linux-stable.git/drivers/input/serio, branch v6.5.3

Input: i8042 - add quirk for TUXEDO Gemini 17 Gen1/Clevo PD70PN

2023-09-13T07:52:57+00:00

commit eb09074bdb05ffd6bfe77f8b4a41b76ef78c997b upstream.

The touchpad of this device is both connected via PS/2 and i2c. This causes
strange behavior when both driver fight for control. The easy fix is to
prevent the PS/2 driver from accessing the mouse port as the full feature
set of the touchpad is only supported in the i2c interface anyway.

The strange behavior in this case is, that when an external screen is
connected and the notebook is closed, the pointer on the external screen is
moving to the lower right corner. When the notebook is opened again, this
movement stops, but the touchpad clicks are unresponsive afterwards until
reboot.

Signed-off-by: Werner Sembach 
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230607173331.851192-1-wse@tuxedocomputers.com
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Greg Kroah-Hartman

Merge branch 'next' into for-linus

2023-06-26T22:18:13+00:00

Prepare input updates for 6.5 merge window.

Input: add HAS_IOPORT dependencies

2023-05-22T22:17:09+00:00

In a future patch HAS_IOPORT=n will result in inb()/outb() and friends
not being declared. We thus need to add HAS_IOPORT as dependency for
those drivers using them.

Co-developed-by: Arnd Bergmann 
Signed-off-by: Arnd Bergmann 
Signed-off-by: Niklas Schnelle 
Link: https://lore.kernel.org/r/20230522105049.1467313-16-schnelle@linux.ibm.com
Signed-off-by: Dmitry Torokhov

Input: libps2 - do not discard non-ack bytes when controlling LEDs

2023-05-18T18:40:32+00:00

Upon receiving a PS/2 command the device and controller are supposed to
stop sending normal data (scancodes or movement packets) and instead
immediately start delivering ACK/NAK and command response. Unfortunately
often EC has an output buffer which may contain latched data by the time
the EC receives a command from the host. The kernel used to ignore such
data, but that may cause "stuck" keys if the data dropped happens to be a
break code or a part of a break code. This occasionally happens, for
example, on Chromebooks when the kernel tries to toggle CapsLock LED on
a keyboard while user releases Alt+Search keyboard shortcut.

Fix this by passing the first non-ACK byte to the normal handler for a
handful of PS/2 commands that are expected to be used during normal device
operation (as opposed to probe/configuration time).

Reviewed-by: Raul E Rangel 
Link: https://lore.kernel.org/r/20230511185252.386941-8-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov

Input: libps2 - introduce common interrupt handler

2023-05-18T18:40:32+00:00

Instead of exposing inner workings of libps2 to drivers such as atkbd and
psmouse, have them define pre-receive and receive callbacks, and provide a
common handler that can be used with underlying serio port.

While at this add kerneldoc to the module.

Link: https://lore.kernel.org/r/ZGK81cxqjr/KS1kA@google.com
Signed-off-by: Dmitry Torokhov

Input: libps2 - fix aborting PS/2 commands

2023-05-18T18:40:32+00:00

When aborting PS/2 command the kernel should [re]set all flags before
waking up waiters, otherwise waiting thread may read obsolete values
of flags.

Reported-by: Raul Rangel 
Reviewed-by: Raul E Rangel 
Link: https://lore.kernel.org/r/20230511185252.386941-6-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov

Input: libps2 - fix NAK handling

2023-05-18T18:40:32+00:00

Do not try to process "resend" or "reject" responses from the device
as normal response data for a command.

Reviewed-by: Raul E Rangel 
Link: https://lore.kernel.org/r/20230511185252.386941-5-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov

Input: libps2 - rework handling of command response

2023-05-18T18:40:32+00:00

It is not entirely correct that libps2 sets PS2_FLAG_CMD1 after
the device acknowledges each byte sent to the device by the host.
Rework the code so that PS2_FLAG_CMD1 and PS2_FLAG_CMD are set only once,
at the beginning of PS/2 command execution.

Reviewed-by: Raul E Rangel 
Link: https://lore.kernel.org/r/20230511185252.386941-4-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov

Input: libps2 - remove special handling of ACK for command byte

2023-05-18T18:40:32+00:00

When getting unexpected data while waiting for an acknowledgement it does
not matter what command phase is currently executed, and ps2_handle_ack()
should indicate that no further processing is needed for the received data
byte. Remove PS2_FLAG_ACK_CMD and associated handling.

Note that while it is possible to make ps2_handle_ack (and
ps2_handle_repsonse) return void, it will be done when the code will be
converted to common PS/2 interrupt handler later.

Reviewed-by: Raul E Rangel 
Link: https://lore.kernel.org/r/20230511185252.386941-3-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov

Input: libps2 - attach ps2dev instances as serio port's drvdata

2023-05-18T18:40:32+00:00

In preparation of having unified interrupt handler for PS/2 devices,
instead of attaching instances of psmouse and atkbd structures as serio's
driver data, switch to attaching ps2dev instances.

Reviewed-by: Raul Rangel 
Link: https://lore.kernel.org/r/20230511185252.386941-2-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov