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path: root/drivers/input
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2015-03-08Input: synaptics - retrieve the extended capabilities in query $10Benjamin Tissoires
Newer Synaptics touchpads need to get information from the query $10. Retrieve it if available. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-08Input: synaptics - do not retrieve the board id on old firmwaresBenjamin Tissoires
The board id capability has been added in firmware 7.5. Cc: stable@vger.kernel.org Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-08Input: synaptics - handle spurious release of trackstick buttonsBenjamin Tissoires
The Fimware 8.1 has a bug in which the extra buttons are only sent when the ExtBit is 1. This should be fixed in a future FW update which should have a bump of the minor version. Cc: stable@vger.kernel.org Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-08Input: synaptics - fix middle button on Lenovo 2015 productsDmitry Torokhov
On the X1 Carbon 3rd gen (with a 2015 broadwell cpu), the physical middle button of the trackstick (attached to the touchpad serio device, of course) seems to get lost. Actually, the touchpads reports 3 extra buttons, which falls in the switch below to the '2' case. Let's handle the case of odd numbers also, so that the middle button finds its way back. Cc: stable@vger.kernel.org Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-08Input: synaptics - skip quirks when post-2013 dimensionsBenjamin Tissoires
Post-2013 Lenovo laptops provide correct min/max dimensions, which are different with the ones currently quirked. According to https://bugzilla.kernel.org/show_bug.cgi?id=91541 the following board ids are assigned in the post-2013 touchpads: t440p/t440s: LEN0036 -> 2964/2962 t540p: LEN0034 -> 2964 Using 2961 as the common minimum makes these 3 laptops OK. We may need to update those values later if other pnp_ids has a lower board_id. Cc: stable@vger.kernel.org Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-08Input: synaptics - support min/max board id in min_max_pnpid_tableDaniel Martin
Add a min/max range for board ids to the min/max coordinates quirk. This makes it possible to restrict quirks to specific models based upon their board id. The define ANY_BOARD_ID (0) serves as a wild card. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=91541 Cc: stable@vger.kernel.org Signed-off-by: Daniel Martin <daniel.martin@secunet.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-08Input: synaptics - remove obsolete min/max quirk for X240Daniel Martin
The firmware of the X240 (LEN0035, 2013/12) exposes the same values x [1232..5710], y [1156..4696] as the quirk applies. Cc: stable@vger.kernel.org Signed-off-by: Daniel Martin <consume.noise@gmail.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-08Input: synaptics - query min dimensions for fw v8.1Daniel Martin
Query the min dimensions even if the check SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 7 fails, but we know that the firmware version 8.1 is safe. With that we don't need quirks for post-2013 models anymore as they expose correct min and max dimensions. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=91541 Cc: stable@vger.kernel.org Signed-off-by: Daniel Martin <consume.noise@gmail.com> re-order the tests to check SYN_CAP_MIN_DIMENSIONS even on FW 8.1 Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-08Input: synaptics - log queried and quirked dimension valuesDaniel Martin
Logging the dimension values we queried and the values we use from a quirk to overwrite can be helpful for debugging. This partly relates to bug: https://bugzilla.kernel.org/show_bug.cgi?id=91541 Cc: stable@vger.kernel.org Signed-off-by: Daniel Martin <consume.noise@gmail.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-08Input: synaptics - split synaptics_resolution(), query firstDaniel Martin
Split the function synaptics_resolution() into synaptics_resolution() and synaptics_quirks(). synaptics_resolution() will be called before synaptics_quirks() to query dimensions and resolutions before overwriting them with quirks. Cc: stable@vger.kernel.org Signed-off-by: Daniel Martin <consume.noise@gmail.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-08Input: sun4i-ts - A10 (sun4i) has a different temperature curveHans de Goede
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>
2015-03-08Input: elan_i2c - remove duplicate repeat codeDuson Lin
Remove duplicate "repeat--" from function elan_initialize. Signed-off-by: Duson Lin <dusonlin@emc.com.tw> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-07Input: elan_i2c - return error code when resume failsDuson Lin
In order to better diagnose potential issues let's return error to the upper layers when resuming the device fails and also add a few diagnostic messages. Signed-off-by: Duson Lin <dusonlin@emc.com.tw> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-07Input: pwm-beeper - remove unneeded PWM_BEEPER_PM_OPS defineDmitry Torokhov
The device->pm pointer is always present so there is no need to do tricks with conditionally defining the pointer. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-07Input: psmouse - disable "palm detection" in the focaltech driverMathias Gottschlag
Apparently, the threshold for large contact area seems to be rather low on some devices, causing the touchpad to frequently freeze during normal usage. Because we do now know how we are supposed to use the value in question, this commit just drops the related code completely. Signed-off-by: Mathias Gottschlag <mgottschlag@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-07Input: psmouse - disable changing resolution/rate/scale for FocalTechMathias Gottschlag
These PS/2 commands make some touchpads stop responding, so this commit adds some dummy functions to replace the generic implementation. Because scale changes were not encapsulated in a method of struct psmouse yet, this commit adds a method set_scale to psmouse. Signed-off-by: Mathias Gottschlag <mgottschlag@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-07Input: psmouse - ensure that focaltech reports consistent coordinatesMathias Gottschlag
We don't know whether x_max or y_max really hold the maximum possible coordinates, and we don't know for sure whether we correctly interpret the coordinates sent by the touchpad, so we clamp the reported values to prevent confusion in userspace code. Signed-off-by: Mathias Gottschlag <mgottschlag@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-07Input: psmouse - remove hardcoded touchpad size from the focaltech driverMathias Gottschlag
The size has in most cases already been fetched from the touchpad, the hardcoded values should have been removed. Signed-off-by: Mathias Gottschlag <mgottschlag@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-06Input: add support for Semtech SX8654 I2C touchscreen controllerSébastien Szymanski
Signed-off-by: Sébastien Szymanski <sebastien.szymanski@armadeus.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-06Input: goodix - add device tree supportAleksei Mamlin
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>
2015-03-06Input: goodix - use max touch number from device configAleksei Mamlin
Use max number of touches from device config instead of hardcoding. Signed-off-by: Aleksei Mamlin <mamlinav@gmail.com> Tested-by: Bastien Nocera <hadess@hadess.net> Acked-by: Bastien Nocera <hadess@hadess.net> Tested-by: Antonio Ospite <ao2@ao2.it> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-06Input: synaptics - switch ForcePad detection to PNP IDsDmitry Torokhov
According to Synaptics devices with ForcePads use SYN300D and SYN3014 as PNP IDs, so let's switch from DMI-bases detection scheme to PNP-based one, which should be more reliable. Suggested-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-06Input: psmouse - when comparing PNP IDs ignore caseDmitry Torokhov
PNP IDs are supposed to be case-insensitive and so we should compare them as such. Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-06Input: driver for microcontroller keys on the iPaq h3xxxLinus Walleij
This adds a key input driver for the keys found on the h3xxx iPAQ series. Based on a driver from handhelds.org 2.6.21 kernel, written by Alessandro GARDICH. Signed-off-by: Alessandro GARDICH <gremlin@gremlin.it> Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-06Input: add haptic support for max77843Jaewon Kim
This patch adds support for haptic on max77843 MFD (Multi Function Device) with PMIC, MUIC, LED, CHARGER. This driver supports external pwm and LRA (Linear Resonant Actuator) motor. Signed-off-by: Jaewon Kim <jaewon02.kim@samsung.com> [Jim Davis <jim.epost@gmail.com>: should depend on REGULATOR not PWM] Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-04Input: tc3589x-keypad - set IRQF_ONESHOT flag to ensure IRQ requestValentin Rothberg
Since commit 1c6c69525b40eb76de8adf039409722015927dc3 ("genirq: Reject bogus threaded irq requests") threaded IRQs without a primary handler need to be requested with IRQF_ONESHOT, otherwise the request will fail. Currently, plat->irqtype is only set to IRQF_TRIGGER_FALLING. This patch sets the ONESHOT flag directly in request_threaded_irq() to enforce the flag without being affected by future changes to plat->irqtype. Generated by: scripts/coccinelle/misc/irqf_oneshot.cocci Signed-off-by: Valentin Rothberg <Valentin.Rothberg@lip6.fr> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-04Input: ALPS - fix memory leak when detection failsDmitry Torokhov
This fixes memory leak introduced by commit a09221e83e13e09a33109b9b037484eade901cea Acked-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-04gpio: add parameter to allow the use named gpiosOlliver Schinagl
The gpio binding document says that new code should always use named gpios. Patch 40b73183 added support to parse a list of gpios from child nodes, but does not make it possible to use named gpios. This patch adds the con_id property and implements it is done in gpiolib.c, where the old-style of using unnamed gpios still works. Signed-off-by: Olliver Schinagl <oliver@schinagl.nl> Acked-by: Bryan Wu <cooloney@gmail.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-03-02Input: add driver for Broadcom keypad controllerScott Branden
Broadcom Keypad controller is used to interface a SoC with a matrix-type keypad device. The keypad controller supports multiple row and column lines. A key can be placed at each intersection of a unique row and a unique column. The keypad controller can sense a key-press and key-release and report the event using an interrupt to the CPU. Reviewed-by: Ray Jui <rjui@broadcom.com> Signed-off-by: Scott Branden <sbranden@broadcom.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-02Input: sun4i-ts - add thermal driver dependencyArnd Bergmann
The sun4i-ts driver has had a dependency on the thermal code with the addition of the thermal zone sensor support, but this is not currently enforced in Kconfig, so with TOUCHSCREEN_SUN4I=y, THERMAL=m and THERMAL_OF=y we get drivers/built-in.o: In function `sun4i_ts_remove': :(.text+0x2376f4): undefined reference to `thermal_zone_of_sensor_unregister' drivers/built-in.o: In function `sun4i_ts_probe': :(.text+0x237a94): undefined reference to `thermal_zone_of_sensor_register' :(.text+0x237c00): undefined reference to `thermal_zone_of_sensor_unregister' We need the dependency on THERMAL in order to ensure that this driver becomes a loadable module if the thermal support itself is modular, while the dependency on THERMAL_OF is a runtime dependency and the driver will still build if it is missing. It is entirely possible to build sun4i-ts without THERMAL_OF just to use the hwmon sensors and/or touchscreen. Fixes: 223697107949 ("Input: sun4i-ts - add thermal zone sensor support") Signed-off-by: Arnd Bergmann <arnd@arndb.de> [wens@csie.org: Fix description and Kconfig dependencies] Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-02Input: cyapa - remove superfluous type check in cyapa_gen5_read_idac_data()Geert Uytterhoeven
drivers/input/mouse/cyapa_gen5.c: In function ‘cyapa_gen5_read_idac_data’: drivers/input/mouse/cyapa_gen5.c:1876: warning: ‘max_element_cnt’ may be used uninitialized in this function drivers/input/mouse/cyapa_gen5.c:1873: warning: ‘offset’ may be used uninitialized in this function If *data_size is non-zero, and idac_data_type contains an unknown type, max_element_cnt and offset will be uninitialized, and the loop will process non-existing data. However, this cannot happen (for now), as there's a test for unknown types at the top of cyapa_gen5_read_idac_data(). As no "if ... else if ..." is used in other places, remove the superfluous "if" to silence the compiler warning. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Dudley Du <dudl@cypress.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-02Input: cyapa - fix unaligned functions redefinition errorDudley Du
Use asm/unaligned.h instead of linux/unaligned/access_ok.h header file to fix compiling issues such as following while doing cross platform compiling: "include/linux/unaligned/access_ok.h:7:19: error: redefinition of 'get_unaligned_le16' ... include/linux/unaligned/le_struct.h:6:19: note: previous definition of 'get_unaligned_le16' was here". Reported-by: kbuild test robot <kbuild-all@01.org> Signed-off-by: Dudley Du <dudl@cypress.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-02[media] fixp-arith: replace sin/cos table by a better precision oneMauro Carvalho Chehab
The cos table used at fixp-arith.h has only 8 bits of precision. That causes problems if it is reused on other drivers. As some media drivers require a higher precision sin/cos implementation, replace the current implementation by one that will provide 32 bits precision. The values generated by the new implementation matches the 32 bit precision of glibc's sin for an angle measured in integer degrees. It also provides support for fractional angles via linear interpolation. On experimental calculus, when used a table with a 0.001 degree angle, the maximum error for sin is 0.000038, which is likely good enough for practical purposes. There are some logic there that seems to be specific to the usage inside ff-memless.c. Move those logic to there, as they're not needed elsewhere. Cc: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Signed-off-by: Prashant Laddha <prladdha@cisco.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-26mfd: cros_ec: Use fixed size arrays to transfer data with the ECJavier Martinez Canillas
The struct cros_ec_command will be used as an ioctl() argument for the API to control the ChromeOS EC from user-space. So the data structure has to be 64-bit safe to make it compatible between 32 and 64 avoiding the need for a compat ioctl interface. Since pointers are self-aligned to different byte boundaries, use fixed size arrays instead of pointers for transferring ingoing and outgoing data with the Embedded Controller. Also, re-arrange struct members by decreasing alignment requirements to reduce the needing padding size. Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Acked-by: Lee Jones <lee.jones@linaro.org> Tested-by: Gwendal Grignou <gwendal@chromium.org> Reviewed-by: Gwendal Grignou <gwendal@chromium.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2015-02-25Input: mma8450 - add parent deviceStefan Sauer
Add the parent device so that udev can show the full hierarchy. This avoids the device showing up under /devices/virtual/input instead of the i2c bus it is actually attached to. Signed-off-by: Stefan Sauer <ensonic@google.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-02-21Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull more input updates from Dmitry Torokhov: "The second round of updates for the input subsystem. Updates to ALPS an bfin_roraty drivers and a couple oother fixups" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: psmouse - use IS_ENABLED instead of homegrown code Input: bfin_rotary - introduce open and close methods Input: bfin_rotary - convert to use managed resources Input: bfin_rotary - use generic IO functions Input: bfin_rotary - move pin lists into into platform data Input: bfin_rotary - move platform header to linux/platform_data Input: bfin_rotary - mark suspend and resume code as __maybe_unused Input: bfin_rotary - fix potential oops in interrupt handler Input: ALPS - move v7 packet info to Documentation and v6 packet info Input: ALPS - fix confusing comment in protocol data Input: ALPS - do not mix trackstick and external PS/2 mouse data Input: ALPS - fix trackstick detection on some Dell Latitudes Input: ALPS - consolidate setting protocol parameters Input: ALPS - split protocol data from model info Input: ALPS - make Rushmore a separate protocol Input: ALPS - renumber protocol numbers Input: adi - remove an unnecessary check Input: pxa27x_keypad - remove an unneeded NULL check Input: soc_button_array - use "Windows" key for "Home"
2015-02-15Input: psmouse - use IS_ENABLED instead of homegrown codeDmitry Torokhov
Instead of having various protocols provide <protocol>_supported() functions, let's use IS_ENABLED() macro that works well in "if" statements. Acked-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-02-15Merge branch 'bfin_rotary' into nextDmitry Torokhov
Merge bfin_rotary driver changes from Sonic Zhang.
2015-02-15Input: bfin_rotary - introduce open and close methodsDmitry Torokhov
Introduce open and close methods for the input device to postpone enabling the device until it is needed. Acked-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-02-15Input: bfin_rotary - convert to use managed resourcesSonic Zhang
Use of managed resources simplifies error handling. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-02-15Input: bfin_rotary - use generic IO functionsSonic Zhang
Instead of using arch-specific accessors remap rotary register physical address into kernel space in probe and use standard readw and writew to access rotary MMRs. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-02-15Input: bfin_rotary - move pin lists into into platform dataSonic Zhang
Newer Blackfin boards use pinctrl API to manage pins and the legacy peripherial lists are not useful on them. Let's move pin lists into platform data so older boards can still use them and newer boards can use the modern API. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-02-15Input: bfin_rotary - move platform header to linux/platform_dataSonic Zhang
The platform data definition of the rotary driver should be generic for all architectures. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-02-15Input: bfin_rotary - mark suspend and resume code as __maybe_unusedDmitry Torokhov
Instead of using #ifdef to guard potentially unused suspend and resume code let's mark them as __maybe_unused so they still get discarded if they are not used but we do not get warning. This allows for better compile coverage. Acked-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-02-15Input: bfin_rotary - fix potential oops in interrupt handlerDmitry Torokhov
The interrupt handler in the driver tries to fetch driver data from platform device, unfortunately it is only set up after interrupt handler is registered. Since interrupt handler does not really need to access the platform device itself let's change it to get the driver data instance instead. Acked-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-02-15Input: ALPS - move v7 packet info to Documentation and v6 packet infoPali Rohár
This patch move all packet info from driver source code to documentation and adds info about v6 packet format (from driver source code). Signed-off-by: Pali Rohár <pali.rohar@gmail.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-02-15Input: ALPS - fix confusing comment in protocol dataDmitry Torokhov
The comment about suspicions entry 0x20, 0x02, 0x0e has over time drifted away and it become hard to figure out what it meant. Let's move it back so it is clear. Reported-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-02-15Input: ALPS - do not mix trackstick and external PS/2 mouse dataPali Rohár
Previously dev2 device was used for both external PS/2 mouse and internal trackstick device (if available). This change introduces dev3 device which is used for external PS/2 mouse data and dev2 is now used only for trackstick. In case that trackstick is not present dev2 is not created, so userspace does not see non existent device in system. Because laptops with ALPS devices often do not use i8042 active multiplexing all data (from touchpad, trackstick and external PS/2 mouse) come to one port. So it is not possible to know if external PS/2 mouse is connected or not. In most cases external PS/2 mouse is not connected so driver will create dev3 input device after first bare PS/2 packet will be received. So there will not be "ghost" input device. This change also helps in identifying possible problems in future if driver decides to report 6-bytes trackstick packets as 3-bytes bare PS/2 (data will be reported to dev3 instead dev2). Signed-off-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-02-15Input: ALPS - fix trackstick detection on some Dell LatitudesDmitry Torokhov
On some Dell Latitudes we fail to identify presence of trackstick unless we reset the device. The issue is quite benign as we do perform reset in alps_init(), so the trackstick ends up working, but mouse name reported to userspace is not accurate. In order to fix the issue while avoiding the additional lengthy reset we move the resrt to alps_detect() and keep the discovered state to be used later in alps_init(). Reported-by: Pali Rohár <pali.rohar@gmail.com> Tested-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-02-15Input: ALPS - consolidate setting protocol parametersDmitry Torokhov
Move setting of all protocol properties into alps_set_protocol (former alps_set_defaults) instead of having it split between several functions. Tested-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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