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path: root/drivers/input/touchscreen/pixcir_i2c_ts.c (follow)
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2019-06-05treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282Thomas Gleixner1-9/+1
Based on 1 normalized pattern(s): this software is licensed under the terms of the gnu general public license version 2 as published by the free software foundation and may be copied distributed and modified under those terms this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 285 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141900.642774971@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-21Input: touchscreen - use local variables consistentlyGuenter Roeck1-2/+2
If a function declares a variable to access a structure element, use it consistently. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-08-22Input: pixcir_i2c_ts - remove a useless blank lineLABBE Corentin1-1/+0
This patch fix the following checkpatch report: Blank lines aren't necessary after an open brace Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-08-22Input: pixcir_i2c_ts - remove text about writing to Free Software FoundationLABBE Corentin1-4/+0
Checkpatch complains about the text suggesting writing to Free Software Foundation for GPLv2 license copy. This patch remove that text. Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-08-22Input: pixcir_i2c_ts - simplify code with of_device_get_match_dataLABBE Corentin1-7/+1
The usage of of_device_get_match_data reduce the code size a bit. Furthermore, it is better to use a standard function for getting the match data. Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-07-15Input: pixcir_ts - add support for axis inversion / swappingHans de Goede1-33/+20
Add support for axis inversion / swapping using the new touchscreen_parse_properties() and touchscreen_set_mt_pos() functionality. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-07-15Input: of_touchscreen - add support for inverted / swapped axesHans de Goede1-1/+1
Extend touchscreen_parse_properties() with support for the touchscreen-inverted-x/y and touchscreen-swapped-x-y properties and add touchscreen_set_mt_pos() and touchscreen_report_pos() helper functions for storing coordinates into a input_mt_pos struct, or directly reporting them, taking these properties into account. This commit also modifies the existing callers of touchscreen_parse_properties() to pass in NULL for the new third argument, keeping the existing behavior. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-04Input: pixcir_i2c - add support for wake and enable gpiosSander Vermin1-0/+41
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>
2015-10-13Input: pixcir_i2c_ts - remove wakeirq related code from pixcir driverVignesh R1-12/+0
With commit 3fffd1283927 ("i2c: allow specifying separate wakeup interrupt in device tree") wakeirq is managed by i2c-core, so remove wakeirq related code from pixcir_i2c_ts driver. Signed-off-by: Vignesh R <vigneshr@ti.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-07-20Merge tag 'v4.2-rc3' into nextDmitry Torokhov1-1/+1
Sync up with Linux 4.2-rc3 to bring in infrastructure (OF) pieces.
2015-07-17Input: drop owner assignment from i2c_driverKrzysztof Kozlowski1-1/+0
i2c_driver does not need to set an owner because i2c_register_driver() will set it. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-07-11Input: pixcir_i2c_ts - use standard OF touchscreen parsing codeDmitry Torokhov1-51/+44
Let's switch to using standard touchscreen device properties parsing module instead of doing it by hand in the driver. Acked-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-07-11Input: pixcir_i2c_ts - simplify input device initializationDmitry Torokhov1-5/+0
input_mt_init_slots() will perform necessary settings for performing multi-touch to single-touch emulation, we do not need to do that ourselves. Acked-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-07-11Input: pixcir_i2c_ts - add RESET gpioRoger Quadros1-0/+22
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>
2015-07-11Input: pixcir_i2c_ts - allow using with GPIO expandersDmitry Torokhov1-1/+1
We are using threaded interrupt handler and thus are allowed to sleep. Let's switch over to gpiod_get_value_cansleep() so that we do not get ugly warnings in case GPIO controller might sleep when accessing GPIO. Acked-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-07-11Input: pixcir_i2c_ts - switch the device over to gpiodDmitry Torokhov1-17/+9
This allows uniform parsing on legacy, DT and ACPI systems. Acked-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-07-11Input: pixcir_i2c_ts - move platform dataDmitry Torokhov1-1/+1
Let's move driver's platform data definitions from include/linux/input/ into include/linux/platform_data/ so that it stays with the rest of platform data definitions. Acked-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-06-16Input: pixcir_i2c_ts - fix receive errorFrodo Lai1-1/+1
The i2c_master_recv() uses readsize to receive data from i2c but compares to size of rdbuf which is always 27. This would cause problem when the max_fingers is not 5. Change the comparison value to readsize instead. Fixes: 36874c7e219 ("Input: pixcir_i2c_ts - support up to 5 fingers and hardware tracking IDs:) Cc: stable@vger.kernel.org Signed-off-by: Frodo Lai <frodo_lai@bcmcom.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-02-01Input: MT - add support for balanced slot assignmentHenrik Rydberg1-1/+1
Some devices are not fast enough to differentiate between a fast-moving contact and a new contact. This problem cannot be fully resolved because information is truly missing, but it is possible to safe-guard against obvious mistakes by restricting movement with a maximum displacement. The new problem formulation for dmax > 0 cannot benefit from the speedup for positive definite matrices, but since the convergence is faster, the result is about the same. For a handful of contacts, the latency difference is truly negligible. Suggested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Henrik Rydberg <rydberg@bitmath.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2014-11-02Input: touchscreen - use __maybe_unused instead of ifdef around suspend/resumeJingoo Han1-4/+2
Use __maybe_unused instead of ifdef guards around suspend/resume functions, in order to increase build coverage and fix build warnings. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2014-07-28Input: pixcir_i2c_ts - add device tree supportRoger Quadros1-0/+77
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>
2014-07-28Input: pixcir_i2c_ts - support up to 5 fingers and hardware tracking IDsRoger Quadros1-17/+57
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>
2014-07-28Input: pixcir_i2c_ts - use Type-B Multi-Touch protocolRoger Quadros1-31/+94
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>
2014-05-18Input: pixcir_i2c_ts - implement wakeup from suspendRoger Quadros1-4/+43
Improve the suspend and resume handlers to allow the device to wakeup the system from suspend. Signed-off-by: Roger Quadros <rogerq@ti.com> Acked-by: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2014-05-18Input: pixcir_i2c_ts - get rid of pdata->attb_read_val()Roger Quadros1-1/+15
Get rid of the attb_read_val() platform hook. Instead, read the ATTB gpio directly from the driver. Fail if valid ATTB gpio is not provided by patform data. Signed-off-by: Roger Quadros <rogerq@ti.com> Acked-by: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2014-05-18Input: pixcir_i2c_ts - initialize interrupt mode and power modeRoger Quadros1-8/+174
Introduce helper functions to configure power and interrupt registers. Default to IDLE mode on probe as device supports auto wakeup to ACVIE mode on detecting finger touch. Configure interrupt mode and polarity on start up. Power down on device closure or module removal. Signed-off-by: Roger Quadros <rogerq@ti.com> Acked-by: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2014-05-18Input: pixcir_i2c_ts - use devres managed resource allocationsRoger Quadros1-23/+15
Use devm_() and friends for allocating memory, input device and IRQ. Signed-off-by: Roger Quadros <rogerq@ti.com> Acked-by: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2013-12-06Input: use dev_get_platdata()Jingoo Han1-1/+2
Use the wrapper function for retrieving the platform data instead of accessing dev->platform_data directly. This is a cosmetic change to make the code simpler and enhance the readability. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Fugang Duan <B38611@freescale.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-11-24Input: remove use of __devexitBill Pemberton1-1/+1
CONFIG_HOTPLUG is going away as an option so __devexit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-11-24Input: remove use of __devinitBill Pemberton1-1/+1
CONFIG_HOTPLUG is going away as an option so __devinit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Javier Martinez Canillas <javier@dowhile0.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-11-24Input: remove use of __devexit_pBill Pemberton1-1/+1
CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-04Input: request threaded-only IRQs with IRQF_ONESHOTLars-Peter Clausen1-1/+1
Since commit 1c6c69525b ("genirq: Reject bogus threaded irq requests") threaded IRQs without a primary handler need to be requested with IRQF_ONESHOT, otherwise the request will fail. This patch adds the IRQF_ONESHOT to input drivers where it is missing. Not modified by this patch are those drivers where the requested IRQ will always be a nested IRQ (e.g. because it's part of an MFD), since for this special case IRQF_ONESHOT is not required to be specified when requesting the IRQ. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-03-16Input: synaptics_usb - switch to module_usb_driver()Dmitry Torokhov1-11/+1
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-12-30Input: add driver for pixcir i2c touchscreensJianchun Bian1-0/+239
This patch adds a driver for PIXCIR's I2C connected touchscreens. Signed-off-by: Jianchun <jcbian@pixcir.com.cn> Acked-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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