Refer to touchscreen.txt for generic touch properties. This avoids
duplication and we're using the generic code to parse these in the
driver. While at that add touchscreen-size-{x,y} which are respected by
the driver as well.
Signed-off-by: Guido Günther <agx@sigxcpu.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This is required to specify generic touchscreen properties via DT.
Signed-off-by: Matthias Fend <matthias.fend@wolfvision.net>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
AM654 SoCs has ADC IP which is similar to AM335x, but without the
touchscreen part. Add new compatible to handle AM654 SoCs. Also, it
seems that existing compatible strings used in the kernel DTs were never
documented. So, document them now.
Signed-off-by: Vignesh R <vigneshr@ti.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
The sx8654 and sx8650 are quite similar, therefore add support for the
sx8650 within the sx8654 driver.
Signed-off-by: Richard Leitner <richard.leitner@skidata.com>
Reviewed-by: Rob Herring <robh@kernel.org>
[dtor: use __be16 in sx8650_irq, add missing del_timer_sync]
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
As the sx865[456] share the same datasheet and differ only in the
presence of a "capacitive proximity detection circuit" and a "haptics
motor driver for LRA/ERM" add them to the compatbiles. As the driver
doesn't implement these features it should be no problem.
Signed-off-by: Richard Leitner <richard.leitner@skidata.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The sx8654 features a NRST input which may be connected to a GPIO.
Therefore add support for hard-resetting the sx8654 via this NRST.
If the reset-gpio property is provided the sx8654 is resetted via NRST
instead of the soft-reset via I2C.
Signed-off-by: Richard Leitner <richard.leitner@skidata.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add support for the Sitronix ST1633 touchscreen controller to the st1232
driver. A protocol spec can be found here:
www.ampdisplay.com/documents/pdf/AM-320480B6TZQW-TC0H.pdf
Signed-off-by: Martin Kepplinger <martin.kepplinger@ginzinger.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This adds the devicetree bindings for the STMPE ADC. This also corrects
a typo in st,sample-time it is rather "6 -> 124 clocks" according
to the datasheet and not 144.
We need to use the naming stmpe_adc in devicetree because this is given
by the mfd device.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This patch reformats the parameter list for stmpe device in a
table-style so it is more clear to read.
Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Unfortunately the evervision focaltech implementation uses two offset
registers, one for the x coordinate and one for y.
This patch extends the driver to handle those offset registers only for
devices that support these.
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Evervision displays are using different Focaltech touchscreen
controllers. This commit adds the initial support for the ones using the
FT5726 controller. Receiving the touch data is the same as for the
GENERIC_FT but the x and y cooridnates are swapped. The main differences
are the register addresses where the GAIN and THRESHOLD parameters are
stored.
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Merge tag 'v4.20' into next
Merge with mainline to bring in the new APIs.
Pull input updates from Dmitry Torokhov:
"A tiny pull request this merge window unfortunately, should get more
material in for the next release:
- new driver for Raspberry Pi's touchscreen (firmware interface)
- miscellaneous input driver fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: elan_i2c - add ACPI ID for touchpad in ASUS Aspire F5-573G
Input: atmel_mxt_ts - don't try to free unallocated kernel memory
Input: drv2667 - fix indentation issues
Input: touchscreen - fix coding style issue
Input: add official Raspberry Pi's touchscreen driver
Input: nomadik-ske-keypad - fix a loop timeout test
Input: rotary-encoder - don't log EPROBE_DEFER to kernel log
Input: olpc_apsp - remove set but not used variable 'np'
Input: olpc_apsp - enable the SP clock
Input: olpc_apsp - check FIFO status on open(), not probe()
Input: olpc_apsp - drop CONFIG_OLPC dependency
clk: mmp2: add SP clock
dt-bindings: marvell,mmp2: Add clock id for the SP clock
Input: ad7879 - drop platform data support
Add's support to Raspberry Pi's 7" Touch device. Instead of using a
conventional bus all information is copied into a memory mapped area by
RPi's firmware.
Based on the driver found in RPi's kernel repository.
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Some touchscreens, depending on the firmware and/or the digitizer, report
coordinates which never reach 0 along one or both of their axis.
This has been seen for example on the Silead touchscreens on a Onda V891w
and a Point of View mobii TAB-P800w(v2.0).
This commit adds support for touchscreen-min-x and touchscreen-min-y
device-properties which can be set to communicate the actual start
coordinates (rather then 0,0) to userspace.
This commit also drop the "(in pixels)" comment from the documentation
of the touchscreen-size-x and touchscreen-size-y properties. The comment
suggested that there is a relation between the range of reported
coordinates and the display resolution, which is only true for some
devices. The "(in pixels)" comment is replaced with "(maximum x coordinate
reported + 1)" to mirror the language describing the new touchscreen-min-x
and -min-y properties.
When set this fixes e.g. not being able to click things in the GNOME3
top-bar on the 2 example tablets.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull input updates from Dmitry Torokhov:
- a new driver for Rohm BU21029 touch controller
- new bitmap APIs: bitmap_alloc, bitmap_zalloc and bitmap_free
- updates to Atmel, eeti. pxrc and iforce drivers
- assorted driver cleanups and fixes.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (57 commits)
MAINTAINERS: Add PhoenixRC Flight Controller Adapter
Input: do not use WARN() in input_alloc_absinfo()
Input: mark expected switch fall-throughs
Input: raydium_i2c_ts - use true and false for boolean values
Input: evdev - switch to bitmap API
Input: gpio-keys - switch to bitmap_zalloc()
Input: elan_i2c_smbus - cast sizeof to int for comparison
bitmap: Add bitmap_alloc(), bitmap_zalloc() and bitmap_free()
md: Avoid namespace collision with bitmap API
dm: Avoid namespace collision with bitmap API
Input: pm8941-pwrkey - add resin entry
Input: pm8941-pwrkey - abstract register offsets and event code
Input: iforce - reorganize joystick configuration lists
Input: atmel_mxt_ts - move completion to after config crc is updated
Input: atmel_mxt_ts - don't report zero pressure from T9
Input: atmel_mxt_ts - zero terminate config firmware file
Input: atmel_mxt_ts - refactor config update code to add context struct
Input: atmel_mxt_ts - config CRC may start at T71
Input: atmel_mxt_ts - remove unnecessary debug on ENOMEM
Input: atmel_mxt_ts - remove duplicate setup of ABS_MT_PRESSURE
...
Here are the big staging/iio patches for 4.19-rc1.
Lots of churn here, with tons of cleanups happening in staging drivers,
a removal of an old crypto driver that no one was using (skein), and the
addition of some new IIO drivers. Also added was a "gasket" driver from
Google that needs loads of work and the erofs filesystem.
Even with adding all of the new drivers and a new filesystem, we are
only adding about 1000 lines overall to the kernel linecount, which
shows just how much cleanup happened, and how big the unused crypto
driver was.
All of these have been in the linux-next tree for a while now with no
reported issues.
Note, you will have a merge problem with a device tree IIO file and the
MAINTAINERS file, both resolutions are easy, just take all changed.
There will be a skein file merge issue as well, but that file got
deleted so just drop that.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging and IIO updates from Greg KH:
"Here are the big staging/iio patches for 4.19-rc1.
Lots of churn here, with tons of cleanups happening in staging
drivers, a removal of an old crypto driver that no one was using
(skein), and the addition of some new IIO drivers. Also added was a
"gasket" driver from Google that needs loads of work and the erofs
filesystem.
Even with adding all of the new drivers and a new filesystem, we are
only adding about 1000 lines overall to the kernel linecount, which
shows just how much cleanup happened, and how big the unused crypto
driver was.
All of these have been in the linux-next tree for a while now with no
reported issues"
* tag 'staging-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (903 commits)
staging:rtl8192u: Remove unused macro definitions - Style
staging:rtl8192u: Add spaces around '+' operator - Style
staging:rtl8192u: Remove stale comment - Style
staging: rtl8188eu: remove unused mp_custom_oid.h
staging: fbtft: Add spaces around / - Style
staging: fbtft: Erases some repetitive usage of function name - Style
staging: fbtft: Adjust some empty-line problems - Style
staging: fbtft: Removes one nesting level to help readability - Style
staging: fbtft: Changes gamma table to define.
staging: fbtft: A bit more information on dev_err.
staging: fbtft: Fixes some alignment issues - Style
staging: fbtft: Puts macro arguments in parenthesis to avoid precedence issues - Style
staging: rtl8188eu: remove unused array dB_Invert_Table
staging: rtl8188eu: remove whitespace, add missing blank line
staging: rtl8188eu: use is_multicast_ether_addr in rtw_sta_mgt.c
staging: rtl8188eu: remove whitespace - style
staging: rtl8188eu: cleanup block comment - style
staging: rtl8188eu: use is_multicast_ether_addr in rtl8188eu_xmit.c
staging: rtl8188eu: use is_multicast_ether_addr in recv_linux.c
staging: rtlwifi: refactor rtl_get_tcb_desc
...
- Remove an obsolete hack for PPC32 longtrail systems
- Make of_io_request_and_map() "name" arg optional
- Add vendor prefixes for bitmain, Asus, and Y Soft
- Remove 'interrupt-parent' from bindings as it is implicit
- New properties for wm8994 audio codec
- Add 'clocks' property support to SRAM binding
- Add binding for ASPEED coprocessor interrupt controller
- Various binding spelling and link fixes
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Merge tag 'devicetree-for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull Devicetree updates from Rob Herring:
- Remove an obsolete hack for PPC32 longtrail systems
- Make of_io_request_and_map() "name" arg optional
- Add vendor prefixes for bitmain, Asus, and Y Soft
- Remove 'interrupt-parent' from bindings as it is implicit
- New properties for wm8994 audio codec
- Add 'clocks' property support to SRAM binding
- Add binding for ASPEED coprocessor interrupt controller
- Various binding spelling and link fixes
* tag 'devicetree-for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
Documentation: remove dynamic-resolution-notes reference to non-existent file
dt-bindings: Add Y Soft Corporation vendor prefix
of/fdt: Remove PPC32 longtrail hack in memory scan
dt-bindings: remove 'interrupt-parent' from bindings
pinctrl: tegra: fix spelling in devicetree binding document
usb: dwc3: rockchip: Fix PHY documentation links.
dt-bindings: sound: wm8994: document wlf,csnaddr-pd property
dt-bindings: sound: wm8994: document wlf,spkmode-pu property
dt-bindings: sram: Add 'clocks' as an optional property
dt-bindings: Add vendor prefix for AsusTek Computer Inc.
dt-bindings: misc: ASPEED coprocessor interrupt controller
dt-bindings: gpio: pca953x: Document interrupts, update example
drivers/of: Make of_io_request_and_map() "name" argument optional
dt-bindings: Add bitmain vendor prefix
Documentation: devicetree: tilcdc: fix spelling mistake "suppors" -> "supports"
'interrupt-parent' is often documented as part of define bindings, but
it is really outside the scope of a device binding. It's never required
in a given node as it is often inherited from a parent node. Or it can
be implicit if a parent node is an 'interrupt-controller' node. So
remove it from all the binding files.
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Describe the bindings for EETI touchscreen controllers.
Signed-off-by: Daniel Mack <daniel@zonque.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Multiple binding documents have various forms of unbalanced quotation
marks. Fix them.
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Added bindings for generic resistive touchscreen ADC.
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Add a common touchscreen optional property that will specify
the minimum pressure applied to the screen that is needed
such that the driver will report the touch event.
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
- Convert to use memblock_virt_alloc in DT code which supports bootmem
arches. With this we can remove the arch specific
early_init_dt_alloc_memory_arch() functions.
- Enable running the DT unittests on UML
- Use SPDX license tags on DT files
- Fix early FDT kconfig ifdef logic
- Clean-up unittest Makefile
- Fix function comment for of_irq_parse_raw
- Add missing documentation for linux,initrd-{start,end} properties
- Clean-up of binding examples using uppercase hex
- Add trivial devices W83773G and Infineon TLV493D-A1B6
- Add missing STM32 SoC bindings
- Various small binding doc fixes
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Merge tag 'devicetree-for-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull DeviceTree updates from Rob Herring:
- Convert to use memblock_virt_alloc in DT code which supports
bootmem arches. With this we can remove the arch specific
early_init_dt_alloc_memory_arch() functions.
- Enable running the DT unittests on UML
- Use SPDX license tags on DT files
- Fix early FDT kconfig ifdef logic
- Clean-up unittest Makefile
- Fix function comment for of_irq_parse_raw
- Add missing documentation for linux,initrd-{start,end} properties
- Clean-up of binding examples using uppercase hex
- Add trivial devices W83773G and Infineon TLV493D-A1B6
- Add missing STM32 SoC bindings
- Various small binding doc fixes
* tag 'devicetree-for-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (23 commits)
xtensa: remove arch specific early DT functions
x86: remove arch specific early_init_dt_alloc_memory_arch
nios2: remove arch specific early_init_dt_alloc_memory_arch
mips: remove arch specific early_init_dt_alloc_memory_arch
metag: remove arch specific early DT functions
cris: remove arch specific early DT functions
libfdt: remove unnecessary include directive from <linux/libfdt.h>
of: unittest: refactor Makefile
of/fdt: use memblock_virt_alloc for early alloc
of: Use SPDX license tag for DT files
of/fdt: Fix #ifdef dependency of early flattree declarations
dt-bindings: h8300 clocksource: correct spelling of pulse
dt-bindings: imx6q-pcie: Add required property for i.MX6SX
mmc: Don't reference Linux-specific OF_GPIO_ACTIVE_LOW flag in DT binding
dt-bindings: Use lower case hex in unit-addresses
dt-bindings: display: panel: Fix compatible string for Toshiba LT089AC29000
dt-bindings: Add Infineon TLV493D-A1B6
dt-bindings: mailbox: ti,message-manager: Fix interrupt name error
dt-bindings: chosen: Document linux,initrd-{start,end}
dt-bindings: arm: document supported STM32 SoC family
...
Pull input layer updates from Dmitry Torokhov:
- evdev interface has been adjusted to extend the life of timestamps on
32 bit systems to the year of 2108
- Synaptics RMI4 driver's PS/2 guest handling ha beed updated to
improve chances of detecting trackpoints on the pass-through port
- mms114 touchcsreen controller driver has been updated to support
generic device properties and work with mms152 cntrollers
- Goodix driver now supports generic touchscreen properties
- couple of drivers for AVR32 architecture are gone as the architecture
support has been removed from the kernel
- gpio-tilt driver has been removed as there are no mainline users and
the driver itself is using legacy APIs and relies on platform data
- MODULE_LINECSE/MODULE_VERSION cleanups
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (45 commits)
Input: goodix - use generic touchscreen_properties
Input: mms114 - fix typo in definition
Input: mms114 - use BIT() macro instead of explicit shifting
Input: mms114 - replace mdelay with msleep
Input: mms114 - add support for mms152
Input: mms114 - drop platform data and use generic APIs
Input: mms114 - mark as direct input device
Input: mms114 - do not clobber interrupt trigger
Input: edt-ft5x06 - fix error handling for factory mode on non-M06
Input: stmfts - set IRQ_NOAUTOEN to the irq flag
Input: auo-pixcir-ts - delete an unnecessary return statement
Input: auo-pixcir-ts - remove custom log for a failed memory allocation
Input: da9052_tsi - remove unused mutex
Input: docs - use PROPERTY_ENTRY_U32() directly
Input: synaptics-rmi4 - log when we create a guest serio port
Input: synaptics-rmi4 - unmask F03 interrupts when port is opened
Input: synaptics-rmi4 - do not delete interrupt memory too early
Input: ad7877 - use managed resource allocations
Input: stmfts,s6sy671 - add SPDX identifier
Input: remove atmel-wm97xx touchscreen driver
...
MMS152 has no configuration registers, but the packet format used in
interrupts is identical to mms114.
Signed-off-by: Simon Shields <simon@lineageos.org>
Reviewed-by: Andi Shyti <andi.shyti@samsung.com>
Tested-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The MMS114 platform data has no in-tree users, so drop it.
Switch to using the standard touchscreen properties via
touchscreen_parse_properties(), and move the old DT parsing code
to use device_property_*() APIs.
Finally, use touchscreen_report_pos to report x/y coordinates
and drop the custom x/y inversion code.
Signed-off-by: Simon Shields <simon@lineageos.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Andi Shyti <andi.shyti@samsung.com>
Tested-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
On some x86 tablets with a silead touchscreen the windows logo on the
front is a capacitive home button. Touching this button results in a touch
with bits 12-15 of the Y coordinates set, while normally only the lower 12
are used.
Detect this and report a KEY_LEFTMETA press when this happens. Note for
now we only respond to the Y coordinate bits 12-15 containing 0x01, on some
tablets *without* a capacative button I've noticed these bits containing
0x04 when crossing the edges of the screen.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
DT unit addresses should be lower case hex. Fix all the
binding examples.
Converted with the following command from Krzysztof Kozlowski:
sed -e 's/@\([a-fA-F0-9_-]*\) {/@\L\1 {/' -i $(find Documentation/devicetree/bindings -name '*.txt')
Signed-off-by: Rob Herring <robh@kernel.org>
Improve the binding example by removing all the leading 0x to fix the
following dtc warnings:
Warning (unit_address_format): Node /XXX unit name should not have leading "0x"
Converted using the following command:
find Documentation/devicetree/bindings -name "*.txt" -exec sed -i -e 's/([^ ])\@0x([0-9a-f])/$1\@$2/g' {} +
This is a follow up to commit 48c926cd34
Signed-off-by: Mathieu Malaterre <malat@debian.org>
Signed-off-by: Rob Herring <robh@kernel.org>
- kbuild cleanups and improvements for dtbs
- Code clean-up of overlay code and fixing for some long standing memory
leak and race condition in applying overlays
- Improvements to DT memory usage making sysfs/kobjects optional and
skipping unflattening of disabled nodes. This is part of kernel
tinification efforts.
- Final piece of removing storing the full path for every DT node. The
prerequisite conversion of printk's to use device_node format
specifier happened in 4.14.
- Sync with current upstream dtc. This brings additional checks to dtb
compiling.
- Binding doc tree wide removal of leading 0s from examples
- RTC binding documentation adding missing devices and some
consolidation of duplicated bindings
- Vendor prefix documentation for nutsboard, Silicon Storage Technology,
shimafuji, Tecon Microprocessor Technologies, DH electronics GmbH,
Opal Kelly, and Next Thing
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Merge tag 'devicetree-for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull DeviceTree updates from Rob Herring:
"A bigger diffstat than usual with the kbuild changes and a tree wide
fix in the binding documentation.
Summary:
- kbuild cleanups and improvements for dtbs
- Code clean-up of overlay code and fixing for some long standing
memory leak and race condition in applying overlays
- Improvements to DT memory usage making sysfs/kobjects optional and
skipping unflattening of disabled nodes. This is part of kernel
tinification efforts.
- Final piece of removing storing the full path for every DT node.
The prerequisite conversion of printk's to use device_node format
specifier happened in 4.14.
- Sync with current upstream dtc. This brings additional checks to
dtb compiling.
- Binding doc tree wide removal of leading 0s from examples
- RTC binding documentation adding missing devices and some
consolidation of duplicated bindings
- Vendor prefix documentation for nutsboard, Silicon Storage
Technology, shimafuji, Tecon Microprocessor Technologies, DH
electronics GmbH, Opal Kelly, and Next Thing"
* tag 'devicetree-for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (55 commits)
dt-bindings: usb: add #phy-cells to usb-nop-xceiv
dt-bindings: Remove leading zeros from bindings notation
kbuild: handle dtb-y and CONFIG_OF_ALL_DTBS natively in Makefile.lib
MIPS: dts: remove bogus bcm96358nb4ser.dtb from dtb-y entry
kbuild: clean up *.dtb and *.dtb.S patterns from top-level Makefile
.gitignore: move *.dtb and *.dtb.S patterns to the top-level .gitignore
.gitignore: sort normal pattern rules alphabetically
dt-bindings: add vendor prefix for Next Thing Co.
scripts/dtc: Update to upstream version v1.4.5-6-gc1e55a5513e9
of: dynamic: fix memory leak related to properties of __of_node_dup
of: overlay: make pr_err() string unique
of: overlay: pr_err from return NOTIFY_OK to overlay apply/remove
of: overlay: remove unneeded check for NULL kbasename()
of: overlay: remove a dependency on device node full_name
of: overlay: simplify applying symbols from an overlay
of: overlay: avoid race condition between applying multiple overlays
of: overlay: loosen overly strict phandle clash check
of: overlay: expand check of whether overlay changeset can be removed
of: overlay: detect cases where device tree may become corrupt
of: overlay: minor restructuring
...
The S6SY761 touchscreen is a capicitive multi-touch controller
for mobile use. It's connected with i2c at the address 0x48.
This commit provides a basic version of the driver which can
handle only initialization, touch events and power states.
The controller is controlled by a firmware which, in the version
I currently have, doesn't provide all the possible
functionalities mentioned in the datasheet.
Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The HiDeep touchscreen device is a capacitive multi-touch controller
mainly for multi-touch supported devices use. It use I2C interface for
communication to IC and provide axis X, Y, Z locations for ten finger
touch through input event interface to userspace.
It support the Crimson and the Lime two type IC. They are different
the number of channel supported and FW size. But the working protocol
is same.
Signed-off-by: Anthony Kim <anthony.kim@hideep.com>
Acked-by: Rob Herring <robh+dt@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Improve the binding example by removing all the leading zeros to fix the
following dtc warnings:
Warning (unit_address_format): Node /XXX unit name should not have leading 0s
Converted using the following command:
perl -p -i -e 's/\@0+([0-9a-f])/\@$1/g' `find ./Documentation/devicetree/bindings "*.txt"`
Some unnecessary changes were manually fixed.
Signed-off-by: Marco Franchi <marco.franchi@nxp.com>
Signed-off-by: Rob Herring <robh@kernel.org>
The 3000 series have a new protocol which allows to report up to 5 points
in a single 66 byte frame. One must always read in 66 byte frames.
To support up to 10 points, two consecutive frames need to be read:
The first frame says how many points until sync.
The second frame must say zero points or both frames must be discarded.
To be able to work with the higher 400KHz I2C bus rate, one must
successfully send a special package prior _each_ read or the controller
will refuse to cooperate.
This is a minimal implementation based on egalax_i2c.c (which can be found
on the internet) and egalax_ts.c but without the vendor interface and no
power management support.
Signed-off-by: Ahmet Inan <inan@distec.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Support was added based on Goodix GitHub repo [1]. There are two major
differences between gt1151 and currently supported devices (gt9x):
* CONFIG_DATA register has 0x8050 address instead of 0x8047,
* config data checksum has 16-bit width instead of 8-bit.
Also update goodix_i2c_test() function, so it reads ID register (which
has the same address for all devices) instead of CONFIG_DATA (because
its address is known only after reading ID of the device).
[1] https://github.com/goodix/gt1x_driver_generic
Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pretty much any node can have a status property, so it doesn't need to
be in examples.
Converted with the following command and removed examples with SoC and
board specific splits:
git grep -l -E 'status.*=.*' Documentation/devicetree/ | xargs sed -i -E '/\sstatus.*=.*"(disabled|ok|okay)/d'
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
The stmfts (ST-Microelectronics FingerTip S) touchscreen device is a
capacitive multi-touch controller mainly for mobile use. It's connected
through i2c bus at the address 0x49 and it interfaces with userspace
through input event interface.
At the current state it provides a touchscreen multitouch functionality up
to 10 fingers. Each finger is enumerated with a distinctive id (from 0 to
9).
If enabled the device can support single "touch" hovering, by providing
three coordinates, x, y and distance.
It is possible to select the touchkey functionality which provides a basic
two keys interface for "home" and "back" menu, typical in mobile phones.
Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull input layer fixes from Dmitry Torokhov:
"Just a few fixups to a couple of drivers"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: elan_i2c - ignore signals when finishing updating firmware
Input: elan_i2c - clear INT before resetting controller
Input: atmel_mxt_ts - add T100 as a readable object
Input: edt-ft5x06 - increase allowed data range for threshold parameter
The datasheet and application note does not mention an allowed range for
the M09_REGISTER_THRESHOLD parameter. One of our customers needs to set
lower values than 20 and they seem to work just fine on EDT EP0xx0M09 with
T5x06 touch.
So, lacking a known lower limit, we increase the range for thresholds,
and set the lower limit to 0. The documentation is updated accordingly.
Signed-off-by: Schoefegger Stefan <stefan.schoefegger@ginzinger.com>
Signed-off-by: Manfred Schlaegl <manfred.schlaegl@ginzinger.com>
Signed-off-by: Martin Kepplinger <martin.kepplinger@ginzinger.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull input subsystem updates from Dmitry Torokhov:
- a big update from Mauro converting input documentation to ReST format
- Synaptics PS/2 is now aware of SMBus companion devices, which means
that we can now use native RMI4 protocol to handle touchpads, instead
of relying on legacy PS/2 mode.
- we removed support from BMA180 accelerometer from input devices as it
is now handled properly by IIO
- update to TSC2007 to corretcly report pressure
- other miscellaneous driver fixes.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (152 commits)
Input: ar1021_i2c - use BIT to check for a bit
Input: twl4030-pwrbutton - use input_set_capability() helper
Input: twl4030-pwrbutton - use correct device for irq request
Input: ar1021_i2c - enable touch mode during open
Input: add uinput documentation
dt-bindings: input: add bindings document for ar1021_i2c driver
dt-bindings: input: rotary-encoder: fix typo
Input: xen-kbdfront - add module parameter for setting resolution
ARM: pxa/raumfeld: fix compile error in rotary controller resources
Input: xpad - do not suggest writing to Dominic
Input: xpad - don't use literal blocks inside footnotes
Input: xpad - note that usb/devices is now at /sys/kernel/debug/
Input: docs - freshen up introduction
Input: docs - split input docs into kernel- and user-facing
Input: docs - note that MT-A protocol is obsolete
Input: docs - update joystick documentation a bit
Input: docs - remove disclaimer/GPL notice
Input: fix "Game console" heading level in joystick documentation
Input: rotary-encoder - remove references to platform data from docs
Input: move documentation for Amiga CD32
...
This patch removes the sun4i touchscreen controller binding
documentation since it has been merged with the sun4i GPADC binding
documentation.
Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Add a simple binding document describing the supported devices and the
I2C bus address.
Signed-off-by: Martin Kepplinger <martin.kepplinger@ginzinger.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The driver contains compatible strings for different models, but the DT
binding doc only lists one of them. Add the remaining to the document.
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This moves device tree bindings for ADS7846 together with the other
touchscreen bindings.
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Up until now only platforms using legacy platform data were able to switch
AUX/VBAT/GPIO pin in GPIO mode and use it as regular GPIO line. Let's
allow platforms using generic device properties to do the same.
Reviewed-by: Michael Hennerich <michael.hennerich@analog.com>
Tested-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This is a basic driver for the Zeitec ZET6223 I2C touchscreen
controllers. The driver does not support firmware loading, which is not
required for all tablets which contain this chip.
Signed-off-by: Jelle van der Waa <jelle@vdwaa.nl>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Make the avarage-samples property a general touchscreen property
rather than imx6ul device specific.
Signed-off-by: Guy Shapiro <guy.shapiro@mobi-wize.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The i.MX6UL internal touchscreen controller contains an option to
average upon samples. This feature reduces noise from the produced
touch locations.
This patch adds sample averaging support to the imx6ul_tsc device
driver.
Signed-off-by: Guy Shapiro <guy.shapiro@mobi-wize.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
On some tablets the touchscreen controller is powered by separate
regulators, add support for this.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Merge tag 'v4.8' into next
Sync up with mainline to bring in I2C host notify changes and other
updates.
This adds a driver for the Elan eKTF2127 touchscreen controller,
which speaks an i2c protocol which is distinctly different from
the already supported eKTH controllers.
Signed-off-by: Michel Verlaan <michel.verl@gmail.com>
Signed-off-by: Siebren Vroegindeweij <siebren.vroegindeweij@hotmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull input updates from Dmitry Torokhov:
"Just a fix up for the firmware handling to the Silead driver (which is
a new driver in this release)"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: silead_gsl1680 - use "silead/" prefix for firmware loading
Input: silead_gsl1680 - document firmware-name, fix implementation
The driver has supported touchscreen-fw-name to specify the firmware to
load since it has been merged, but this was omitted from the dt-binding
documentation.
During review of adding touchscreen-fw-name to the binding documentation
it was brought up that there is a standard property name called
"firmware-name" for this, which should be used.
Since there are no users of touchscreen-fw-name yet, this commit
adds documentation of "firmware-name" to the dt-binding documentation
and switches the driver over to use this.
This commit also makes the driver add a "silead/" prefix to the
firmware name from dt before calling request_firmware. That the
firmware files are stored under /lib/firmware/silead under Linux
is an implementation detail and does not belong in devicetree.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The new(ish) ft6236 simply re-implements the M09 protocol of the
(much) older edt-ft5x06.c driver.
This commit removes this duplicate driver and adds the i2c ids and
dt compatible string to the edt-ft5x06.c driver to keep compatibility.
This commit also adds the standard touchscreen properties as optional
properties to the edt,ft5x06 binding, these were documented in the
focaltech,ft6236 bindingi, but were missing from the edt,ft5x06 doc.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull more input updates from Dmitry Torokhov:
"Two new drivers for touchscreen controllers:
- Silead touchscreen controllers
- SiS 9200 family touchscreen controllers
and a few driver fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: silead - remove some dead code
Input: sis-i2c - select CONFIG_CRC_ITU_T
Input: add driver for SiS 9200 family I2C touchscreen controllers
Input: ili210x - fix permissions on "calibrate" attribute
Input: elan_i2c - properly wake up touchpad on ASUS laptops
Input: add driver for Silead touchscreens
Input: elantech - fix debug dump of the current packet
Input: rotary_encoder - support binary encoding of states
Input: xpad - power off wireless 360 controllers on suspend
Input: i8042 - break load dependency between atkbd/psmouse and i8042
Input: synaptics-rmi4 - do not check for NULL when calling of_node_put()
Input: cros_ec_keyb - cleanup use of dev
This is a driver for SiS 9200 family touchscreen controllers using I2C bus.
Signed-off-by: Mika Penttilä <mika.penttila@nextfour.com>
Acked-by: Tammy Tseng <tammy_tseng@sis.com>
Acked-by: Yuger Yu <yuger_yu@sis.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This driver adds support for Silead touchscreens. It has been tested
with GSL1680 and GSL3680 touch panels.
It supports ACPI and device tree enumeration. Screen resolution,
the maximum number of fingers supported and firmware name are
configurable.
Signed-off-by: Robert Dolca <robert.dolca@intel.com>
Signed-off-by: Daniel Jansen <djaniboe@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
- Rewrite of the unflattening code to avoid recursion and lessen the
stack usage.
- Rewrite of the phandle args parsing code to get rid of the fixed args
size. This is needed for IOMMU code.
- Sync to latest dtc which adds more dts style checking. These warnings
are enabled with "W=1" compiles.
- Tegra documentation updates related to the above warnings.
- A bunch of spelling and other doc fixes.
- Various vendor prefix additions.
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Merge tag 'devicetree-for-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree updates from Rob Herring:
- Rewrite of the unflattening code to avoid recursion and lessen the
stack usage.
- Rewrite of the phandle args parsing code to get rid of the fixed args
size. This is needed for IOMMU code.
- Sync to latest dtc which adds more dts style checking. These
warnings are enabled with "W=1" compiles.
- Tegra documentation updates related to the above warnings.
- A bunch of spelling and other doc fixes.
- Various vendor prefix additions.
* tag 'devicetree-for-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (52 commits)
devicetree: Add Creative Technology vendor id
gpio: dt-bindings: add ibm,ppc4xx-gpio binding
of/unittest: Remove unnecessary module.h header inclusion
drivers/of: Fix build warning in populate_node()
drivers/of: Fix depth when unflattening devicetree
of: dynamic: changeset prop-update revert fix
drivers/of: Export of_detach_node()
drivers/of: Return allocated memory from of_fdt_unflatten_tree()
drivers/of: Specify parent node in of_fdt_unflatten_tree()
drivers/of: Rename unflatten_dt_node()
drivers/of: Avoid recursively calling unflatten_dt_node()
drivers/of: Split unflatten_dt_node()
of: include errno.h in of_graph.h
of: document refcount incrementation of of_get_cpu_node()
Documentation: dt: soc: fix spelling mistakes
Documentation: dt: power: fix spelling mistake
Documentation: dt: pinctrl: fix spelling mistake
Documentation: dt: opp: fix spelling mistake
Documentation: dt: net: fix spelling mistakes
Documentation: dt: mtd: fix spelling mistake
...
In Cygnus SOC touch screen controller registers are shared with ADC and
flex timer. Using readl/writel could lead to race condition. So touch
screen driver is enhanced to support register access using syscon framework
API's to take care of mutually exclusive access.
Signed-off-by: Raveendra Padasalagi <raveendra.padasalagi@broadcom.com>
Reviewed-by: Ray Jui <ray.jui@broadcom.com>
Reviewed-by: Scott Branden <scott.branden@broadcom.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
- 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
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Merge tag 'mfd-for-linus-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
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
...
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 <aduggan@synaptics.com>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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 <stefan@agner.ch>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This is the touchscreen conversion queue binding documentation. It uses
the shared imx25 ADC.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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 <oreste.salerno@tomtom.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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 <merker@debian.org>
Tested-by: Bastien Nocera <hadess@hadess.net>
Tested-by: Irina Tirdea <irina.tirdea@intel.com> (with ACPI DSD properties)
Tested-by: Aleksei Mamlin <mamlinav@gmail.com> (with device-tree properties)
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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 <octavian.purdila@intel.com>
Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Bastien Nocera <hadess@hadess.net>
Tested-by: Bastien Nocera <hadess@hadess.net>
Tested-by: Aleksei Mamlin <mamlinav@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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 <damien.riegel@savoirfairelinux.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
On some devices the wake and enable pins of the pixcir touchscreen
controller are connected to gpios and these must be controlled by the
driver for the device to operate properly.
Signed-off-by: Sander Vermin <sander@vermin.nl>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This adds support for the i2c based tsc2004 touchscreen controller.
Signed-off-by: Michael Welling <mwelling@ieee.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
FT5506 is essentially the same as other FT5x06 devices other than
supporting 10 support points.
Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This adds support for the FT6x06 and the FT6x36 family of capacitive touch
panel controllers, in particular the FT6236.
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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>
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>
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>
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>
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>
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Merge tag 'v4.2-rc3' into next
Sync up with Linux 4.2-rc3 to bring in infrastructure (OF) pieces.
The controller has a RESET pin which is usually controlled over
a GPIO line. If such a GPIO is provided, perform a RESET
during probe.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Here's the big, really big, staging tree patches for 4.2-rc1.
Loads of stuff in here, almost all just coding style fixes / churn, and
a few new drivers as well, one of which I just disabled from the build a
few minutes ago due to way too many build warnings.
Other than the one "disable this driver" patch, all of these have been
in linux-next for quite a while with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver updates from Greg KH:
"Here's the big, really big, staging tree patches for 4.2-rc1.
Loads of stuff in here, almost all just coding style fixes / churn,
and a few new drivers as well, one of which I just disabled from the
build a few minutes ago due to way too many build warnings.
Other than the one "disable this driver" patch, all of these have been
in linux-next for quite a while with no reported issues"
* tag 'staging-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1163 commits)
staging: wilc1000: disable driver due to build warnings
Staging: rts5208: fix CHANGE_LINK_STATE value
Staging: sm750fb: ddk750_swi2c.c: Insert spaces before parenthesis
Staging: sm750fb: ddk750_swi2c.c: Place braces on correct lines
Staging: sm750fb: ddk750_swi2c.c: Insert spaces around operators
Staging: sm750fb: ddk750_swi2c.c: Replace spaces with tabs
Staging: sm750fb: ddk750_swi2c.h: Shorten lines to under 80 characters
Staging: sm750fb: ddk750_swi2c.h: Replace spaces with tabs
Staging: sm750fb: modedb.h: Shorten lines to under 80 characters
Staging: sm750fb: modedb.h: Replace spaces with tabs
staging: comedi: addi_apci_3120: rename 'this_board' variables
staging: comedi: addi_apci_1516: rename 'this_board' variables
staging: comedi: ni_atmio: cleanup ni_getboardtype()
staging: comedi: vmk80xx: sanity check context used to get the boardinfo
staging: comedi: vmk80xx: rename 'boardinfo' variables
staging: comedi: dt3000: rename 'this_board' variables
staging: comedi: adv_pci_dio: rename 'this_board' variables
staging: comedi: cb_pcidas64: rename 'thisboard' variables
staging: comedi: cb_pcidas: rename 'thisboard' variables
staging: comedi: me4000: rename 'thisboard' variables
...
Fix dts to match what the Linux kernel expects. This works around
touchscreen problems in 4.1 linux on Nokia n900.
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Add optional DT properties to set open delay, sample delay and number
of averages per sample for each adc step. Open delay, sample delay
and averaging are some of the parameters that affect the sampling rate
and accuracy of the sample. Making these parameters configurable via
DT will help in balancing speed vs accuracy.
Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
The ChipOne icn8318 is an i2c capacitive touchscreen controller typically
used in cheap android tablets, this commit adds a driver for it.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
On devices with a native portrait screen a landscape touchscreen /
digitizer may be used, this happens e.g. on ebook readers. In this case the
X and Y axis of the touchscreen are swapped compared to the screen.
Add a touchscreen-swapped-x-y property which drivers can use to see if they
need to swap the axis to make the touchscreen coordinates match the screen
coordinates.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add initial version of the Broadcom touchscreen driver.
Reviewed-by: Ray Jui <rjui@broadcom.com>
Reviewed-by: Scott Branden <sbranden@broadcom.com>
Tested-by: Scott Branden <sbranden@broadcom.com>
Signed-off-by: Jonathan Richardson <jonathar@broadcom.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit introduces two new optional device-tree properties:
"tp-sensitive-adjust": adjust sensitivity of pen down detection
"filter-type": select median and averaging filter
The previous fixed defaults, didn't work well for the Olimex
A13-LCD10TS (I have).
Signed-off-by: Jens Thiele <karme@karme.de>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Testing has revealed that the temperature in the rtp controller of the A10
(sun4i) SoC has a different curve then on the A13 (sun5i) and later models.
Add a new sun5i-a13-ts compatible to differentiate the newer models and
set the curve based on the compatible string.
The new curve is still not ideal on all A10-s, that seems to have to
do with there being a large spread between different A10-s out there,
the new curve us based on callibration results on 4 completely different
models:
raw min raw max temp min temp max stepsize offset
Tong Zhang's hackberry 2402 2680 45.0 80.0 0.125 -255.3
Hansg's Cubieboard 2207 2300 36.0 45.0 0.096 -175.8
Olliver's lime 1 (*): 2258 2537 48.3 87.1 0.139 -265.7
Olliver's lime 2 (*): 2222 2486 46.7 91.7 0.170 -331.0
*) from: http://linux-sunxi.org/Temperature_Calibration
Average all 4: 0.133 -257.0
Average without outliers (middle 2): 0.132 -261.0
Since it is better to slightly overreport the temperature this patch uses
the average of all 4 as curve.
This fixes the temperature reported on the A10 being much higher then
expected.
Reported-by: Tong Zhang <lovewilliam@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This change adds device tree support and binding information for Goodix
GT9xx series touchscreen controller. It also adds support for 5-finger
chips, like GT911 and GT912, which can be found on ARM tablets, such as
Wexler TAB7200 and MSI Primo73.
Datasheets can be found here:
https://drive.google.com/folderview?id=0BxCVOQS3ZymGfmJyY2RKbE5XbVlKNlktVTlwV0lxNEdxd2dzeWZER094cmJPVnMxN1F0Yzg&usp=sharing
Signed-off-by: Aleksei Mamlin <mamlinav@gmail.com>
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This patch reads charge delay from tsc DT node and writes to
REG_CHARGEDELAY register. If the charge delay is not specified in DT then
default value of 0x400(CHARGEDLY_OPENDLY) is used.
Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The Allwinner A31 SoC (sun6i) has the same resistive touchpanel controller
as on other sunxi platforms. The only difference between the variants is
the control bits for enabling operations are left-shifted by 1 on the A31.
Also update the comment for the original temperature sensor with
information from Allwinner.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The touchscreen controller has a temperature sensor embedded in the SoC,
which already has hwmon support in the driver.
Add DT thermal zone support so we can use it with cpufreq for thermal
throttling.
This also adds a comment stating that we do not know the actual formula
for calculating the temperature.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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>
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>
This adds DT support to the tsc2005 touchscreen driver. It also adds
regulator support to the driver if booted via DT.
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add common DT binding documentation for touchscreen devices and
implement input_parse_touchscreen_of_params, which parses the common
properties and configures the input device accordingly.
The method currently does not interpret the axis inversion properties,
since there is no matching flag in the generic linux input device.
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The sun4i resisitive touchscreen controller also comes with a built-in
temperature sensor. This commit adds support for it.
This commit also introduces a new "ts-attached" device-tree property,
when this is not set, the input part of the driver won't register. This way
the internal temperature sensor can be used to measure the SoC temperature
independent of there actually being a touchscreen attached to the controller.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Note the sun4i-ts controller is capable of detecting a second touch, but
when a second touch is present then the accuracy becomes so bad the
reported touch location is not useable.
The original android driver contains some complicated heuristics using the
aprox. distance between the 2 touches to see if the user is making a pinch
open / close movement, and then reports emulated multi-touch events around
the last touch coordinate (as the dual-touch coordinates are worthless).
These kinds of heuristics are just asking for trouble (and don't belong in
the kernel). So this driver offers straight forward, reliable single touch
functionality only.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This makes the zforce driver usable on devicetree-based platforms too.
Signed-off-by: Heiko Stuebner <heiko.stuebner@bqreaders.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
There was a spelling mistake on TSC/ADC binding where "coordinate" was
spelled as "coordiante".
We can't simply fix the error due to DT being an ABI, the approach taken
was to first use correct spelling and if that fails, fall back to
miss-spelled version.
It's unfortunate that has creeped into the tree.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Merge tag 'v3.11' into next
Merge with mainline to bring in sync changes to cyttsp4 driver.
This patch adds DT support to touch driver. It also provides a binding
document which is used by the MFD and IIO part of the device.
This patch also renames steps_to_configure to coordinate_readouts
because the original name misleads the purpose of the variable.
Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
Signed-off-by: Patil, Rachna <rachna@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We add the possibility to hand over a GPIO number for the reset pin.
This way we can remove existing board code that takes care of it and
group this information properly in the platform data or in the device
tree configuration.
Signed-off-by: Bastian Hecht <hechtb+renesas@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Merge tag 'v3.9-rc3' into next
Merge with mainline to bring in module_platform_driver_probe() and
devm_ioremap_resource().
Add the necessary code to create the needed platformdata from devicetree
informations.
The interrupt mode of the chip is not set via devicetree, as it is not
a property of the hardware but instead only a preferred type of operation.
This should probably be made settable via configfs in the future.
The option set as default is the mode the datasheet mentions as default.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull second round of input updates from Dmitry Torokhov:
"As usual, there are a couple of new drivers, input core now supports
managed input devices (devres), a slew of drivers now have device tree
support and a bunch of fixes and cleanups."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (71 commits)
Input: walkera0701 - fix crash on startup
Input: matrix-keymap - provide a proper module license
Input: gpio_keys_polled - switch to using gpio_request_one()
Input: gpio_keys - switch to using gpio_request_one()
Input: wacom - fix touch support for Bamboo Fun CTH-461
Input: xpad - add a few new VID/PID combinations
Input: xpad - minor formatting fixes
Input: gpio-keys-polled - honor 'autorepeat' setting in platform data
Input: tca8418-keypad - switch to using managed resources
Input: tca8418_keypad - increase severity of failures in probe()
Input: tca8418_keypad - move device ID tables closer to where they are used
Input: tca8418_keypad - use dev_get_platdata() to retrieve platform data
Input: tca8418_keypad - use a temporary variable for parent device
Input: tca8418_keypad - add support for shared interrupt
Input: tca8418_keypad - add support for device tree bindings
Input: remove Compaq iPAQ H3600 (Bitsy) touchscreen driver
Input: bu21013_ts - add support for Device Tree booting
Input: bu21013_ts - move GPIO init and exit functions into the driver
Input: bu21013_ts - request regulator that actually exists
ARM: ux500: Strip out duplicate touch screen platform information
...
This patch allows the STMPE Touchscreen driver to be successfully probed and
initialised when Device Tree support is enabled. Bindings are mentioned in
Documentation too.
Signed-off-by: Vipul Kumar Samar <vipulkumar.samar@st.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Merge tag 'v3.7-rc4' into next to sync up Wacom bits
Linux 3.7-rc4
From Lee Jones:
* 'ste-dt-for-next' of git://git.linaro.org/people/ljones/linux-3.0-ux500: (31 commits)
ARM: ux500: Convert DT_MACHINE_START to use SMP operations
ARM: ux500: CONFIG: Enable GPIO Regulators
ARM: ux500: Change the type of interrupt to something compatible
ARM: ux500: Add node for the MMC GPIO regulator
ARM: ux500: List DT compatibility using platform names rather than by board
ARM: ux500: Remove duplicate DT_MACHINE_START - make u8500 for generic
ARM: ux500: Rename references to the ccu9540 dev board accordingly
ARM: ux500: Enable all MMC devices on the u9540 when booting with DT
ARM: ux500: Enable SDI4 port on the u9540 when booting with Device Tree
ARM: ux500: Add UART support to the u9540 Device Tree
ARM: ux500: Add support for ST-Ericsson's u9540 SoC
ARM: ux500: Add skeleton DTS file for the u9540
ARM: ux500: Remove unused board compatible string
ARM: ux500: Supply the STMPE keypad Device Tree node to the STUIB DT
ARM: ux500: Apply a Device Tree node for the STMPE MFD
ARM: ux500: Stop informing the regulator subsystem that we have full constraints
ARM: ux500: Add all bu21013 touch screen components to supported Device Trees
ARM: ux500: Stop calling the UIB init function when using Device Tree
ARM: ux500: Create a new Device Tree include file for boards supporting STUIBs
Documentation: Detail permitted DT properties for the BU21013 Touch Screen
...
Here we apply required documentation for the Rohm BU21013 Touch
Screen driver which describe available properties and how to use
them.
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: linux-input@vger.kernel.org
Cc: devicetree-discuss@lists.ozlabs.org
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The irq_to_gpio() is old, most platforms use GENERIC_GPIO framework
and don't support this API anymore.
The i.MX6q sabrelite platform equips an egalax touchscreen controller,
and this platform already transfered to GENERIC_GPIO framework, to
support this driver, we use a more generic way to get gpio.
Add a return value checking for waking up the controller in the probe
function, this guarantee only a workable device can pass init.
[dmitry.torokhov@gmail.com: Make driver depend on CONFIG_OF as it is
now required.]
Acked-by Zhang Jiejing <jiejing.zhang@freescale.com>
Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Hui Wang <jason77.wang@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
During the device tree integration of the various LPC32xx drivers,
we agreed on using non-wildcard "compatible" strings. This change
switches lpc32xx_ts touchscreen driver to use "nxp,lpc3220-tsc".
Signed-off-by: Roland Stigge <stigge@antcom.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This change implements device tree support for the LPC32xx SoC's touchscreen
controller.
Signed-off-by: Roland Stigge <stigge@antcom.de>
Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
