- 29 Aug, 2024 1 commit
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Dmitry Torokhov authored
Commit 8bccf667 ("Input: cypress_ps2 - report timeouts when reading command status") uncovered an existing problem with cypress_ps2 driver: it tries waiting on a PS/2 device waitqueue without using the rest of libps2. Unfortunately without it nobody signals wakeup for the waiting process, and each "extended" command was timing out. But the rest of the code simply did not notice it. Fix this by switching from homegrown way of sending request to get command response and reading it to standard ps2_command() which does the right thing. Reported-by:
Woody Suwalski <terraluna977@gmail.com> Tested-by:
Dmitry Torokhov <dmitry.torokhov@gmail.com>
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- 20 Aug, 2024 1 commit
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Dmitry Torokhov authored
We need to read a u32 value (4 bytes), not size of a pointer to that value. Also, himax_read_mcu() wrapper is an overkill, remove it and use himax_bus_read() directly. Reported-by:
kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202408200301.Ujpj7Vov-lkp@intel.com/ Fixes: 0944829d ("Input: himax_hx83112b - implement MCU register reading") Tested-by:
Felix Kaechele <felix@kaechele.ca> Link: https://lore.kernel.org/r/ZsPdmtfC54R7JVxR@google.comSigned-off-by:
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- 19 Aug, 2024 3 commits
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Werner Sembach authored
The old quirk combination sometimes cause a laggy keyboard after boot. With the new quirk the initial issue of an unresponsive keyboard after s3 resume is also fixed, but it doesn't have the negative side effect of the sometimes laggy keyboard. Signed-off-by:
Werner Sembach <wse@tuxedocomputers.com> Cc: stable@vger.kernel.org Reviewed-by:
Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20240104183118.779778-3-wse@tuxedocomputers.comSigned-off-by:
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Werner Sembach authored
On s3 resume the i8042 driver tries to restore the controller to a known state by reinitializing things, however this can confuse the controller with different effects. Mostly occasionally unresponsive keyboards after resume. These issues do not rise on s0ix resume as here the controller is assumed to preserved its state from before suspend. This patch adds a quirk for devices where the reinitialization on s3 resume is not needed and might be harmful as described above. It does this by using the s0ix resume code path at selected locations. This new quirk goes beyond what the preexisting reset=never quirk does, which only skips some reinitialization steps. Signed-off-by:
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Takashi Iwai authored
Yet another quirk entry for Fujitsu laptop. Lifebook E756 requires i8041.nomux for keeping the touchpad working after suspend/resume. Link: https://bugzilla.suse.com/show_bug.cgi?id=1229056Signed-off-by:
Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240814100630.2048-1-tiwai@suse.deSigned-off-by:
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- 05 Aug, 2024 3 commits
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Dmitry Torokhov authored
From: Dmitry Torokhov <dmitry.torokhov@gmail.com> When exercising uinput interface syzkaller may try setting up device with a really large number of slots, which causes memory allocation failure in input_mt_init_slots(). While this allocation failure is handled properly and request is rejected, it results in syzkaller reports. Additionally, such request may put undue burden on the system which will try to free a lot of memory for a bogus request. Fix it by limiting allowed number of slots to 100. This can easily be extended if we see devices that can track more than 100 contacts. Reported-by:
Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Reported-by:
syzbot <syzbot+0122fa359a69694395d5@syzkaller.appspotmail.com> Closes: https://syzkaller.appspot.com/bug?extid=0122fa359a69694395d5 Link: https://lore.kernel.org/r/Zqgi7NYEbpRsJfa2@google.comSigned-off-by:
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Felix Kaechele authored
The driver supports the FT8201 chip as well. It registers up to 10 touch points. Tested on: Lenovo ThinkSmart View (CD-18781Y), LCM: BOE TV080WXM-LL4 Signed-off-by:
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Felix Kaechele authored
Document FocalTech FT8201 support by adding the compatible. Signed-off-by:
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20240804031310.331871-2-felix@kaechele.caSigned-off-by:
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- 31 Jul, 2024 1 commit
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John Keeping authored
The abs-fuzz and abs-flat properties are documented as optional. When these are absent, fwnode_property_read_u32() will leave the input unchanged, meaning that an axis either picks up the value for the previous axis or an uninitialized value. Explicitly set these values to zero when they are unspecified to match the documented behaviour in the device tree bindings. Signed-off-by:
John Keeping <jkeeping@inmusicbrands.com> Link: https://lore.kernel.org/r/20240731093310.3696919-1-jkeeping@inmusicbrands.comSigned-off-by:
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- 24 Jul, 2024 2 commits
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Jonathan Denose authored
The kernel reports that the touchpad for this device can support a different bus. With SMBus enabled the touchpad movement is smoother and three-finger gestures are recognized. Signed-off-by:
Jonathan Denose <jdenose@google.com> Link: https://lore.kernel.org/r/20240719180612.1.Ib652dd808c274076f32cd7fc6c1160d2cf71753b@changeidSigned-off-by:
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Marek Vasut authored
In case the touch controller is not connected, this message keeps scrolling on the console indefinitelly. Ratelimit it to avoid filling kernel logs. " ads7846 spi2.1: spi_sync --> -22 " Signed-off-by:
Marek Vasut <marex@denx.de> Link: https://lore.kernel.org/r/20240708211913.171243-1-marex@denx.deSigned-off-by:
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- 15 Jul, 2024 1 commit
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Dmitry Torokhov authored
Prepare input updates for 6.11 merge window.
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- 13 Jul, 2024 5 commits
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Dmitry Torokhov authored
The locking rules in the driver came from era when sysfs attributes could live past the point of time when device would be unbound from the driver, and so used module-global semaphore (potentially shared between multiple yealink devices). Thankfully these times are long gone and attributes will not be accessible once they are removed. Simplify the logic by moving to per-device mutex, stop checking if there is driver data instance attached to the interface, and use guard notation to acquire the mutex. Reviewed-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/20240710234855.311366-2-dmitry.torokhov@gmail.comSigned-off-by:
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Dmitry Torokhov authored
Instead of manually creating driver-specific device attributes set struct usb_driver->dev_groups pointer to have the driver core do it. Reviewed-by:
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Dmitry Torokhov authored
Instead of manually creating driver-specific device attributes set struct usb_driver->dev_groups pointer to have the driver core do it. Reviewed-by:
Ville Syrjälä <syrjala@sci.fi> Reviewed-by:
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Dmitry Torokhov authored
Instead of manually creating driver-specific device attributes set struct driver->dev_groups pointer to have the driver core do it. This also fixes issue with the attribute not being deleted on driver unbind. Reviewed-by:
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Dmitry Torokhov authored
Instead of manually creating driver-specific device attributes, set struct driver->dev_groups pointer to have the driver core do it. Reviewed-by:
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- 11 Jul, 2024 3 commits
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Philipp Zabel authored
Add support for EXC81W32 controllers. Tested with firmware reported as type "PCAP81X32 Series", model "Orion_0183_1019", fw_version "8001280G". Signed-off-by:
Philipp Zabel <p.zabel@pengutronix.de> Link: https://lore.kernel.org/r/20240710-input-exc3000-exc81w32-v3-2-4272183628b4@pengutronix.deSigned-off-by:
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Philipp Zabel authored
Add compatible for EXC81W32 touchscreen controllers. They use the same protocol and have the same resolution as EXC80H84. Signed-off-by:
Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20240710-input-exc3000-exc81w32-v3-1-4272183628b4@pengutronix.deSigned-off-by:
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Dmitry Torokhov authored
Do not use kernel-doc style for comment describing contents of the source file, as it trips the script: scripts/kernel-doc -none drivers/input/misc/twl4030-pwrbutton.c drivers/input/misc/twl4030-pwrbutton.c:2: info: Scanning doc for function twl4030 drivers/input/misc/twl4030-pwrbutton.c:33: warning: expecting prototype for twl4030(). Prototype was for PWR_PWRON_IRQ() instead 1 warnings Also remove file name from the same comment - it it not the best idea to have it as they tend to get stale when sources get moved or renamed. Reported-by:
Mirsad Todorovac <mtodorovac69@gmail.com> Tested-by:
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- 08 Jul, 2024 18 commits
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Felix Kaechele authored
The HX83100A is a bit of an outlier in the Himax HX831xxx series of touch controllers as it requires reading touch events through the AHB interface of the MCU rather than providing a dedicated FIFO address like the other chips do. This patch implements the specific read function and introduces the HX83100A chip with an appropriate i2c ID and DT compatible string. The HX83100A doesn't have a straightforward way to do chip identification, which is why it is not implemented in this patch. Tested on: Lenovo ThinkSmart View (CD-18781Y) / Innolux P080DDD-AB2 LCM Signed-off-by:
Paul Gale <paul@siliconpixel.com> Link: https://lore.kernel.org/r/20240620145019.156187-6-felix@kaechele.caSigned-off-by:
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Felix Kaechele authored
In preparation for HX83100A support allow defining separate functions for specific chip operations. Signed-off-by:
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Felix Kaechele authored
Implement reading from the MCU in a more universal fashion. This allows properly handling reads of more than 4 bytes using the AHB FIFO implemented in the chip. Signed-off-by:
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Felix Kaechele authored
Himax uses an AHB-style bus to communicate with different parts of the display driver and touch controller system. Use more descriptive names for the register and address defines. The names were taken from a driver submission for the similar HX83102J chip. Signed-off-by:
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Felix Kaechele authored
Add a compatible string for the Himax HX83100A touch controller. The HX83100A presents touch events on the internal bus rather than offering a dedicated event register like the other chips in this family do. Signed-off-by:
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Dmitry Torokhov authored
Now that the input_dev->vals array is always there we can be assured that input_pass_values() is always called with a non-0 number of events. Remove the check. Reviewed-by:
Jeff LaBundy <jeff@labundy.com> Reviewed-by:
Benjamin Tissoires <bentiss@kernel.org> Link: https://lore.kernel.org/r/20240703213756.3375978-8-dmitry.torokhov@gmail.comSigned-off-by:
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Dmitry Torokhov authored
Preallocate memory for holding event values (input_dev->vals) so that there is no need to check if it was allocated or not in the event processing code. The amount of memory will be adjusted after input device has been fully set up upon registering device with the input core. Reviewed-by:
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Dmitry Torokhov authored
In preparation to have dev->vals memory pre-allocated rearrange code in input_alloc_device() so that it allows handling multiple points of failure. Reviewed-by:
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Dmitry Torokhov authored
Streamline event handling code by providing batch implementations for filtering and event processing and using them in place of the main event handler, as needed, instead of having complex branching logic in the middle of the event processing code. Reviewed-by:
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Dmitry Torokhov authored
In preparation to consolidating filtering and event processing in the input core change events() method to return number of events processed by it. Reviewed-by:
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Dmitry Torokhov authored
Input core expects input handlers to be either filters, or regular handlers, but not both. Additionally, for regular handlers it does not make sense to define both single event method and batch method. Refuse registering handler if it defines more than one method. Reviewed-by:
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Dmitry Torokhov authored
Input core favors ->events() (batch) method over ->event() method if the former is defined, so there is no point in defining evdev_event() as it is never called. Remove it. Reviewed-by:
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Raymond Hackley authored
Imagis IST3038 is another variant of Imagis IST3038 IC, which has a different register interface from IST3038C (possibly firmware defined). Unlike IST3038C/IST3032C, IST3038 has different registers for commands, which means IST3038 doesn't use protocol B. Similar to IST3032C and maybe the other variants, IST3038 has touch keys support, which provides KEY_APPSELECT and KEY_BACK. Add support for IST3038 with touch keys. Signed-off-by:
Raymond Hackley <raymondhackley@protonmail.com> Link: https://lore.kernel.org/r/20240613025631.5425-4-raymondhackley@protonmail.comSigned-off-by:
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Raymond Hackley authored
Imagis IST3038 is a variant of Imagis touchscreen IC. Document it in imagis,ist3038c bindings. Signed-off-by:
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Raymond Hackley authored
protocol_b is a property, which tells Imagis panel to use a different format for coordinates. IST30XXC series is known for using protocol B, while the other series aren't. Note this could be confusing, unlike the model name implies. Adjust the usage of protocol_b to avoid confusion. Signed-off-by:
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Andrew Davis authored
Convert TI-NSPIRE Keypad controller bindings to DT schema. Signed-off-by:
Andrew Davis <afd@ti.com> Reviewed-by:
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Javier Carrasco authored
`mx25_tcq_regconfig` is not modified and can be declared as const to move its data to a read-only section. Signed-off-by:
Javier Carrasco <javier.carrasco.cruz@gmail.com> Link: https://lore.kernel.org/r/20240705-input-const-regmap_config-v1-2-f712a4494883@gmail.comSigned-off-by:
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Javier Carrasco authored
`qt1050_regmap_config` is not modified and can be declared as const to move its data to a read-only section. Signed-off-by:
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- 03 Jul, 2024 2 commits
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Dmitry Torokhov authored
When dealing with byte data use u8 instead of unsigned char or int. Stop layering error handling in cypress_ps2_sendbyte() and simply pass on error code from ps2_sendbyte(). Additionally use u8 instead of unisgned char throughout the code. Link: https://lore.kernel.org/r/20240628224728.2180126-5-dmitry.torokhov@gmail.comSigned-off-by:
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Dmitry Torokhov authored
Do not override errors reported by lower layers with generic "-1", but propagate them to the callers. Change the checks for errors to be in the form of "if (error)" to maintain consistency. Link: https://lore.kernel.org/r/20240628224728.2180126-4-dmitry.torokhov@gmail.comSigned-off-by:
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