deliverable/linux.git
9 years agoInput: elantech - support new ICs types for version 4
Sam hung [Thu, 8 Jan 2015 21:22:43 +0000 (13:22 -0800)] 
Input: elantech - support new ICs types for version 4

This change allows the driver to recognize newer Elantech touchpads.

Cc: stable@vger.kernel.org
Signed-off-by: Yi ju Hong <sam.hung@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: i8042 - reset keyboard to fix Elantech touchpad detection
Srihari Vijayaraghavan [Thu, 8 Jan 2015 00:25:53 +0000 (16:25 -0800)] 
Input: i8042 - reset keyboard to fix Elantech touchpad detection

On some laptops, keyboard needs to be reset in order to successfully detect
touchpad (e.g., some Gigabyte laptop models with Elantech touchpads).
Without resettin keyboard touchpad pretends to be completely dead.

Based on the original patch by Mateusz Jończyk this version has been
expanded to include DMI based detection & application of the fix
automatically on the affected models of laptops. This has been confirmed to
fix problem by three users already on three different models of laptops.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=81331
Cc: stable@vger.kernel.org
Signed-off-by: Srihari Vijayaraghavan <linux.bug.reporting@gmail.com>
Acked-by: Mateusz Jończyk <mat.jonczyk@o2.pl>
Tested-by: Srihari Vijayaraghavan <linux.bug.reporting@gmail.com>
Tested by: Zakariya Dehlawi <zdehlawi@gmail.com>
Tested-by: Guillaum Bouchard <guillaum.bouchard@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoMAINTAINERS: remove Dmitry Torokhov's alternate address
Dmitry Torokhov [Mon, 29 Dec 2014 23:58:04 +0000 (15:58 -0800)] 
MAINTAINERS: remove Dmitry Torokhov's alternate address

I am using gmail.com exclusively and mail.ru was a backup that so far was
not needed. To avoid getting 2 copies of the same message let's drop
mail.ru from MAINTAINERS file.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: hil_kbd - fix incorrect use of init_completion
Nicholas Mc Guire [Fri, 26 Dec 2014 23:41:42 +0000 (15:41 -0800)] 
Input: hil_kbd - fix incorrect use of init_completion

The successive init_completion calls should be reinit_completion calls.

Signed-off-by: Nicholas Mc Guire <der.herr@hofr.at>
Acked-by: Helge Deller <deller@gmx.de>
Tested-by: Helge Deller <deller@gmx.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoMerge branch 'next' into for-linus
Dmitry Torokhov [Thu, 18 Dec 2014 18:02:39 +0000 (10:02 -0800)] 
Merge branch 'next' into for-linus

Second round of input updates for 3.19.

9 years agoInput: alps - v7: document the v7 touchpad packet protocol
Hans de Goede [Thu, 18 Dec 2014 17:54:50 +0000 (09:54 -0800)] 
Input: alps - v7: document the v7 touchpad packet protocol

Add a table documenting where all the bits are in the v7 touchpad packets.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: alps - v7: fix finger counting for > 2 fingers on clickpads
Hans de Goede [Thu, 18 Dec 2014 17:55:14 +0000 (09:55 -0800)] 
Input: alps - v7: fix finger counting for > 2 fingers on clickpads

Protocol v7 uses the middle / right button bits on clickpads to communicate
"location" information of a 3th touch (and possible 4th) touch on
clickpads.

Specifically when 3 touches are down, if one of the 3 touches is in the
left / right button area, this will get reported in the middle / right
button bits and the touchpad will still send a TWO type packet rather then
a MULTI type packet, so when this happens we must add the finger reported
in the button area to the finger count.

Likewise we must also add fingers reported this way to the finger count
when we get MULTI packets.

BugLink: https://bugs.freedesktop.org/show_bug.cgi?id=86338
Cc: stable@vger.kernel.org # 3.17
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: alps - v7: sometimes a single touch is reported in mt[1]
Hans de Goede [Thu, 18 Dec 2014 17:53:34 +0000 (09:53 -0800)] 
Input: alps - v7: sometimes a single touch is reported in mt[1]

The v7 proto differentiates between a primary touch (with high precision)
and a secondary touch (with lower precision). Normally when 2 fingers are
down and one is lifted the still present touch becomes the primary touch,
but some traces have shown that this does not happen always.

This commit deals with this by making alps_get_mt_count() not stop at the
first empty mt slot, and if a touch is present in mt[1] and not mt[0]
moving the data to mt[0] (for input_mt_assign_slots).

BugLink: https://bugs.freedesktop.org/show_bug.cgi?id=86338
Cc: stable@vger.kernel.org # 3.17
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: alps - v7: ignore new packets
Hans de Goede [Thu, 18 Dec 2014 17:52:59 +0000 (09:52 -0800)] 
Input: alps - v7: ignore new packets

NEW packets are send to indicate a discontinuity in the finger coordinate
reporting. Specifically a finger may have moved from slot 0 to 1 or vice
versa.  INPUT_MT_TRACK takes care of this for us.

NEW packets have 3 problems:
1) They do not contain middle / right button info (on non clickpads)
   this can be worked around by preserving the old button state
2) They do not contain an accurate fingercount, and they are
   typically send when the number of fingers changes. We cannot use
   the old finger count as that may mismatch with the amount of
   touch coordinates we've available in the NEW packet
3) Their x data for the second touch is inaccurate leading to
   a possible jump of the x coordinate by 16 units when the first
   non NEW packet comes in

Since problems 2 & 3 cannot be worked around, just ignore them.

BugLink: https://bugs.freedesktop.org/show_bug.cgi?id=86338
Cc: stable@vger.kernel.org # 3.17
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: evdev - add CLOCK_BOOTTIME support
Aniroop Mathur [Wed, 17 Dec 2014 23:33:06 +0000 (15:33 -0800)] 
Input: evdev - add CLOCK_BOOTTIME support

This patch adds support for CLOCK_BOOTTIME for input event timestamp.
CLOCK_BOOTTIME includes suspend time, so it would allow aplications
to get correct time difference between two events even when system
resumes from suspend state.

Signed-off-by: Aniroop Mathur <a.mathur@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: psmouse - expose drift duration for IBM trackpoints
haarp [Wed, 17 Dec 2014 23:22:08 +0000 (15:22 -0800)] 
Input: psmouse - expose drift duration for IBM trackpoints

IBM Trackpoints have a feature to compensate for drift by recalibrating
themselves periodically. By default, if for 0.5 seconds there is no change
in position, it's used as the new zero. This duration is too low. Often,
the calibration happens when the trackpoint is in fact being used.

IBM's Trackpoint Engineering Specifications show a configuration register
that allows changing this duration, rstdft1.

Expose it via sysfs among the other settings.

Signed-off-by: Mike Murdoch <main.haarp@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: stmpe - bias keypad columns properly
Linus Walleij [Tue, 16 Dec 2014 06:23:40 +0000 (22:23 -0800)] 
Input: stmpe - bias keypad columns properly

All keypad column pins used as inputs should be pulled up on the STMPE24xx,
but this is not done by the current driver.  Add some logic that will do
this properly. The STMPE1601 also has a keypad controller, but explicitly
does *NOT* require you to set up any pull-ups.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: stmpe - enforce device tree only mode
Linus Walleij [Tue, 4 Nov 2014 00:51:26 +0000 (16:51 -0800)] 
Input: stmpe - enforce device tree only mode

The STMPE keypad controller is only used with device tree configured
systems, so force the configuration to come from device tree only, and now
actually get the rows and cols from the device tree too.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agomfd: stmpe: add pull up/down register offsets for STMPE
Linus Walleij [Tue, 4 Nov 2014 00:48:47 +0000 (16:48 -0800)] 
mfd: stmpe: add pull up/down register offsets for STMPE

This adds the register offsets for pull up/down for the STMPE
1601, 1801 and 24xx expanders. This is used to bias GPIO lines
and keypad lines.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: optimize events_per_packet count calculation
Anshul Garg [Sat, 13 Dec 2014 19:58:23 +0000 (11:58 -0800)] 
Input: optimize events_per_packet count calculation

This patch avoids unnecessary operations while estimating events per
packet for an input device when event type is not set.

Signed-off-by: Anshul Garg <anshul.g@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: edt-ft5x06 - fixed a macro coding style issue
Asaf Vertz [Sat, 13 Dec 2014 18:59:04 +0000 (10:59 -0800)] 
Input: edt-ft5x06 - fixed a macro coding style issue

Fixed a coding style error, macros with complex values should be
enclosed in parentheses.

Signed-off-by: Asaf Vertz <asaf.vertz@tandemg.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: gpio_keys - replace timer and workqueue with delayed workqueue
Dmitry Torokhov [Sat, 15 Nov 2014 01:32:01 +0000 (17:32 -0800)] 
Input: gpio_keys - replace timer and workqueue with delayed workqueue

We do not need to roll our own implementation of delayed work now that we
have proper implementation of mod_delayed_work.

For interrupt-only driven buttons we retain the timer, but we rename
it to release_timer to better reflect its purpose.

Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: gpio_keys - allow separating gpio and irq in device tree
Dmitry Torokhov [Fri, 14 Nov 2014 23:57:09 +0000 (15:57 -0800)] 
Input: gpio_keys - allow separating gpio and irq in device tree

This change allows specify interrupt for buttons separately form gpio,
potentially allowing to form several "clusters" of buttons on
different interrupts.

Button defined without both gpio and irq in device tree is a hared error
instead of a warning now.

Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoMerge branch 'next' into for-linus
Dmitry Torokhov [Tue, 16 Dec 2014 04:32:42 +0000 (20:32 -0800)] 
Merge branch 'next' into for-linus

Prepare input updates for 3.19.

9 years agoInput: gpio_keys - fix warning regarding uninitialized 'button' variable
Fabio Estevam [Sat, 13 Dec 2014 19:02:08 +0000 (11:02 -0800)] 
Input: gpio_keys - fix warning regarding uninitialized 'button' variable

Commit af906faabcf91eb1 ("Input: gpio_keys - fix warning regarding uninitialized
'irq' variable") introduced the following build warning:

drivers/input/keyboard/gpio_keys.c:625:16: warning: 'button' may be used uninitialized in this function [-Wmaybe-uninitialized]

Move the 'button' initialization to a proper location to avoid such warning.

Reported-by: Olof's autobuilder <build@lixom.net>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: add support for Elan eKTH I2C touchscreens
Scott Liu [Thu, 20 Nov 2014 01:26:44 +0000 (17:26 -0800)] 
Input: add support for Elan eKTH I2C touchscreens

This driver supports Elan eKTH I2C touchscreen controllers. Note that these
are using custom protocol, as opposed to other Elan parts that use
HID-over-I2C and are supported by the standard HID-multitouch driver.

Signed-off-by: Scott Liu <scott.liu@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: gpio_keys - fix warning regarding uninitialized 'irq' variable
Dmitry Torokhov [Mon, 8 Dec 2014 06:42:45 +0000 (22:42 -0800)] 
Input: gpio_keys - fix warning regarding uninitialized  'irq' variable

Commit f2d347ff70be453e ("Input: gpio_keys - add device tree support for
interrupt only keys") caused the following build warning:

drivers/input/keyboard/gpio_keys.c: In function 'gpio_keys_probe':
drivers/input/keyboard/gpio_keys.c:647:15: warning: 'irq' may be used uninitialized in this function [-Wmaybe-uninitialized]
drivers/input/keyboard/gpio_keys.c:622:7: note: 'irq' was declared here

Move button->irq initialization into proper branch and get rid of the
temporary.

Reported-by: Olof's autobuilder <build@lixom.net>
Reported-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: cyapa - use 'error' for error codes
Dudley Du [Thu, 4 Dec 2014 15:00:03 +0000 (07:00 -0800)] 
Input: cyapa - use 'error' for error codes

Let's use 'error' variable instead of 'ret' when we need to store erro
codes.

Signed-off-by: Dudley Du <dudley.dulixin@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: cyapa - fix resuming the device
Dudley Du [Wed, 3 Dec 2014 23:29:34 +0000 (15:29 -0800)] 
Input: cyapa - fix resuming the device

Chage b1cfa7b4388285c0f0b486f152ab0cb18612c779 tried to get away form using
irq in cyapa structure and use client->irq instead, but missed a couple of
spots making the touchpad inoperative after resume.

Reported-by: Jeremiah Mahler <jmmahler@gmail.com>
Signed-off-by: Dudley Du <dudley.dulixin@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: gpio_keys - add device tree support for interrupt only keys
Alexander Stein [Tue, 25 Nov 2014 19:53:45 +0000 (11:53 -0800)] 
Input: gpio_keys - add device tree support for interrupt only keys

This features already exists for board config setups. Add support for
device tree based systems.

Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: amikbd - allocate temporary keymap buffer on the stack
Geert Uytterhoeven [Wed, 3 Dec 2014 22:59:49 +0000 (14:59 -0800)] 
Input: amikbd - allocate temporary keymap buffer on the stack

Allocate the temporary buffer needed for initialization of the console
keyboard maps (512 bytes, as NR_KEYS = 256) on the stack instead of
statically, to reduce kernel size.

add/remove: 0/1 grow/shrink: 0/0 up/down: 0/-512 (-512)
function                                     old     new   delta
temp_map                                     512       -    -512

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: amikbd - fix build if !CONFIG_HW_CONSOLE
Geert Uytterhoeven [Wed, 3 Dec 2014 22:52:58 +0000 (14:52 -0800)] 
Input: amikbd - fix build if !CONFIG_HW_CONSOLE

If CONFIG_HW_CONSOLE is not set:

drivers/built-in.o: In function `amikbd_probe':
amikbd.c:(.init.text+0x3e4e): undefined reference to `key_maps'
amikbd.c:(.init.text+0x3dd4): undefined reference to `key_maps'

To fix this, extract the initialization of the console keyboard maps
into amikbd_init_console_keymaps(), protected by #ifdef
CONFIG_HW_CONSOLE.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: lm8323 - missing error check in lm8323_set_disable()
Dan Carpenter [Wed, 3 Dec 2014 05:55:53 +0000 (21:55 -0800)] 
Input: lm8323 - missing error check in lm8323_set_disable()

The missing error handling here is not especially harmful but static
checkers complain that "i" can be used uninitialized.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: initialize device counter variables with -1
Aniroop Mathur [Wed, 3 Dec 2014 22:27:42 +0000 (14:27 -0800)] 
Input: initialize device counter variables with -1

Let's initialize atomic_t variables keeping track of number of various
devices created so far with -1 in order to avoid extra subtraction
operation.

Signed-off-by: Aniroop Mathur <aniroop.mathur@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: initialize input_no to -1 to avoid subtraction
Aniroop Mathur [Tue, 2 Dec 2014 23:22:28 +0000 (15:22 -0800)] 
Input: initialize input_no to -1 to avoid subtraction

Let's initializes input_no to -1 in order to avoid extra subtraction
operation performed every time we allocate an input device.

Signed-off-by: Aniroop Mathur <aniroop.mathur@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: i8042 - do not try to load on Intel NUC D54250WYK
Todor Minchev [Tue, 2 Dec 2014 23:16:39 +0000 (15:16 -0800)] 
Input: i8042 - do not try to load on Intel NUC D54250WYK

The Intel NUC D54250WYK has no PS/2 controller, however the DSDT declares
PS/2 devices which trigger the loading of the i8042 driver.

Signed-off-by: Todor Minchev <todor.minchev@intel.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: xpad - use proper endpoint type
Greg Kroah-Hartman [Tue, 25 Nov 2014 08:38:17 +0000 (00:38 -0800)] 
Input: xpad - use proper endpoint type

The xpad wireless endpoint is not a bulk endpoint on my devices, but
rather an interrupt one, so the USB core complains when it is submitted.
I'm guessing that the author really did mean that this should be an
interrupt urb, but as there are a zillion different xpad devices out
there, let's cover out bases and handle both bulk and interrupt
endpoints just as easily.

Signed-off-by: "Pierre-Loup A. Griffais" <pgriffais@valvesoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: elantech - trust firmware about trackpoint presence
Dmitry Torokhov [Thu, 20 Nov 2014 07:33:07 +0000 (23:33 -0800)] 
Input: elantech - trust firmware about trackpoint presence

Only try to parse data as coming from trackpoint if firmware told us that
trackpoint is present.

Fixes commit caeb0d37fa3e387eb0dd22e5d497523c002033d1

Reported-and-tested-by: Marcus Overhagen <marcus.overhagen@gmail.com>
Reported-and-tested-by: Anders Kaseorg <andersk@mit.edu>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: atkbd - correct MSC_SCAN events for force_release keys
Stefan Brüns [Mon, 17 Nov 2014 02:16:12 +0000 (18:16 -0800)] 
Input: atkbd - correct MSC_SCAN events for force_release keys

Without the change either no scancode would be reported on release of
force_release keys, or - if the key is marked as force_release erroneously
- the release event and the scancode would be reported in separate reports
to the input layer.

Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: synaptics - adjust min/max on Thinkpad E540
Ben Sagal [Mon, 17 Nov 2014 01:23:40 +0000 (17:23 -0800)] 
Input: synaptics - adjust min/max on Thinkpad E540

The LEN2006 Synaptics touchpad (as found in Thinkpad E540) returns wrong
min max values.

touchpad-edge-detector output:
>  Touchpad SynPS/2 Synaptics TouchPad on /dev/input/event6
>  Move one finger around the touchpad to detect the actual edges
>  Kernel says:    x [1472..5674], y [1408..4684]
>  Touchpad sends: x [1264..5675], y [1171..4688]

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=88211
Cc: stable@vger.kernel.org
Signed-off-by: Binyamin Sagal <bensagal@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: elantech - update the documentation
Ulrik De Bie [Fri, 14 Nov 2014 01:48:06 +0000 (17:48 -0800)] 
Input: elantech - update the documentation

A chapter is added to describe the trackpoint packets.

A section is added to describe the behaviour of the knob crc_enabled in
sysfs.

The introduction of the documentation only mentioned v1/v2, but in the
last part it already contains explanation of v3 and v4. The introduction
is updated.

Signed-off-by: Ulrik De Bie <ulrik.debie-os@e2big.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: elantech - provide a sysfs knob for crc_enabled
Ulrik De Bie [Fri, 14 Nov 2014 01:47:04 +0000 (17:47 -0800)] 
Input: elantech - provide a sysfs knob for crc_enabled

The detection of crc_enabled is known to fail for Fujitsu H730. A DMI
blacklist is added for that, but it can be expected that other laptops will
pop up with this.

Here a sysfs knob is provided to alter the behaviour of crc_enabled.
Writing 0 or 1 to it sets the variable to 0 or 1. Reading it will show the
crc_enabled variable (0 or 1).

Reported-by: Stefan Valouch <stefan@valouch.com>
Signed-off-by: Ulrik De Bie <ulrik.debie-os@e2big.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: elantech - report the middle button of the touchpad
Ulrik De Bie [Fri, 14 Nov 2014 01:45:12 +0000 (17:45 -0800)] 
Input: elantech - report the middle button of the touchpad

In the past, no elantech was known with 3 touchpad mouse buttons.
Fujitsu H730 is the first known elantech with a middle button. This commit
enables this middle button. For backwards compatibility, the Fujitsu is
detected via DMI, and only for this one 3 buttons will be announced.

Reported-by: Stefan Valouch <stefan@valouch.com>
Signed-off-by: Ulrik De Bie <ulrik.debie-os@e2big.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: alps - ignore bad data on Dell Latitudes E6440 and E7440
Pali Rohár [Sun, 9 Nov 2014 07:36:09 +0000 (23:36 -0800)] 
Input: alps - ignore bad data on Dell Latitudes E6440 and E7440

Sometimes on Dell Latitude laptops psmouse/alps driver receive invalid ALPS
protocol V3 packets with bit7 set in last byte. More often it can be
reproduced on Dell Latitude E6440 or E7440 with closed lid and pushing
cover above touchpad.

If bit7 in last packet byte is set then it is not valid ALPS packet. I was
told that ALPS devices never send these packets. It is not know yet who
send those packets, it could be Dell EC, bug in BIOS and also bug in
touchpad firmware...

With this patch alps driver does not process those invalid packets, but
instead of reporting PSMOUSE_BAD_DATA, getting into out of sync state,
getting back in sync with the next byte and spam dmesg we return
PSMOUSE_FULL_PACKET. If driver is truly out of sync we'll fail the checks
on the next byte and report PSMOUSE_BAD_DATA then.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Tested-by: Pali Rohár <pali.rohar@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: cyapa - switch to using managed resources
Dudley Du [Sun, 9 Nov 2014 20:36:34 +0000 (12:36 -0800)] 
Input: cyapa - switch to using managed resources

Use of managed resources simplifies error handling and device removal code.

Signed-off-by: Dudley Du <dudl@cypress.com>
[Dmitry: added open/close methods so cyapa_remove is no longer needed.]
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: lifebook - use "static inline" instead of "inline" in lifebook.h
Chen Gang [Sun, 9 Nov 2014 21:31:11 +0000 (13:31 -0800)] 
Input: lifebook - use "static inline" instead of "inline" in lifebook.h

For functions defined in header files we should use static inline rather
than inline, which breaks under the latest upstream gcc (which is really
gcc issue, but static inline is better suited regardless).

The related error (with allmodconfig under tile):

    MODPOST 4002 modules
  ERROR: "lifebook_detect" [drivers/input/mouse/psmouse.ko] undefined!

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: alps - allow up to 2 invalid packets without resetting device
Pali Rohár [Sat, 8 Nov 2014 20:58:57 +0000 (12:58 -0800)] 
Input: alps - allow up to 2 invalid packets without resetting device

On some Dell Latitude laptops ALPS device or Dell EC send one invalid byte
in 6 bytes ALPS packet. In this case psmouse driver enter out of sync
state. It looks like that all other bytes in packets are valid and also
device working properly. So there is no need to do full device reset, just
need to wait for byte which match condition for first byte (start of
packet). Because ALPS packets are bigger (6 or 8 bytes) default limit is
small.

This patch increase number of invalid bytes to size of 2 ALPS packets which
psmouse driver can drop before do full reset.

Resetting ALPS devices take some time and when doing reset on some Dell
laptops touchpad, trackstick and also keyboard do not respond. So it is
better to do it only if really necessary.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Tested-by: Pali Rohár <pali.rohar@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: alps - ignore potential bare packets when device is out of sync
Pali Rohár [Sat, 8 Nov 2014 20:45:23 +0000 (12:45 -0800)] 
Input: alps - ignore potential bare packets when device is out of sync

5th and 6th byte of ALPS trackstick V3 protocol match condition for first
byte of PS/2 3 bytes packet. When driver enters out of sync state and ALPS
trackstick is sending data then driver match 5th, 6th and next 1st bytes as
PS/2.

It basically means if user is using trackstick when driver is in out of
sync state driver will never resync. Processing these bytes as 3 bytes PS/2
data cause total mess (random cursor movements, random clicks) and make
trackstick unusable until psmouse driver decide to do full device reset.

Lot of users reported problems with ALPS devices on Dell Latitude E6440,
E6540 and E7440 laptops. ALPS device or Dell EC for unknown reason send
some invalid ALPS PS/2 bytes which cause driver out of sync. It looks like
that i8042 and psmouse/alps driver always receive group of 6 bytes packets
so there are no missing bytes and no bytes were inserted between valid
ones.

This patch does not fix root of problem with ALPS devices found in Dell
Latitude laptops but it does not allow to process some (invalid)
subsequence of 6 bytes ALPS packets as 3 bytes PS/2 when driver is out of
sync.

So with this patch trackstick input device does not report bogus data when
also driver is out of sync, so trackstick should be usable on those
machines.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Tested-by: Pali Rohár <pali.rohar@gmail.com>
Cc: stable@vger.kernel.org
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: elantech - fix crc_enabled for Fujitsu H730
Ulrik De Bie [Sat, 8 Nov 2014 07:57:34 +0000 (23:57 -0800)] 
Input: elantech - fix crc_enabled for Fujitsu H730

The Fujitsu H730 does not work with crc_enabled = 0, even though the
crc_enabled bit in the firmware version indicated it would. When switching
this value to crc_enabled to 1, the touchpad works. This patch uses DMI to
detect H730.

Reported-by: Stefan Valouch <stefan@valouch.com>
Tested-by: Stefan Valouch <stefan@valouch.com>
Tested-by: Alfredo Gemma <alfredo.gemma@gmail.com>
Signed-off-by: Ulrik De Bie <ulrik.debie-os@e2big.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: elantech - use elantech_report_trackpoint for hardware v4 too
Ulrik De Bie [Sat, 8 Nov 2014 07:51:34 +0000 (23:51 -0800)] 
Input: elantech - use elantech_report_trackpoint for hardware v4 too

The Fujitsu H730 has hardware v4 with a trackpoint. This enables the
elantech_report_trackpoint for v4.

Reported-by: Stefan Valouch <stefan@valouch.com>
Tested-by: Stefan Valouch <stefan@valouch.com>
Tested-by: Alfredo Gemma <alfredo.gemma@gmail.com>
Signed-off-by: Ulrik De Bie <ulrik.debie-os@e2big.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: twl4030-pwrbutton - ensure a wakeup event is recorded.
NeilBrown [Fri, 7 Nov 2014 23:46:56 +0000 (15:46 -0800)] 
Input: twl4030-pwrbutton - ensure a wakeup event is recorded.

This button is treated as a wakeup source, so we need to initialise it
correctly.

Without the device_init_wakeup() call, dev->power.wakeup will
be NULL, and pm_wakeup_event() will do nothing.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: synaptics - add min/max quirk for Lenovo T440s
Takashi Iwai [Thu, 6 Nov 2014 17:27:11 +0000 (09:27 -0800)] 
Input: synaptics - add min/max quirk for Lenovo T440s

The new Lenovo T440s laptop has a different PnP ID "LEN0039", and it
needs the similar min/max quirk to make its clickpad working.

BugLink: https://bugzilla.opensuse.org/show_bug.cgi?id=903748
Reported-and-tested-by: Joschi Brauchle <joschibrauchle@gmx.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: touchscreen - use __maybe_unused instead of ifdef around suspend/resume
Jingoo Han [Sun, 2 Nov 2014 07:04:14 +0000 (00:04 -0700)] 
Input: touchscreen - use __maybe_unused instead of ifdef around suspend/resume

Use __maybe_unused instead of ifdef guards around suspend/resume
functions, in order to increase build coverage and fix build warnings.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: mouse - use __maybe_unused instead of ifdef around suspend/resume
Jingoo Han [Sun, 2 Nov 2014 07:03:37 +0000 (00:03 -0700)] 
Input: mouse - use __maybe_unused instead of ifdef around suspend/resume

Use __maybe_unused instead of ifdef guards around suspend/resume
functions, in order to increase build coverage and fix build warnings.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: misc - use __maybe_unused instead of ifdef around suspend/resume
Jingoo Han [Sun, 2 Nov 2014 07:02:46 +0000 (00:02 -0700)] 
Input: misc - use __maybe_unused instead of ifdef around suspend/resume

Use __maybe_unused instead of ifdef guards around suspend/resume
functions, in order to increase build coverage and fix build warnings.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: cap11xx - support for irq-active-high option
Matt Ranostay [Sat, 1 Nov 2014 03:02:08 +0000 (20:02 -0700)] 
Input: cap11xx - support for irq-active-high option

Some applications need to use the irq-active-high push-pull option.
This allows it be enabled in the device tree child node.

Signed-off-by: Matt Ranostay <mranostay@gmail.com>
Reviewed-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: cap11xx - add support for various cap11xx devices
Matt Ranostay [Sat, 1 Nov 2014 03:01:37 +0000 (20:01 -0700)] 
Input: cap11xx - add support for various cap11xx devices

There are variants of the cap11xx device with a varying number of
capacitance detection channels.

Signed-off-by: Matt Ranostay <mranostay@gmail.com>
Reviewed-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: rename cap1106 driver to cap11xx
Matt Ranostay [Sat, 1 Nov 2014 03:00:13 +0000 (20:00 -0700)] 
Input: rename cap1106 driver to cap11xx

There are several devices in cap11xx family besides cap1106. The driver can
be made to support all of them, so let's give it more generic name.

Signed-off-by: Matt Ranostay <mranostay@gmail.com>
Reviewed-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: altera_ps2 - switch to using managed resources
Tobias Klauser [Fri, 31 Oct 2014 16:16:51 +0000 (09:16 -0700)] 
Input: altera_ps2 - switch to using managed resources

Use them devm_ managed resources API to simplify error handling in
altera_ps2_probe() and to reduce the size of altera_ps2_remove() and the
ps2if struct.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: add driver for the Goodix touchpanel
Bastien Nocera [Fri, 31 Oct 2014 16:26:16 +0000 (09:26 -0700)] 
Input: add driver for the Goodix touchpanel

Add a driver for the Goodix touchscreen panel found in Onda v975w tablets.
The driver is based off the Android driver gt9xx.c found in some Android
code dumps, but now bears no resemblance to the original driver.

The driver was tested on the aforementioned tablet.

Signed-off-by: Bastien Nocera <hadess@hadess.net>
Tested-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoRevert "Input: i8042 - disable active multiplexing by default"
Dmitry Torokhov [Fri, 31 Oct 2014 16:35:53 +0000 (09:35 -0700)] 
Revert "Input: i8042 - disable active multiplexing by default"

This reverts commit 68da166491655bc54051bf04c78ce648e2e33508.

It turns out that the assertion about scope of regressions due to
always keeping keyboard controller in legacy mode was proven wrong.
There are laptops, such as Clevo W650SH, that only have internal
touchpad (no external PS/2 ports), that require active multiplexing
mode to switch the touchpad (Elantech) into native mode instead of
basic PS/2 emulation.

Reported-by: Roel Aaij <roel.aaij@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: altera_ps2 - use correct type for irq return value
Tobias Klauser [Fri, 31 Oct 2014 16:16:41 +0000 (09:16 -0700)] 
Input: altera_ps2 - use correct type for irq return value

The irq function altera_ps2_rxint returns an irqreturn_t, so use the
same type for variable storing the return value.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: altera_ps2 - write to correct register when disabling interrupts
Tobias Klauser [Fri, 31 Oct 2014 16:16:19 +0000 (09:16 -0700)] 
Input: altera_ps2 - write to correct register when disabling interrupts

In altera_ps2_close, the data register (offset 0) is written instead of
the control register (offset 4), leading to the RX interrupt not being
disabled. Fix this by calling writel() with the offset for the proper
register.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: max77693-haptic - fix potential overflow
Dmitry Torokhov [Tue, 28 Oct 2014 16:27:58 +0000 (09:27 -0700)] 
Input: max77693-haptic - fix potential overflow

Expression haptic->pwm_dev->period * haptic->magnitude is of type
'unsigned int' and may overflow. We need to convert one of the operands
to u64 before multiplying, instead of casting result (potentially
overflown) to u64.

Reported by Coverity: CID 1248753

Acked-by : Jaewon Kim <jaewon02.kim@samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: psmouse - remove unneeded check in psmouse_reconnect()
Dmitry Torokhov [Sat, 25 Oct 2014 00:20:27 +0000 (17:20 -0700)] 
Input: psmouse - remove unneeded check in psmouse_reconnect()

psmouse_reconnect() will not be called if psmouse driver is not bound to
the serio port, so there is no point in checking that.  Also, as coded, it
introduces potential NULL dereference in psmouse_dbg() in case psmouse is
indeed NULL. Let's just remove it.

Detected by Coverity: CID 146528

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: vsxxxaa - fix code dropping bytes from queue
Dmitry Torokhov [Fri, 24 Oct 2014 22:33:53 +0000 (15:33 -0700)] 
Input: vsxxxaa - fix code dropping bytes from queue

I believe the intent of the code was to drop oldest bytes from the queue,
not the latest if we drop one byte and both latest and some oldest of we
are dropping more than one.

Acked-by: Jan-Benedict Glaw <jbglaw@lug-owl.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: ims-pcu - fix dead code in ims_pcu_ofn_reg_addr_store()
Dmitry Torokhov [Fri, 24 Oct 2014 22:10:47 +0000 (15:10 -0700)] 
Input: ims-pcu - fix dead code in ims_pcu_ofn_reg_addr_store()

Coverity pointed out that at return point error is always 0 so the
conditional is not needed.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: opencores-kbd - fix error handling
Dmitry Torokhov [Fri, 24 Oct 2014 21:27:25 +0000 (14:27 -0700)] 
Input: opencores-kbd - fix error handling

When I was adjusting patch in 848d479361793edb79aa68140cb64d4ec9032d88 to
use devm_ioremap_resource() I messed it up.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: wm97xx - adapt parameters to tosa touchscreen.
Dmitry Eremin-Solenikov [Fri, 24 Oct 2014 22:34:39 +0000 (15:34 -0700)] 
Input: wm97xx - adapt parameters to tosa touchscreen.

Sharp SL-6000 (tosa) touchscreen needs wider limits to properly map all
points on the screen. Expand ranges in abs_x and abs_y arrays according
to the touchscreen area.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: i8042 - quirks for Fujitsu Lifebook A544 and Lifebook AH544
Hans de Goede [Fri, 24 Oct 2014 21:55:24 +0000 (14:55 -0700)] 
Input: i8042 - quirks for Fujitsu Lifebook A544 and Lifebook AH544

These models need i8042.notimeout, otherwise the touchpad will not work.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=69731
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1111138
Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: stmpe-keypad - fix valid key line bitmask
Linus Walleij [Fri, 24 Oct 2014 21:36:54 +0000 (14:36 -0700)] 
Input: stmpe-keypad - fix valid key line bitmask

The bitmask comment says it will enable GPIO 8-14 and 16-20 for keypad use,
but it actually enables GPIO 8-11 and 13-20 due to a bit error.

Instead of masking of the "hole" at GPIO 12 (which is used for keypad
output 4) mask of the proper "hole" at GPIO 15.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: soc_button_array - update calls to gpiod_get*()
Alexandre Courbot [Thu, 23 Oct 2014 15:53:13 +0000 (08:53 -0700)] 
Input: soc_button_array - update calls to gpiod_get*()

Add the new flags argument to calls of (devm_)gpiod_get*().

Currently both forms (with or without the flags argument) are valid thanks
to transitional macros in <linux/gpio/consumer.h>. These macros will be
removed once all consumers are updated and the flags argument will become
compulsory.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: add driver for Elan I2C/SMbus touchpad
Duson Lin [Fri, 3 Oct 2014 20:24:27 +0000 (13:24 -0700)] 
Input: add driver for Elan I2C/SMbus touchpad

This driver supports Elan I2C/SMbus touchpads found in some laptops and
also in many Chromebooks.

Signed-off-by: Duson Lin <dusonlin@emc.com.tw>
Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: lpc32xx-keys - switch to using managed resources
Pramod Gurav [Wed, 8 Oct 2014 18:26:29 +0000 (11:26 -0700)] 
Input: lpc32xx-keys - switch to using managed resources

This change switches to using devm_* managed resources APIs to
request the resources in probe to simplify probe error path and
module unloading.

Signed-off-by: Pramod Gurav <pramod.gurav@smartplayin.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: pxa27x_keypad - switch to using managed resources
Pramod Gurav [Wed, 8 Oct 2014 18:19:43 +0000 (11:19 -0700)] 
Input: pxa27x_keypad - switch to using managed resources

This change switches ithe driver to use devm_* APIs to allocate resources.
This helps to simplify failure path in probe function and module unloading
and does away with remove function.

Signed-off-by: Pramod Gurav <pramod.gurav@smartplayin.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: mpr121 - switch to using managed resources
Pramod Gurav [Wed, 8 Oct 2014 18:14:10 +0000 (11:14 -0700)] 
Input: mpr121 - switch to using managed resources

This change switches the driver to use devm_* managed resources APIs to
request the resources in probe to simplify probe error path and module
unloading and does away with remove function.

Signed-off-by: Pramod Gurav <pramod.gurav@smartplayin.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: xpad - add Thrustmaster as Xbox 360 controller vendor
Tommi Rantala [Thu, 16 Oct 2014 21:02:07 +0000 (14:02 -0700)] 
Input: xpad - add Thrustmaster as Xbox 360 controller vendor

Add Thrustmaster as Xbox 360 controller vendor. This is required for
example to make the GP XID (044f:b326) gamepad work.

Signed-off-by: Tommi Rantala <tt.rantala@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: xpad - add USB ID for Thrustmaster Ferrari 458 Racing Wheel
Tommi Rantala [Thu, 16 Oct 2014 21:01:43 +0000 (14:01 -0700)] 
Input: xpad - add USB ID for Thrustmaster Ferrari 458 Racing Wheel

Add the USB ID for the Xbox 360 Thrustmaster Ferrari 458 Racing Wheel.

Signed-off-by: Tommi Rantala <tt.rantala@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: max77693-haptic - fix state check in imax77693_haptic_disable()
Jaewon Kim [Thu, 16 Oct 2014 20:56:52 +0000 (13:56 -0700)] 
Input: max77693-haptic - fix state check in imax77693_haptic_disable()

The check to see whether the device is already disabled in
max77693_haptic_disable() was inversed, this change corrects it.

Signed-off-by: Jaewon Kim <jaewon02.kim@samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: xen-kbdfront - free grant table entry in xenkbd_disconnect_backend
Chang Huaixin [Thu, 16 Oct 2014 20:33:24 +0000 (13:33 -0700)] 
Input: xen-kbdfront - free grant table entry in xenkbd_disconnect_backend

xenkbd_disconnect_backend doesn't free grant table entry.  This bug affects
live migration.

xenkbd_disconnect_backend uses gnttab_end_foreign_access_ref to handle
grant table entry which doesn't really free an entry.

Thus every time we do xenkbd_resume, grant table entry increses by one. As
an grant table entry occupies 8 bytes, an grant table page has at most 512
entries. Every 512 times we do xenkdb_resume, grant table pages increses by
one.

After around 3500 times of live migration, grant table pages will increase
by 7, causing too many pages to populate and hitting max_pages limit when
assigning pages.Thus assign_pages will fail, so will live migration.

Signed-off-by: Chang Huaixin <huaixin.chx@alibaba-inc.com>
Acked-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: alps - fix v4 button press recognition
Andreas Bosch [Wed, 15 Oct 2014 17:44:50 +0000 (10:44 -0700)] 
Input: alps - fix v4 button press recognition

Since the change to struct input_mt_pos some variables are now bitfields
instead of integers. Automatic conversion from integer to bitfield entry
destroys information, therefore enforce boolean interpretation instead.

Link: https://bugzilla.redhat.com/show_bug.cgi?id=1114768
Fixes: 02d04254a5df ("Input: alps - use struct input_mt_pos to track coordinates")
Signed-off-by: Andreas Bosch <linux@progandy.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoMerge branch 'next' into for-linus
Dmitry Torokhov [Sat, 11 Oct 2014 18:41:19 +0000 (11:41 -0700)] 
Merge branch 'next' into for-linus

Prepare second round of input updates for 3.18.

10 years agoInput: i8042 - disable active multiplexing by default
Dmitry Torokhov [Fri, 10 Oct 2014 19:19:03 +0000 (12:19 -0700)] 
Input: i8042 - disable active multiplexing by default

Active multiplexing is a nice feature as it allows several pointing devices
(such as touchpad and external mouse) use their native protocols at the
same time. Unfortunately many manufacturers do not implement the feature
properly even though they advertise it. The problematic implementations are
never fixed, since Windows by default does not use this mode, and move from
one BIOS/model of laptop to another. When active multiplexing is broken
turning it on usually results in touchpad, keyboard, or both unresponsive.

With PS/2 usage on decline (most of PS/2 devices in use nowadays are
internal laptop touchpads), I expect number of users who have laptops with
working MUX implementation, docking stations with external PS/2 ports, and
who are still using external PS/2 mice, to be rather small. Let's flip the
default to be OFF and allow activating it through i8042.nomux=0 kernel
option.  We'll also keep DMI table where we can record known good models.

Acked-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: i8042 - add noloop quirk for Asus X750LN
Hans de Goede [Sat, 11 Oct 2014 18:27:37 +0000 (11:27 -0700)] 
Input: i8042 - add noloop quirk for Asus X750LN

Without this the aux port does not get detected, and consequently the
touchpad will not work.

https://bugzilla.redhat.com/show_bug.cgi?id=1110011

Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: synaptics - gate forcepad support by DMI check
Dmitry Torokhov [Tue, 2 Sep 2014 16:49:18 +0000 (09:49 -0700)] 
Input: synaptics - gate forcepad support by DMI check

Unfortunately, ForcePad capability is not actually exported over PS/2, so
we have to resort to DMI checks.

Cc: stable@vger.kernel.org
Reported-by: Nicole Faerber <nicole.faerber@kernelconcepts.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoMerge tag 'v3.17' into next
Dmitry Torokhov [Sat, 11 Oct 2014 18:34:07 +0000 (11:34 -0700)] 
Merge tag 'v3.17' into next

Synchronize with mainline to bring in changes to Synaptics and i8042
drivers.

10 years agoInput: Add Microchip AR1021 i2c touchscreen
Christian Gmeiner [Wed, 8 Oct 2014 16:22:54 +0000 (09:22 -0700)] 
Input: Add Microchip AR1021 i2c touchscreen

This patch adds support for the ar1021 i2c based touchscreen.
The driver is quite simple and only supports the Touch
Reporting Protocol.

This is the final version for an RFC patch send a while ago.
http://www.spinics.net/lists/linux-input/msg29419.html

Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: cros_ec_keyb - add of match table
Sjoerd Simons [Wed, 8 Oct 2014 18:38:21 +0000 (11:38 -0700)] 
Input: cros_ec_keyb - add of match table

To enable the cros_ec_keyb driver to be auto-loaded when build as
module add an of match table (and export it) to match the modalias
information passed on to userspace as the Cros EC MFD driver registers
the MFD subdevices with an of_compatibility string.

Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: serio - avoid negative serio device numbers
Richard Leitner [Wed, 8 Oct 2014 22:21:32 +0000 (15:21 -0700)] 
Input: serio - avoid negative serio device numbers

Fix the format string for serio device name generation to avoid negative
device numbers when the id exceeds the maximum signed integer value.

Signed-off-by: Richard Leitner <richard.leitner@skidata.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: avoid negative input device numbers
Richard Leitner [Wed, 8 Oct 2014 21:24:15 +0000 (14:24 -0700)] 
Input: avoid negative input device numbers

Fix the format string for input device name generation to avoid negative
device numbers when the id exceeds the maximum signed integer value.

Signed-off-by: Richard Leitner <richard.leitner@skidata.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: automatically set EV_ABS bit in input_set_abs_params
Dmitry Torokhov [Wed, 8 Oct 2014 16:28:32 +0000 (09:28 -0700)] 
Input: automatically set EV_ABS bit in input_set_abs_params

Let's automatically set EV_ABS bit in device's event type list when calling
input_set_abs_params() so that drivers do not have to do it explicitly.

These calls are never in a hot paths so we won't lose much time by setting
the same bit several times.

Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: adp5588-keys - cancel workqueue in failure path
Pramod Gurav [Tue, 7 Oct 2014 16:33:16 +0000 (09:33 -0700)] 
Input: adp5588-keys - cancel workqueue in failure path

In case we start with the device not fully quiesced we should make sure we
cancel the workqueue after freeing interrupt.

Signed-off-by: Pramod Gurav <pramod.gurav@smartplayin.com>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: opencores-kbd - switch to using managed resources
Pramod Gurav [Tue, 7 Oct 2014 16:06:31 +0000 (09:06 -0700)] 
Input: opencores-kbd - switch to using managed resources

This change switch to managed resources to simplifies error handling
and module unloading and does away with platform_driver remove function.

Signed-off-by: Pramod Gurav <pramod.gurav@smartplayin.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: evdev - fix EVIOCG{type} ioctl
Dmitry Torokhov [Mon, 6 Oct 2014 17:55:49 +0000 (10:55 -0700)] 
Input: evdev - fix EVIOCG{type} ioctl

The 'max' size passed into the function is measured in number of bits
(KEY_MAX, LED_MAX, etc) so we need to convert it accordingly before trying
to copy the data out, otherwise we will try copying too much and end up
with up with a page fault.

Reported-by: Pavel Machek <pavel@ucw.cz>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoLinux 3.17
Linus Torvalds [Sun, 5 Oct 2014 19:23:04 +0000 (12:23 -0700)] 
Linux 3.17

10 years agoMerge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds [Sun, 5 Oct 2014 17:16:11 +0000 (10:16 -0700)] 
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "This is a set of two small fixes, both to code which went in during
  the merge window: cxgb4i has a scheduling in atomic bug in its new
  ipv6 code and uas fails to work properly with the new scsi-mq code"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  [SCSI] uas: disable use of blk-mq I/O path
  [SCSI] cxgb4i: avoid holding mutex in interrupt context

10 years agoMerge tag 'tiny/kconfig-for-3.17' of https://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 4 Oct 2014 16:32:47 +0000 (09:32 -0700)] 
Merge tag 'tiny/kconfig-for-3.17' of https://git./linux/kernel/git/josh/linux

Pull kconfig fixes for tiny setups from Josh Triplett:
 "Two Kconfig bugfixes for 3.17 related to tinification.  These fixes
  make the Kconfig "General Setup" menu much more usable"

* tag 'tiny/kconfig-for-3.17' of https://git.kernel.org/pub/scm/linux/kernel/git/josh/linux:
  init/Kconfig: Fix HAVE_FUTEX_CMPXCHG to not break up the EXPERT menu
  init/Kconfig: Hide printk log config if CONFIG_PRINTK=n

10 years agoinit/Kconfig: Fix HAVE_FUTEX_CMPXCHG to not break up the EXPERT menu
Josh Triplett [Fri, 3 Oct 2014 23:19:24 +0000 (16:19 -0700)] 
init/Kconfig: Fix HAVE_FUTEX_CMPXCHG to not break up the EXPERT menu

commit 03b8c7b623c80af264c4c8d6111e5c6289933666 ("futex: Allow
architectures to skip futex_atomic_cmpxchg_inatomic() test") added the
HAVE_FUTEX_CMPXCHG symbol right below FUTEX.  This placed it right in
the middle of the options for the EXPERT menu.  However,
HAVE_FUTEX_CMPXCHG does not depend on EXPERT or FUTEX, so Kconfig stops
placing items in the EXPERT menu, and displays the remaining several
EXPERT items (starting with EPOLL) directly in the General Setup menu.

Since both users of HAVE_FUTEX_CMPXCHG only select it "if FUTEX", make
HAVE_FUTEX_CMPXCHG itself depend on FUTEX.  With this change, the
subsequent items display as part of the EXPERT menu again; the EMBEDDED
menu now appears as the next top-level item in the General Setup menu,
which makes General Setup much shorter and more usable.

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Cc: stable <stable@vger.kernel.org>
10 years agoinit/Kconfig: Hide printk log config if CONFIG_PRINTK=n
Josh Triplett [Fri, 3 Oct 2014 23:00:54 +0000 (16:00 -0700)] 
init/Kconfig: Hide printk log config if CONFIG_PRINTK=n

The buffers sized by CONFIG_LOG_BUF_SHIFT and
CONFIG_LOG_CPU_MAX_BUF_SHIFT do not exist if CONFIG_PRINTK=n, so don't
ask about their size at all.

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Cc: stable <stable@vger.kernel.org>
10 years agoMerge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa...
Linus Torvalds [Fri, 3 Oct 2014 21:20:44 +0000 (14:20 -0700)] 
Merge branch 'i2c/for-current' of git://git./linux/kernel/git/wsa/linux

Pull i2c fixes from Wolfram Sang:
 "Two i2c driver bugfixes"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: qup: Fix order of runtime pm initialization
  i2c: rk3x: fix 0 length write transfers

10 years agoMerge tag 'trace-fixes-v3.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 3 Oct 2014 20:31:57 +0000 (13:31 -0700)] 
Merge tag 'trace-fixes-v3.17-rc7' of git://git./linux/kernel/git/rostedt/linux-trace

Pull trace ring buffer iterator fix from Steven Rostedt:
 "While testing some new changes for 3.18, I kept hitting a bug every so
  often in the ring buffer.  At first I thought it had to do with some
  of the changes I was working on, but then testing something else I
  realized that the bug was in 3.17 itself.  I ran several bisects as
  the bug was not very reproducible, and finally came up with the commit
  that I could reproduce easily within a few minutes, and without the
  change I could run the tests over an hour without issue.  The change
  fit the bug and I figured out a fix.  That bad commit was:

    Commit 651e22f2701b "ring-buffer: Always reset iterator to reader page"

  This commit fixed a bug, but in the process created another one.  It
  used the wrong value as the cached value that is used to see if things
  changed while an iterator was in use.  This made it look like a change
  always happened, and could cause the iterator to go into an infinite
  loop"

* tag 'trace-fixes-v3.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  ring-buffer: Fix infinite spin in reading buffer

10 years agoMerge branch 'for-linus' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Fri, 3 Oct 2014 20:09:57 +0000 (13:09 -0700)] 
Merge branch 'for-linus' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs/smb3 fixes from Steve French:
 "Fix for CIFS/SMB3 oops on reconnect during readpages (3.17 regression)
  and for incorrectly closing file handle in symlink error cases"

* 'for-linus' of git://git.samba.org/sfrench/cifs-2.6:
  CIFS: Fix readpages retrying on reconnects
  Fix problem recognizing symlinks

10 years agoMerge branch 'next' into for-linus
Dmitry Torokhov [Fri, 3 Oct 2014 18:24:46 +0000 (11:24 -0700)] 
Merge branch 'next' into for-linus

Prepare first round of input updates for 3.18.

10 years agoMerge tag 'md/3.17-final-fix' of git://neil.brown.name/md
Linus Torvalds [Fri, 3 Oct 2014 15:40:37 +0000 (08:40 -0700)] 
Merge tag 'md/3.17-final-fix' of git://neil.brown.name/md

Pull raid5 discard fix from Neil Brown:
 "One fix for raid5 discard issue"

* tag 'md/3.17-final-fix' of git://neil.brown.name/md:
  md/raid5: disable 'DISCARD' by default due to safety concerns.

10 years agoMerge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds [Fri, 3 Oct 2014 15:31:14 +0000 (08:31 -0700)] 
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

Pull drm fixes from Dave Airlie:
 "Nothing too major or scary.

  One i915 regression fix, nouveau has a tmds regression fix, along with
  a regression fix for the runtime pm code for optimus laptops not
  restoring the display hw correctly"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/nouveau: make sure display hardware is reinitialised on runtime resume
  drm/nouveau: punt fbcon resume out to a workqueue
  drm/nouveau: fix regression on original nv50 board
  drm/nv50/disp: fix dpms regression on certain boards
  drm/i915: Flush the PTEs after updating them before suspend

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