sfrench/cifs-2.6.git
5 years agoMerge branch 'next' into for-linus
Dmitry Torokhov [Thu, 7 Aug 2014 06:36:12 +0000 (23:36 -0700)]
Merge branch 'next' into for-linus

Prepare first round of input updates for 3.17.

5 years agoMerge branch 'wacom' into next
Dmitry Torokhov [Thu, 7 Aug 2014 06:31:48 +0000 (23:31 -0700)]
Merge branch 'wacom' into next

Merge large update to Wacom driver, converting it from USB to a HID
driver and unifying wired and bluetooth support, from Benjamin
Tissoires.

5 years agoInput: wacom - only register once the MODULE_* macros
Benjamin Tissoires [Wed, 6 Aug 2014 21:07:49 +0000 (14:07 -0700)]
Input: wacom - only register once the MODULE_* macros

Putting the various MODULE_* makes them appear several times in modinfo
because wacom.h is used both in wacom_sys.c and wacom_wac.h.
Having the macros near the module declaration makes them appear only once.

Add also MODULE_VERSION(DRIVER_VERSION) to export the current version
number.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
5 years agoInput: HID - remove hid-wacom Bluetooth driver
Benjamin Tissoires [Wed, 6 Aug 2014 21:06:26 +0000 (14:06 -0700)]
Input: HID - remove hid-wacom Bluetooth driver

Bluetooth Wacom tablets are now handled by the regular wacom.ko driver.
Remove the now useless hid-wacom driver.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Tested-by: Przemo Firszt <przemo@firszt.eu>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
5 years agoInput: wacom - add copyright note and bump version to 2.0
Benjamin Tissoires [Wed, 6 Aug 2014 21:04:23 +0000 (14:04 -0700)]
Input: wacom - add copyright note and bump version to 2.0

Reviewed-by: Ping Cheng <pingc@wacom.com>
Tested-by: Przemo Firszt <przemo@firszt.eu>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
5 years agoInput: wacom - remove passing id for wacom_set_report
Przemo Firszt [Wed, 6 Aug 2014 21:00:38 +0000 (14:00 -0700)]
Input: wacom - remove passing id for wacom_set_report

Every call of wacom_set_report was passing "id" as a separate parameter
and buffer also passed the same information. We can use first u8 of the
buffer instead of "id"

Signed-off-by: Przemo Firszt <przemo@firszt.eu>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Tested-by: Przemo Firszt <przemo@firszt.eu>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
5 years agoInput: wacom - check for bluetooth protocol while setting OLEDs
Benjamin Tissoires [Wed, 6 Aug 2014 20:58:25 +0000 (13:58 -0700)]
Input: wacom - check for bluetooth protocol while setting OLEDs

Bluetooth Intuos 4 use 1-bit definition while the USB ones use a 4-bits
definition. This changes the size of the raw image we receive, and thus
the kernel will only accept 1-bit images for Bluetooth and 4-bits for
USB.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Przemo Firszt <przemo@firszt.eu>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Tested-by: Przemo Firszt <przemo@firszt.eu>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
5 years agoInput: wacom - handle Intuos 4 BT in wacom.ko
Benjamin Tissoires [Wed, 6 Aug 2014 20:55:56 +0000 (13:55 -0700)]
Input: wacom - handle Intuos 4 BT in wacom.ko

A good point of this change is that now, the Intuos4 bluetooth can handle
the different tools (artpen, airbrush, mice), and we get a common interface
between USB and BT for accessing the LEDs/OLEDs.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Tested-by: Przemo Firszt <przemo@firszt.eu>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
5 years agoInput: wacom - handle Graphire BT tablets in wacom.ko
Benjamin Tissoires [Wed, 6 Aug 2014 20:52:56 +0000 (13:52 -0700)]
Input: wacom - handle Graphire BT tablets in wacom.ko

First, merge the Graphire BT tablet.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Tested-by: Przemo Firszt <przemo@firszt.eu>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
5 years agoInput: wacom - prepare the driver to include BT devices
Benjamin Tissoires [Wed, 6 Aug 2014 20:48:01 +0000 (13:48 -0700)]
Input: wacom - prepare the driver to include BT devices

Now that wacom is a hid driver, there is no point in having a separate
driver for bluetooth devices. This patch prepares the common paths of
Bluetooth devices in the common wacom driver. It also adds the sysfs file
"speed" used by Bluetooth devices.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Tested-by: Przemo Firszt <przemo@firszt.eu>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
5 years agoInput: hyperv-keyboard - register as a wakeup source
Dexuan Cui [Wed, 6 Aug 2014 20:33:54 +0000 (13:33 -0700)]
Input: hyperv-keyboard - register as a wakeup source

With this patch, we can press a key to wake up the VM after the VM executes
"echo freeze > /sys/power/state".

Signed-off-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: imx_keypad - remove ifdef round PM methods
Fabio Estevam [Thu, 31 Jul 2014 18:57:08 +0000 (11:57 -0700)]
Input: imx_keypad - remove ifdef round PM methods

We can annotate the suspend/resume functions with '__maybe_unused' and get
rid of the ifdef, which makes the code smaller and simpler.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: jornada720_ts - get rid of space indentation and use tab
Pramod Gurav [Thu, 31 Jul 2014 05:14:46 +0000 (22:14 -0700)]
Input: jornada720_ts - get rid of space indentation and use tab

Signed-off-by: Pramod Gurav <pramod.gurav@smartplayin.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: jornada720_ts - switch to using managed resources
Pramod Gurav [Thu, 31 Jul 2014 05:13:58 +0000 (22:13 -0700)]
Input: jornada720_ts - switch to using managed resources

This switches the driver to using managed resources to simplify error
handling and to do away with remove function.

Signed-off-by: Pramod Gurav <pramod.gurav@smartplayin.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: alps - Rushmore and v7 resolution support
Hans de Goede [Tue, 29 Jul 2014 18:22:07 +0000 (11:22 -0700)]
Input: alps - Rushmore and v7 resolution support

Add support for querying the physical size from the touchpad for Rushmore
and v7 touchpads, and use that to tell userspace the device resolution.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: mcs5000_ts - remove ifdef around power management methods
Fabio Estevam [Wed, 30 Jul 2014 18:34:49 +0000 (11:34 -0700)]
Input: mcs5000_ts - remove ifdef around power management methods

We can annonate the suspend/resume functions with '__maybe_unused' and get
rid of the ifdef, which makes the code smaller and simpler.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: mcs5000_ts - protect PM functions with CONFIG_PM_SLEEP
Fabio Estevam [Wed, 30 Jul 2014 18:34:31 +0000 (11:34 -0700)]
Input: mcs5000_ts - protect PM functions with CONFIG_PM_SLEEP

When a kernel has CONFIG_PM=y and CONFIG_PM_SLEEP=n the following warnings are
seen:
drivers/input/touchscreen/mcs5000_ts.c:252:12: warning: 'mcs5000_ts_suspend' defined but not used [-Wunused-function]
 static int mcs5000_ts_suspend(struct device *dev)
            ^
drivers/input/touchscreen/mcs5000_ts.c:262:12: warning: 'mcs5000_ts_resume' defined but not used [-Wunused-function]
 static int mcs5000_ts_resume(struct device *dev)

Protect the suspend/resume functions with CONFIG_PM_SLEEP in order to fix these
build warnings.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: ads7846 - release resources on failure for clean exit
Pramod Gurav [Thu, 31 Jul 2014 05:48:24 +0000 (22:48 -0700)]
Input: ads7846 - release resources on failure for clean exit

Input device must be released(input_free_device) when ads7846_probe_dt
fails. This fixes the same by releasing resources on failure.

Signed-off-by: Pramod Gurav <pramod.gurav@smartplayin.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: wacom - add support for 0x12C ISDv4 sensor
Jason Gerecke [Mon, 28 Jul 2014 17:53:16 +0000 (10:53 -0700)]
Input: wacom - add support for 0x12C ISDv4 sensor

Signed-off-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: atmel_mxt_ts - use deep sleep mode when stopped
Nick Dyer [Mon, 28 Jul 2014 17:14:34 +0000 (10:14 -0700)]
Input: atmel_mxt_ts - use deep sleep mode when stopped

By writing zero to both the active and idle cycle times the maXTouch device
is put into a deep sleep mode when it consumes minimal power. It is
unnecessary to change the configuration of any other objects (for example
to disable T9 touchscreen).

It is counterproductive to reset the chip on resume, it will result in a
long delay. However it is necessary to issue a calibrate command after the
chip has spent any time in deep sleep.

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.

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>
6 years agoARM: dts: am437x-gp-evm: Update binding for touchscreen size
Roger Quadros [Mon, 28 Jul 2014 17:11:37 +0000 (10:11 -0700)]
ARM: dts: am437x-gp-evm: Update binding for touchscreen size

Update the bindings for touchscreen size.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoARM: dts: am43x-epos-evm: Update binding for touchscreen size
Roger Quadros [Mon, 28 Jul 2014 17:10:58 +0000 (10:10 -0700)]
ARM: dts: am43x-epos-evm: Update binding for touchscreen size

Update the bindings for touchscreen size.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: pixcir_i2c_ts - add device tree support
Roger Quadros [Mon, 28 Jul 2014 17:05:39 +0000 (10:05 -0700)]
Input: pixcir_i2c_ts - add device tree support

Provide device tree support and binding information.  Also provide support
for a new chip "pixcir_tangoc".

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: pixcir_i2c_ts - support up to 5 fingers and hardware tracking IDs
Roger Quadros [Mon, 28 Jul 2014 17:01:07 +0000 (10:01 -0700)]
Input: pixcir_i2c_ts - support up to 5 fingers and hardware tracking IDs

Some variants of the Pixcir touch controller support up to 5 simultaneous
fingers and hardware tracking IDs. Prepare the driver for that.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: pixcir_i2c_ts - use Type-B Multi-Touch protocol
Roger Quadros [Mon, 28 Jul 2014 16:58:54 +0000 (09:58 -0700)]
Input: pixcir_i2c_ts - use Type-B Multi-Touch protocol

Switch to using the Type-B Multi-Touch protocol.

Reviewed-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: alps - add support for v7 devices
Yunkang Tang [Sat, 26 Jul 2014 20:51:41 +0000 (13:51 -0700)]
Input: alps - add support for v7 devices

Such as found on the new Toshiba Portégé Z30-A and Z40-A.

Signed-off-by: Yunkang Tang <yunkang.tang@cn.alps.com>
[hdegoede@redhat.com: Remove softbutton handling, this is done in userspace]
[hdegoede@redhat.com: Report INPUT_PROP_BUTTONPAD]
[hdegoede@redhat.com: Do not report fake PRESSURE, reporting BTN_TOUCH is
 enough]
[hdegoede@redhat.com: Various cleanups / refactoring]
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: alps - cache firmware version
Hans de Goede [Sat, 26 Jul 2014 05:49:14 +0000 (22:49 -0700)]
Input: alps - cache firmware version

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: alps - change decode function prototype to return an int
Hans de Goede [Sat, 26 Jul 2014 05:48:44 +0000 (22:48 -0700)]
Input: alps - change decode function prototype to return an int

So that decode functions can return a failure when appropriate.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: alps - report 2 touches when we've > 2 fingers
Hans de Goede [Sat, 26 Jul 2014 05:48:02 +0000 (22:48 -0700)]
Input: alps - report 2 touches when we've > 2 fingers

If we detect more then 2 fingers report 2 touches, rather then only
reporting the upper left corner of the bounding box.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: alps - add an alps_report_semi_mt_data function
Hans de Goede [Sat, 26 Jul 2014 05:47:25 +0000 (22:47 -0700)]
Input: alps - add an alps_report_semi_mt_data function

Move all the semi-mt specific handling shared between the v3 and v4
handling code to a common helper function.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: alps - use single touch data when v3 mt data contains only one finger
Hans de Goede [Sat, 26 Jul 2014 05:46:53 +0000 (22:46 -0700)]
Input: alps - use single touch data when v3 mt data contains only one finger

For v3 protocol devices, use the more accurate single touch data when the
mt data contains only one finger. Note the mt data reporting a finger count
of 1 should never happen, but better safe then sorry.

This brings the v3 bitmap handling in line with what the v4 code does,
allowing to factor out the common bits into a helper function.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: alps - use standard contact tracking instead of DIY
Hans de Goede [Sat, 26 Jul 2014 05:44:42 +0000 (22:44 -0700)]
Input: alps - use standard contact tracking instead of DIY

When there are 2 fingers on the pad we don't know which one is which, so
use input_mt_assign_slots to make sure the right set of coordinates ends
up in the right slot.

Besides ensuring things end up in the right slot, this also results in a
nice cleanup, since sync_frame also handles non mt position and btn_touch
reporting.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: alps - use struct input_mt_pos to track coordinates
Hans de Goede [Sat, 26 Jul 2014 05:43:35 +0000 (22:43 -0700)]
Input: alps - use struct input_mt_pos to track coordinates

This is a preparation patch for switching the DIY mt handling to using
input_mt_assign_slots && input_mt_sync_frame.

struct alps_fields is quite large, so while making changes to almost all uses
of it lets put it in our priv data instead of on the stack.

Having it in our priv data also allows using it directly for storing values
which need to be cached, rather then having separate x, y, z, fingers, etc.
copies in our priv data.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: alps - process_bitmap: round down when spreading adjescent fingers over 2...
Hans de Goede [Sat, 26 Jul 2014 05:42:53 +0000 (22:42 -0700)]
Input: alps - process_bitmap: round down when spreading adjescent fingers over 2 points

This fixes 2 fingers at the same height or width on the touchpad getting
reported at different y / x coordinates.

Note num_bits is always at least 1.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: alps - process_bitmap: fix counting of high point bits
Hans de Goede [Sat, 26 Jul 2014 05:41:51 +0000 (22:41 -0700)]
Input: alps - process_bitmap: fix counting of high point bits

alps_process_bitmap was resetting the point bit-count as soon as it saw
2 0 bits in a row. This means that unless the high point actually is at
the end of the bitmap, it would always get its num_bits set to 0.

Instead reset num_bits to 0 on a 0->1 transition, so that with > 2 fingers
we only count the number of bits occupied by the highest finger.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: alps - process_bitmap: add alps_get_bitmap_points() helper function
Hans de Goede [Sat, 26 Jul 2014 05:38:51 +0000 (22:38 -0700)]
Input: alps - process_bitmap: add alps_get_bitmap_points() helper function

Factor out the identical code for getting the bitmap points for x and y into
a helper function.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: alps - process_bitmap: don't invert the Y-axis on Rushmore
Hans de Goede [Sat, 26 Jul 2014 05:37:15 +0000 (22:37 -0700)]
Input: alps - process_bitmap: don't invert the Y-axis on Rushmore

Rushmore models don't have the Y-axis data in the bitmap inverted. Since
we now have 2 different Y orientations, make the Y bitmap data processing
use a forward loop like the X bitmap data processing, unifying the 2,
and invert the data later, except on Rushmore.

So far no-one has noticed this because the synaptics driver only uses the
non mt coordinates (except on clickpads, and there are no alps clickpads
using process_bitmap).

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: alps - improve 2-finger reporting on v3 models
Hans de Goede [Sat, 26 Jul 2014 05:33:33 +0000 (22:33 -0700)]
Input: alps - improve 2-finger reporting on v3 models

V3 models only report mt bitmap data when there are 2 or more fingers on
the touchpad. So always generate 2 positions in alps_process_bitmap, and
for v3 models only fall back to st data when there was no mt data in a
mt packet (which should never happen).

This fixes 2 finger scrolling not working when using 2 fingers close to
each other.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: alps - fix rushmore packet decoding
Yunkang Tang [Sat, 26 Jul 2014 05:29:24 +0000 (22:29 -0700)]
Input: alps - fix rushmore packet decoding

Signed-off-by: Yunkang Tang <yunkang.tang@cn.alps.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: soc_button_array - add missing memory allocation check
Pramod Gurav [Sat, 26 Jul 2014 01:41:39 +0000 (18:41 -0700)]
Input: soc_button_array - add missing memory allocation check

Signed-off-by: Pramod Gurav <pramod.gurav@smartplayin.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: wacom - register an ac power supply for wireless devices
Benjamin Tissoires [Sat, 26 Jul 2014 00:32:41 +0000 (17:32 -0700)]
Input: wacom - register an ac power supply for wireless devices

This is used by HID Bluetooth devices but also add some more information
to the USB Wireless Receiver.
We are just porting the bits from hid-wacom.c to the common driver here.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Przemo Firszt <przemo@firszt.eu>
Acked-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: wacom - use a uniq name for the battery device
Benjamin Tissoires [Sat, 26 Jul 2014 00:31:51 +0000 (17:31 -0700)]
Input: wacom - use a uniq name for the battery device

The current implementation uses "wacom_battery" as a generic name for
batteries. This prevents us to have two Wacom devices with a battery
attached as the power system will complain about the name which is already
registered.

Use an incremental name for each battery attached.

Related bug:
https://sourceforge.net/p/linuxwacom/bugs/248/

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Przemo Firszt <przemo@firszt.eu>
Acked-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: wacom - enhance Wireless Receiver battery reporting
Benjamin Tissoires [Sat, 26 Jul 2014 00:29:48 +0000 (17:29 -0700)]
Input: wacom - enhance Wireless Receiver battery reporting

- Reports the current status of the battery (discharging, charging, full).
- Also notify the upower daemon when there is a change in the battery
  value.
- keep the battery value as a percentage, not the raw value
- add WACOM_QUIRK_BATTERY to easily add a battery to a device (required
  for Bluetooth devices)

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Przemo Firszt <przemo@firszt.eu>
Acked-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: wacom - put a flag when the led are initialized
Benjamin Tissoires [Thu, 24 Jul 2014 20:16:17 +0000 (13:16 -0700)]
Input: wacom - put a flag when the led are initialized

This solves a bug with the wireless receiver:
- at plug, the wireless receiver does not know which Wacom device it is
  connected to, so it does not actually creates all the LEDs
- when the tablet connects, wacom->wacom_wac.features.type is set to the
  proper device so that wacom_wac can understand the packets
- when the receiver is unplugged, it detects that a LED should have been
  created (based on wacom->wacom_wac.features.type) and tries to remove
  it: crash when removing the sysfs group.

Side effect, we can now safely call several times wacom_destroy_leds().

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: wacom - support up to 2048 pressure levels with ISDv4
Jason Gerecke [Thu, 24 Jul 2014 20:15:31 +0000 (13:15 -0700)]
Input: wacom - support up to 2048 pressure levels with ISDv4

Signed-off-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: wacom - move the USB (now hid) Wacom driver in drivers/hid
Benjamin Tissoires [Thu, 24 Jul 2014 20:10:09 +0000 (13:10 -0700)]
Input: wacom - move the USB (now hid) Wacom driver in drivers/hid

wacom.ko is now a full HID driver, we have to move it into the proper
subdirectory: drivers/hid.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: wacom - keep wacom_ids ordered
Benjamin Tissoires [Thu, 24 Jul 2014 20:05:49 +0000 (13:05 -0700)]
Input: wacom - keep wacom_ids ordered

No Functional changes, just some reordering.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Jason Gerecke <killertofu@gmail.com>
Tested-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: wacom - remove field pktlen declaration in the list of devices
Benjamin Tissoires [Thu, 24 Jul 2014 20:05:19 +0000 (13:05 -0700)]
Input: wacom - remove field pktlen declaration in the list of devices

pktlen is now overwritten by the driver directly by reading the hid
report descriptor. There is no need to declare it statically.
We also move down the position of the field in the struct so that
we can keep the current declaration of Wacom devices.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Jason Gerecke <killertofu@gmail.com>
Tested-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: wacom - use hidinput_calc_abs_res instead of duplicating its code
Benjamin Tissoires [Thu, 24 Jul 2014 20:03:05 +0000 (13:03 -0700)]
Input: wacom - use hidinput_calc_abs_res instead of duplicating its code

This may infer a small difference with the previous implementation
due to the DIV_ROUND_CLOSEST() in the hid implementation.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Jason Gerecke <killertofu@gmail.com>
Tested-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: wacom - use in-kernel HID parser
Benjamin Tissoires [Thu, 24 Jul 2014 20:02:14 +0000 (13:02 -0700)]
Input: wacom - use in-kernel HID parser

HID already parses the report descriptor, so use it instead of implementing
our own.  The special case for Bamboo PT 3rd gen is also removed and
handled in the same way Intuos 5 is treated, by hardcoding it in the
driver.  Last, the unit_exponent stored into the hid field already is
signed, so there is no need to handle a two's complement anymore.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Jason Gerecke <killertofu@gmail.com>
Tested-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: wacom - use hid_info instead of plain dev_info
Benjamin Tissoires [Thu, 24 Jul 2014 20:01:56 +0000 (13:01 -0700)]
Input: wacom - use hid_info instead of plain dev_info

Removes one more need of usb and intf.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Jason Gerecke <killertofu@gmail.com>
Tested-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: wacom - register power device at the HID level
Benjamin Tissoires [Thu, 24 Jul 2014 20:01:40 +0000 (13:01 -0700)]
Input: wacom - register power device at the HID level

Use the HID device as the parent for the power device when dealing with
a wireless receiver.
Removes one more usb dependency and does not break user space.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Jason Gerecke <killertofu@gmail.com>
Tested-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: wacom - remove usb dependency for siblings devices
Benjamin Tissoires [Thu, 24 Jul 2014 20:01:05 +0000 (13:01 -0700)]
Input: wacom - remove usb dependency for siblings devices

Wacom tablets can share different physical sensors on one physical device.
These are called siblings in the code. The current way of implementation
relies on the USB topology to be able to share data amongs those sensors.

We can replace the code to match a HID subsystem, without involving the USB
topology:
- the first probed sensor does not find any siblings in the list
  wacom_udev_list, so it creates its own wacom_hdev_data with its own
  struct hid_device
- the other sensor checks the current list of siblings in wacom_hdev_data,
  and if there is a match, it associates itself to the matched device.

To be sure that we are not associating different sensors from different
physical devices, we also check for the phys path of the hid device which
contains the USB topology.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Jason Gerecke <killertofu@gmail.com>
Tested-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: wacom - register the input devices on top of the HID one
Benjamin Tissoires [Thu, 24 Jul 2014 20:00:03 +0000 (13:00 -0700)]
Input: wacom - register the input devices on top of the HID one

Matches the current behavior of the HID subsystem and removes one more
dependency over USB.

The current user space clients which relies on this to fetch the
LEDs path need an update. However, we already break them in the
kernel v3.11 for the Bluetooth Wacom devices. They are going to be fixed
soon.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Jason Gerecke <killertofu@gmail.com>
Tested-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: wacom - install LED/OLED sysfs files in the HID device instead of USB
Benjamin Tissoires [Thu, 24 Jul 2014 19:59:45 +0000 (12:59 -0700)]
Input: wacom - install LED/OLED sysfs files in the HID device instead of USB

Removes one more dependency over USB, but requires some changes in
the user space to find the sysfs files correctly.

This patch breaks the user space. However, the number of program
accessing the LEDs is quite limited and we can easily patch them
to handle the new HID behavior.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Jason Gerecke <killertofu@gmail.com>
Tested-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: wacom - compute the HID report size to get the actual packet size
Benjamin Tissoires [Thu, 24 Jul 2014 19:59:11 +0000 (12:59 -0700)]
Input: wacom - compute the HID report size to get the actual packet size

This removes an USB dependency and is more accurate: the computed pktlen
is the actual maximum size of the reports forwarded by the device.

Given that the pktlen is correctly computed/validated, we can store it now
in the features struct instead of having a special handling in the rest of
the code.

Likewise, this information is not mandatory anymore in the description
of devices in wacom_wac.c. They will be removed in a separate patch.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Jason Gerecke <killertofu@gmail.com>
Tested-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: wacom - use HID core to actually fetch the report descriptor
Benjamin Tissoires [Thu, 24 Jul 2014 19:58:45 +0000 (12:58 -0700)]
Input: wacom - use HID core to actually fetch the report descriptor

HID core already retrieves the report descritor. There is no need
to ask ourself for one.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Jason Gerecke <killertofu@gmail.com>
Tested-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: wacom - use hid communication instead of plain usb
Benjamin Tissoires [Thu, 24 Jul 2014 19:56:22 +0000 (12:56 -0700)]
Input: wacom - use hid communication instead of plain usb

Wacom.ko was a plain USB driver for a HID device. The communications
from/to the devices can actually be replaced with the HID API.

At the USB level, the reports are exactly the same.

This will allow to use uhid virtual devices instead of true USB devices.
This step is necessary to implement regression tests.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Jason Gerecke <killertofu@gmail.com>
Tested-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: wacom - switch from an USB driver to a HID driver
Benjamin Tissoires [Thu, 24 Jul 2014 19:52:23 +0000 (12:52 -0700)]
Input: wacom - switch from an USB driver to a HID driver

All USB Wacom tablets are actually HID devices.
For historical reasons, they are handled as plain USB devices.
The current code makes more and more reference to the HID subsystem
like implementing its own HID report descriptor parser to handle new
devices.

From the user point of view, we can transparently switch from this state
to a driver handled in the HID subsystem and clean up a lot of USB specific
code in the wacom.ko driver.

The other benefit once the USB dependecies have been removed is that we can
use a tool like uhid to make regression tests and allow further cleanup or
new implementations without risking breaking current behaviors.

To match the current handling of devices in wacom_wac.c, we rely on the
hid_type set by usbhid. usbhid sets the hid_type to HID_TYPE_USBMOUSE when
it sees a USB boot mouse protocol declared and HID_TYPE_USBNONE when the
device is plain HID. There is thus a one to one matching between the list
of supported devices before and after the switch from USB to HID.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Jason Gerecke <killertofu@gmail.com>
Tested-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: wacom - include and use linux/hid.h
Benjamin Tissoires [Thu, 24 Jul 2014 19:52:00 +0000 (12:52 -0700)]
Input: wacom - include and use linux/hid.h

The current wacom code redefines constants that are already in linux/hid.h
This patch includes the official implementation and use it accross the code.

There is a conflict with HID_USAGE and others at the same level:
- in the wacom.ko implementation, those are the #define regarding the
  value of the field in the report descriptor
- in the hid.h, those are bitmask
So add HDESC_ in their current definition.

Also, the struct hid_descriptor slightly differs from the linux/hid.h
point of view, so mark it as custom for this driver.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Jason Gerecke <killertofu@gmail.com>
Tested-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: wacom - split out the pad device for the wireless receiver
Benjamin Tissoires [Thu, 24 Jul 2014 19:51:26 +0000 (12:51 -0700)]
Input: wacom - split out the pad device for the wireless receiver

The Wireless Receiver should also behave in the same way than regular
USB devices.

To simplify the unregistering of the different devices,
wacom_unregister_inputs() is introduced.
For consistency, the function wacom_register_input() is renamed into
wacom_register_inputs().

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Reviewed-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: wacom - split out the pad device for Graphire G4 and MO
Benjamin Tissoires [Thu, 24 Jul 2014 19:51:03 +0000 (12:51 -0700)]
Input: wacom - split out the pad device for Graphire G4 and MO

MSC_SERIAL can be safely removed from pad devices. If it is not
here, xf86-input-wacom correctly generates ones for its internal
use.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Reviewed-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: wacom - split out the pad device for DTUS
Benjamin Tissoires [Thu, 24 Jul 2014 19:50:39 +0000 (12:50 -0700)]
Input: wacom - split out the pad device for DTUS

MSC_SERIAL can be safely removed from the pad device.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Reviewed-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: wacom - split out the pad device for Bamboos
Benjamin Tissoires [Thu, 24 Jul 2014 19:50:10 +0000 (12:50 -0700)]
Input: wacom - split out the pad device for Bamboos

We rely on the return code of wacom_bpt*() to do the input_sync().
wacom_wac_irq() then properly sync the input devices.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Reviewed-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: wacom - split out the pad device for Intuos/Cintiq
Benjamin Tissoires [Thu, 24 Jul 2014 19:49:08 +0000 (12:49 -0700)]
Input: wacom - split out the pad device for Intuos/Cintiq

MSC_SERIAL can be safely dropped for pad input devices.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Reviewed-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: wacom - create a separate input device for pads
Benjamin Tissoires [Thu, 24 Jul 2014 19:48:28 +0000 (12:48 -0700)]
Input: wacom - create a separate input device for pads

Currently, the pad events are sent through the stylus input device
for the Intuos/Cintiqs, and through the touch input device for the
Bamboos.

To differentiate the buttons pressed on the pad from the ones pressed
on the stylus, the Intuos/Cintiq uses MISC_SERIAL and ABS_MISC. This
lead to a multiplexing of the events into one device, which are then
splitted out in xf86-input-wacom. Bamboos are not using MISC events
because the pad is attached to the touch interface, and only BTN_TOUCH
is used for the finger (and DOUBLE_TAP, etc...). However, the user space
driver still splits out the pad from the touch interface in the same
way it does for the pro line devices.

The other problem we can see with this fact is that some of the Intuos
and Cintiq have a wheel, and the effective range of the reported values
is [0..71]. Unfortunately, the airbrush stylus also sends wheel events
(there is a small wheel on it), but in the range [0..1023]. From the user
space point of view it is kind of difficult to understand that because
the wheel on the pad are quite common, while the airbrush tool is not.

A solution to fix all of these problems is to split out the pad device
from the stylus/touch. This decision makes more sense because the pad is
not linked to the absolute position of the finger or pen, and usually, the
events from the pad are filtered out by the compositor, which then convert
them into actions or keyboard shortcuts.

For backward compatibility with current xf86-input-wacom, the pad devices
still present the ABS_X, ABS_Y and ABS_MISC events, but they can be
completely ignored in the new implementation.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Reviewed-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: wacom - assign phys field from struct wacom into input_dev
Benjamin Tissoires [Thu, 24 Jul 2014 19:48:06 +0000 (12:48 -0700)]
Input: wacom - assign phys field from struct wacom into input_dev

This field was not used for 9 years, it is time to assign it.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: Revert "wacom - testing result shows get_report is unnecessary."
Benjamin Tissoires [Thu, 24 Jul 2014 19:47:47 +0000 (12:47 -0700)]
Input: Revert "wacom - testing result shows get_report is unnecessary."

This reverts commit 1b2faaf7e219fc2905d75afcd4c815e5d39eda80.

The Intuos4 series presents a bug in which it hangs if it receives
a set feature command while switching to the enhanced mode.
This bug is triggered when plugging an Intuos 4 while having
a gnome user session up and running.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Aristeu Rozanski <aris@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: wacom_serial4 - prepare for wacom USB moving to HID
Dmitry Torokhov [Thu, 24 Jul 2014 20:27:18 +0000 (13:27 -0700)]
Input: wacom_serial4 - prepare for wacom USB moving to HID

wacom_wac.h will be moving to drivers/hid. Since we only need 3 definitions
from it let's simply copy them over.

Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: ipaq-micro-ts - introduce open/close
Dmitry Torokhov [Wed, 23 Jul 2014 17:03:10 +0000 (10:03 -0700)]
Input: ipaq-micro-ts - introduce open/close

Wire up open/close so we do not try to send events until someone uses them;
this also allows us to remove micro_ts_remove() and rely fully on managed
resources.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: driver for touchscreen on iPaq h3xxx
Dmitry Artamonow [Wed, 23 Jul 2014 16:56:01 +0000 (09:56 -0700)]
Input: driver for touchscreen on iPaq h3xxx

This adds a driver for the touchscreen connected to the Atmel
microcontroller on the iPAQ h3xxx series.

Based on a driver from handhelds.org 2.6.21 kernel, written by Alessandro
GARDICH, with the bulk of the code for the new input architecture rewritten
by Dmitry Atamonow, and the final polish by Linus Walleij.

Signed-off-by: Alessandro GARDICH <gremlin@gremlin.it>
Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoMerge tag 'v3.16-rc6' into next
Dmitry Torokhov [Thu, 24 Jul 2014 19:36:56 +0000 (12:36 -0700)]
Merge tag 'v3.16-rc6' into next

Merge with mainline to bring in changes to MFD to allow merging
ipaq-micro-ts driver.

6 years agoInput: atmel_mxt_ts - implement T44 message handling
Nick Dyer [Wed, 23 Jul 2014 19:49:04 +0000 (12:49 -0700)]
Input: atmel_mxt_ts - implement T44 message handling

maXTouch chips allow the reading of multiple messages in a single I2C
transaction, which reduces bus overhead and improves performance/latency. The
number of messages available to be read is given by the value in the T44
object which is located directly before the T5 object.

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>
6 years agoInput: atmel_mxt_ts - split message handler into separate functions
Nick Dyer [Wed, 23 Jul 2014 19:48:13 +0000 (12:48 -0700)]
Input: atmel_mxt_ts - split message handler into separate functions

This is in preparation for support of the T44 message count object.

Also, cache T5 address to avoid lookup on every interrupt cycle.

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>
6 years agoInput: atmel_mxt_ts - decode T6 status messages
Nick Dyer [Wed, 23 Jul 2014 19:47:50 +0000 (12:47 -0700)]
Input: atmel_mxt_ts - decode T6 status messages

By storing the previous T6 status byte multiple debug output of the same
status can be suppressed (for example CFGERR).

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>
6 years agoInput: atmel_mxt_ts - add support for dynamic message size
Nick Dyer [Wed, 23 Jul 2014 19:46:55 +0000 (12:46 -0700)]
Input: atmel_mxt_ts - add support for dynamic message size

The T5 object may have various sizes depending on the objects used on the
particular maXTouch chip and firmware version, therefore it can't be
hardcoded in the driver. Allocate a buffer on probe instead.

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>
6 years agoInput: atmel_mxt_ts - recover from bootloader on probe
Nick Dyer [Wed, 23 Jul 2014 19:45:49 +0000 (12:45 -0700)]
Input: atmel_mxt_ts - recover from bootloader on probe

The MXT device may be in bootloader mode on probe, due to:
1) APP CRC failure, either:
  a) flash corruption
  b) bad power or other intermittent problem while checking CRC
2) If the device has been reset 10 or more times without accessing comms
3) Warm probe, device was in bootloader mode already

This code attempts to recover from 1(b) and 3.

There is an additional complexity: we have to try two possible bootloader
addresses because the mapping is not one-to-one and we don't know the exact
model yet.

Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Acked-by: Yufeng Shen <miletus@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: atmel_mxt_ts - add bootloader addresses for new chips
Nick Dyer [Wed, 23 Jul 2014 19:45:26 +0000 (12:45 -0700)]
Input: atmel_mxt_ts - add bootloader addresses for new chips

Later chips (for example mXT1664S) different mappings for bootloader
addresses.  This means that we must look at the family ID to determine
which address to use.

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>
6 years agoInput: atmel_mxt_ts - handle bootloader previously unlocked
Nick Dyer [Wed, 23 Jul 2014 19:42:40 +0000 (12:42 -0700)]
Input: atmel_mxt_ts - handle bootloader previously unlocked

On a warm probe, the device might be in a state where an flash operation was
not completed.

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>
6 years agoInput: atmel_mxt_ts - handle APP_CRC_FAIL on startup
Nick Dyer [Wed, 23 Jul 2014 19:41:58 +0000 (12:41 -0700)]
Input: atmel_mxt_ts - handle APP_CRC_FAIL on startup

If the bootloader on the touchscreen controller fails to initialise the
firmware image, it stays in bootloader mode and reports a failure. It is
possible to reflash a working firmware image from this state.

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>
6 years agoInput: atmel_mxt_ts - calculate and check CRC in config file
Nick Dyer [Wed, 23 Jul 2014 19:40:09 +0000 (12:40 -0700)]
Input: atmel_mxt_ts - calculate and check CRC in config file

By validating the checksum, we can identify if the configuration is
corrupt.  In addition, this patch writes the configuration in a short
series of block writes rather than as many individual values.

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>
6 years agoInput: atmel_mxt_ts - download device config using firmware loader
Nick Dyer [Wed, 23 Jul 2014 19:38:48 +0000 (12:38 -0700)]
Input: atmel_mxt_ts - download device config using firmware loader

The existing implementation which encodes the configuration as a binary
blob in platform data is unsatisfactory since it requires a kernel
recompile for the configuration to be changed, and it doesn't deal well
with firmware changes that move values around on the chip.

Atmel define an ASCII format for the configuration which can be exported
from their tools. This patch implements a parser for that format which
loads the configuration via the firmware loader and sends it to the MXT
chip.

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>
6 years agoInput: atmel_mxt_ts - implement device tree support
Stephen Warren [Wed, 23 Jul 2014 19:23:23 +0000 (12:23 -0700)]
Input: atmel_mxt_ts - implement device tree support

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: atmel_mxt_ts - set pointer emulation on touchpads
Benson Leung [Wed, 23 Jul 2014 19:22:27 +0000 (12:22 -0700)]
Input: atmel_mxt_ts - set pointer emulation on touchpads

Touchpads are pointers, so make sure to pass the correct values to
input_mt_report_pointer_emulation(). Without this, tap-to-click doesn't
work.

Signed-off-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: atmel_mxt_ts - move input device init into separate function
Nick Dyer [Wed, 23 Jul 2014 19:21:26 +0000 (12:21 -0700)]
Input: atmel_mxt_ts - move input device init into separate function

It is useful to initialise the input device later:
- Screen parameters may not be not known yet, for instance if waiting for
  firmware loader to return.
- Device may be in bootloader mode on probe (but could still be recovered by
  firmware download).

In addition, later devices have a different touchscreen object (T100) which
requires handling differently.

This also reduces the complexity of the probe function.

Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Acked-by: Yufeng Shen <miletus@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: atmel_mxt_ts - initialise IRQ before probing
Nick Dyer [Wed, 23 Jul 2014 18:25:55 +0000 (11:25 -0700)]
Input: atmel_mxt_ts - initialise IRQ before probing

The maXTouch chips use the CHG line to generate status events in bootloader
mode, and during configuration download, before there is enough information
to configure the input device. Therefore set up the interrupt handler
earlier.

However, this introduces states where parts of the interrupt processing
must not run. Use data->object_table as a way to tell whether the chip
information is valid, and data->input_dev as a way to tell whether it is
valid to generate input report.

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>
6 years agoInput: document INPUT_PROP_TOPBUTTONPAD
Peter Hutterer [Tue, 22 Jul 2014 00:51:35 +0000 (17:51 -0700)]
Input: document INPUT_PROP_TOPBUTTONPAD

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: uinput - add UI_GET_VERSION ioctl
David Herrmann [Mon, 21 Jul 2014 00:27:09 +0000 (17:27 -0700)]
Input: uinput - add UI_GET_VERSION ioctl

This ioctl is the counterpart to EVIOCGVERSION and returns the
uinput-version the kernel was compiled with.

Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: uinput - uinput_validate_absbits() cleanup
David Herrmann [Mon, 21 Jul 2014 00:16:23 +0000 (17:16 -0700)]
Input: uinput - uinput_validate_absbits() cleanup

This moves basic checks and setup from uinput_setup_device() into
uinput_validate_absbits() to make it easier to use. This way, we can call
it from other places without copying the boilerplate code.

Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoInput: zforce - add regulator handling
Heiko Stuebner [Mon, 21 Jul 2014 17:02:11 +0000 (10:02 -0700)]
Input: zforce - add regulator handling

It's possible that the controller has an individually switchable power supply.
Therefore add support to control a supplying regulator.

As this is not always the case, the regulator is requested as optional.

Signed-off-by: Heiko Stuebner <heiko.stuebner@bq.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
6 years agoLinux 3.16-rc6 v3.16-rc6
Linus Torvalds [Mon, 21 Jul 2014 04:04:16 +0000 (21:04 -0700)]
Linux 3.16-rc6

6 years agoMerge tag 'staging-3.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Mon, 21 Jul 2014 03:44:53 +0000 (20:44 -0700)]
Merge tag 'staging-3.16-rc6' of git://git./linux/kernel/git/gregkh/staging

Pull more IIO driver fixes from Greg KH:
 "Here are two IIO driver fixes for 3.16-rc6 that resolve some reported
  issues"

* tag 'staging-3.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  iio: mma8452: Use correct acceleration units.
  iio:core: Handle error when mask type is not separate

6 years agoMerge tag 'usb-3.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Mon, 21 Jul 2014 03:44:18 +0000 (20:44 -0700)]
Merge tag 'usb-3.16-rc6' of git://git./linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are two USB patches that resolve some reported issues, one with
  an odd HUB, and one in the chipidea driver"

* tag 'usb-3.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: Check if port status is equal to RxDetect
  usb: chipidea: udc: Disable auto ZLP generation on ep0

6 years agoMerge tag 'driver-core-3.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Mon, 21 Jul 2014 03:43:46 +0000 (20:43 -0700)]
Merge tag 'driver-core-3.16-rc6' of git://git./linux/kernel/git/gregkh/driver-core

Pull driver core fix from Greg KH:
 "Here is a single driver core fix that reverts an older patch that has
  been causing a number of reported problems with the platform devices.

  This revert has been in linux-next for a while with no reported issues"

* tag 'driver-core-3.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  platform_get_irq: Revert to platform_get_resource if of_irq_get fails

6 years agoMerge tag 'char-misc-3.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregk...
Linus Torvalds [Mon, 21 Jul 2014 03:43:14 +0000 (20:43 -0700)]
Merge tag 'char-misc-3.16-rc6' of git://git./linux/kernel/git/gregkh/char-misc

Pull char/misc fix from Greg KH:
 "Here's a single hyper-v driver fix for a reported issue"

* tag 'char-misc-3.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  Drivers: hv: hv_fcopy: fix a race condition for SMP guest

6 years agoMerge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds [Mon, 21 Jul 2014 03:39:28 +0000 (20:39 -0700)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

Pull intel drm fixes from Dave Airlie:
 "Intel fixes came in late, but since I debugged one of them I'll send
  them on,

  Two reverts, a quirk and one warn regression"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  Revert "drm/i915: reverse dp link param selection, prefer fast over wide again"
  drm/i915: Track the primary plane correctly when reassigning planes
  drm/i915: Ignore VBT backlight presence check on HP Chromebook 14
  Revert "drm/i915: Don't set the 8to6 dither flag when not scaling"

6 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml
Linus Torvalds [Mon, 21 Jul 2014 03:28:04 +0000 (20:28 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/rw/uml

Pull UML fixes from Richard Weinberger:
 "Four fixes, all discovered by Trinity"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
  um: segv: Save regs only in case of a kernel mode fault
  um: Fix hung task in fix_range_common()
  um: Ensure that a stub page cannot get unmapped
  Revert "um: Fix wait_stub_done() error handling"

6 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux...
Linus Torvalds [Mon, 21 Jul 2014 03:21:05 +0000 (20:21 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mason/linux-btrfs

Pull btrfs fixes from Chris Mason:
 "We have two more fixes in my for-linus branch.

  I was hoping to also include a fix for a btrfs deadlock with
  compression enabled, but we're still nailing that one down"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  btrfs: test for valid bdev before kobj removal in btrfs_rm_device
  Btrfs: fix abnormal long waiting in fsync

6 years agoMerge tag 'nfs-for-3.16-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Linus Torvalds [Mon, 21 Jul 2014 02:55:44 +0000 (19:55 -0700)]
Merge tag 'nfs-for-3.16-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client fixes from Trond Myklebust:
 "Apologies for the relative lateness of this pull request, however the
  commits fix some issues with the NFS read/write code updates in
  3.16-rc1 that can cause serious Oopsing when using small r/wsize.  The
  delay was mainly due to extra testing to make sure that the fixes
  behave correctly.

  Highlights include;
   - Stable fix for an NFSv3 posix ACL regression
   - Multiple fixes for regressions to the NFS generic read/write code:
     - Fix page splitting bugs that come into play when a small
       rsize/wsize read/write needs to be sent again (due to error
       conditions or page redirty)
     - Fix nfs_wb_page_cancel, which is called by the "invalidatepage"
       method
   - Fix 2 compile warnings about unused variables
   - Fix a performance issue affecting unstable writes"

* tag 'nfs-for-3.16-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  NFS: Don't reset pg_moreio in __nfs_pageio_add_request
  NFS: Remove 2 unused variables
  nfs: handle multiple reqs in nfs_wb_page_cancel
  nfs: handle multiple reqs in nfs_page_async_flush
  nfs: change find_request to find_head_request
  nfs: nfs_page should take a ref on the head req
  nfs: mark nfs_page reqs with flag for extra ref
  nfs: only show Posix ACLs in listxattr if actually present

6 years agoInput: s3c2410_ts - fix preparing/enabling clock
Vasily Khoruzhick [Wed, 9 Jul 2014 00:57:42 +0000 (17:57 -0700)]
Input: s3c2410_ts - fix preparing/enabling clock

Use clk_prepare_enable/clk_disable_unprepare to make the driver
work properly with common clock framework.

Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>