspend-resume cycle (about 75%
reproducibility, when it still works, the scrolling gesture becomes
laggy). Nothing suspicious appears in the dmesg.

Analysis form Richard Schütz:

"RMI is unreliable on the ThinkPad T460p because the device is affected
by the firmware behavior addressed in a7ae81952cda ("i2c: i801: Allow
ACPI SystemIO OpRegion to conflict with PCI BAR")."

The affected devices often show:

i801_smbus 0000:00:1f.4: BIOS is accessing SMBus registers
i801_smbus 0000:00:1f.4: Driver SMBus register access inhibited

Reported-by: Richard Schütz &lt;rschuetz@uni-koblenz.de&gt;
Signed-off-by: Arkadiusz Hiler &lt;arkadiusz.hiler@intel.com&gt;
Tested-by: Martin Peres &lt;martin.peres@linux.intel.com&gt;
Tested-by: Arkadiusz Hiler &lt;arkadiusz.hiler@intel.com&gt;
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov &lt;dmitry.torokhov@gmail.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>vfs: do bulk POLL* -&gt; EPOLL* replacement</title>
<updated>2018-02-11T22:34:03+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2018-02-11T22:34:03+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=a9a08845e9acbd224e4ee466f5c1275ed50054e8'/>
<id>a9a08845e9acbd224e4ee466f5c1275ed50054e8</id>
<content type='text'>
This is the mindless scripted replacement of kernel use of POLL*
variables as described by Al, done by this script:

    for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do
        L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'`
        for f in $L; do sed -i "-es/^\([^\"]*\)\(\&lt;POLL$V\&gt;\)/\\1E\\2/" $f; done
    done

with de-mangling cleanups yet to come.

NOTE! On almost all architectures, the EPOLL* constants have the same
values as the POLL* constants do.  But they keyword here is "almost".
For various bad reasons they aren't the same, and epoll() doesn't
actually work quite correctly in some cases due to this on Sparc et al.

The next patch from Al will sort out the final differences, and we
should be all done.

Scripted-by: Al Viro &lt;viro@zeniv.linux.org.uk&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This is the mindless scripted replacement of kernel use of POLL*
variables as described by Al, done by this script:

    for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do
        L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'`
        for f in $L; do sed -i "-es/^\([^\"]*\)\(\&lt;POLL$V\&gt;\)/\\1E\\2/" $f; done
    done

with de-mangling cleanups yet to come.

NOTE! On almost all architectures, the EPOLL* constants have the same
values as the POLL* constants do.  But they keyword here is "almost".
For various bad reasons they aren't the same, and epoll() doesn't
actually work quite correctly in some cases due to this on Sparc et al.

The next patch from Al will sort out the final differences, and we
should be all done.

Scripted-by: Al Viro &lt;viro@zeniv.linux.org.uk&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Input: matrix_keypad - fix race when disabling interrupts</title>
<updated>2018-02-10T00:15:45+00:00</updated>
<author>
<name>Zhang Bo</name>
<email>zbsdta@126.com</email>
</author>
<published>2018-02-05T22:56:21+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=ea4f7bd2aca9f68470e9aac0fc9432fd180b1fe7'/>
<id>ea4f7bd2aca9f68470e9aac0fc9432fd180b1fe7</id>
<content type='text'>
If matrix_keypad_stop() is executing and the keypad interrupt is triggered,
disable_row_irqs() may be called by both matrix_keypad_interrupt() and
matrix_keypad_stop() at the same time, causing interrupts to be disabled
twice and the keypad being "stuck" after resuming.

Take lock when setting keypad-&gt;stopped to ensure that ISR will not race
with matrix_keypad_stop() disabling interrupts.

Signed-off-by: Zhang Bo &lt;zbsdta@126.com&gt;
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov &lt;dmitry.torokhov@gmail.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
If matrix_keypad_stop() is executing and the keypad interrupt is triggered,
disable_row_irqs() may be called by both matrix_keypad_interrupt() and
matrix_keypad_stop() at the same time, causing interrupts to be disabled
twice and the keypad being "stuck" after resuming.

Take lock when setting keypad-&gt;stopped to ensure that ISR will not race
with matrix_keypad_stop() disabling interrupts.

Signed-off-by: Zhang Bo &lt;zbsdta@126.com&gt;
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov &lt;dmitry.torokhov@gmail.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Input: mms114 - add SPDX identifier</title>
<updated>2018-02-03T00:04:10+00:00</updated>
<author>
<name>Andi Shyti</name>
<email>andi.shyti@samsung.com</email>
</author>
<published>2018-02-01T18:22:20+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=0004520af32fca8b40abe78c11654be4e9e20fdf'/>
<id>0004520af32fca8b40abe78c11654be4e9e20fdf</id>
<content type='text'>
Replace the original license statement with the SPDX identifier.
Add also one line of description as recommended by the COPYING
file.

Signed-off-by: Andi Shyti &lt;andi.shyti@samsung.com&gt;
Signed-off-by: Dmitry Torokhov &lt;dmitry.torokhov@gmail.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Replace the original license statement with the SPDX identifier.
Add also one line of description as recommended by the COPYING
file.

Signed-off-by: Andi Shyti &lt;andi.shyti@samsung.com&gt;
Signed-off-by: Dmitry Torokhov &lt;dmitry.torokhov@gmail.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Input: mms114 - fix license module information</title>
<updated>2018-02-03T00:03:56+00:00</updated>
<author>
<name>Andi Shyti</name>
<email>andi.shyti@samsung.com</email>
</author>
<published>2018-02-01T18:18:59+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=498e7e7ed1fd72c275a682f0903c4a20cc538658'/>
<id>498e7e7ed1fd72c275a682f0903c4a20cc538658</id>
<content type='text'>
The driver has been released with GNU Public License v2 as stated
in the header, but the module license information has been tagged
as "GPL" (GNU Public License v2 or later).

Fix the module license information so that it matches the one in
the header as "GPL v2".

Fixes: 07b8481d4aff ("Input: add MELFAS mms114 touchscreen driver")
Reported-by: Marcus Folkesson &lt;marcus.folkesson@gmail.com&gt;
Signed-off-by: Andi Shyti &lt;andi.shyti@samsung.com&gt;
Signed-off-by: Dmitry Torokhov &lt;dmitry.torokhov@gmail.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The driver has been released with GNU Public License v2 as stated
in the header, but the module license information has been tagged
as "GPL" (GNU Public License v2 or later).

Fix the module license information so that it matches the one in
the header as "GPL v2".

Fixes: 07b8481d4aff ("Input: add MELFAS mms114 touchscreen driver")
Reported-by: Marcus Folkesson &lt;marcus.folkesson@gmail.com&gt;
Signed-off-by: Andi Shyti &lt;andi.shyti@samsung.com&gt;
Signed-off-by: Dmitry Torokhov &lt;dmitry.torokhov@gmail.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input</title>
<updated>2018-02-01T18:49:58+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2018-02-01T18:49:58+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=eea43ed86f38347979446905a20792a8be7bf5d1'/>
<id>eea43ed86f38347979446905a20792a8be7bf5d1</id>
<content type='text'>
Pull input layer updates from Dmitry Torokhov:

 - evdev interface has been adjusted to extend the life of timestamps on
   32 bit systems to the year of 2108

 - Synaptics RMI4 driver's PS/2 guest handling ha beed updated to
   improve chances of detecting trackpoints on the pass-through port

 - mms114 touchcsreen controller driver has been updated to support
   generic device properties and work with mms152 cntrollers

 - Goodix driver now supports generic touchscreen properties

 - couple of drivers for AVR32 architecture are gone as the architecture
   support has been removed from the kernel

 - gpio-tilt driver has been removed as there are no mainline users and
   the driver itself is using legacy APIs and relies on platform data

 - MODULE_LINECSE/MODULE_VERSION cleanups

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (45 commits)
  Input: goodix - use generic touchscreen_properties
  Input: mms114 - fix typo in definition
  Input: mms114 - use BIT() macro instead of explicit shifting
  Input: mms114 - replace mdelay with msleep
  Input: mms114 - add support for mms152
  Input: mms114 - drop platform data and use generic APIs
  Input: mms114 - mark as direct input device
  Input: mms114 - do not clobber interrupt trigger
  Input: edt-ft5x06 - fix error handling for factory mode on non-M06
  Input: stmfts - set IRQ_NOAUTOEN to the irq flag
  Input: auo-pixcir-ts - delete an unnecessary return statement
  Input: auo-pixcir-ts - remove custom log for a failed memory allocation
  Input: da9052_tsi - remove unused mutex
  Input: docs - use PROPERTY_ENTRY_U32() directly
  Input: synaptics-rmi4 - log when we create a guest serio port
  Input: synaptics-rmi4 - unmask F03 interrupts when port is opened
  Input: synaptics-rmi4 - do not delete interrupt memory too early
  Input: ad7877 - use managed resource allocations
  Input: stmfts,s6sy671 - add SPDX identifier
  Input: remove atmel-wm97xx touchscreen driver
  ...
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull input layer updates from Dmitry Torokhov:

 - evdev interface has been adjusted to extend the life of timestamps on
   32 bit systems to the year of 2108

 - Synaptics RMI4 driver's PS/2 guest handling ha beed updated to
   improve chances of detecting trackpoints on the pass-through port

 - mms114 touchcsreen controller driver has been updated to support
   generic device properties and work with mms152 cntrollers

 - Goodix driver now supports generic touchscreen properties

 - couple of drivers for AVR32 architecture are gone as the architecture
   support has been removed from the kernel

 - gpio-tilt driver has been removed as there are no mainline users and
   the driver itself is using legacy APIs and relies on platform data

 - MODULE_LINECSE/MODULE_VERSION cleanups

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (45 commits)
  Input: goodix - use generic touchscreen_properties
  Input: mms114 - fix typo in definition
  Input: mms114 - use BIT() macro instead of explicit shifting
  Input: mms114 - replace mdelay with msleep
  Input: mms114 - add support for mms152
  Input: mms114 - drop platform data and use generic APIs
  Input: mms114 - mark as direct input device
  Input: mms114 - do not clobber interrupt trigger
  Input: edt-ft5x06 - fix error handling for factory mode on non-M06
  Input: stmfts - set IRQ_NOAUTOEN to the irq flag
  Input: auo-pixcir-ts - delete an unnecessary return statement
  Input: auo-pixcir-ts - remove custom log for a failed memory allocation
  Input: da9052_tsi - remove unused mutex
  Input: docs - use PROPERTY_ENTRY_U32() directly
  Input: synaptics-rmi4 - log when we create a guest serio port
  Input: synaptics-rmi4 - unmask F03 interrupts when port is opened
  Input: synaptics-rmi4 - do not delete interrupt memory too early
  Input: ad7877 - use managed resource allocations
  Input: stmfts,s6sy671 - add SPDX identifier
  Input: remove atmel-wm97xx touchscreen driver
  ...
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'driver-core-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core</title>
<updated>2018-02-01T18:00:28+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2018-02-01T18:00:28+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=47fcc0360cfb3fe82e4daddacad3c1cd80b0b75d'/>
<id>47fcc0360cfb3fe82e4daddacad3c1cd80b0b75d</id>
<content type='text'>
Pull driver core updates from Greg KH:
 "Here is the set of "big" driver core patches for 4.16-rc1.

  The majority of the work here is in the firmware subsystem, with
  reworks to try to attempt to make the code easier to handle in the
  long run, but no functional change. There's also some tree-wide sysfs
  attribute fixups with lots of acks from the various subsystem
  maintainers, as well as a handful of other normal fixes and changes.

  And finally, some license cleanups for the driver core and sysfs code.

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

* tag 'driver-core-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (48 commits)
  device property: Define type of PROPERTY_ENRTY_*() macros
  device property: Reuse property_entry_free_data()
  device property: Move property_entry_free_data() upper
  firmware: Fix up docs referring to FIRMWARE_IN_KERNEL
  firmware: Drop FIRMWARE_IN_KERNEL Kconfig option
  USB: serial: keyspan: Drop firmware Kconfig options
  sysfs: remove DEBUG defines
  sysfs: use SPDX identifiers
  drivers: base: add coredump driver ops
  sysfs: add attribute specification for /sysfs/devices/.../coredump
  test_firmware: fix missing unlock on error in config_num_requests_store()
  test_firmware: make local symbol test_fw_config static
  sysfs: turn WARN() into pr_warn()
  firmware: Fix a typo in fallback-mechanisms.rst
  treewide: Use DEVICE_ATTR_WO
  treewide: Use DEVICE_ATTR_RO
  treewide: Use DEVICE_ATTR_RW
  sysfs.h: Use octal permissions
  component: add debugfs support
  bus: simple-pm-bus: convert bool SIMPLE_PM_BUS to tristate
  ...
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull driver core updates from Greg KH:
 "Here is the set of "big" driver core patches for 4.16-rc1.

  The majority of the work here is in the firmware subsystem, with
  reworks to try to attempt to make the code easier to handle in the
  long run, but no functional change. There's also some tree-wide sysfs
  attribute fixups with lots of acks from the various subsystem
  maintainers, as well as a handful of other normal fixes and changes.

  And finally, some license cleanups for the driver core and sysfs code.

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

* tag 'driver-core-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (48 commits)
  device property: Define type of PROPERTY_ENRTY_*() macros
  device property: Reuse property_entry_free_data()
  device property: Move property_entry_free_data() upper
  firmware: Fix up docs referring to FIRMWARE_IN_KERNEL
  firmware: Drop FIRMWARE_IN_KERNEL Kconfig option
  USB: serial: keyspan: Drop firmware Kconfig options
  sysfs: remove DEBUG defines
  sysfs: use SPDX identifiers
  drivers: base: add coredump driver ops
  sysfs: add attribute specification for /sysfs/devices/.../coredump
  test_firmware: fix missing unlock on error in config_num_requests_store()
  test_firmware: make local symbol test_fw_config static
  sysfs: turn WARN() into pr_warn()
  firmware: Fix a typo in fallback-mechanisms.rst
  treewide: Use DEVICE_ATTR_WO
  treewide: Use DEVICE_ATTR_RO
  treewide: Use DEVICE_ATTR_RW
  sysfs.h: Use octal permissions
  component: add debugfs support
  bus: simple-pm-bus: convert bool SIMPLE_PM_BUS to tristate
  ...
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge branch 'next' into for-linus</title>
<updated>2018-02-01T08:37:30+00:00</updated>
<author>
<name>Dmitry Torokhov</name>
<email>dmitry.torokhov@gmail.com</email>
</author>
<published>2018-02-01T08:37:30+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=d67ad78e09cbb9935c74a40b85c5abe5b9cd48f8'/>
<id>d67ad78e09cbb9935c74a40b85c5abe5b9cd48f8</id>
<content type='text'>
Prepare input updates for 4.16 merge window.
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Prepare input updates for 4.16 merge window.
</pre>
</div>
</content>
</entry>
<entry>
<title>Input: goodix - use generic touchscreen_properties</title>
<updated>2018-01-31T22:44:40+00:00</updated>
<author>
<name>Marcin Niestroj</name>
<email>m.niestroj@grinn-global.com</email>
</author>
<published>2018-01-26T19:08:59+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=fafef982c7353e8982b951e40573e990ccf0ed00'/>
<id>fafef982c7353e8982b951e40573e990ccf0ed00</id>
<content type='text'>
Use touchscreen_properties structure instead of implementing all
properties by our own. It allows us to reuse generic code for parsing
device-tree properties (which was implemented manually in the driver for
now). Additionally, it allows us to report events using generic
touchscreen_report_pos(), which automatically handles inverted and
swapped axes.

This fixes the issue with the custom code incorrectly handling case where
ts-&gt;inverted_x and ts-&gt;swapped_x_y were true, but ts-&gt;inverted_y was
false. Assuming we have 720x1280 touch panel, ts-&gt;abs_x_max == 1279 and
ts-&gt;abs_y_max == 719 (because we inverted that in goodix_read_config()).
Now let's assume that we received event from (0:0) position (in touch
panel original coordinates). In function goodix_ts_report_touch() we
calculate input_x as 1279, but after swapping input_y takes that value
(which is more that maximum 719 value reported during initialization).

Note that since touchscreen coordinates are 0-indexed, we now report
touchscreen range as (0:size-1).

Developed and tested on custom DT-based device with gt1151 touch
panel.

Signed-off-by: Marcin Niestroj &lt;m.niestroj@grinn-global.com&gt;
[dtor: fix endianness annotation reported by sparse, handle errors when
 initializing MT slots]
Signed-off-by: Dmitry Torokhov &lt;dmitry.torokhov@gmail.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Use touchscreen_properties structure instead of implementing all
properties by our own. It allows us to reuse generic code for parsing
device-tree properties (which was implemented manually in the driver for
now). Additionally, it allows us to report events using generic
touchscreen_report_pos(), which automatically handles inverted and
swapped axes.

This fixes the issue with the custom code incorrectly handling case where
ts-&gt;inverted_x and ts-&gt;swapped_x_y were true, but ts-&gt;inverted_y was
false. Assuming we have 720x1280 touch panel, ts-&gt;abs_x_max == 1279 and
ts-&gt;abs_y_max == 719 (because we inverted that in goodix_read_config()).
Now let's assume that we received event from (0:0) position (in touch
panel original coordinates). In function goodix_ts_report_touch() we
calculate input_x as 1279, but after swapping input_y takes that value
(which is more that maximum 719 value reported during initialization).

Note that since touchscreen coordinates are 0-indexed, we now report
touchscreen range as (0:size-1).

Developed and tested on custom DT-based device with gt1151 touch
panel.

Signed-off-by: Marcin Niestroj &lt;m.niestroj@grinn-global.com&gt;
[dtor: fix endianness annotation reported by sparse, handle errors when
 initializing MT slots]
Signed-off-by: Dmitry Torokhov &lt;dmitry.torokhov@gmail.com&gt;
</pre>
</div>
</content>
</entry>
</feed>
