- 20 Jan, 2021 1 commit
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Lee Jones authored
Fixes the following W=1 kernel build warning(s): drivers/input/mouse/synaptics.c: In function ‘synaptics_process_packet’: drivers/input/mouse/synaptics.c:1110:6: warning: suggest braces around empty body in an ‘if’ statement [-Wempty-body] Signed-off-by:
Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20210114152323.2382283-2-lee.jones@linaro.orgSigned-off-by:
Dmitry Torokhov <dmitry.torokhov@gmail.com>
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- 11 Jan, 2021 6 commits
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Tony Lindgren authored
We are still missing handling for errata i689 related issues for the case where we never see a key up interrupt for the last pressed key. To fix the issue, we must scan the key state again after the keyboard controller has idled to check if a key up event was missed. This is described in the omap4 silicon errata documentation for Errata ID i689 "1.32 Keyboard Key Up Event Can Be Missed": "When a key is released for a time shorter than the debounce time, in-between 2 key press (KP1 and KP2), the keyboard state machine will go to idle mode and will never detect the key release (after KP1, and also after KP2), and thus will never generate a new IRQ indicating the key release." We can use PM runtime autosuspend features to check the keyboard state after it enters idle. Signed-off-by:
Tony Lindgren <tony@atomide.com> Link: https://lore.kernel.org/r/X/vrygoBxzGyXhfc@atomide.comSigned-off-by:
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Tony Lindgren authored
Implement PM runtime autosuspend support to prepare for adding handling to clear stuck last pressed key in the following patches. The hardware has support for autoidle and can wake up to keypress events. Let's also update omap4_keypad_probe() to use dev instead of &pdev->dev since we already have it from the earlier changes. Signed-off-by:
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Tony Lindgren authored
Let's move rest of the key scanning code to omap4_keypad_scan_keys(). We will use omap4_keypad_scan_keys() also for implementing errata handling to clear the stuck last key in the following patch. Signed-off-by:
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Tony Lindgren authored
Because of errata i689 the keyboard can idle with state where no key up interrupts are seen until after the next key press. This means we need to first check for any lost key up events before scanning for new down events. For example, rapidly pressing shift-shift-j can sometimes produce a J instead of j. Let's fix the issue by scanning the keyboard in two phases. First we scan for any key up events that we may have missed, and then we scan for key down events. Let's also simplify things with for_each_set_bit() as suggested by Dmitry Torokhov <dmitry.torokhov@gmail.com>. Signed-off-by:
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Tony Lindgren authored
We are not using the long events and they produce extra interrupts. Let's not enable them at all. Note that also the v3.0.8 Linux Android kernel has long interrupts disabled. Signed-off-by:
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Dmitry Torokhov authored
Now that input core supports devres-managed input devices we can clean up this driver a bit. Link: https://lore.kernel.org/r/X/qfJKiM21uyksYl@google.comTested-by:
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- 18 Dec, 2020 2 commits
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Dmitry Torokhov authored
devm_platform_ioremap_resource() depends on CONFIG_HAS_IOMEM, so let's add it to the dependencies when COMPILE_TEST is enabled. Reported-by:
kernel test robot <lkp@intel.com> Fixes: c8834032 ("Input: imx_keypad - add COMPILE_TEST support") Link: https://lore.kernel.org/r/X9llpA3w1zlZCHXU@google.comSigned-off-by:
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Dmitry Torokhov authored
The OF match table is only used when OF is enabled. Fixes: cd3f6098 ("Input: new da7280 haptic driver") Reported-by:
Roy Im <roy.im.opensource@diasemi.com> Link: https://lore.kernel.org/r/X9xRLVPt9eBi0CT6@google.comSigned-off-by:
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- 16 Dec, 2020 2 commits
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jeffrey.lin authored
Add default write command package to prevent i2c quirk error of zero data length as Raydium touch firmware update is executed. Signed-off-by:
jeffrey.lin <jeffrey.lin@rad-ic.com> Link: https://lore.kernel.org/r/1608031217-7247-1-git-send-email-jeffrey.lin@raydium.corp-partner.google.com Cc: stable@vger.kernel.org Signed-off-by:
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Dmitry Torokhov authored
An "if" testing for error condition has accidentally been dropped from the code. Reported-by:
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- 14 Dec, 2020 2 commits
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Colin Ian King authored
There is a spelling mistake in a dev_err message. Fix it. Signed-off-by:
Colin Ian King <colin.king@canonical.com> Link: https://lore.kernel.org/r/20201214223109.82924-1-colin.king@canonical.comSigned-off-by:
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Arnd Bergmann authored
gcc -Warray-bounds warns about a serious bug in cyapa_pip_retrieve_data_structure: drivers/input/mouse/cyapa_gen6.c: In function 'cyapa_pip_retrieve_data_structure.constprop': include/linux/unaligned/access_ok.h:40:17: warning: array subscript -1 is outside array bounds of 'struct retrieve_data_struct_cmd[1]' [-Warray-bounds] 40 | *((__le16 *)p) = cpu_to_le16(val); drivers/input/mouse/cyapa_gen6.c:569:13: note: while referencing 'cmd' 569 | } __packed cmd; | ^~~ Apparently the '-2' was added to the pointer instead of the value, writing garbage into the stack next to this variable. Fixes: c2c06c41 ("Input: cyapa - add gen6 device module support") Signed-off-by:Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20201026161332.3708389-1-arnd@kernel.org Cc: stable@vger.kernel.org Signed-off-by:
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- 12 Dec, 2020 4 commits
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Nemo Han authored
Add new compatible strings and match data to support sc2730 and sc2721 which are two varieties of SC27XX family. Signed-off-by:
Nemo Han <nemo.han@unisoc.com> Signed-off-by:
Chunyan Zhang <chunyan.zhang@unisoc.com> Link: https://lore.kernel.org/r/20201117034949.47877-2-zhang.lyra@gmail.comSigned-off-by:
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Chunyan Zhang authored
Add new compatible strings to support sc2730 and sc2721 which are two varieties of SC27XX family. Signed-off-by:
Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20201117034949.47877-4-zhang.lyra@gmail.comSigned-off-by:
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Chunyan Zhang authored
Convert the sprd sc27xx vibrator binding to DT schema using json-schema. Signed-off-by:
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Stefan Riedmueller authored
Make use of generic touchscreen_properties structure to add axis inversion and swapping capabilities. It's configurable via devicetree properties: touchscreen-inverted-x touchscreen-inverted-y touchscreen-swapped-x-y Signed-off-by:
Stefan Riedmueller <s.riedmueller@phytec.de> Link: https://lore.kernel.org/r/20200922093903.157232-1-s.riedmueller@phytec.deSigned-off-by:
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- 11 Dec, 2020 16 commits
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Dmitry Torokhov authored
If device is set up as a wakeup source, I2C core configures the interrupt line as wake IRQ and PM core automatically configures it for waking up the system on system suspend transition, so we do not have to explicitly call enable_irq_wake() and disable_irq_wake() in suspend/resume. Link: https://lore.kernel.org/r/20201120073920.3214492-2-dmitry.torokhov@gmail.comSigned-off-by:
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Dmitry Torokhov authored
We should not be configuring the controller as a wakeup source in the driver, but rather rely on I2C core to mark it as such by either instantiating as I2C_CLIENT_WAKEUP or specifying "wakeup-source" device property. Link: https://lore.kernel.org/r/20201120073920.3214492-1-dmitry.torokhov@gmail.comSigned-off-by:
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Zheng Yongjun authored
Replace a comma between expression statements by a semicolon. Signed-off-by:
Zheng Yongjun <zhengyongjun3@huawei.com> Link: https://lore.kernel.org/r/20201211085032.2598-1-zhengyongjun3@huawei.comSigned-off-by:
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Zheng Yongjun authored
Replace a comma between expression statements by a semicolon. Signed-off-by:
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Roy Im authored
Adds support for the Dialog DA7280 LRA/ERM Haptic Driver with multiple mode and integrated waveform memory and wideband support. It communicates via an I2C bus to the device. Signed-off-by:
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Roy Im authored
Add device tree binding information for DA7280 haptic driver. Example bindings for DA7280 are added. Signed-off-by:
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Roy Im authored
This patch adds the da7280 bindings doc and driver to the Dialog Semiconductor support list. Signed-off-by:
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jingle.wu authored
There are some version of Elan trackpads that send incorrect data when in SMbus mode, unless they are switched to use 0x5f reports instead of standard 0x5e. This patch implements querying device to retrieve chips identifying data, and switching it, when needed to the alternative report. Signed-off-by:
Jingle Wu <jingle.wu@emc.com.tw> Link: https://lore.kernel.org/r/20201211071531.32413-1-jingle.wu@emc.com.twSigned-off-by:
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Jingle Wu authored
The 0x5F is a new trackpoint report type used by some modules. Signed-off-by:
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Michał Mirosław authored
Add information found in downstream kernels, to make the code less magic. Signed-off-by:
Michał Mirosław <mirq-linux@rere.qmqm.pl> Reviewed-by:
Dmitry Osipenko <digetx@gmail.com> Tested-by:
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Zheng Yongjun authored
Simplify the return expression. Signed-off-by:
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Anson Huang authored
Add COMPILE_TEST support to imx_keypad driver for better compile testing coverage. Signed-off-by:
Anson Huang <Anson.Huang@nxp.com> Link: https://lore.kernel.org/r/1583137573-16628-1-git-send-email-Anson.Huang@nxp.comSigned-off-by:
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Sergiu Cuciurean authored
In a recent change to the SPI subsystem [1], a new `delay` struct was added to replace the `delay_usecs`. This change replaces the current `delay_usecs` with `delay` for this driver. The `spi_transfer_delay_exec()` function [in the SPI framework] makes sure that both `delay_usecs` & `delay` are used (in this order to preserve backwards compatibility). [1] commit bebcfd27 ("spi: introduce `delay` field for `spi_transfer` + spi_transfer_delay_exec()") Signed-off-by:
Sergiu Cuciurean <sergiu.cuciurean@analog.com> Tested-by:
Ronald Tschalär <ronald@innovation.ch> Reviewed-by:
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Sergiu Cuciurean authored
In a recent change to the SPI subsystem [1], a new `delay` struct was added to replace the `delay_usecs`. This change replaces the current `delay_usecs` with `delay` for this driver. The `spi_transfer_delay_exec()` function [in the SPI framework] makes sure that both `delay_usecs` & `delay` are used (in this order to preserve backwards compatibility). [1] commit bebcfd27 ("spi: introduce `delay` field for `spi_transfer` + spi_transfer_delay_exec()") Signed-off-by:
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Sergiu Cuciurean authored
In a recent change to the SPI subsystem [1], a new `delay` struct was added to replace the `delay_usecs`. This change replaces the current `delay_usecs` with `delay` for this driver. The `spi_transfer_delay_exec()` function [in the SPI framework] makes sure that both `delay_usecs` & `delay` are used (in this order to preserve backwards compatibility). [1] commit bebcfd27 ("spi: introduce `delay` field for `spi_transfer` + spi_transfer_delay_exec()") Signed-off-by:
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Dmitry Torokhov authored
Instead of special-casing retrieval of number of X/Y electrodes based on the firmware, let's select default values and mark registers as non-existent on firmwares that do not support this operation. Also mark "report rate" register as non-existent for generic firmwares as having it set to 0 does not make sense. Reviewed-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by:
Marco Felsch <m.felsch@pengutronix.de> Reviewed-by:
Simon Budig <simon.budig@kernelconcepts.de> Link: https://lore.kernel.org/r/X9FZFs3NZADoIhhH@google.comSigned-off-by:
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- 10 Dec, 2020 7 commits
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Stephan Gerhold authored
The Samsung touchkey controllers are often used with external pull-up for the interrupt line and the I2C lines, so we might need to enable a regulator to bring the lines into usable state. Otherwise, this might cause spurious interrupts and reading from I2C will fail. Implement support for a "vddio-supply" that is enabled by the tm2-touchkey driver so that the regulator gets enabled when needed. Signed-off-by:
Stephan Gerhold <stephan@gerhold.net> Reviewed-by:
Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20201203131242.44397-3-stephan@gerhold.netSigned-off-by:
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Stephan Gerhold authored
The Samsung touchkey controllers are often used with external pull-up for the interrupt line and the I2C lines, so we might need to enable a regulator to bring the lines into usable state. Otherwise, this might cause spurious interrupts and reading from I2C will fail. Document support for a "vddio-supply" that is enabled by the tm2-touchkey driver so that the regulator gets enabled when needed. Signed-off-by:
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Stephan Gerhold authored
Convert the device tree bindings for tm2-touchkey to the YAML format. While we're at it, clarify the descriptions a bit to make it clear that this driver can be used for many different MCUs that all implement a similar I2C protocol. Depending on the MCU the voltage requirements may be different, on some devices the controller uses 2.2V, 2.8V or even 3.3V for vcc-supply instead of 1.8V. Signed-off-by:
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Fuqian Huang authored
devm_add_action_or_reset() is introduced as a helper function which internally calls devm_add_action(). If devm_add_action() fails then it will execute the action mentioned and return the error code. This reduce source code size (avoid writing the action twice) and reduce the likelyhood of bugs. Signed-off-by:
Fuqian Huang <huangfq.daxian@gmail.com> Link: https://lore.kernel.org/linux-input/20190708123323.11943-1-huangfq.daxian@gmail.comSigned-off-by:
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Lubomir Rintel authored
This adds support for the power button attached to the Embedded Controller on a Dell Wyse 3020 "Ariel" board. The Embedded Controller's SPI interface is actually capable sending and receiving the PS/2 keyboard and mouse protocol data, which looks like a good fit for a serio driver. Howerver, I don't know of any machines where this is actually used. My board only has a single power button and no way to connect an actual keyboard or a mouse. Using the atkbd driver with serio would be an overkill and would be inconvenient for the userspace. Therefore this driver registers an input device that is only capable of reporting the power button presses and releases. Signed-off-by:
Lubomir Rintel <lkundrak@v3.sk> Link: https://lore.kernel.org/r/20201201083533.1724287-3-lkundrak@v3.skSigned-off-by:
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Lubomir Rintel authored
Add binding document for the Dell Wyse 3020 a.k.a. "Ariel" Power Button. Signed-off-by:
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Dmitry Torokhov authored
The driver has its own HID descriptor parsing code, that had and still has several issues discovered by syzbot and other tools. Ideally we should move the driver over to the HID subsystem, so that it uses proven parsing code. However the devices in question are EOL, and GTCO is not willing to extend resources for that, so let's simply remove the driver. Note that our HID support has greatly improved over the last 10 years, we may also consider reverting 6f8d9e26 ("hid-core.c: Adds all GTCO CalComp Digitizers and InterWrite School Products to blacklist") and see if GTCO devices actually work with normal HID drivers. Link: https://lore.kernel.org/r/X8wbBtO5KidME17K@google.comSigned-off-by:
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