linux-toradex.git/drivers/input/serio, branch v3.18.4

Input: I8042 - add Acer Aspire 7738 to the nomux list

2015-01-27T16:29:44+00:00

commit 9333caeaeae4f831054e0e127a6ed3948b604d3e upstream.

When KBC is in active multiplexing mode the touchpad on this laptop does
not work.

Reported-by: Bilal Koc 
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Greg Kroah-Hartman

Input: i8042 - reset keyboard to fix Elantech touchpad detection

2015-01-27T16:29:43+00:00

commit 148e9a711e034e06310a8c36b64957934ebe30f2 upstream.

On some laptops, keyboard needs to be reset in order to successfully detect
touchpad (e.g., some Gigabyte laptop models with Elantech touchpads).
Without resettin keyboard touchpad pretends to be completely dead.

Based on the original patch by Mateusz Jończyk this version has been
expanded to include DMI based detection & application of the fix
automatically on the affected models of laptops. This has been confirmed to
fix problem by three users already on three different models of laptops.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=81331
Signed-off-by: Srihari Vijayaraghavan 
Acked-by: Mateusz Jończyk 
Tested-by: Srihari Vijayaraghavan 
Tested by: Zakariya Dehlawi 
Tested-by: Guillaum Bouchard 
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Greg Kroah-Hartman

Revert "Input: i8042 - disable active multiplexing by default"

2014-10-31T16:35:53+00:00

This reverts commit 68da166491655bc54051bf04c78ce648e2e33508.

It turns out that the assertion about scope of regressions due to
always keeping keyboard controller in legacy mode was proven wrong.
There are laptops, such as Clevo W650SH, that only have internal
touchpad (no external PS/2 ports), that require active multiplexing
mode to switch the touchpad (Elantech) into native mode instead of
basic PS/2 emulation.

Reported-by: Roel Aaij 
Signed-off-by: Dmitry Torokhov

Input: altera_ps2 - use correct type for irq return value

2014-10-31T16:32:02+00:00

The irq function altera_ps2_rxint returns an irqreturn_t, so use the
same type for variable storing the return value.

Signed-off-by: Tobias Klauser 
Signed-off-by: Dmitry Torokhov

Input: altera_ps2 - write to correct register when disabling interrupts

2014-10-31T16:31:57+00:00

In altera_ps2_close, the data register (offset 0) is written instead of
the control register (offset 4), leading to the RX interrupt not being
disabled. Fix this by calling writel() with the offset for the proper
register.

Signed-off-by: Tobias Klauser 
Signed-off-by: Dmitry Torokhov

Input: i8042 - quirks for Fujitsu Lifebook A544 and Lifebook AH544

2014-10-24T21:56:55+00:00

These models need i8042.notimeout, otherwise the touchpad will not work.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=69731
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1111138
Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede 
Signed-off-by: Dmitry Torokhov

Input: i8042 - disable active multiplexing by default

2014-10-11T18:34:43+00:00

Active multiplexing is a nice feature as it allows several pointing devices
(such as touchpad and external mouse) use their native protocols at the
same time. Unfortunately many manufacturers do not implement the feature
properly even though they advertise it. The problematic implementations are
never fixed, since Windows by default does not use this mode, and move from
one BIOS/model of laptop to another. When active multiplexing is broken
turning it on usually results in touchpad, keyboard, or both unresponsive.

With PS/2 usage on decline (most of PS/2 devices in use nowadays are
internal laptop touchpads), I expect number of users who have laptops with
working MUX implementation, docking stations with external PS/2 ports, and
who are still using external PS/2 mice, to be rather small. Let's flip the
default to be OFF and allow activating it through i8042.nomux=0 kernel
option.  We'll also keep DMI table where we can record known good models.

Acked-by: Jiri Kosina 
Acked-by: Hans de Goede 
Signed-off-by: Dmitry Torokhov

Input: i8042 - add noloop quirk for Asus X750LN

2014-10-11T18:34:42+00:00

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

https://bugzilla.redhat.com/show_bug.cgi?id=1110011

Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede 
Signed-off-by: Dmitry Torokhov

Merge tag 'v3.17' into next

2014-10-11T18:34:07+00:00

Synchronize with mainline to bring in changes to Synaptics and i8042
drivers.

Input: serio - avoid negative serio device numbers

2014-10-09T22:27:25+00:00

Fix the format string for serio device name generation to avoid negative
device numbers when the id exceeds the maximum signed integer value.

Signed-off-by: Richard Leitner 
Signed-off-by: Dmitry Torokhov