linux-stable.git/drivers/input/serio, branch v4.1.35

Input: i8042 - set up shared ps2_cmd_mutex for AUX ports

2016-08-31T23:21:09+00:00

[ Upstream commit 47af45d684b5f3ae000ad448db02ce4f13f73273 ]

The commit 4097461897df ("Input: i8042 - break load dependency ...")
correctly set up ps2_cmd_mutex pointer for the KBD port but forgot to do
the same for AUX port(s), which results in communication on KBD and AUX
ports to clash with each other.

Fixes: 4097461897df ("Input: i8042 - break load dependency ...")
Reported-by: Bruno Wolff III 
Tested-by: Bruno Wolff III 
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Sasha Levin

Input: i8042 - break load dependency between atkbd/psmouse and i8042

2016-08-20T03:07:58+00:00

[ Upstream commit 4097461897df91041382ff6fcd2bfa7ee6b2448c ]

As explained in 1407814240-4275-1-git-send-email-decui@microsoft.com we
have a hard load dependency between i8042 and atkbd which prevents
keyboard from working on Gen2 Hyper-V VMs.

> hyperv_keyboard invokes serio_interrupt(), which needs a valid serio
> driver like atkbd.c.  atkbd.c depends on libps2.c because it invokes
> ps2_command().  libps2.c depends on i8042.c because it invokes
> i8042_check_port_owner().  As a result, hyperv_keyboard actually
> depends on i8042.c.
>
> For a Generation 2 Hyper-V VM (meaning no i8042 device emulated), if a
> Linux VM (like Arch Linux) happens to configure CONFIG_SERIO_I8042=m
> rather than =y, atkbd.ko can't load because i8042.ko can't load(due to
> no i8042 device emulated) and finally hyperv_keyboard can't work and
> the user can't input: https://bugs.archlinux.org/task/39820
> (Ubuntu/RHEL/SUSE aren't affected since they use CONFIG_SERIO_I8042=y)

To break the dependency we move away from using i8042_check_port_owner()
and instead allow serio port owner specify a mutex that clients should use
to serialize PS/2 command stream.

Reported-by: Mark Laws 
Tested-by: Mark Laws 
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Sasha Levin

Input: i8042 - add Fujitsu Lifebook U745 to the nomux list

2016-02-01T19:54:05+00:00

[ Upstream commit dd0d0d4de582a6a61c032332c91f4f4cb2bab569 ]

Without i8042.nomux=1 the Elantech touch pad is not working at all on
a Fujitsu Lifebook U745. This patch does not seem necessary for all
U745 (maybe because of different BIOS versions?). However, it was
verified that the patch does not break those (see opensuse bug 883192:
https://bugzilla.opensuse.org/show_bug.cgi?id=883192).

Signed-off-by: Aurélien Francillon 
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Sasha Levin

Input: gscps2 - drop pci_ids dependency

2015-04-06T16:38:08+00:00

This driver does not use any PCI IDs, don't include the pci_ids.h header.

Signed-off-by: Michael S. Tsirkin 
Signed-off-by: Dmitry Torokhov

Input: i8042 - allow KBD and AUX ports to wake up from suspend-to-idle

2015-03-10T00:05:31+00:00

While registering serio device for i8042, mark them as wakeup-capable
and check their user space wakeup settings in i8042_pm_suspend() and
i8042_pm_resume() to enable or disable, respectively, their interrupts
to wake up the system.

This makes it possible to use the PC keyboard to wake up the system
from suspend-to-idle, among other things, after writing "enabled" to
the keyboard serio device's power/wakeup sysfs attribute.

Signed-off-by: Rafael J. Wysocki 
Signed-off-by: Dmitry Torokhov

Merge branch 'bfin_rotary' into next

2015-02-16T00:07:18+00:00

Merge bfin_rotary driver changes from Sonic Zhang.

Input: gscps2 - fix MODULE_DEVICE_TABLE invocation

2015-02-04T19:35:54+00:00

The patch "module: fix types of device tables aliases" newly requires
that invocations of

MODULE_DEVICE_TABLE(type, name);

come *after* the definition of `name'.  That is reasonable, but gscps2
wasn't doing this.  Fix it.

Signed-off-by: Geert Uytterhoeven 
Signed-off-by: Dmitry Torokhov

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

2015-02-01T21:16:40+00:00

Pull input layer updates from Dmitry Torokhov:
 "Just a few quirks for PS/2 this time"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: elantech - add more Fujtisu notebooks to force crc_enabled
  Input: i8042 - add noloop quirk for Medion Akoya E7225 (MD98857)
  Input: synaptics - adjust min/max for Lenovo ThinkPad X1 Carbon 2nd

Input: serio - add support for Alwinner A10/A20 PS/2 controller

2015-01-27T07:10:13+00:00

This driver implements support for PS2 controller found on Allwinner A10,
A20 SOCs. It has been tested on A20 Olimex-Lime2 board and also on A10.

Signed-off-by: Vishnu Patekar 
Signed-off-by: Dmitry Torokhov

Input: i8042 - add noloop quirk for Medion Akoya E7225 (MD98857)

2015-01-22T20:11:07+00:00

Without this the aux port does not get detected, and consequently the touchpad
will not work.

With this patch the touchpad is detected:

$ dmesg | grep -E "(SYN|i8042|serio)"
pnp 00:03: Plug and Play ACPI device, IDs SYN1d22 PNP0f13 (active)
i8042: PNP: PS/2 Controller [PNP0303:PS2K,PNP0f13:PS2M] at 0x60,0x64 irq 1,12
serio: i8042 KBD port at 0x60,0x64 irq 1
serio: i8042 AUX port at 0x60,0x64 irq 12
input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input4
psmouse serio1: synaptics: Touchpad model: 1, fw: 8.1, id: 0x1e2b1, caps: 0xd00123/0x840300/0x126800, board id: 2863, fw id: 1473085
input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/input6

dmidecode excerpt for this laptop is:

Handle 0x0001, DMI type 1, 27 bytes
System Information
        Manufacturer: Medion
        Product Name: Akoya E7225
        Version: 1.0

Cc: stable@vger.kernel.org
Signed-off-by: Jochen Hein 
Signed-off-by: Dmitry Torokhov