- 24 Aug, 2024 1 commit
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Dmitry Torokhov authored
Limit amount of data that can be written into an evdev instance at a given time to 4096 bytes (170 input events) to avoid holding evdev->mutex for too long and starving other users. Reviewed-by:
Jeff LaBundy <jeff@labundy.com> Reviewed-by:
Peter Hutterer <peter.hutterer@who-t.net> Link: https://lore.kernel.org/r/Zr5L8TUzkJcB9HcF@google.comSigned-off-by:
Dmitry Torokhov <dmitry.torokhov@gmail.com>
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- 22 Aug, 2024 1 commit
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Dmitry Torokhov authored
The users of this driver were removed in 2013 in commit 28633c54 ("ARM: ux500: Rip out keypad initialisation which is no longer used"). Remove the driver as well. Acked-by:
Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/Zr-gX0dfN4te_8VG@google.comSigned-off-by:
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- 19 Aug, 2024 2 commits
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Cai Huoqing authored
When possible use dev_err_probe help to properly deal with the PROBE_DEFER error, the benefit is that DEFER issue will be logged in the devices_deferred debugfs file. Using dev_err_probe() can reduce code size, and the error value gets printed. Signed-off-by:
Cai Huoqing <caihuoqing@baidu.com> Link: https://lore.kernel.org/r/20210916153148.14045-1-caihuoqing@baidu.comSigned-off-by:
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Frank Li authored
Convert binding doc colibri-vf50-ts.txt to yaml. Additional change: - add ref touchscreen.yaml. - remove standard pinctrl properties. Fix below warning: arch/arm64/boot/dts/freescale/imx8qm-apalis-eval.dtb: /touchscreen: failed to match any schema with compatible: ['toradex,vf50-touchscreen'] Reviewed-by:
Rob Herring (Arm) <robh@kernel.org> Signed-off-by:
Frank Li <Frank.Li@nxp.com> Link: https://lore.kernel.org/r/20240819142434.311760-1-Frank.Li@nxp.comSigned-off-by:
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- 12 Aug, 2024 1 commit
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Frank Li authored
Convert binding doc ad7879.txt to yaml format. Additional change: - Add ref to /schemas/spi/spi-peripheral-props.yaml - Add #gpio-cell - Remove spi-cpol and spi-cpha in example, the place hold 'spi' can't correct detect spi-controler.yaml. So these two properties can't be recongnized. Fix warning: arch/arm64/boot/dts/freescale/imx8dx-colibri-aster.dtb: /bus@5a000000/i2c@5a800000/touchscreen@2c: failed to match any schema with compatible: ['adi,ad7879-1'] Signed-off-by:
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20240810143840.3615450-1-Frank.Li@nxp.comSigned-off-by:
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- 05 Aug, 2024 13 commits
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Dmitry Torokhov authored
The cyttsp4 touchscreen driver was contributed in 2013 and since then has seen no updates. The driver uses platform data (no device tree support) and there are no users of it in the mainline kernel. There were occasional fixes to it for issues either found by static code analysis tools or via visual inspection, but otherwise the driver is completely untested. Remove the driver. Reviewed-by:
Linus Walleij <linus.walleij@linaro.org> Reviewed-by:
Javier Martinez Canillas <javierm@redhat.com> Link: https://lore.kernel.org/r/ZrAZ2cUow_z838tp@google.comSigned-off-by:
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Dmitry Torokhov authored
The driver does not try to power down the rails at system suspend or when touchscreen is not in use, but rather enables regulators at probe time. Power savings are achieved by requesting the controller to enter low power mode. Switch to devm_regulator_bulk_get_enable() instead of separately requesting regulators, enabling them, and installing a custom devm-action to disable them on unbind/remove, which simplifies the code. Reviewed-by:
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Dmitry Torokhov authored
The driver does not use legacy GPIO API, stop including this header. Reviewed-by:
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Dmitry Torokhov authored
The driver does not use legacy GPIO API, stop including this header. Reviewed-by:
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Emanuele Ghidoli authored
Ensure that the touchscreen response has correct "report id" byte before processing the touch data and discard other messages. Fixes: 42370681 ("Input: Add support for ILITEK Lego Series") Signed-off-by:
Emanuele Ghidoli <emanuele.ghidoli@toradex.com> Signed-off-by:
Francesco Dolcini <francesco.dolcini@toradex.com> Link: https://lore.kernel.org/r/20240805085511.43955-3-francesco@dolcini.itSigned-off-by:
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Emanuele Ghidoli authored
For different reasons i2c transaction may fail or report id in the message may be wrong. Avoid closing the frame in this case as it will result in all contacts being dropped, indicating that nothing is touching the screen anymore, while usually it is not the case. Fixes: 42370681 ("Input: Add support for ILITEK Lego Series") Signed-off-by:
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Marge Yang authored
Newer firmware allows to query touchpad resolution information by reading from resolution register. Presence of resolution register is signalled via bit 29 of the "register presence" register. On devices that lack this resolution register we fall back to using pitch and number of receivers data to calculate size of the sensor. Signed-off-by:
Marge Yang <marge.yang@tw.synaptics.com> Signed-off-by:
Vincent Huang <Vincent.Huang@tw.synaptics.com> Link: https://lore.kernel.org/r/20240805083636.1381205-1-marge.yang@tw.synaptics.comSigned-off-by:
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Dmitry Torokhov authored
This makes the code more compact and error handling more robust. Link: https://lore.kernel.org/r/20240711172719.1248373-6-dmitry.torokhov@gmail.comSigned-off-by:
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Dmitry Torokhov authored
Do not mark the device as wakeup-enabled by default, respect the standard "wakeup-source" property. Link: https://lore.kernel.org/r/20240711172719.1248373-5-dmitry.torokhov@gmail.comSigned-off-by:
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Dmitry Torokhov authored
Instead of setting irq_set_irq_wake() directly in probe(), mark the device as wakeup-capable, and use enable_irq_wake() and disable_irq_wake() in suspend/resume path. This also allows changing the wakeup setting dynamically at runtime using /sys/devices/.../tsc2005/power/wakeup. Reviewed-By:
Sebastian Reichel <sre@kernel.org> Link: https://lore.kernel.org/r/20240711172719.1248373-4-dmitry.torokhov@gmail.comSigned-off-by:
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Dmitry Torokhov authored
When the driver has been converted to use gpiod API it was requesting and asserting the reset on probe, but never deasserted it. However because of incorrect annotations in device tree marking reset line as active high whereas in reality it is active low, the end result was that the chip was never reset on probe. With polarity of the reset line now corrected this became a problem. Fix this by calling tsc200x_reset() from tsc200x_probe() to properly complete the reset sequence and move requesting the reset GPIO and VIO supply closer to the point where we need to start talking to the hardware. Fixes: d257f298 ("Input: tsc2005 - convert to gpiod") Link: https://lore.kernel.org/r/20240711172719.1248373-3-dmitry.torokhov@gmail.comSigned-off-by:
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Dmitry Torokhov authored
Instead of hard-coding interrupt trigger rely on ACPI/DT/board code to set it up appropriately. Link: https://lore.kernel.org/r/20240711172719.1248373-2-dmitry.torokhov@gmail.comSigned-off-by:
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Dmitry Torokhov authored
The chip needs to be powered up before calling tsc200x_stop_scan() which communicates with it; move the call to enable the regulator earlier in tsc200x_probe(). At the same time switch to using devm_regulator_get_enable() to simplify error handling. This also makes sure that regulator is not shut off too early when unbinding the driver. Link: https://lore.kernel.org/r/20240711172719.1248373-1-dmitry.torokhov@gmail.comSigned-off-by:
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- 31 Jul, 2024 1 commit
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Rob Herring (Arm) authored
Use of_property_present() to test for property presence rather than of_get_property(). This is part of a larger effort to remove callers of of_get_property() and similar functions. of_get_property() leaks the DT property data pointer which is a problem for dynamically allocated nodes which may be freed. Signed-off-by:
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- 28 Jul, 2024 1 commit
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Christophe JAILLET authored
Use devm_clk_get_prepared() in order to remove a clk_unprepare() in an error handling path of the probe and from the .remove() function. This done, the whole .remove() function can also be axed because 'input_dev' is a managed resource allocated with devm_input_allocate_device() and we can fully rely on devm for cleaning up. Signed-off-by:
Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/062986b0a5105cbc61330da0e55b22c00e2c1c4f.1722062145.git.christophe.jaillet@wanadoo.frSigned-off-by:
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- 24 Jul, 2024 1 commit
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Binbin Zhou authored
This patch introduces a driver for the PixArt PS/2 touchpad, which supports both clickpad and touchpad types. At the same time, we extended the single data packet length to 16, because according to the current PixArt hardware and FW design, we need 11 bytes/15 bytes to represent the complete three-finger/four-finger data. Co-developed-by:
Jon Xie <jon_xie@pixart.com> Signed-off-by:
Jay Lee <jay_lee@pixart.com> Signed-off-by:
Binbin Zhou <zhoubinbin@loongson.cn> Link: https://lore.kernel.org/r/20240704125243.3633569-1-zhoubinbin@loongson.cnSigned-off-by:
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- 19 Jul, 2024 3 commits
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Nikita Travkin authored
Zinitix touch controllers can use some of the sense lines for virtual keys (like those found on many phones). Add support for those keys. Reviewed-by:
Nikita Travkin <nikita@trvn.ru> Link: https://lore.kernel.org/r/20240717-zinitix-tkey-v5-2-52ea4cd4bd50@trvn.ruSigned-off-by:
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Nikita Travkin authored
In some configurations the touch controller can support the touch-keys. Document the linux,keycodes property that enables those keys and specifies the keycodes that should be used to report the key events. Reviewed-by:
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Charles Wang authored
Export a sysfs interface that would allow reading and writing touchscreen IC registers. With this interface many things can be done in usersapce such as firmware updates. An example tool that utilizes this interface for performing firmware updates can be found at [1]. [1] https://github.com/goodix/fwupdate_for_berlin_linuxSigned-off-by:
Charles Wang <charles.goodix@gmail.com> Link: https://lore.kernel.org/r/20240514115135.21410-1-charles.goodix@gmail.comSigned-off-by:
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- 16 Jul, 2024 16 commits
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Jacky Bai authored
Report input event directly on wakeup to ensure no press event is missed when resuming from suspend. Signed-off-by:
Jacky Bai <ping.bai@nxp.com> Reviewed-by:
Peng Fan <peng.fan@nxp.com> Acked-by:
Jason Liu <jason.hui.liu@nxp.com> Signed-off-by:
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Dmitry Torokhov authored
Remove reference to no longer working usbb2k-api-dev@nongnu.org mailing list. Signed-off-by: -
Dmitry Torokhov authored
MCS-5000/5080 chips belong to the 1st generation of Melfas chips, manufactured in 2000-2007. The driver relies on custom platform data (no DT support) and there never were any users of this driver in the mainline kernel. It is likely that the driver was (like mcs5000_ts driver) was tested on S3C6410 NCP board (with Samsung S3C6410 SoC), but the touchkey device was never added to the board file. This board was removed in v6.3 in commit 743c8fbb ("ARM: s3c: remove most s3c64xx board support"). Remove the driver since there are no users. Reviewed-by:
Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20240714060029.1528662-2-dmitry.torokhov@gmail.comSigned-off-by:
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Dmitry Torokhov authored
MCS-5000 belongs to the 1st generation of Melfas chips, manufactured in 2000-2007. The driver relies on custom platform data (no DT support) and there never were any users of this driver in the mainline kernel. The commit adding the driver mentioned that the driver was tested on S3C6410 NCP board (with Samsung S3C6410 SoC) but the touchscreen device was never added to the board file. This board was removed in v6.3 in commit 743c8fbb ("ARM: s3c: remove most s3c64xx board support"). Remove the driver since there are no users. Reviewed-by:
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Dmitry Torokhov authored
Use __free(kfree) cleanup facility when allocating temporary buffers for USB transfers. Reviewed-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/20240712051851.3463657-8-dmitry.torokhov@gmail.comSigned-off-by:
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Dmitry Torokhov authored
This makes the code more compact and error handling more robust. Reviewed-by:
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Dmitry Torokhov authored
Instead of using a single table containing information about various touchscreens and enums to match the driver ID table data with chip information define individual per-protocol instances of usbtouch_device_info structure and reference them directly from the usbtouch_devices ID table. This is simpler, safer, and uses less memory in case some protocols are disabled. Reviewed-by:
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Dmitry Torokhov authored
The data in this table is shared between all instances of the touchscreens so it should not be modified. Reviewed-by:
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Dmitry Torokhov authored
In preparation of splitting big usbtouch_dev_info table into separate per-protocol structures and constifying them move process_pkt() from the device info into main drvice structure and set it up in probe(). We can derive if we should use single- or multi-packet handling based on presence of get_pkt_len() method. Reviewed-by:
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Dmitry Torokhov authored
Move the driver's ID table closer to where it is used in preparation to it using pointers to device info/parameters instead of device type enum. Reviewed-by:
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Dmitry Torokhov authored
There already exists perfectly suitable USB_DEVICE_INTERFACE_CLASS macro, use 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:
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Javier Carrasco authored
Switch to the _scoped() version introduced in commit 365130fd ("device property: Introduce device_for_each_child_node_scoped()") to remove the need for manual calling of fwnode_handle_put() in the paths where the code exits the loop early. In this case the err_fwnode_put label was no longer necessary and the error code is returned directly. Signed-off-by:
Javier Carrasco <javier.carrasco.cruz@gmail.com> Link: https://lore.kernel.org/r/20240412-input_device_for_each_child_node_scoped-v1-6-dbad1bc7ea84@gmail.comSigned-off-by:
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Javier Carrasco authored
Switch to the _scoped() version introduced in commit 365130fd ("device property: Introduce device_for_each_child_node_scoped()") to remove the need for manual calling of fwnode_handle_put() in the paths where the code exits the loop early. Signed-off-by:
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Javier Carrasco authored
Switch to the _scoped() version introduced in commit 365130fd ("device property: Introduce device_for_each_child_node_scoped()") to remove the need for manual calling of fwnode_handle_put() in the paths where the code exits the loop early. Signed-off-by:
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Javier Carrasco authored
Switch to the _scoped() version introduced in commit 365130fd ("device property: Introduce device_for_each_child_node_scoped()") to remove the need for manual calling of fwnode_handle_put() in the paths where the code exits the loop early. Signed-off-by:
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