linux-stable.git/drivers/input/touchscreen/goodix.c, branch linux-5.4.y

Input: goodix - add Lenovo Yoga Book X90F to nine_bytes_report DMI table

2023-04-05T09:16:45+00:00

commit 8a0432bab6ea3203d220785da7ab3c7677f70ecb upstream.

The Android Lenovo Yoga Book X90F / X90L uses the same goodix touchscreen
with 9 bytes touch reports for its touch keyboard as the already supported
Windows Lenovo Yoga Book X91F/L, add a DMI match for this to
the nine_bytes_report DMI table.

When the quirk for the X91F/L was initially added it was written to
also apply to the X90F/L but this does not work because the Android
version of the Yoga Book uses completely different DMI strings.
Also adjust the X91F/L quirk to reflect that it only applies to
the X91F/L models.

Signed-off-by: Hans de Goede 
Reviewed-by: Bastien Nocera 
Link: https://lore.kernel.org/r/20230315134442.71787-1-hdegoede@redhat.com
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Greg Kroah-Hartman

Input: goodix - fix spurious key release events

2022-06-06T06:33:48+00:00

commit 24ef83f6e31d20fc121a7cd732b04b498475fca3 upstream.

The goodix panel sends spurious interrupts after a 'finger up' event,
which always cause a timeout.
We were exiting the interrupt handler by reporting touch_num == 0, but
this was still processed as valid and caused the code to use the
uninitialised point_data, creating spurious key release events.

Report an error from the interrupt handler so as to avoid processing
invalid point_data further.

Signed-off-by: Dmitry Mastykin 
Reviewed-by: Bastien Nocera 
Link: https://lore.kernel.org/r/20200316075302.3759-2-dmastykin@astralinux.ru
Signed-off-by: Dmitry Torokhov 
Cc: Fabio Estevam 
Signed-off-by: Greg Kroah-Hartman

Input: goodix - add upside-down quirk for Teclast X98 Pro tablet

2020-12-30T10:51:30+00:00

[ Upstream commit cffdd6d90482316e18d686060a4397902ea04bd2 ]

The touchscreen on the Teclast x98 Pro is also mounted upside-down in
relation to the display orientation.

Signed-off-by: Simon Beginn 
Signed-off-by: Bastien Nocera 
Link: https://lore.kernel.org/r/20201117004253.27A5A27EFD@localhost
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Sasha Levin

Input: goodix - fix touch coordinates on Cube I15-TC

2020-07-22T07:32:58+00:00

[ Upstream commit 1dd5ddc125b4625c3beb8e644ae872445d739bbc ]

The touchscreen on the Cube I15-TC don't match the default display,
with 0,0 touches being reported when touching at the top-right of
the screen.

Add a quirk to invert the x coordinate.

Reported-and-tested-by: Arkadiy 
Signed-off-by: Sergei A. Trusov 
Reviewed-by: Bastien Nocera 
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Sasha Levin

Input: goodix - add upside-down quirk for Teclast X89 tablet

2019-12-13T07:42:42+00:00

commit df5b5e555b356662a5e4a23c6774fdfce8547d54 upstream.

The touchscreen on the Teclast X89 is mounted upside down in relation to
the display orientation (the touchscreen itself is mounted upright, but the
display is mounted upside-down). Add a quirk for this so that we send
coordinates which match the display orientation.

Signed-off-by: Hans de Goede 
Reviewed-by: Bastien Nocera 
Link: https://lore.kernel.org/r/20191202085636.6650-1-hdegoede@redhat.com
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Greg Kroah-Hartman

Input: goodix - add support for 9-bytes reports

2019-10-02T21:13:27+00:00

Some variants of Goodix touchscreen firmwares use 9-bytes finger
report format instead of common 8-bytes format.

This report format may be present as:

struct goodix_contact_data {
        uint8_t unknown1;
        uint8_t track_id;
        uint8_t unknown2;
        uint16_t x;
        uint16_t y;
        uint16_t w;
}__attribute__((packed));

Add support for such format and use it for Lenovo Yoga Book notebook
(which uses a Goodix touchpad as a touch keyboard).

Signed-off-by: Yauhen Kharuzhy 
Signed-off-by: Dmitry Torokhov

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441

2019-06-05T15:37:17+00:00

Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation version 2 of the license

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 315 file(s).

Signed-off-by: Thomas Gleixner 
Reviewed-by: Allison Randal 
Reviewed-by: Armijn Hemel 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531190115.503150771@linutronix.de
Signed-off-by: Greg Kroah-Hartman

Input: goodix - add GT5663 CTP support

2019-04-03T23:10:43+00:00

GT5663 is capacitive touch controller with customized smart
wakeup gestures.

Add support for it by adding compatible and supported chip data.

The chip data on GT5663 is similar to GT1151, like
- config data register has 0x8050 address
- config data register max len is 240
- config data checksum has 16-bit

Signed-off-by: Jagan Teki 
Reviewed-by: Rob Herring 
Signed-off-by: Dmitry Torokhov

Input: goodix - add regulators suppot

2019-04-03T23:10:42+00:00

Goodix CTP controllers require AVDD28, VDDIO regulators for power-on
sequence.

The delay between these regualtor operations as per Power-on Timing
from datasheet[1] is 0 (T1 >= 0 usec).

So, enable and disable these regulators in proper order using normal
regulator functions without any delay in between.

[1] GT5663 Datasheet_English_20151106_Rev.01

Signed-off-by: Jagan Teki 
Reviewed-by: Rob Herring 
Signed-off-by: Dmitry Torokhov

Input: goodix - print values in case of inconsistencies

2019-02-17T07:08:09+00:00

"Invalid config" gives little idea what's wrong. Print the values that
must not be 0 so we know which ones are off.

Signed-off-by: Guido Günther 
Signed-off-by: Dmitry Torokhov