- 08 Nov, 2017 2 commits
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Martin Kepplinger authored
If INPUT_PROP_DIRECT is set, userspace doesn't have to fall back to old ways of identifying touchscreen devices. In order to identify a touchscreen device, Android for example, seems to already depend on INPUT_PROP_DIRECT to be present in drivers. udev still checks for either BTN_TOUCH or INPUT_PROP_DIRECT. Checking for BTN_TOUCH however can quite easily lead to false positives; it's a code that not only touchscreen device drivers use. According to the documentation, touchscreen drivers should have this property set and in order to make life easy for userspace, let's set it. Signed-off-by:
Martin Kepplinger <martink@posteo.de> Signed-off-by:
Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Kai-Heng Feng authored
ELAN060C touchpad uses elan_i2c as its driver. It can be found on Lenovo ideapad 320-14AST. BugLink: https://bugs.launchpad.net/bugs/1727544Signed-off-by:
Kai-Heng Feng <kai.heng.feng@canonical.com> Cc: stable@vger.kernel.org Signed-off-by:
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- 03 Nov, 2017 2 commits
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Stefan Brüns authored
Sync events are sent by sparse_keymap_report_entry for normal KEY_* events, and are generated by several drivers after generating SW_* events, so sparse_keymap_report_entry should do the same. Without the sync, events are accumulated in the kernel. Currently, no driver uses sparse-keymap for SW_* events, but it is required for the intel-vbtn platform driver to generate SW_TABLET_MODE events. Signed-off-by:
Stefan Brüns <stefan.bruens@rwth-aachen.de> Signed-off-by:
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Martin Kepplinger authored
If INPUT_PROP_DIRECT is set, userspace doesn't have to fall back to old ways of identifying touchscreen devices. Let's add it. Signed-off-by:
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- 27 Oct, 2017 2 commits
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Andrew Duggan authored
By convention the first 6 bits of F30 Ctrl 2 and 3 are used to signify GPIOs which are connected to buttons. Additional GPIOs may be used as input GPIOs to signal the touch controller of some event (ie disable touchpad). These additional GPIOs may meet the criteria of a button in rmi_f30_is_valid_button() but should not be considered buttons. This patch limits the GPIOs which are mapped to buttons to just the first 6. Signed-off-by:
Andrew Duggan <aduggan@synaptics.com> Reported-by:
Daniel Martin <consume.noise@gmail.com> Tested-by:
Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by:
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Dmitry Torokhov authored
parse_hid_report_descriptor() has a while (i < length) loop, which only guarantees that there's at least 1 byte in the buffer, but the loop body can read multiple bytes which causes out-of-bounds access. Reported-by:
Andrey Konovalov <andreyknvl@google.com> Reviewed-by:
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- 24 Oct, 2017 1 commit
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Kai-Heng Feng authored
ELAN0611 touchpad uses elan_i2c as its driver. It can be found on Lenovo ideapad 320-15IKB. So add it to ACPI table to enable the touchpad. [Ido Adiv <idoad123@gmail.com> reports that the same ACPI ID is used for Elan touchpad in ideapad 520]. BugLink: https://bugs.launchpad.net/bugs/1723736Signed-off-by:
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- 22 Oct, 2017 1 commit
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Dmitry Torokhov authored
The commit 8724ecb0 ("Input: allow matching device IDs on property bits") started using property bits when generating module aliases for input handlers, but did not adjust the generation of MODALIAS attribute on input device uevents, breaking automatic module loading. Given that no handler currently uses property bits in their module tables, let's revert this part of the commit for now. Reported-by:
Damien Wyart <damien.wyart@gmail.com> Tested-by:
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- 20 Oct, 2017 1 commit
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Dmitry Torokhov authored
Before trying to use CDC union descriptor, try to validate whether that it is sane by checking that intf->altsetting->extra is big enough and that descriptor bLength is not too big and not too small. Reported-by:
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- 19 Oct, 2017 8 commits
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Roderick Colenbrander authored
Introduce a device table used for blacklisting devices. We currently blacklist the motion sensor subdevice of THQ Udraw and Sony ds3/ds4. Signed-off-by:
Roderick Colenbrander <roderick.colenbrander@sony.com> [dtor: siwtched to blacklist built on input_device_id and using input_match_device_id()] Signed-off-by:
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Dmitry Torokhov authored
Let's allow matching input devices on their property bits, both in-kernel and when generating module aliases. Tested-by:
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Dmitry Torokhov authored
Factor out and export input_match_device_id() so that modules may use it. It will be needed by joydev to blacklist accelerometers in composite devices. Tested-by:
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Paul Cercueil authored
The Goodix panel triggers an interrupt on touch events. However, its registers will contain the valid values a short time after the interrupt, and not when it's raised. At that moment, the 'buffer status' bit is set. Previously, if the 'buffer status' bit was not set when the registers were read, the data was discarded and no input event was emitted, causing "finger down" or "finger up" events to be missed sometimes. This went unnoticed until v4.9, as the DesignWare I2C driver commonly used with this driver had enough latency for that bug to never trigger until commit 2702ea7d ("i2c: designware: wait for disable/enable only if necessary"). Now, in the IRQ handler we will poll (with a timeout) the 'buffer status' bit and process the data of the panel as soon as this bit gets set. Note that the Goodix panel will send a few spurious interrupts after the 'finger up' event, in which the 'buffer status' bit will never be set. Cc: Bastien Nocera <hadess@hadess.net> Cc: russianneuromancer@ya.ru Signed-off-by:
Paul Cercueil <paul@crapouillou.net> [hdegoede@redhat.com: Change poll loop to use jiffies, add comment about typical poll time] Signed-off-by:
Hans de Goede <hdegoede@redhat.com> [dtor: rearranged control flow a bit to avoid explicit goto and double check] Reviewed-by:
Bastien Nocera <hadess@hadess.net> Signed-off-by:
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Hans de Goede authored
Now that we have a platform_device_id table and multiple supported ids we should be using MODULE_DEVICE_TABLE instead of MODULE_ALIAS. This fixes a regression on Bay and Cherry Trail devices, where the power button is now enumerated as an "axp221-pek" and it was impossible to wakeup these devices from suspend since the module did not load. Fixes: c3cc9447 ("Input: axp20x-pek - add support for AXP221 PEK") Signed-off-by:
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Damien Riegel authored
Currently, enabling keypad interrupts is one of the first operations done on the keypad, even before the interrupt is requested, so there is a small time window where the keypad can fire interrupts but the driver is not yet ready to handle them. It's fine for level interrupts because they will be handled anyway, but not so much for edge ones. This commit modifies and moves the function in charge of configuring the keypad. Enabling interrupts is now the last thing done on the keypad, and after the interrupt has been requested by the driver. Writing to the config register was also used to determine if the device was indeed present on the bus or not, this has been replaced by reading the lock/event count register to keep the same functionality. Signed-off-by:
Damien Riegel <damien.riegel@savoirfairelinux.com> Signed-off-by:
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Chanwoo Choi authored
The commit 78bcac7b ("Input: add support for the STMicroelectronics FingerTip touchscreen) used the 'touchscreen_parse_properties()' helper function in order to get the value of common properties. But, commit 78bcac7b didn't set the capability of ABS_MT_POSITION_* before calling touchscreen_parse_properties(). In result, the max_x and max_y of 'struct touchscreen_properties' were not set. Fixes: 78bcac7b ("Input: add support for the STMicroelectronics FingerTip touchscreen") Cc: stable@vger.kernel.org Signed-off-by:
Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by:
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Jeff Lance authored
Step config setting for 5 wire touchscreen is incorrect for Y coordinates. It was broken while we moved to DT. If you look close at the offending commit bb76dc09 ("input: ti_am33x_tsc: Order of TSC wires, made configurable"), the change was: - STEPCONFIG_XNP | STEPCONFIG_YPN; + ts_dev->bit_xn | ts_dev->bit_yp; while bit_xn = STEPCONFIG_XNN and bit_yp = STEPCONFIG_YNN. Not quite the same. Fixes: bb76dc09 ("input: ti_am33x_tsc: Order of TSC wires, made configurable") Signed-off-by:
Jeff Lance <j-lance1@ti.com> [vigneshr@ti.com: Rebase to v4.14-rc1] Signed-off-by:
Vignesh R <vigneshr@ti.com> Reviewed-by:
Michael Nazzareno Trimarchi <michael@amarulasolutions.com> Signed-off-by:
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- 10 Oct, 2017 1 commit
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Andrew Duggan authored
In certain situations kernel tracking seems to be getting confused and incorrectly reporting the slot of a contact. On example is when the user does a three finger click or tap and then places two fingers on the touchpad in the same area. The kernel tracking code seems to continue to think that there are three contacts on the touchpad and incorrectly alternates the slot of one of the contacts. The result that is the input subsystem reports a stream of button press and release events as the reported slot changes. Kernel tracking was originally enabled to prevent cursor jumps, but it is unclear how much of an issue kernel jumps actually are. This patch simply disabled kernel tracking for now. Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1482640Signed-off-by:
Kamil Páral <kparal@redhat.com> Acked-by:
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- 22 Sep, 2017 1 commit
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KT Liao authored
The original 20ms delay is only marginally enough delay after a block write operation during firmware update. Let's increase the delay to ensure that the controller finishes up storing the page to avoid failures in the firmware updates. Signed-off-by:
KT Liao <kt.liao@emc.com.tw> Signed-off-by:
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- 21 Sep, 2017 2 commits
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Dmitry Torokhov authored
If FF request comes in while uinput device is going away, uinput_request_send() will fail with -ENODEV, and uinput_request_submit() will attempt to mark the slot as unused by calling uinput_request_done(). Unfortunately in this case we haven't initialized request->done completion yet, and we get a crash: [ 39.402036] BUG: spinlock bad magic on CPU#1, fftest/3108 [ 39.402046] lock: 0xffff88006a93bb00, .magic: 00000000, .owner: /39, .owner_cpu: 1217155072 [ 39.402055] CPU: 1 PID: 3108 Comm: fftest Tainted: G W 4.13.0+ #15 [ 39.402059] Hardware name: LENOVO 20HQS0EG02/20HQS0EG02, BIOS N1MET37W (1.22 ) 07/04/2017 [ 39.402064] 0000000000000086 f0fad82f3ceaa120 ffff88006a93b9a0 ffffffff9de941bb [ 39.402077] ffff88026df8ae00 ffff88006a93bb00 ffff88006a93b9c0 ffffffff9dca62b7 [ 39.402088] ffff88006a93bb00 ffff88006a93baf8 ffff88006a93b9e0 ffffffff9dca62e7 [ 39.402099] Call Trace: [ 39.402112] [<ffffffff9de941bb>] dump_stack+0x4d/0x63 [ 39.402123] [<ffffffff9dca62b7>] spin_dump+0x97/0x9c [ 39.402130] [<ffffffff9dca62e7>] spin_bug+0x2b/0x2d [ 39.402138] [<ffffffff9dca6373>] do_raw_spin_lock+0x28/0xfd [ 39.402147] [<ffffffff9e3055cd>] _raw_spin_lock_irqsave+0x19/0x1f [ 39.402154] [<ffffffff9dca05b7>] complete+0x1d/0x48 [ 39.402162] [<ffffffffc04f30af>] 0xffffffffc04f30af [ 39.402167] [<ffffffffc04f468c>] 0xffffffffc04f468c [ 39.402177] [<ffffffff9dd59c16>] ? __slab_free+0x22f/0x359 [ 39.402184] [<ffffffff9dcc13e9>] ? tk_clock_read+0xc/0xe [ 39.402189] [<ffffffffc04f471f>] 0xffffffffc04f471f [ 39.402195] [<ffffffff9dc9ffe5>] ? __wake_up+0x44/0x4b [ 39.402200] [<ffffffffc04f3240>] ? 0xffffffffc04f3240 [ 39.402207] [<ffffffff9e0f57f3>] erase_effect+0xa1/0xd2 [ 39.402214] [<ffffffff9e0f58c6>] input_ff_flush+0x43/0x5c [ 39.402219] [<ffffffffc04f32ad>] 0xffffffffc04f32ad [ 39.402227] [<ffffffff9e0f174f>] input_flush_device+0x3d/0x51 [ 39.402234] [<ffffffff9e0f69ae>] evdev_flush+0x49/0x5c [ 39.402243] [<ffffffff9dd62d6e>] filp_close+0x3f/0x65 [ 39.402253] [<ffffffff9dd7dcf7>] put_files_struct+0x66/0xc1 [ 39.402261] [<ffffffff9dd7ddeb>] exit_files+0x47/0x4e [ 39.402270] [<ffffffff9dc6b329>] do_exit+0x483/0x969 [ 39.402278] [<ffffffff9dc73211>] ? recalc_sigpending_tsk+0x3d/0x44 [ 39.402285] [<ffffffff9dc6c7a2>] do_group_exit+0x42/0xb0 [ 39.402293] [<ffffffff9dc767e1>] get_signal+0x58d/0x5bf [ 39.402300] [<ffffffff9dc03701>] do_signal+0x37/0x53e [ 39.402307] [<ffffffff9e0f8401>] ? evdev_ioctl_handler+0xac8/0xb04 [ 39.402314] [<ffffffff9e0f8464>] ? evdev_ioctl+0x10/0x12 [ 39.402321] [<ffffffff9dd74cfa>] ? do_vfs_ioctl+0x42e/0x501 [ 39.402328] [<ffffffff9dc0170e>] prepare_exit_to_usermode+0x66/0x90 [ 39.402333] [<ffffffff9dc0181b>] syscall_return_slowpath+0xe3/0xec [ 39.402339] [<ffffffff9e305b7b>] int_ret_from_sys_call+0x25/0x8f While we could solve this by simply initializing the completion earlier, we are better off rearranging the code a bit so we avoid calling complete() on requests that we did not send out. This patch consolidates marking request slots as free in one place (in uinput_request_submit(), the same place where we acquire them) and having everyone else simply signal completion of the requests. Fixes: 00ce756c ("Input: uinput - mark failed submission requests as free") Signed-off-by:
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Dmitry Torokhov authored
Normally, when input device supporting force feedback effects is being destroyed, we try to "flush" currently playing effects, so that the physical device does not continue vibrating (or executing other effects). Unfortunately this does not work well for uinput as flushing of the effects deadlocks with the destroy action: - if device is being destroyed because the file descriptor is being closed, then there is noone to even service FF requests; - if device is being destroyed because userspace sent UI_DEV_DESTROY, while theoretically it could be possible to service FF requests, userspace is unlikely to do so (they'd need to make sure FF handling happens on a separate thread) even if kernel solves the issue with FF ioctls deadlocking with UI_DEV_DESTROY ioctl on udev->mutex. To avoid lockups like the one below, let's install a custom input device flush handler, and avoid trying to flush force feedback effects when we destroying the device, and instead rely on uinput to shut off the device properly. NMI watchdog: Watchdog detected hard LOCKUP on cpu 3 ... <<EOE>> [<ffffffff817a0307>] _raw_spin_lock_irqsave+0x37/0x40 [<ffffffff810e633d>] complete+0x1d/0x50 [<ffffffffa00ba08c>] uinput_request_done+0x3c/0x40 [uinput] [<ffffffffa00ba587>] uinput_request_submit.part.7+0x47/0xb0 [uinput] [<ffffffffa00bb62b>] uinput_dev_erase_effect+0x5b/0x76 [uinput] [<ffffffff815d91ad>] erase_effect+0xad/0xf0 [<ffffffff815d929d>] flush_effects+0x4d/0x90 [<ffffffff815d4cc0>] input_flush_device+0x40/0x60 [<ffffffff815daf1c>] evdev_cleanup+0xac/0xc0 [<ffffffff815daf5b>] evdev_disconnect+0x2b/0x60 [<ffffffff815d74ac>] __input_unregister_device+0xac/0x150 [<ffffffff815d75f7>] input_unregister_device+0x47/0x70 [<ffffffffa00bac45>] uinput_destroy_device+0xb5/0xc0 [uinput] [<ffffffffa00bb2de>] uinput_ioctl_handler.isra.9+0x65e/0x740 [uinput] [<ffffffff811231ab>] ? do_futex+0x12b/0xad0 [<ffffffffa00bb3f8>] uinput_ioctl+0x18/0x20 [uinput] [<ffffffff81241248>] do_vfs_ioctl+0x298/0x480 [<ffffffff81337553>] ? security_file_ioctl+0x43/0x60 [<ffffffff812414a9>] SyS_ioctl+0x79/0x90 [<ffffffff817a04ee>] entry_SYSCALL_64_fastpath+0x12/0x71 Reported-by:
Rodrigo Rivas Costa <rodrigorivascosta@gmail.com> Reported-by:
Clément VUCHENER <clement.vuchener@gmail.com> Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=193741Signed-off-by:
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- 15 Sep, 2017 2 commits
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Dmitry Torokhov authored
Prepare second round of input updates for 4.14 merge window.
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Kai-Heng Feng authored
Similar to other Gigabyte laptops, the touchpad on P57 requires a keyboard reset to detect Elantech touchpad correctly. BugLink: https://bugs.launchpad.net/bugs/1594214Signed-off-by:
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- 12 Sep, 2017 1 commit
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Cameron Gutman authored
We should only see devices with interrupt endpoints. Ignore any other endpoints that we find, so we don't send try to send them interrupt URBs and trigger a WARN down in the USB stack. Reported-by:
Cameron Gutman <aicommander@gmail.com> Signed-off-by:
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- 11 Sep, 2017 5 commits
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Dmitry Torokhov authored
Instead of stopping the touchscreen we were starting it in suspend, and disabling it in resume. Fixes: c899afed ("Input: ucb1400_ts - convert to threaded IRQ") Reported-by:
Anton Volkov <avolkov@ispras.ru> Signed-off-by:
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Luca Ceresoli authored
reg_addr->reg_report_rate is supposed to exist in M06, not M09. The driver is written to skip avoids access to non-existing registers when the register address is NO_REGISTER (0xff). But reg_addr->reg_report_rate is initialized to 0x00 by devm_kzalloc() (in edt_ft5x06_ts_probe()) and not changed thereafter. So the checks do not work and an access to register 0x00 is done. Fix by setting reg_addr->reg_report_rate to NO_REGISTER. Also fix the only place where reg_report_rate is checked against zero instead of NO_REGISTER. Signed-off-by:
Luca Ceresoli <luca@lucaceresoli.net> Signed-off-by:
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Colin Ian King authored
Don't populate the arrays debounce_packet on the stack, instead make them static. Makes the object code smaller by over 870 bytes: Before: text data bss dec hex filename 30553 9152 0 39705 9b19 drivers/input/mouse/elantech.o After: text data bss dec hex filename 29521 9312 0 38833 97b1 drivers/input/mouse/elantech.o Signed-off-by:
Colin Ian King <colin.king@canonical.com> Signed-off-by:
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Colin Ian King authored
Don't populate the const array header on the stack, instead make it static. Makes the object code smaller by over 180 bytes: Before: text data bss dec hex filename 6003 1536 0 7539 1d73 surface3_spi.o After: text data bss dec hex filename 5726 1632 0 7358 1cbe surface3_spi.o Signed-off-by:
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Sergei A. Trusov authored
On some x86 tablets with a Goodix touchscreen, the Windows logo on the front is a capacitive home button. Touching this button results in a touch with bit 4 of the first byte set, while only the lower 4 bits (0-3) are used to indicate the number of touches. Report a KEY_LEFTMETA press when this happens. Note that the hardware might support more than one button, in which case the "id" byte of coor_data would identify the button in question. This is not implemented as we don't have access to hardware with multiple buttons. Signed-off-by:
Sergei A. Trusov <sergei.a.trusov@ya.ru> Acked-by:
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- 04 Sep, 2017 3 commits
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Sebastian Reichel authored
Provide a simple driver for PWM controllable vibrators. It will be used by Motorola Droid 4. Signed-off-by:
Sebastian Reichel <sebastian.reichel@collabora.co.uk> Acked-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Colin Ian King authored
Don't populate the array seq on the stack, instead make it static. Makes the object code smaller by over 170 bytes: Before: text data bss dec hex filename 13227 3232 0 16459 404b drivers/input/joystick/adi.o After: text data bss dec hex filename 12957 3328 0 16285 3f9d drivers/input/joystick/adi.o Signed-off-by:
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Dmitry Torokhov authored
Prepare input updates for 4.14 merge window.
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- 01 Sep, 2017 1 commit
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Colin Ian King authored
Don't populate the array seq on the stack, instead make it static. Makes the object code smaller by over 1100 bytes: Before: text data bss dec hex filename 6152 1216 64 7432 1d08 drivers/input/mouse/byd.o After: text data bss dec hex filename 4974 1280 64 6318 18ae drivers/input/mouse/byd.o Signed-off-by:
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- 31 Aug, 2017 4 commits
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Michal Simek authored
Fix multiline comments style not to be reported by checkpatch. Signed-off-by:
Michal Simek <michal.simek@xilinx.com> Signed-off-by:
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Arvind Yadav authored
clk_prepare_enable() can fail here and we must check its return value. Signed-off-by:
Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by:
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Arvind Yadav authored
clk_prepare_enable() can fail here and we must check its return value. Signed-off-by:
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Cameron Gutman authored
The PowerA gamepad initialization quirk worked with the PowerA wired gamepad I had around (0x24c6:0x543a), but a user reported [0] that it didn't work for him, even though our gamepads shared the same vendor and product IDs. When I initially implemented the PowerA quirk, I wanted to avoid actually triggering the rumble action during init. My tests showed that my gamepad would work correctly even if it received a rumble of 0 intensity, so that's what I went with. Unfortunately, this apparently isn't true for all models (perhaps a firmware difference?). This non-working gamepad seems to require the real magic rumble packet that the Microsoft driver sends, which actually vibrates the gamepad. To counteract this effect, I still send the old zero-rumble PowerA quirk packet which cancels the rumble effect before the motors can spin up enough to vibrate. [0]: https://github.com/paroj/xpad/issues/48#issuecomment-313904867Reported-by:
Kyle Beauchamp <kyleabeauchamp@gmail.com> Tested-by:
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- 28 Aug, 2017 3 commits
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Anthony Martin authored
User-modified input settings no longer survive a suspend/resume cycle. Starting with 4.12, the touchpad is reinitialized on every reconnect because the hardware appears to be different. This can be reproduced by running the following as root: echo -n reconnect >/sys/devices/platform/i8042/serio1/drvctl A line like the following will show up in dmesg: [30378.295794] psmouse serio1: synaptics: hardware appears to be different: id(149271-149271), model(114865-114865), caps(d047b3-d047b1), ext(b40000-b40000). Note the single bit difference in caps: bit 1 (SYN_CAP_MULTIFINGER). This happens because we modify our stored copy of the device info capabilities when we enable advanced gesture mode but this change is not reflected in the actual hardware capabilities. It worked in the past because synaptics_query_hardware used to modify the stored synaptics_device_info struct instead of filling in a new one, as it does now. Fix it by no longer faking the SYN_CAP_MULTIFINGER bit when setting advanced gesture mode. This necessitated a small refactoring. Fixes: 6c53694f ("Input: synaptics - split device info into a separate structure") Signed-off-by:Anthony Martin <ality@pbrane.org> Cc: stable@vger.kernel.org Signed-off-by:
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Danilo Krummrich authored
This driver provides PS/2 serio bus support by implementing bit banging with the GPIO API. The GPIO pins, data and clock, can be configured with a node in the device tree or by generic device properties (GDP). Writing to a device is supported as well, though it is possible timings can not be halt as they are tough and difficult to reach with bit banging. Therefore it can be configured (also in DT and GDP) whether the serio write function should be available for clients. This driver is for development purposes and not recommended for productive use. However, this driver can be useful e.g. when no USB port is available or using old peripherals is desired as PS/2 controller chips getting rare. This driver was tested on bcm2825 and on Kirin 960 and it worked well together with the atkbd and psmouse driver. Signed-off-by:
Danilo Krummrich <danilokrummrich@dk-develop.de> Reviewed-by:
Linus Walleij <linus.walleij@linaro.org> Acked-by:
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Liang Yan authored
Long pressed key could not show right in XEN vncviewer after tigervnc client changed the way how to send repeat keys, from "Down Up Down Up ..." to "Down Down ... Up". This will report autorepeat to input by checking if same key being pressed, and let handler process it finally. Signed-off-by:
Liang Yan <lyan@suse.com> Signed-off-by:
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