deliverable/linux.git
9 years agoInput: ff-core - silence an underflow warning
Dan Carpenter [Tue, 29 Sep 2015 23:02:29 +0000 (16:02 -0700)] 
Input: ff-core - silence an underflow warning

My static checker complains that "value" comes from the user in
evdev_do_ioctl() and we check that it's not too large here but we don't
check that it's negative.  It's harmless because the ->set_gain() and
->set_autocenter() functions truncate it to a valid u16 value, but we
may as well fix it just to make the static checker happy.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: omap4-keypad - fix memory leak
Sudip Mukherjee [Mon, 28 Sep 2015 22:59:22 +0000 (15:59 -0700)] 
Input: omap4-keypad - fix memory leak

If omap4_keypad_parse_dt() fails we returned the error code but we
missed releasing keypad_data.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: db9 - use parallel port device model
Sudip Mukherjee [Mon, 28 Sep 2015 23:09:51 +0000 (16:09 -0700)] 
Input: db9 - use parallel port device model

Modify db9 driver to use the new Parallel Port device model.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Tested-By: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoARM: dts: set up trigger type for edt-ft5x06 interrupts
Dmitry Torokhov [Sat, 12 Sep 2015 17:22:55 +0000 (10:22 -0700)] 
ARM: dts: set up trigger type for edt-ft5x06 interrupts

Now that the driver respects IRQ trigger settings from device tree, let's
fix them up in individual DTSes (note that the driver is still compatible
with older DTSes).

Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: edt-ft5x06 - do not hardcode interrupt trigger type
Dmitry Torokhov [Sat, 12 Sep 2015 17:11:09 +0000 (10:11 -0700)] 
Input: edt-ft5x06 - do not hardcode interrupt trigger type

Instead of hardcoding IRQ trigger type to IRQF_TRIGGER_FALLING, let's
respect settings specified in device tree. To be compatible with older
DTSes, if trigger type is not set up in DTS we'll set it to default
(falling edge).

Tested-by: Franklin S Cooper Jr <fcooper@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: edt-ft5x06 - use generic properties API
Dmitry Torokhov [Sat, 12 Sep 2015 16:54:15 +0000 (09:54 -0700)] 
Input: edt-ft5x06 - use generic properties API

Instead of only parsing device tree properties let's switch to using
generic properties API so that the driver can also work on other platforms.

Tested-by: Franklin S Cooper Jr <fcooper@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: edt-ft5x06 - remove support for platform data
Dmitry Torokhov [Sat, 12 Sep 2015 16:37:03 +0000 (09:37 -0700)] 
Input: edt-ft5x06 - remove support for platform data

We do not have any users of platform data in the tree and all newer
platforms are either DT or ACPI, so let's drop handling of platform data.

Tested-by: Franklin S Cooper Jr <fcooper@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: edt-ft5x06 - drop parsing of irq gpio
Dmitry Torokhov [Sat, 12 Sep 2015 16:17:47 +0000 (09:17 -0700)] 
Input: edt-ft5x06 - drop parsing of irq gpio

The driver does not use irq gpio as gpio, but rather relies on I2C core or
board code to set up client's structure IRQ line, so let's stop trying to
locate the resource and parse it.

Tested-by: Franklin S Cooper Jr <fcooper@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: edt-ft5x06 - switch to newer gpio framework
Franklin S Cooper Jr [Sat, 12 Sep 2015 00:30:34 +0000 (17:30 -0700)] 
Input: edt-ft5x06 - switch to newer gpio framework

The current/old gpio framework used doesn't properly listen to
ACTIVE_LOW and ACTIVE_HIGH flags. The newer gpio framework takes into
account these flags when setting gpio values.

Since the values being output were based on voltage and not logic they
change to reflect this difference. Also use gpiod_set_value_cansleep since
wake and reset pins can be provided by bus based io expanders.

Switch from msleep(5) to udelay_range(5000,6000) to avoid check patch
warning.

Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: ad714x - convert to using managed resources
Vaishali Thakkar [Sat, 12 Sep 2015 18:08:34 +0000 (11:08 -0700)] 
Input: ad714x - convert to using managed resources

Use managed resource functions devm_request_threaded_irq,
devm_inpute_allocate_device and devm_kzalloc to simplify error handling.
Also, remove use of input_unregister_device as input_register_device itself
handles it and works as resource managed function.

To be compatible with the change, various gotos are replaced with direct
returns, and unneeded labels are dropped. With these changes remove
ad714x_remove and corresponding calls of it as they are now redundant.

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: imx_keypad - remove obsolete comment
Fabio Estevam [Wed, 19 Feb 2014 21:38:13 +0000 (13:38 -0800)] 
Input: imx_keypad - remove obsolete comment

Since commit 81e8f2bc (Input: imx_keypad - add pm suspend and resume
support) the imx_keypad driver supports power management, so let's remove
the obsolete comment.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: touchscreen - add imx6ul_tsc driver support
Haibo Chen [Sat, 5 Sep 2015 18:31:21 +0000 (11:31 -0700)] 
Input: touchscreen - add imx6ul_tsc driver support

Freescale i.MX6UL contains a internal touchscreen controller,
this patch add a driver to support this controller.

Signed-off-by: Haibo Chen <haibo.chen@freescale.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: Add touchscreen support for Colibri VF50
Sanchayan Maity [Sat, 5 Sep 2015 17:32:09 +0000 (10:32 -0700)] 
Input: Add touchscreen support for Colibri VF50

The Colibri Vybrid VF50 module supports 4-wire touchscreens using
FETs and ADC inputs. This driver uses the IIO consumer interface
and relies on the vf610_adc driver based on the IIO framework.

Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: i8042 - lower log level for "no controller" message
Takashi Iwai [Sat, 5 Sep 2015 17:29:09 +0000 (10:29 -0700)] 
Input: i8042 - lower log level for "no controller" message

Nowadays the machines without i8042 controller is popular, and no need
to print "No controller found" message in the error log level, which
annoys at booting in quiet mode.  Let's lower it info level.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: evdev - do not report errors form flush()
Takashi Iwai [Fri, 4 Sep 2015 05:20:00 +0000 (22:20 -0700)] 
Input: evdev - do not report errors form flush()

We've got bug reports showing the old systemd-logind (at least
system-210) aborting unexpectedly, and this turned out to be because
of an invalid error code from close() call to evdev devices.  close()
is supposed to return only either EINTR or EBADFD, while the device
returned ENODEV.  logind was overreacting to it and decided to kill
itself when an unexpected error code was received.  What a tragedy.

The bad error code comes from flush fops, and actually evdev_flush()
returns ENODEV when device is disconnected or client's access to it is
revoked. But in these cases the fact that flush did not actually happen is
not an error, but rather normal behavior. For non-disconnected devices
result of flush is also not that interesting as there is no potential of
data loss and even if it fails application has no way of handling the
error. Because of that we are better off always returning success from
evdev_flush().

Also returning EINTR from flush()/close() is discouraged (as it is not
clear how application should handle this error), so let's stop taking
evdev->mutex interruptibly.

Bugzilla: http://bugzilla.suse.com/show_bug.cgi?id=939834
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: elants_i2c - extend the calibration timeout to 12 seconds
James Chen [Fri, 4 Sep 2015 05:12:38 +0000 (22:12 -0700)] 
Input: elants_i2c - extend the calibration timeout to 12 seconds

The 23 inch device found in Chrome project buddy requires 9.2~10.5 seconds
to complete calibration. Let's increase calibration timeout to 12 seconds
to give the device enough time.

Signed-off-by: James Chen <james.chen@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: sparcspkr - fix module autoload for OF platform drivers
Luis de Bethencourt [Thu, 3 Sep 2015 17:50:57 +0000 (10:50 -0700)] 
Input: sparcspkr - fix module autoload for OF platform drivers

These platform drivers have a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luis@debethencourt.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: regulator-haptic - fix module autoload for OF platform driver
Luis de Bethencourt [Thu, 3 Sep 2015 17:50:21 +0000 (10:50 -0700)] 
Input: regulator-haptic - fix module autoload for OF platform driver

This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luis@debethencourt.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: pwm-beeper - fix module autoload for OF platform driver
Luis de Bethencourt [Thu, 3 Sep 2015 17:49:46 +0000 (10:49 -0700)] 
Input: pwm-beeper - fix module autoload for OF platform driver

This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luis@debethencourt.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: ab8500-ponkey - Fix module autoload for OF platform driver
Luis de Bethencourt [Thu, 3 Sep 2015 17:49:17 +0000 (10:49 -0700)] 
Input: ab8500-ponkey - Fix module autoload for OF platform driver

This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luis@debethencourt.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: cyttsp - remove unnecessary MODULE_ALIAS()
Javier Martinez Canillas [Thu, 3 Sep 2015 17:47:25 +0000 (10:47 -0700)] 
Input: cyttsp - remove unnecessary MODULE_ALIAS()

The drivers have a I2C device ID table that is used to create the module
aliases and also "cyttsp" and "cyttsp4" are not supported I2C device IDs
so these module aliases are never used.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: elan_i2c - add ACPI ID "ELAN1000"
João Paulo Rechi Vita [Thu, 3 Sep 2015 17:04:49 +0000 (10:04 -0700)] 
Input: elan_i2c - add ACPI ID "ELAN1000"

This ACPI ID present in the DSDT of the ASUS E202SA laptop.

Signed-off-by: João Paulo Rechi Vita <jprvita@endlessm.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: elan_i2c - use iap_version to get firmware information
Duson Lin [Thu, 3 Sep 2015 16:46:45 +0000 (09:46 -0700)] 
Input: elan_i2c - use iap_version to get firmware information

When driver is in IAP mode ic_type query may return 0xff. However
iap_version will always be valid, so let's use it to determine parameters
of the firmware that the controller is supposed to accept.

Signed-off-by: Duson Lin <dusonlin@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: max8997_haptic - fix module alias
Javier Martinez Canillas [Sat, 29 Aug 2015 00:30:46 +0000 (17:30 -0700)] 
Input: max8997_haptic - fix module alias

The driver is a platform driver and not a I2C driver so its modalias
should be exported with MODULE_DEVICE_TABLE(platform,...) instead of
MODULE_DEVICE_TABLE(i2c,...).

Also, remove the unnecessary MODULE_ALIAS("platform:max8997-haptic")
now that the correct module alias is created.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: elan_i2c - fix typos for validpage_count
Benson Leung [Sat, 29 Aug 2015 00:30:16 +0000 (17:30 -0700)] 
Input: elan_i2c - fix typos for validpage_count

Search for "vaildpage_count" and replace with "validpage_count".

Signed-off-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: psmouse - add small delay for IBM trackpoint pass-through mode
Stefan Assmann [Wed, 26 Aug 2015 20:11:49 +0000 (13:11 -0700)] 
Input: psmouse - add small delay for IBM trackpoint pass-through mode

There are trackpoint devices that fail to respond to the PS2 command
PSMOUSE_CMD_GETID if immediately queried after the parent device is
deactivated. Add a small delay for the hardware to get in a sane state
before sending any PS2 commands.

One example of such a system is:
Lenovo ThinkPad X120e, model 30515QG
synaptics: Touchpad model: 1, fw: 8.0, id: 0x1e2b1, caps: 0xd001a3/0x940300/0x121c00, board id: 1811, fw id: 797391

Signed-off-by: Stefan Assmann <sassmann@kpanic.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: elan_i2c - enable ELAN0100 acpi panels
Michele Curti [Mon, 24 Aug 2015 17:49:29 +0000 (10:49 -0700)] 
Input: elan_i2c - enable ELAN0100 acpi panels

Enable ELAN0100 touchpad driver, found on a Asus X205TA laptop, to
gai 2,3 fingers tap and 2 fingers scroll.

Signed-off-by: Michele Curti <michele.curti@gmail.com>
Reviewed-by: Duson Lin <dusonlin@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: gpio-keys - report error when disabling unsupported key
Peng Fan [Mon, 24 Aug 2015 17:42:25 +0000 (10:42 -0700)] 
Input: gpio-keys - report error when disabling unsupported key

When trying to disable a key that is not supported by the device we should
report error, not do nothing and report success:

root@yocto:/sys/devices/soc0/gpio-keys# cat keys
114-116
root@yocto:/sys/devices/soc0/gpio-keys# echo 77 > keys
root@yocto:/sys/devices/soc0/gpio-keys#

We want 'echo 77 > keys' to report an error, but silence to give us an
illusion that all is 'ok'.

Signed-off-by: Peng Fan <van.freenix@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: sur40 - fix error return code
Julia Lawall [Mon, 24 Aug 2015 17:51:04 +0000 (10:51 -0700)] 
Input: sur40 - fix error return code

Propagate error code on failure, or upper layers will be confused by
returned 0 (success) code.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: sentelic - silence some underflow warnings
Dan Carpenter [Fri, 21 Aug 2015 16:29:50 +0000 (09:29 -0700)] 
Input: sentelic - silence some underflow warnings

I have a static checker that complains when we check for an upper bound
but don't have a corresponding check for a lower bound.  With this code,
the upper bound check seems not really required, so it is not a bug to
leave the lower bound check out as well.  But let's silence the warning
by making these variables unsigned.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: zhenhua - switch to using bitrev8()
Yalin Wang [Fri, 21 Aug 2015 00:41:42 +0000 (17:41 -0700)] 
Input: zhenhua - switch to using bitrev8()

Instead of custom zhenhua_bitreverse() let's use generic bitrev8().

Signed-off-by: Yalin Wang <yalin.wang2010@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: cros_ec_keyb - replace KEYBOARD_CROS_EC dependency
Javier Martinez Canillas [Wed, 19 Aug 2015 21:20:45 +0000 (14:20 -0700)] 
Input: cros_ec_keyb - replace KEYBOARD_CROS_EC dependency

The ChromeOS EC keyboard driver config depends on CROS_EC_PROTO but
MFD_CROS_EC selects CROS_EC_PROTO instead. Mixing select and depends
on is bad practice as it may lead to circular Kconfig dependencies.

Since the platform device that is matched with the keyboard driver
is registered by the ChromeOS EC mfd driver, KEYBOARD_CROS_EC really
should depend on MFD_CROS_EC. And because this config option selects
CROS_EC_PROTO, that dependency is met as well. So make the driver
to depend on MFD_CROS_EC instead of CROS_EC_PROTO.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: cap11xx - add LED support
Matt Ranostay [Mon, 17 Aug 2015 06:04:53 +0000 (23:04 -0700)] 
Input: cap11xx - add LED support

Several cap11xx variants have LEDs that be can be controlled; let's plug
the driver into the LED subsystem.

Signed-off-by: Matt Ranostay <mranostay@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: elants_i2c - fix for devm_gpiod_get API change
Stephen Rothwell [Mon, 10 Aug 2015 05:37:46 +0000 (22:37 -0700)] 
Input: elants_i2c - fix for devm_gpiod_get API change

Flags are now mandatory for devm_gpiod_get(). So let's use proper flag
to configure gpio for output instead of doing this by hand.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
[Dmitry: GPIOD_ASIS -> GPIOD_OUT_LOW]
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: elan_i2c - enable asynchronous probing
Dmitry Torokhov [Wed, 5 Aug 2015 19:01:30 +0000 (12:01 -0700)] 
Input: elan_i2c - enable asynchronous probing

It takes a bit of time to go through controller power up sequence and
initialization. To not stall the overall boot progress let's probe the
controller asynchronously, given that userspace is usually prepared for
hot-plugging of input devices and thus does not rely on particular
ordering.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: elants_i2c - enable asynchronous probing
Dmitry Torokhov [Wed, 15 Apr 2015 01:18:34 +0000 (18:18 -0700)] 
Input: elants_i2c - enable asynchronous probing

It takes a bit of time to go through controller power up sequence and
initialization. To not stall the overall boot progress let's probe the
controller asynchronously, given that userspace is usually prepared for
hot-plugging of input devices and thus does not rely on particular
ordering.

Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: elants_i2c - wire up regulator support
Dmitry Torokhov [Fri, 17 Apr 2015 01:14:55 +0000 (18:14 -0700)] 
Input: elants_i2c - wire up regulator support

Elan touchscreen controllers use two power supplies, vcc33 and vccio,
and we need to enable them before trying to access the device. On X86
firmware usually does this, but on ARM it is usually left to the kernel.

Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Reviewed-by: Benson Leung <bleung@chromium.org>
Reviewed-by: Scott Liu <scott.liu@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: do not emit unneeded EV_SYN when suspending
Dmitry Torokhov [Fri, 7 Aug 2015 02:15:30 +0000 (19:15 -0700)] 
Input: do not emit unneeded EV_SYN when suspending

Do not emit EV_SYN/SYN_REPORT on suspend if there were no keys that are
still pressed as we are suspending the device (and in all other cases when
input core is forcibly releasing keys via input_dev_release_keys() call).

Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: elants_i2c - disable idle mode before updating firmware
James Chen [Mon, 20 Jul 2015 18:16:36 +0000 (11:16 -0700)] 
Input: elants_i2c - disable idle mode before updating firmware

If the device is in idle mode and is in the middle of a scan it may not
have a chance to react to the reset and then IAP commands within required
time interval and firmware update may fail. Let's bring the device out of
idle mode before attempting to reset it so that the scan period is smaller
and thus it can react to the command quicker.

Signed-off-by: James Chen <james.chen@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoMAINTAINERS: Add maintainer for atmel_mxt_ts
Nick Dyer [Tue, 4 Aug 2015 23:22:54 +0000 (16:22 -0700)] 
MAINTAINERS: Add maintainer for atmel_mxt_ts

Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: atmel_mxt_ts - remove warning on zero T44 count
Nick Dyer [Tue, 4 Aug 2015 23:58:05 +0000 (16:58 -0700)] 
Input: atmel_mxt_ts - remove warning on zero T44 count

Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: atmel_mxt_ts - initialise input slots with INPUT_MT_DIRECT
Nick Dyer [Tue, 4 Aug 2015 23:57:40 +0000 (16:57 -0700)] 
Input: atmel_mxt_ts - initialise input slots with INPUT_MT_DIRECT

This indicates the device coordinates should be directly mapped to screen.
This is valid since scaling/flipping/rotation should be done by configuring
the MXT device.

It also flags to Android using INPUT_PROP_DIRECT that the device should be
treated as a touch screen by default, and removes the necessity for a
default IDC file.

Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: atmel_mxt_ts - disable interrupt for 50ms after reset
Nick Dyer [Tue, 4 Aug 2015 23:57:25 +0000 (16:57 -0700)] 
Input: atmel_mxt_ts - disable interrupt for 50ms after reset

The CHG/interrupt line is momentarily set (approximately 100 ms) as an
input after power-up or reset for diagnostic purposes. This may cause
spurious interrupts, so disable interrupt handler during this period.

Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: atmel_mxt_ts - improve device tree parsing
Nick Dyer [Tue, 4 Aug 2015 23:53:16 +0000 (16:53 -0700)] 
Input: atmel_mxt_ts - improve device tree parsing

Use function rather than loop, define np to reduce wrapping.

Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: atmel_mxt_ts - suspend/resume causes panic if input_dev fails to init
Pan Xinhui [Tue, 4 Aug 2015 23:53:04 +0000 (16:53 -0700)] 
Input: atmel_mxt_ts - suspend/resume causes panic if input_dev fails to init

input_dev may be NULL if mxt_initialize_input_device fails. But pm ops is
still available and suspend/resume assume
input_dev is not NULL. To fix this issue, we add a check if (!input_dev).

Signed-off-by: Pan Xinhui <xinhuix.pan@intel.com>
Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: atmel_mxt_ts - remove unused defines
Nick Dyer [Tue, 4 Aug 2015 23:49:34 +0000 (16:49 -0700)] 
Input: atmel_mxt_ts - remove unused defines

Many of these values are out of date and they aren't used in the driver
- all they do is increase the size of the kernel source.

Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Acked-by: Benson Leung <bleung@chromium.org>
Acked-by: Yufeng Shen <miletus@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: atmel_mxt_ts - use deep sleep mode when stopped
Nick Dyer [Tue, 4 Aug 2015 23:36:29 +0000 (16:36 -0700)] 
Input: atmel_mxt_ts - use deep sleep mode when stopped

The hardcoded 0x83 CTRL setting overrides other settings in that byte,
enabling extra reporting that may not be useful on a particular platform.

Implement improved suspend mechanism via deep sleep. By writing zero to
both the active and idle cycle times the maXTouch device can be put into a
deep sleep mode, using minimal power. It is necessary to issue a calibrate
command after the chip has spent any time in deep sleep, however a soft
reset is unnecessary.

Use the old method on Chromebook Pixel via platform data option.

This patch also deals with the situation where the power configuration is
zero on probe, which would mean that the device never wakes up to execute
commands.

After a config download, the T7 power configuration may have changed so it
is necessary to re-read it.

Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Acked-by: Benson Leung <bleung@chromium.org>
Acked-by: Yufeng Shen <miletus@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: Allow compile test of GPIO consumers if !GPIOLIB
Geert Uytterhoeven [Tue, 4 Aug 2015 18:43:40 +0000 (11:43 -0700)] 
Input: Allow compile test of GPIO consumers if !GPIOLIB

The GPIO subsystem provides dummy GPIO consumer functions if GPIOLIB is
not enabled. Hence drivers that depend on GPIOLIB, but use GPIO consumer
functionality only, can still be compiled if GPIOLIB is not enabled.

Relax the dependency on GPIOLIB if COMPILE_TEST is enabled, where
appropriate.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: zforce - make the interrupt GPIO optional
Dirk Behme [Mon, 3 Aug 2015 20:03:09 +0000 (13:03 -0700)] 
Input: zforce - make the interrupt GPIO optional

Add support for hardware which uses an I2C Serializer / Deserializer
(SerDes) to communicate with the zFroce touch driver. In this case the
SerDes will be configured as an interrupt controller and the zForce driver
will have no access to poll the GPIO line.

To support this, we add two dedicated new GPIOs in the device tree:
reset-gpios and irq-gpios, with the irq-gpios being optional.

To not break the existing device trees, the index based 'gpios' entries
are still supported, but marked as deprecated.

With this, if the interrupt GPIO is available, either via the old or new
device tree style, the while loop will read and handle the packets as long
as the GPIO indicates that the interrupt is asserted (existing, unchanged
driver behavior).

If the interrupt GPIO isn't available, i.e. not configured via the new
device tree style, we are falling back to one read per ISR invocation
(new behavior to support the SerDes).

Note that the gpiod functions help to handle the optional GPIO:
devm_gpiod_get_index_optional() will return NULL in case the interrupt
GPIO isn't available. And gpiod_get_value_cansleep() does cover this, too,
by returning 0 in this case.

Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Reviewed-by: Heiko Stuebner <heiko.stuebner@bq.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: cyapa - do not try to enable proximity reporting on older devices
Dudley Du [Thu, 30 Jul 2015 18:26:39 +0000 (11:26 -0700)] 
Input: cyapa - do not try to enable proximity reporting on older devices

Avoid the driver generate warning message when the cyapa driver working
with the old Gen5 trackpad device which does not support the proximity
function.  Those old Gen5 trackpad device all have the platform version
less than 2.

Signed-off-by: Dudley Du <dudl@cypress.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: cyapa - introduce device tree binding
Dudley Du [Thu, 30 Jul 2015 18:24:16 +0000 (11:24 -0700)] 
Input: cyapa - introduce device tree binding

Add device tree support for  Cypress trackpad devices.

Signed-off-by: Dudley Du <dudl@cypress.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: cyapa - add regulator vcc support
Dudley Du [Thu, 30 Jul 2015 18:19:18 +0000 (11:19 -0700)] 
Input: cyapa - add regulator vcc support

We need to power up the chip before we can initialize it.

On systems that delegate task of powering up regulators to firmware we
assume that we'll be simply given a dummy regulator.

Signed-off-by: Dudley Du <dudl@cypress.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: touchscreen - export OF module alias information
Javier Martinez Canillas [Thu, 30 Jul 2015 17:39:28 +0000 (10:39 -0700)] 
Input: touchscreen - export OF module alias information

The I2C core always reports the MODALIAS uevent as "i2c:<client name"
regardless if the driver was matched using the I2C id_table or the
of_match_table. So technically there's no need for a driver to export
the OF table since currently it's not used.

In fact, the I2C device ID table is mandatory for I2C drivers since
a i2c_device_id is passed to the driver's probe function even if the
I2C core used the OF table to match the driver.

And since the I2C core uses different tables, OF-only drivers needs to
have duplicated data that has to be kept in sync and also the dev node
compatible manufacturer prefix is stripped when reporting the MODALIAS.

To avoid the above, the I2C core behavior may be changed in the future
to not require an I2C device table for OF-only drivers and report the
OF module alias. So, it's better to also export the OF table to prevent
breaking module autoloading if that happens.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: export I2C module alias information in missing drivers
Javier Martinez Canillas [Thu, 30 Jul 2015 17:38:52 +0000 (10:38 -0700)] 
Input: export I2C module alias information in missing drivers

The I2C core always reports the MODALIAS uevent as "i2c:<client name"
regardless if the driver was matched using the I2C id_table or the
of_match_table. So the driver needs to export the I2C table and this
be built into the module or udev won't have the necessary information
to auto load the correct module when the device is added.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: tsc2005 - convert to gpiod
Sebastian Reichel [Tue, 28 Jul 2015 00:28:58 +0000 (17:28 -0700)] 
Input: tsc2005 - convert to gpiod

The GPIOD API can be used from boardcode, so that the DT check can be
removed. To avoid breaking existing boardcode, _optional() variant has been
chosen. For completely removing the DT check, the regulator has also been
made optional, so that it could be supplied from boardcode.

As a side-effect the patch fixes the after-probe reset GPIO state, so that
the device is not kept in reset state.

Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: tsc2005 - simplify drvdata acquisition
Sebastian Reichel [Tue, 28 Jul 2015 00:28:37 +0000 (17:28 -0700)] 
Input: tsc2005 - simplify drvdata acquisition

Using dev_*_drvdata() instead of spi_*_drvdata() reduces lines of code and
prepares the driver for possible tsc2004 support, which is i2c based.

Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: tsc2005 - convert to regmap
Sebastian Reichel [Tue, 28 Jul 2015 00:27:25 +0000 (17:27 -0700)] 
Input: tsc2005 - convert to regmap

Convert driver so that it uses regmap instead of directly using
spi_transfer for all register accesses.

Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: tsc2005 - fix Kconfig indentation
Sebastian Reichel [Tue, 28 Jul 2015 00:27:09 +0000 (17:27 -0700)] 
Input: tsc2005 - fix Kconfig indentation

Replace spaces with tab, so that the tsc2005 Kconfig entry matches the
other entries in drivers/input/touchscreen/Kconfig.

Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: tsc2005 - improve readability of register defines
Sebastian Reichel [Tue, 28 Jul 2015 00:26:38 +0000 (17:26 -0700)] 
Input: tsc2005 - improve readability of register defines

Improve defines for first control byte by removing 0x00 prefix (the defines
are for 8 bit values and not for 16 bit values) and expose register
structure by exposing the shift.

Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: arizona-haptic - convert to use managed input devices
Dmitry Torokhov [Mon, 6 Jul 2015 17:32:27 +0000 (10:32 -0700)] 
Input: arizona-haptic - convert to use managed input devices

Using managed input device (via devm_input_allocate_device) simplifies
error handling and driver removal paths and also silences CID# 712569.

Reviewed-by: Joshua Clayton <stillcompiling@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: cyapa - add ACPI HID CYAP0002 for Gen6 devices
Dudley Du [Tue, 21 Jul 2015 00:15:46 +0000 (17:15 -0700)] 
Input: cyapa - add ACPI HID CYAP0002 for Gen6 devices

Add CYTP0002 to the list of ACPI HIDs recognized by the driver.

Signed-off-by: Dudley Du <dudl@cypress.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: cyapa - fully support runtime suspend power management
Dudley Du [Tue, 21 Jul 2015 00:09:59 +0000 (17:09 -0700)] 
Input: cyapa - fully support runtime suspend power management

Fix the the runtime suspend power management not working issue when system
starts up and before user touches the trackpad device.
TEST=test on Chromebook.

Signed-off-by: Dudley Du <dudl@cypress.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: cyapa - add proximity support for gen5 and gen6 modules
Dudley Du [Mon, 20 Jul 2015 23:57:53 +0000 (16:57 -0700)] 
Input: cyapa - add proximity support for gen5 and gen6 modules

Gen5 and Gen6 trackpad devices are able to detect and report object
proximity data/events, add this function support in the cyapa driver
through the ABS_DISTANCE event.

Signed-off-by: Dudley Du <dudl@cypress.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: cyapa - add gen6 device module support
Dudley Du [Mon, 20 Jul 2015 23:53:30 +0000 (16:53 -0700)] 
Input: cyapa - add gen6 device module support

Based on the cyapa core, add support for basic functionality of the gen6
trackpad devices. The driver can automatically determine what protocol
(gen3, gen5, or gen6) should be used with the attached trackpad device.

Signed-off-by: Dudley Du <dudl@cypress.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: cyapa - rename 'gen5' to 'pip' for chared code
Dudley Du [Mon, 20 Jul 2015 23:49:06 +0000 (16:49 -0700)] 
Input: cyapa - rename 'gen5' to 'pip' for chared code

Change 'gen5' to 'pip' for all macros, variables and functions that are
shared between gen5 and gen6 modules to make naming more clear and
readable.

Also fix a few spelling errors.

Signed-off-by: Dudley Du <dudl@cypress.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: tc3589x-keypad - switch to using managed resources
Himangi Saraogi [Mon, 26 May 2014 05:33:13 +0000 (22:33 -0700)] 
Input: tc3589x-keypad - switch to using managed resources

Let's switch the driver to use managed resources, this will simplify
error handling and driver unbinding logic.

Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: tc3589x-keypad - change name of wakeup property
Dmitry Torokhov [Sat, 18 Jul 2015 00:08:02 +0000 (17:08 -0700)] 
Input: tc3589x-keypad - change name of wakeup property

Wakeup property of device is not Linux-specific, it describes intended
system behavior regardless of the OS being used. Therefore let's drop
"linux," prefix, and, while at it, use the same name as I2C bus does:
"wakeup-source".

We keep parsing old name to keep compatibility with old DTSes.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: samsung-keypad - change name of wakeup property
Dmitry Torokhov [Sat, 18 Jul 2015 00:04:10 +0000 (17:04 -0700)] 
Input: samsung-keypad - change name of wakeup property

Wakeup property of device is not Linux-specific, it describes intended
system behavior regardless of the OS being used. Therefore let's drop
"linux," prefix, and, while at it, use the same name as I2C bus does:
"wakeup-source".

We keep parsing old name to keep compatibility with old DTSes.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: gpio_keys[_polled] - change name of wakeup property
Dmitry Torokhov [Thu, 16 Jul 2015 19:10:05 +0000 (12:10 -0700)] 
Input: gpio_keys[_polled] - change name of wakeup property

Wakeup property of device is not Linux-specific, it describes intended
system behavior regardless of the OS being used. Therefore let's drop
"linux," prefix, and, while at it, use the same name as I2C bus does:
"wakeup-source".

We keep parsing old name to keep compatibility with old DTSes.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: pmic8xxx-keypad - change name of wakeup property
Dmitry Torokhov [Thu, 16 Jul 2015 19:15:24 +0000 (12:15 -0700)] 
Input: pmic8xxx-keypad - change name of wakeup property

Wakeup property of device is not Linux-specific, it describes intended
system behavior regardless of the OS being used. Therefore let's drop
"linux," prefix, and, while at it, use the same name as I2C bus does:
"wakeup-source".

We keep parsing old name to keep compatibility with old DTSes.

Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: ads7846 - change name of wakeup property to "wakeup-source"
Dmitry Torokhov [Thu, 16 Jul 2015 19:03:39 +0000 (12:03 -0700)] 
Input: ads7846 - change name of wakeup property to "wakeup-source"

Wakeup property of device is not Linux-specific, it describes intended
system behavior regardless of the OS being used. Therefore let's drop
"linux," prefix, and, while at it, use the same name as I2C bus does:
"wakeup-source".

We keep parsing old name to keep compatibility with old DTSes.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: matrix_keypad - change name of wakeup property to "wakeup-source"
Dmitry Torokhov [Thu, 16 Jul 2015 18:54:14 +0000 (11:54 -0700)] 
Input: matrix_keypad - change name of wakeup property to "wakeup-source"

Wakeup property of device is not Linux-specific, it describes intended
system behavior regardless of the OS being used. Therefore let's drop
"linux," prefix, and, while at it, use the same name as I2C bus does:
"wakeup-source".

We keep parsing old name to keep compatibility with old DTSes.

Cc: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: pmic8xxx-pwrkey - support shutdown
Stephen Boyd [Fri, 17 Jul 2015 21:59:18 +0000 (14:59 -0700)] 
Input: pmic8xxx-pwrkey - support shutdown

On pm8xxx PMICs, shutdown and restart are signaled to the PMIC via a pin
called PS_HOLD. When this pin goes low, the PMIC performs a configurable
power sequence. Add a .shutdown hook so that we can properly configure this
power sequence for shutdown or restart depending on the system state.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoMerge tag 'v4.2-rc3' into next
Dmitry Torokhov [Mon, 20 Jul 2015 17:08:17 +0000 (10:08 -0700)] 
Merge tag 'v4.2-rc3' into next

Sync up with Linux 4.2-rc3 to bring in infrastructure (OF) pieces.

9 years agoInput: elan_i2c - enable ELAN0600 acpi panels
Benjamin Tissoires [Mon, 20 Jul 2015 16:56:18 +0000 (09:56 -0700)] 
Input: elan_i2c - enable ELAN0600 acpi panels

ELAN0600 seems to work just fine in mouse emulation mode through i2c-hid,
but to have full raw touch support we need to register it in elan_i2c.ko

Reported-and-tested-by: Alessio Treglia <alessio@debian.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Jiri Kosina <jkosina@suse.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: zforce - don't invert the interrupt GPIO
Dirk Behme [Mon, 20 Jul 2015 16:50:37 +0000 (09:50 -0700)] 
Input: zforce - don't invert the interrupt GPIO

Commit 2d53809594af ("Input: zforce_ts - convert to use the gpiod
interface") converted this driver to use the gpiod functions. These
functions take the active low property into account, so we don't have
to invert the result of gpiod_get_value_cansleep(). This has been
missed in that commit. Fix it.

Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoLinux 4.2-rc3
Linus Torvalds [Sun, 19 Jul 2015 21:45:02 +0000 (14:45 -0700)] 
Linux 4.2-rc3

9 years agoMerge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds [Sun, 19 Jul 2015 21:18:00 +0000 (14:18 -0700)] 
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Two fairly simple fixes: one is a change that causes us to have a very
  low queue depth leading to performance issues and the other is a null
  deref occasionally in tapes thanks to use after put"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: fix host max depth checking for the 'queue_depth' sysfs interface
  st: null pointer dereference panic caused by use after kref_put by st_open

9 years agoMerge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Linus Torvalds [Sun, 19 Jul 2015 21:12:22 +0000 (14:12 -0700)] 
Merge branch 'upstream' of git://git.linux-mips.org/ralf/upstream-linus

Pull MIPS fixes from Ralf Baechle:
 "Another round of MIPS fixes for 4.2.

  Things are looking quite decent at this stage but the recent work on
  the FPU support took its toll:

   - fix an incorrect overly restrictive ifdef

   - select O32 64-bit FP support for O32 binary compatibility

   - remove workarounds for Sibyte SB1250 Pass1 parts.  There are rare
     fixing the workarounds is not worth the effort.

   - patch up an outdated and now incorrect comment"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: fpu.h: Allow 64-bit FPU on a 64-bit MIPS R6 CPU
  MIPS: SB1: Remove support for Pass 1 parts.
  MIPS: Require O32 FP64 support for MIPS64 with O32 compat
  MIPS: asm-offset.c: Patch up various comments refering to the old filename.

9 years agoMerge branch 'parisc-4.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller...
Linus Torvalds [Sun, 19 Jul 2015 20:46:24 +0000 (13:46 -0700)] 
Merge branch 'parisc-4.2-2' of git://git./linux/kernel/git/deller/parisc-linux

Pull parisc fix from Helge Deller:
 "A memory leak fix from Christophe Jaillet which was introduced with
  kernel 4.0 and which leads to kernel crashes on parisc after 1-3 days"

* 'parisc-4.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: mm: Fix a memory leak related to pmd not attached to the pgd

9 years agoMerge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Linus Torvalds [Sun, 19 Jul 2015 20:37:44 +0000 (13:37 -0700)] 
Merge tag 'armsoc-fixes' of git://git./linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "By far most of the fixes here are updates to DTS files to deal with
  some mostly minor bugs.

  There's also a fix to deal with non-PM kernel configs on i.MX, a
  regression fix for ethernet on PXA platforms and a dependency fix for
  OMAP"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: keystone: dts: rename pcie nodes to help override status
  ARM: keystone: dts: fix dt bindings for PCIe
  ARM: pxa: fix dm9000 platform data regression
  ARM: dts: Correct audio input route & set mic bias for am335x-pepper
  ARM: OMAP2+: Add HAVE_ARM_SCU for AM43XX
  MAINTAINERS: digicolor: add dts files
  ARM: ux500: fix MMC/SD card regression
  ARM: ux500: define serial port aliases
  ARM: dts: OMAP5: Add #iommu-cells property to IOMMUs
  ARM: dts: OMAP4: Add #iommu-cells property to IOMMUs
  ARM: dts: Fix frequency scaling on Gumstix Pepper
  ARM: dts: configure regulators for Gumstix Pepper
  ARM: dts: omap3: overo: Update LCD panel names
  ARM: dts: cros-ec-keyboard: Add support for some Japanese keys
  ARM: imx6: gpc: always enable PU domain if CONFIG_PM is not set
  ARM: dts: imx53-qsb: fix TVE entry
  ARM: dts: mx23: fix iio-hwmon support
  ARM: dts: imx27: Adjust the GPT compatible string
  ARM: socfpga: dts: Fix entries order
  ARM: socfpga: dts: Fix adxl34x formating and compatible string

9 years agoMIPS: fpu.h: Allow 64-bit FPU on a 64-bit MIPS R6 CPU
Markos Chandras [Thu, 16 Jul 2015 14:30:04 +0000 (15:30 +0100)] 
MIPS: fpu.h: Allow 64-bit FPU on a 64-bit MIPS R6 CPU

Commit 6134d94923d0 ("MIPS: asm: fpu: Allow 64-bit FPU on MIPS32 R6")
added support for 64-bit FPU on a 32-bit MIPS R6 processor but it missed
the 64-bit CPU case leading to FPU failures when requesting FR=1 mode
(which is always the case for MIPS R6 userland) when running a 32-bit
kernel on a 64-bit CPU. We also fix the MIPS R2 case.

Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Fixes: 6134d94923d0 ("MIPS: asm: fpu: Allow 64-bit FPU on MIPS32 R6")
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Cc: <stable@vger.kernel.org> # 4.0+
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10734/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
9 years agoparisc: mm: Fix a memory leak related to pmd not attached to the pgd
Christophe Jaillet [Mon, 13 Jul 2015 09:32:43 +0000 (11:32 +0200)] 
parisc: mm: Fix a memory leak related to pmd not attached to the pgd

Commit 0e0da48dee8d ("parisc: mm: don't count preallocated pmds")
introduced a memory leak.

After this commit, the 'return' statement in pmd_free is executed in all
cases. Even for pmd that are not attached to the pgd.  So 'free_pages'
can never be called anymore, leading to a memory leak.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Mikulas Patocka <mpatocka@redhat.com>
Acked-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # v4.0+
Signed-off-by: Helge Deller <deller@gmx.de>
9 years agoMerge tag 'pxa-fixes-v4.2-rc2' of https://github.com/rjarzmik/linux into fixesD
Olof Johansson [Sun, 19 Jul 2015 04:06:10 +0000 (21:06 -0700)] 
Merge tag 'pxa-fixes-v4.2-rc2' of https://github.com/rjarzmik/linux into fixesD

Merge "pxa fixes for v4.2" from Robert Jarzmik:

ARM: pxa: fixes for v4.2-rc2

This single fix reenables ethernet cards for several pxa boards,
broken by regulator addition to dm9000 driver.

* tag 'pxa-fixes-v4.2-rc2' of https://github.com/rjarzmik/linux:
  ARM: pxa: fix dm9000 platform data regression

9 years agoMerge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Linus Torvalds [Sat, 18 Jul 2015 18:03:48 +0000 (11:03 -0700)] 
Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm

Pull ARM fixes from Russell King:
 "A small set of ARM fixes for -rc3, most of them not far off
  one-liners, with the exception of fixing the V7 cache invalidation for
  incoming SMP processors which was causing problems for SoCFPGA
  devices"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: fix __virt_to_idmap build error on !MMU
  ARM: invalidate L1 before enabling coherency
  ARM: 8404/1: dma-mapping: fix off-by-one error in bitmap size check
  ARM: 8402/1: perf: Don't use of_node after putting it
  ARM: 8400/1: use virt_to_idmap to get phys_reset address

9 years agoMerge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 18 Jul 2015 17:49:57 +0000 (10:49 -0700)] 
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Ingo Molnar:
 "Two families of fixes:

   - Fix an FPU context related boot crash on newer x86 hardware with
     larger context sizes than what most people test.  To fix this
     without ugly kludges or extensive reverts we had to touch core task
     allocator, to allow x86 to determine the task size dynamically, at
     boot time.

     I've tested it on a number of x86 platforms, and I cross-built it
     to a handful of architectures:

                                        (warns)               (warns)
       testing     x86-64:  -git:  pass (    0),  -tip:  pass (    0)
       testing     x86-32:  -git:  pass (    0),  -tip:  pass (    0)
       testing        arm:  -git:  pass ( 1359),  -tip:  pass ( 1359)
       testing       cris:  -git:  pass ( 1031),  -tip:  pass ( 1031)
       testing       m32r:  -git:  pass ( 1135),  -tip:  pass ( 1135)
       testing       m68k:  -git:  pass ( 1471),  -tip:  pass ( 1471)
       testing       mips:  -git:  pass ( 1162),  -tip:  pass ( 1162)
       testing    mn10300:  -git:  pass ( 1058),  -tip:  pass ( 1058)
       testing     parisc:  -git:  pass ( 1846),  -tip:  pass ( 1846)
       testing      sparc:  -git:  pass ( 1185),  -tip:  pass ( 1185)

     ... so I hope the cross-arch impact 'none', as intended.

     (by Dave Hansen)

   - Fix various NMI handling related bugs unearthed by the big asm code
     rewrite and generally make the NMI code more robust and more
     maintainable while at it.  These changes are a bit late in the
     cycle, I hope they are still acceptable.

     (by Andy Lutomirski)"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/fpu, sched: Introduce CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT and use it on x86
  x86/fpu, sched: Dynamically allocate 'struct fpu'
  x86/entry/64, x86/nmi/64: Add CONFIG_DEBUG_ENTRY NMI testing code
  x86/nmi/64: Make the "NMI executing" variable more consistent
  x86/nmi/64: Minor asm simplification
  x86/nmi/64: Use DF to avoid userspace RSP confusing nested NMI detection
  x86/nmi/64: Reorder nested NMI checks
  x86/nmi/64: Improve nested NMI comments
  x86/nmi/64: Switch stacks on userspace NMI entry
  x86/nmi/64: Remove asm code that saves CR2
  x86/nmi: Enable nested do_nmi() handling for 64-bit kernels

9 years agoMerge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 18 Jul 2015 17:49:11 +0000 (10:49 -0700)] 
Merge branch 'timers-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull timer fix from Ingo Molnar:
 "Fix for a misplaced export that can cause build failures in certain
  (rare) Kconfig situations"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  tick: Move the export of tick_broadcast_oneshot_control to the proper place

9 years agoMerge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 18 Jul 2015 17:47:44 +0000 (10:47 -0700)] 
Merge branch 'sched-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull scheduler fix from Ingo Molnar:
 "A oneliner rq throttling fix"

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/fair: Test list head instead of list entry in throttle_cfs_rq()

9 years agoMerge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 18 Jul 2015 17:44:21 +0000 (10:44 -0700)] 
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull perf fixes from Ingo Molnar:
 "Mostly tooling fixes, plus a static key fix fixing /sys/devices/cpu/rdpmc"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf tools: Really allow to specify custom CC, AR or LD
  perf auxtrace: Fix misplaced check for HAVE_SYNC_COMPARE_AND_SWAP_SUPPORT
  perf hists browser: Take the --comm, --dsos, etc filters into account
  perf symbols: Store if there is a filter in place
  x86, perf: Fix static_key bug in load_mm_cr4()
  tools: Copy lib/hweight.c from the kernel sources
  perf tools: Fix the detached tarball wrt rbtree copy
  perf thread_map: Fix the sizeof() calculation for map entries
  tools lib: Improve clean target
  perf stat: Fix shadow declaration of close
  perf tools: Fix lockup using 32-bit compat vdso

9 years agoMerge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 18 Jul 2015 17:27:12 +0000 (10:27 -0700)] 
Merge branch 'irq-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull irq fixes from Ingo Molnar:
 "Misc irq fixes:

   - two driver fixes
   - a Xen regression fix
   - a nested irq thread crash fix"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/gicv3-its: Fix mapping of LPIs to collections
  genirq: Prevent resend to interrupts marked IRQ_NESTED_THREAD
  genirq: Revert sparse irq locking around __cpu_up() and move it to x86 for now
  gpio/davinci: Fix race in installing chained irq handler

9 years agoMerge branch 'akpm' (patches from Andrew)
Linus Torvalds [Sat, 18 Jul 2015 17:01:04 +0000 (10:01 -0700)] 
Merge branch 'akpm' (patches from Andrew)

Merge fixes from Andrew Morton:
 "25 fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (25 commits)
  lib/decompress: set the compressor name to NULL on error
  mm/cma_debug: correct size input to bitmap function
  mm/cma_debug: fix debugging alloc/free interface
  mm/page_owner: set correct gfp_mask on page_owner
  mm/page_owner: fix possible access violation
  fsnotify: fix oops in fsnotify_clear_marks_by_group_flags()
  /proc/$PID/cmdline: fixup empty ARGV case
  dma-debug: skip debug_dma_assert_idle() when disabled
  hexdump: fix for non-aligned buffers
  checkpatch: fix long line messages about patch context
  mm: clean up per architecture MM hook header files
  MAINTAINERS: uclinux-h8-devel is moderated for non-subscribers
  mailmap: update Sudeep Holla's email id
  Update Viresh Kumar's email address
  mm, meminit: suppress unused memory variable warning
  configfs: fix kernel infoleak through user-controlled format string
  include, lib: add __printf attributes to several function prototypes
  s390/hugetlb: add hugepages_supported define
  mm: hugetlb: allow hugepages_supported to be architecture specific
  revert "s390/mm: make hugepages_supported a boot time decision"
  ...

9 years agoMerge branch 'for-linus-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mason...
Linus Torvalds [Sat, 18 Jul 2015 04:46:57 +0000 (21:46 -0700)] 
Merge branch 'for-linus-4.2' of git://git./linux/kernel/git/mason/linux-btrfs

Pull btrfs fixes from Chris Mason:
 "These are all from Filipe, and cover a few problems we've had reported
  on the list recently (along with ones he found on his own)"

* 'for-linus-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: fix file corruption after cloning inline extents
  Btrfs: fix order by which delayed references are run
  Btrfs: fix list transaction->pending_ordered corruption
  Btrfs: fix memory leak in the extent_same ioctl
  Btrfs: fix shrinking truncate when the no_holes feature is enabled

9 years agoMerge tag 'rtc-v4.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni...
Linus Torvalds [Sat, 18 Jul 2015 04:24:31 +0000 (21:24 -0700)] 
Merge tag 'rtc-v4.2-2' of git://git./linux/kernel/git/abelloni/linux

Pull rtc fixes from Alexandre Belloni:
 "A few fixes for the RTC susbsystem for 4.2.

  The mt6397 driver was introduce in 4.2 so it is worth fixing before
  the final release.  I though the compilation warning for armada38x was
  fixed by akpm in commit f98b733e93e0 ("rtc-armada38x.c: remove unused
  local `flags'") but he actually missed some occurrences of the
  variables.  Since I received 4 patches for that, I think we can
  include it now.

  Summary:
   - fix mt6397 wakealarm creation
   - remove a compilation warning for armada38x that was forgotten"

* tag 'rtc-v4.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
  rtc: armada38x: Remove unused variable from armada38x_rtc_set_time()
  rtc: mt6397: enable wakeup before registering rtc device

9 years agoMerge tag 'dm-4.2-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device...
Linus Torvalds [Sat, 18 Jul 2015 03:53:57 +0000 (20:53 -0700)] 
Merge tag 'dm-4.2-fixes-2' of git://git./linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mike Snitzer:

 - revert a request-based DM core change that caused IO latency to
   increase and adversely impact both throughput and system load

 - fix for a use after free bug in DM core's device cleanup

 - a couple DM btree removal fixes (used by dm-thinp)

 - a DM thinp fix for order-5 allocation failure

 - a DM thinp fix to not degrade to read-only metadata mode when in
   out-of-data-space mode for longer than the 'no_space_timeout'

 - fix a long-standing oversight in both dm-thinp and dm-cache by now
   exporting 'needs_check' in status if it was set in metadata

 - fix an embarrassing dm-cache busy-loop that caused worker threads to
   eat cpu even if no IO was actively being issued to the cache device

* tag 'dm-4.2-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm cache: avoid calls to prealloc_free_structs() if possible
  dm cache: avoid preallocation if no work in writeback_some_dirty_blocks()
  dm cache: do not wake_worker() in free_migration()
  dm cache: display 'needs_check' in status if it is set
  dm thin: display 'needs_check' in status if it is set
  dm thin: stay in out-of-data-space mode once no_space_timeout expires
  dm: fix use after free crash due to incorrect cleanup sequence
  Revert "dm: only run the queue on completion if congested or no requests pending"
  dm btree: silence lockdep lock inversion in dm_btree_del()
  dm thin: allocate the cell_sort_array dynamically
  dm btree remove: fix bug in redistribute3

9 years agox86/fpu, sched: Introduce CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT and use it on x86
Ingo Molnar [Fri, 17 Jul 2015 10:28:12 +0000 (12:28 +0200)] 
x86/fpu, sched: Introduce CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT and use it on x86

Don't burden architectures without dynamic task_struct sizing
with the overhead of dynamic sizing.

Also optimize the x86 code a bit by caching task_struct_size.

Acked-and-Tested-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Dave Hansen <dave@sr71.net>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1437128892-9831-3-git-send-email-mingo@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
9 years agox86/fpu, sched: Dynamically allocate 'struct fpu'
Dave Hansen [Fri, 17 Jul 2015 10:28:11 +0000 (12:28 +0200)] 
x86/fpu, sched: Dynamically allocate 'struct fpu'

The FPU rewrite removed the dynamic allocations of 'struct fpu'.
But, this potentially wastes massive amounts of memory (2k per
task on systems that do not have AVX-512 for instance).

Instead of having a separate slab, this patch just appends the
space that we need to the 'task_struct' which we dynamically
allocate already.  This saves from doing an extra slab
allocation at fork().

The only real downside here is that we have to stick everything
and the end of the task_struct.  But, I think the
BUILD_BUG_ON()s I stuck in there should keep that from being too
fragile.

Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Dave Hansen <dave@sr71.net>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1437128892-9831-2-git-send-email-mingo@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
9 years agoInput: drop owner assignment from i2c_driver
Krzysztof Kozlowski [Fri, 17 Jul 2015 23:44:05 +0000 (16:44 -0700)] 
Input: drop owner assignment from i2c_driver

i2c_driver does not need to set an owner because i2c_register_driver()
will set it.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agolib/decompress: set the compressor name to NULL on error
Aneesh Kumar K.V [Fri, 17 Jul 2015 23:24:26 +0000 (16:24 -0700)] 
lib/decompress: set the compressor name to NULL on error

Without this we end up using the previous name of the compressor in the
loop in unpack_rootfs.  For example we get errors like "compression
method gzip not configured" even when we have CONFIG_DECOMPRESS_GZIP
enabled.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agomm/cma_debug: correct size input to bitmap function
Joonsoo Kim [Fri, 17 Jul 2015 23:24:23 +0000 (16:24 -0700)] 
mm/cma_debug: correct size input to bitmap function

In CMA, 1 bit in bitmap means 1 << order_per_bits pages so size of
bitmap is cma->count >> order_per_bits rather than just cma->count.
This patch fixes it.

Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Cc: Sasha Levin <sasha.levin@oracle.com>
Cc: Stefan Strogin <stefan.strogin@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agomm/cma_debug: fix debugging alloc/free interface
Joonsoo Kim [Fri, 17 Jul 2015 23:24:20 +0000 (16:24 -0700)] 
mm/cma_debug: fix debugging alloc/free interface

CMA has alloc/free interface for debugging.  It is intended that
alloc/free occurs in specific CMA region, but, currently, alloc/free
interface is on root dir due to the bug so we can't select CMA region
where alloc/free happens.

This patch fixes this problem by making alloc/free interface per CMA
region.

Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Cc: Sasha Levin <sasha.levin@oracle.com>
Cc: Stefan Strogin <stefan.strogin@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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