linux.git/Documentation/devicetree/bindings/input/touchscreen, branch v4.6

Merge tag 'mfd-for-linus-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

2016-03-18T17:15:11+00:00

Pull MFD updates from Lee Jones:
 "New Drivers:
   - Freescale Touch Screen ADC
   - X-Powers AXP PMIC with RSB
   - TI TPS65086 Power Management IC (PMIC)

  New Device Support:
   - Supply device PCI IDs for Intel Broxton

  Fix-ups:
   - Move to clkdev_create() API; intel_quark_i2c_gpio
   - Complete re-write of TI's TPS65912 Power Management IC (PMIC)
   - Remove unnecessary function argument; axp20x
   - Separate out bus related code; axp20x
   - Coding Style changes; axp20x
   - Allow more drivers to be compiled as modules
   - Work around false positive 'used uninitialised' warning; db8500-prcmu

  Bug Fixes:
   - Remove do_div(); fsl-imx25-gcq
   - Fix driver init when built-in; tps65010
   - Fix clock-unregister leak; intel-lpss"

* tag 'mfd-for-linus-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (53 commits)
  mfd: intel-lpss: Pass I2C configuration via properties on BXT
  mfd: imx6sx: Add PCIe register definitions for iomuxc gpr
  mfd: ipaq-micro: Use __maybe_unused to hide pm functions
  mfd: max77686: Add max77802 to I2C device ID table
  mfd: max77686: Export OF module alias information
  mfd: max77686: Allow driver to be built as a module
  mfd: stmpe: Add the proper PWM resources
  mfd: tps65090: Set regmap config reg counts properly
  mfd: syscon: Return ENOTSUPP instead of ENOSYS when disabled
  mfd: as3711: Set regmap config reg counts properly
  mfd: rc5t583: Set regmap config reg counts properly
  gpio: tps65086: Add GPO driver for the TPS65086 PMIC
  mfd: mt6397: Add platform device ID table
  mfd: da9063: Fix missing volatile registers in the core regmap_range volatile lists
  mfd: mt6397: Add MT6323 support to MT6397 driver
  mfd: mt6397: Add support for different Slave types
  mfd: mt6397: int_con and int_status may vary in location
  dt-bindings: mfd: Add bindings for the MediaTek MT6323 PMIC
  mfd: da9062: Fix missing volatile registers in the core regmap_range volatile lists
  mfd: Add documentation for ACT8945A DT bindings
  ...

Merge branch 'synaptics-rmi4' into next

2016-03-11T17:51:25+00:00

Bring in support for devices using Synaptics RMI4 protocol, including
RMI4 bus, 2D sensor and button handlers, and SPI and I2C interface
drivers.

Input: synaptics-rmi4 - add device tree support for 2d sensors and F11

2016-03-11T00:04:05+00:00

2D sensors have several parameter which can be set in the platform data.
This patch adds support for getting those values from devicetree.

Signed-off-by: Andrew Duggan 
Tested-by: Benjamin Tissoires 
Tested-by: Linus Walleij 
Tested-by: Bjorn Andersson 
Signed-off-by: Dmitry Torokhov

Input: ad7879 - add device tree support

2016-03-08T18:51:18+00:00

Add device tree support for the I2C and SPI variant of AD7879(-1).
This allows to specify the touchscreen controller as a I2C client
node or SPI slave device. Most of the options available in platform
data are also available as device tree properties, the only exception
being GPIO capabilities, which can not be activated through device
tree currently.

Signed-off-by: Stefan Agner 
Acked-by: Rob Herring 
Acked-by: Michael Hennerich 
Signed-off-by: Dmitry Torokhov

Input: add binding documentation for imx25 touchscreen controller

2016-02-11T15:40:20+00:00

This is the touchscreen conversion queue binding documentation. It uses
the shared imx25 ADC.

Signed-off-by: Markus Pargmann 
Acked-by: Rob Herring 
Signed-off-by: Lee Jones

Input: cyttsp - switch to using device properties

2016-01-27T22:32:48+00:00

Drop support for platform data passed via a C-structure and switch to
device properties instead, which should make the driver compatible
with all platforms: OF, ACPI and static boards. Static boards should
use property sets to communicate device parameters to the driver.

Signed-off-by: Oreste Salerno 
Acked-by: Rob Herring 
Signed-off-by: Dmitry Torokhov

Merge branch 'goodix' into next

2016-01-07T01:31:06+00:00

Merge several improvements to Goodix touchscreen driver:
- power management support
- configuration upload
- axis swapping and inversion

Input: goodix - add axis swapping and axis inversion support

2015-12-18T01:11:55+00:00

Implement support for the following device-tree and ACPI 5.1 DSD
properties in the goodix touchscreen driver:

 - touchscreen-inverted-x:  X axis is inverted (boolean)
 - touchscreen-inverted-y:  Y axis is inverted (boolean)
 - touchscreen-swapped-x-y: X and Y axis are swapped (boolean)

These are necessary on tablets which have a display in portrait
format while the touchscreen is in landscape format, such as e.g.
the MSI Primo 81.

Signed-off-by: Karsten Merker 
Tested-by: Bastien Nocera 
Tested-by: Irina Tirdea  (with ACPI DSD properties)
Tested-by: Aleksei Mamlin  (with device-tree properties)
Acked-by: Rob Herring 
Signed-off-by: Dmitry Torokhov

Input: goodix - reset device at init

2015-12-18T01:11:52+00:00

After power on, it is recommended that the driver resets the device.
The reset procedure timing is described in the datasheet and is used
at device init (before writing device configuration) and
for power management. It is a sequence of setting the interrupt
and reset pins high/low at specific timing intervals. This procedure
also includes setting the slave address to the one specified in the
ACPI/device tree.

This is based on Goodix datasheets for GT911 and GT9271 and on Goodix
driver gt9xx.c for Android (publicly available in Android kernel
trees for various devices).

For reset the driver needs to control the interrupt and
reset gpio pins (configured through ACPI/device tree). For devices
that do not have the gpio pins properly declared, the functionality
depending on these pins will not be available, but the device can still
be used with basic functionality.

For both device tree and ACPI, the interrupt gpio pin configuration is
read from the "irq-gpios" property and the reset pin configuration is
read from the "reset-gpios" property. For ACPI 5.1, named properties
can be specified using the _DSD section. This functionality will not be
available for devices that use indexed gpio pins declared in the _CRS
section (we need to provide backward compatibility with devices
that do not support using the interrupt gpio pin as output).

For ACPI, the pins can be specified using ACPI 5.1:
Device (STAC)
{
    Name (_HID, "GDIX1001")
    ...

    Method (_CRS, 0, Serialized)
    {
        Name (RBUF, ResourceTemplate ()
        {
            I2cSerialBus (0x0014, ControllerInitiated, 0x00061A80,
                AddressingMode7Bit, "\\I2C0",
                0x00, ResourceConsumer, ,
                )

            GpioInt (Edge, ActiveHigh, Exclusive, PullNone, 0x0000,
                "\\I2C0", 0x00, ResourceConsumer, ,
                 )
                 {   // Pin list
                     0
                 }

            GpioIo (Exclusive, PullDown, 0x0000, 0x0000,
                IoRestrictionOutputOnly, "\\I2C0", 0x00,
                ResourceConsumer, ,
                )
                {
                     1
                }
        })
        Return (RBUF)
    }

    Name (_DSD,  Package ()
    {
        ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
        Package ()
        {
            Package (2) {"irq-gpios", Package() {^STAC, 0, 0, 0 }},
            Package (2) {"reset-gpios", Package() {^STAC, 1, 0, 0 }},
            ...
        }
    }

Signed-off-by: Octavian Purdila 
Signed-off-by: Irina Tirdea 
Acked-by: Rob Herring 
Acked-by: Bastien Nocera 
Tested-by: Bastien Nocera 
Tested-by: Aleksei Mamlin 
Signed-off-by: Dmitry Torokhov

Input: add touchscreen support for TS-4800

2015-12-16T22:00:51+00:00

On this board, the touchscreen, an ads7843, is not handled directly by
Linux but by a companion FPGA. This FPGA is memory-mapped and the IP
design is very similar to the mk712.

This commit adds the support for this IP.

Signed-off-by: Damien Riegel 
Acked-by: Rob Herring 
Signed-off-by: Dmitry Torokhov