- Oct 04, 2020
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Michael Srba authored
Add support for the bt541 touchscreen IC from zinitix, loosely based on downstream driver. The driver currently supports multitouch (5 touch points). The bt541 seems to support touch keys, but the support was not added because that functionality is not being utilized by the touchscreen used for testing. Based on the similartities between downstream drivers, it seems likely that other similar touchscreen ICs can be supported with this driver in the future. Signed-off-by:
Michael Srba <Michael.Srba@seznam.cz> Link: https://lore.kernel.org/r/20201001122949.16846-1-michael.srba@seznam.cz Signed-off-by:
Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Michael Srba authored
This patch adds dts bindings for the zinitix bt541 touchscreen. Signed-off-by:
Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20201001122949.16846-2-michael.srba@seznam.cz Signed-off-by:
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- Sep 28, 2020
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Artur Rojek authored
Add a driver for joystick devices connected to ADC controllers supporting the Industrial I/O subsystem. Signed-off-by:
Artur Rojek <contact@artur-rojek.eu> Tested-by:
Paul Cercueil <paul@crapouillou.net> Tested-by:
Heiko Stuebner <heiko@sntech.de> Link: https://lore.kernel.org/r/20200927123302.31062-2-contact@artur-rojek.eu Signed-off-by:
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Artur Rojek authored
Add documentation for the adc-joystick driver, used to provide support for joysticks connected over ADC. Signed-off-by:
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- Sep 16, 2020
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Krzysztof Kozlowski authored
platform_get_irq() returns -ERRNO on error. In such case comparison to 0 would pass the check. Fixes: e443631d ("Input: serio - add support for Alwinner A10/A20 PS/2 controller") Signed-off-by:
Krzysztof Kozlowski <krzk@kernel.org> Acked-by:
Chen-Yu Tsai <wens@csie.org> Link: https://lore.kernel.org/r/20200828145744.3636-4-krzk@kernel.org Signed-off-by:
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Krzysztof Kozlowski authored
platform_get_irq() returns -ERRNO on error. In such case casting to unsigned and comparing to 0 would pass the check. Fixes: 7abf38d6 ("Input: twl4030-keypad - add device tree support") Reported-by:
kernel test robot <lkp@intel.com> Signed-off-by:
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Krzysztof Kozlowski authored
platform_get_irq() returns -ERRNO on error. In such case comparison to 0 would pass the check. Fixes: f3a1ba60 ("Input: omap4-keypad - use platform device helpers") Signed-off-by:
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Krzysztof Kozlowski authored
platform_get_irq() returns -ERRNO on error. In such case comparison to 0 would pass the check. Fixes: 60214f05 ("Input: ep93xx_keypad - update driver to new core support") Signed-off-by:
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YueHaibing authored
In stmfts_sysfs_hover_enable_write(), we should check value and sdata->hover_enabled is all true. Fixes: 78bcac7b ("Input: add support for the STMicroelectronics FingerTip touchscreen") Signed-off-by:
YueHaibing <yuehaibing@huawei.com> Link: https://lore.kernel.org/r/20200916141941.16684-1-yuehaibing@huawei.com Signed-off-by:
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Dmitry Torokhov authored
Open/close and resume/suspend paths are very similar, let's factor out common parts. Signed-off-by: -
Dan Carpenter authored
If imx6ul_tsc_init() fails then we need to clean up the clocks. I reversed the "if (input_dev->users) {" condition to make the code a bit simpler. Fixes: 6cc527b0 ("Input: imx6ul_tsc - propagate the errors") Signed-off-by:Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/20200905124942.GC183976@mwanda Signed-off-by:
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Johnny Chuang authored
Fixed typo for command from 0xE0 to 0xD0. Fixes: cf520c64 ("Input: elants_i2c - provide an attribute to show calibration count") Signed-off-by:
Johnny Chuang <johnny.chuang.emc@gmail.com> Link: https://lore.kernel.org/r/1600238783-32303-1-git-send-email-johnny.chuang.emc@gmail.com Signed-off-by:
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- Sep 14, 2020
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Johnny Chuang authored
This patch adds a new behavior to report touch major resolution based on information provided by firmware. In initial process, driver acquires touch information from touch ic. It contains one byte about the resolution value of ABS_MT_TOUCH_MAJOR. Touch driver will report touch major resolution by this information. Signed-off-by:
Harry Cutts <hcutts@chromium.org> Link: https://lore.kernel.org/r/1598581195-9874-1-git-send-email-johnny.chuang.emc@gmail.com Signed-off-by:
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Furquan Shaikh authored
On an AMD chromebook, where the same I2C bus is shared by both Raydium touchscreen and a trackpad device, it is observed that interleaving of I2C messages when `raydium_i2c_read_message()` is called leads to the Raydium touch IC reporting incorrect information. This is the sequence that was observed to result in the above issue: * I2C write to Raydium device for RM_CMD_BANK_SWITCH * I2C write to trackpad device * I2C read from trackpad device * I2C write to Raydium device for setting address * I2C read from Raydium device >>>> This provides incorrect information This change adds a new helper function `raydium_i2c_xfer()` that performs I2C transactions to the Raydium device. It uses the register address to decide if RM_CMD_BANK_SWITCH header needs to be sent to the device (i.e. if register address is greater than 255, then bank switch header is sent before the rest of the transaction). Additionally, it ensures that all the I2C operations performed as part of `raydium_i2c_xfer()` are done as a single i2c_transfer. This guarantees that no other transactions are initiated to any other device on the same bus in between. Additionally, `raydium_i2c_{send|read}*` functions are refactored to use this new helper function. Verified with the patch across multiple reboots (>100) that the information reported by the Raydium touchscreen device during probe is correct. Signed-off-by:Furquan Shaikh <furquan@google.com> Link: https://lore.kernel.org/r/20200821024006.3399663-1-furquan@google.com Signed-off-by:
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Hans de Goede authored
Some 2-in-1s which use the soc_button_array driver have this ugly issue in their DSDT where the _LID method modifies the irq-type settings of the GPIOs used for the power and home buttons. The intend of this AML code is to disable these buttons when the lid is closed. The AML does this by directly poking the GPIO controllers registers. This is problematic because when re-enabling the irq, which happens whenever _LID gets called with the lid open (e.g. on boot and on resume), it sets the irq-type to IRQ_TYPE_LEVEL_LOW. Where as the gpio-keys driver programs the type to, and expects it to be, IRQ_TYPE_EDGE_BOTH. This commit adds a workaround for this which (on affected devices) does not set gpio_keys_button.gpio on these 2-in-1s, instead it gets the irq for the GPIO, configures it as IRQ_TYPE_LEVEL_LOW (to match how the _LID AML code configures it) and passes the irq in gpio_keys_button.irq. Signed-off-by:
Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20200906122016.4628-2-hdegoede@redhat.com Signed-off-by:
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Hans de Goede authored
According to the Microsoft documentation for Windows 8 convertible devices, these devices should implement a PNP0C60 "laptop/slate mode state indicator" ACPI device. This device can work in 2 ways, if there is a GPIO which directly indicates the device is in tablet-mode or not then the direct-gpio mode should be used. If there is no such GPIO, but instead the events are coming from e.g. the embedded-controller, then there should still be a PNP0C60 ACPI device and event-injection should be used to send the events. The drivers/platform/x86/intel-vbtn.c code is an example from a standardized manner of doing the latter. On various 2-in-1s with either a detachable keyboard, or with 360° hinges, the direct GPIO mode is indicated by an ACPI device with a HID of INT33D3, which contains a single GpioInt in its ACPI resource table, which directly indicates if the device is in tablet-mode or not. This commit adds support for this to the soc_button_array code, as well as for the alternative ID9001 HID which some devices use instead of the INT33D3 HID. Signed-off-by:
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Hans de Goede authored
This is a preparation patch for adding support for Intel INT33D3 ACPI devices. These INT33D3 devices follow yet another Intel defined (but not documented) ACPI GPIO button standard. Unlike the ACPI GPIO button devices supported so far, the GPIO used in the INT33D3 devices is active-high, rather then active-low. This commit makes setting the gpio_keys_button.active_low flag configurable through the soc_button_info struct and enables it for all currently supported devices. Signed-off-by:
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- Sep 08, 2020
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Hans de Goede authored
Commit 696c6523 ("platform/x86: thinkpad_acpi: add mapping for new hotkeys") added support for a bunch of new hotkeys, but the clipping/snipping tool hotkey got ignored because there was no good key-code to map it to. Recently a new KEY_SELECTIVE_SCREENSHOT keycode was added by commit 3b059da9 ("Input: allocate keycode for "Selective Screenshot" key") quoting from the commit message: "New Chrome OS keyboards have a "snip" key that is basically a selective screenshot (allows a user to select an area of screen to be copied). Allocate a keycode for it." Support for this "snip" key seems like it is also a good match for the clipping/snipping tool hotkey, so map this hotkey to the new KEY_SELECTIVE_SCREENSHOT key-code. Reviewed-by:
Bastien Nocera <hadess@hadess.net> Acked-by:
Henrique de Moraes Holschuh <hmh@hmh.eng.br> Acked-by:
Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by:
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Hans de Goede authored
New Lenovo Thinkpad models, e.g. the X1 Carbon 8th gen and the new T14 gen1 models have 3 new symbols / shortcuts on their F9-F11 keys (and the thinkpad_acpi driver receives 3 new hkey events for these): F9: Has a symbol resembling a rectangular speech balloon, the manual says the hotkey functions shows or hides the notification center F10: Has a symbol of a telephone horn which has been picked up from the receiver, the manual says: "Answer incoming calls" F11: Has a symbol of a telephone horn which is resting on the receiver, the manual says: "Decline incoming calls" And these Thinkpad models also send a new 0x1316 hkey events when the Fn + right Shift key-combo is pressed. This commit adds support for these 4 new hkey events. Acked-by: -
Hans de Goede authored
The last 2 generations of Lenovo Thinkpads send an acpi_thinkpad event when Fn + right shift is pressed. This is intended for use with "Lenovo Quick Clean" software, which disables the touchpad + kbd for 2 minutes on this key-combo so that healthcare workes can disinfect it. But there is no silkscreen print on the right-keyboard to indicate this, so add a KEY_FN_RIGHT_SHIFT keycode define to use for this key-combo. Signed-off-by:
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Hans de Goede authored
New Lenovo Thinkpad models, e.g. the X1 Carbon 8th gen and the new T14 gen1 models have 3 new symbols / shortcuts on their F9-F11 keys (and the thinkpad_acpi driver receives 3 new "scancodes" for these): F9: Has a symbol resembling a rectangular speech balloon, the manual says the hotkey functions shows or hides the notification center F10: Has a symbol of a telephone horn which has been picked up from the receiver, the manual says: "Answer incoming calls" F11: Has a symbol of a telephone horn which is resting on the receiver, the manual says: "Decline incoming calls" We have no existing keycodes which are a good match for these, so add 3 new keycodes for these. I noticed that we have a hole in our keycodes between 0x1ba and 0x1c0 which does not seem to be reserved for any specific purpose, so these new 3 codes use 0x1bc - 0x1be, instead of starting at 0x27b. Acked-by:
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- Aug 25, 2020
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Joe Perches authored
Use semicolons and braces. Signed-off-by:
Joe Perches <joe@perches.com> Link: https://lore.kernel.org/r/02cb394f8c305473c1a783a5ea8425de79fe0ec1.1598331149.git.joe@perches.com Signed-off-by:
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- Aug 06, 2020
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Sebastian Reichel authored
Expose model and fw_version via sysfs. Also query the model in probe to make sure, that the I2C communication with the device works before successfully probing the driver. This is a bit complicated, since EETI devices do not have a sync interface. Sending the commands and directly reading does not work. Sending the command and waiting for some time is also not an option, since there might be touch events in the mean time. Last but not least we do not cache the results, since this interface can be used to check the I2C communication is still working as expected. Reviewed-by:
Enric Balletbo i Serra <enric.balletbo@collabora.com> Signed-off-by:
Sebastian Reichel <sebastian.reichel@collabora.com> Link: https://lore.kernel.org/r/20200805160520.456570-5-sebastian.reichel@collabora.com Signed-off-by:
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Sebastian Reichel authored
Add basic support for an optional reset gpio. Reviewed-by:
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Sebastian Reichel authored
This adds support for EXC80H60 and EXCH84 controllers, which use a different event type id and have two extra bits for the resolution (so the maximum is 16K instead of 4K). Signed-off-by:
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Sebastian Reichel authored
Convert the EETI EXC3000 binding to DT schema format using json-schema Signed-off-by:
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Colin Ian King authored
Currently when the call to fsp_reg_write fails -EIO is not being returned because the count is being returned instead of the return value in retval. Fix this by returning the value in retval instead of count. Addresses-Coverity: ("Unused value") Fixes: fc69f4a6 ("Input: add new driver for Sentelic Finger Sensing Pad") Signed-off-by:Colin Ian King <colin.king@canonical.com> Link: https://lore.kernel.org/r/20200603141218.131663-1-colin.king@canonical.com Signed-off-by:
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Colin Ian King authored
The variable ret is being initialized with a value that is never read and it is being updated later with a new value. The initialization is redundant and can be removed. Addresses-Coverity: ("Unused value") Signed-off-by: -
Colin Ian King authored
Currently the assignment of -ENOMEM to error is redundant because error is not being read and -ENOMEM is being hard coded as an error return. Fix this by returning the error code in variable 'error'; this also allows the error code from a failed call to input_register_device to be preserved and returned to the caller rather than just returning a possibly inappropriate -ENOMEM. Kudos to Dan Carpenter for the suggestion of an improved fix. Addresses-Coverity: ("Unused value") Signed-off-by:
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- Jul 30, 2020
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Jingle Wu authored
The update firmware flow of ic type 0x15 is same with ic type 0x14. Signed-off-by:
Jingle Wu <jingle.wu@emc.com.tw> Link: https://lore.kernel.org/r/20200730060526.12439-1-jingle.wu@emc.com.tw Signed-off-by:
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- Jul 28, 2020
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Nick Dyer authored
The workaround of reading all messages until an invalid is received is a way of forcing the CHG line high, which means that when using edge-triggered interrupts the interrupt can be acquired. With level-triggered interrupts the workaround is unnecessary. Also, most recent maXTouch chips have a feature called RETRIGEN which, when enabled, reasserts the interrupt line every cycle if there are messages waiting. This also makes the workaround unnecessary. Note: the RETRIGEN feature is only in some firmware versions/chips, it's not valid simply to enable the bit. Signed-off-by:
Nick Dyer <nick.dyer@itdev.co.uk> Acked-by:
Benson Leung <bleung@chromium.org> Acked-by:
Yufeng Shen <miletus@chromium.org> (cherry picked from ndyer/linux/for-upstream commit 1ae4e8281e491b22442cd5acdfca1862555f8ecb) [gdavis: Fix conflicts due to v4.6-rc7 commit eb43335c ("Input: atmel_mxt_ts - use mxt_acquire_irq in mxt_soft_reset").] Signed-off-by:
George G. Davis <george_davis@mentor.com> [jiada: reset use_retrigen_workaround at beginning of mxt_check_retrigen() call mxt_check_retrigen() after mxt_acquire_irq() in mxt_initialize() replace white-spaces with tab for MXT_COMMS_RETRIGEN Changed to check if IRQ is level type] Signed-off-by:
Jiada Wang <jiada_wang@mentor.com> Link: https://lore.kernel.org/r/20200727151637.23810-1-jiada_wang@mentor.com Signed-off-by:
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Pavel Machek authored
Fix non-existing constant in documentation. Signed-off-by:
Pavel Machek (CIP) <pavel@denx.de> Link: https://lore.kernel.org/r/20200724084025.GB31930@amd Signed-off-by:
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- Jul 22, 2020
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Xiongfeng Wang authored
When I cat some module parameters by sysfs, it displays as follows. It's better to add a newline for easy reading. root@syzkaller:~# cat /sys/module/ati_remote2/parameters/mode_mask 0x1froot@syzkaller:~# cat /sys/module/ati_remote2/parameters/channel_mask 0xffffroot@syzkaller:~# Signed-off-by:
Xiongfeng Wang <wangxiongfeng2@huawei.com> Link: https://lore.kernel.org/r/20200720092148.9320-1-wangxiongfeng2@huawei.com Signed-off-by:
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Xiongfeng Wang authored
When I cat parameter 'proto' by sysfs, it displays as follows. It's better to add a newline for easy reading. root@syzkaller:~# cat /sys/module/psmouse/parameters/proto autoroot@syzkaller:~# Signed-off-by:
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Dmitry Torokhov authored
Sync up with 'for-linus' branch to resolve conflict in Elan touchpad driver.
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- Jul 21, 2020
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Dmitry Torokhov authored
Bring in update to Elan touchpad driver to support newer touchpads with higher resolution.
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Randy Dunlap authored
Drop the repeated word "to" in a comment. Signed-off-by:
Randy Dunlap <rdunlap@infradead.org> Link: https://lore.kernel.org/r/20200719003131.21050-1-rdunlap@infradead.org Signed-off-by:
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Jingle Wu authored
Newer controllers (identified as "pattern" version 2) send higher resolution reports, with 16-bit X and Y coordinates (previous generations used 12-bit values). These new high resolution reports use report ID of 0x60. SMbus controllers use the same buffer size for both the new and old reports, and because of that high resolution reports no longer carry area of contact data with SMbus. Signed-off-by:
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- Jul 20, 2020
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Dmitry Torokhov authored
We do not need to constantly re-query pattern ID, we can instead query it once and then pass to methods that need it. Signed-off-by:
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- Jul 17, 2020
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Jingle Wu authored
This adds firmware size and page sizes for ic types 0x11, 0x13 and 0x14. IC 0x14 uses 512-byte firmware page size. Signed-off-by:
Jingle Wu <jingle.wu@emc.com.tw>.> Signed-off-by:
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