linux/drivers/input
Jeff LaBundy 3689abfc4e Input: iqs269a - configure device with a single block write
Unless it is being done as part of servicing a soft reset interrupt,
configuring channels on-the-fly (as is the case when writing to the
ati_trigger attribute) may cause GPIO3 (which reflects the state of
touch for a selected channel) to be inadvertently asserted.

To solve this problem, follow the vendor's recommendation and write
all channel configuration as well as the REDO_ATI register field as
part of a single block write. This ensures the device has been told
to re-calibrate itself following an I2C stop condition, after which
sensing resumes and GPIO3 may be asserted.

Fixes: 04e49867fa ("Input: add support for Azoteq IQS269A")
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Link: https://lore.kernel.org/r/Y7Rs8GyV7g0nF5Yy@nixie71
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2023-01-10 16:56:27 -08:00
..
gameport input: drop empty comment blocks 2022-09-29 16:25:42 -07:00
joystick Merge branch 'next' into for-linus 2022-12-12 10:47:03 -08:00
keyboard treewide: Convert del_timer*() to timer_shutdown*() 2022-12-25 13:38:09 -08:00
misc Input: iqs269a - configure device with a single block write 2023-01-10 16:56:27 -08:00
mouse Linux 6.2-rc3 2023-01-09 20:28:19 -08:00
rmi4 Input: rmi_smbus - Convert to i2c's .probe_new() 2022-12-02 14:53:43 -08:00
serio Linux 6.2-rc3 2023-01-09 20:28:19 -08:00
tablet input: drop empty comment blocks 2022-09-29 16:25:42 -07:00
touchscreen Linux 6.2-rc3 2023-01-09 20:28:19 -08:00
apm-power.c
evbug.c Input: evbug - remove an empty comment block 2021-05-24 21:06:39 -07:00
evdev.c Input: evdev - per-client waitgroups 2020-10-06 18:34:15 -07:00
ff-core.c input: drop empty comment blocks 2022-09-29 16:25:42 -07:00
ff-memless.c input: drop empty comment blocks 2022-09-29 16:25:42 -07:00
input-compat.c
input-compat.h
input-core-private.h Input: deactivate MT slots when inhibiting or suspending devices 2022-07-20 11:35:13 -07:00
input-leds.c
input-mt.c Input: deactivate MT slots when inhibiting or suspending devices 2022-07-20 11:35:13 -07:00
input-poller.c Input: use input_device_enabled() 2020-12-02 22:10:33 -08:00
input-poller.h
input.c Driver Core changes for 6.2-rc1 2022-12-16 03:54:54 -08:00
joydev.c Input: joydev - fix comment typo 2022-09-25 00:57:25 -07:00
Kconfig Input: extract ChromeOS vivaldi physmap show function 2022-03-14 21:11:09 -07:00
Makefile Input: extract ChromeOS vivaldi physmap show function 2022-03-14 21:11:09 -07:00
matrix-keymap.c
mousedev.c
sparse-keymap.c
touchscreen.c Input: touchscreen - avoid bitwise vs logical OR warning 2021-10-15 22:22:54 -07:00
vivaldi-fmap.c Input: extract ChromeOS vivaldi physmap show function 2022-03-14 21:11:09 -07:00