Input: synaptics-rmi4 - add support for querying DPM value (F12)

Browse source

Newer firmware allows to query touchpad resolution information by
reading from resolution register. Presence of resolution register is
signalled via bit 29 of the "register presence" register. On devices
that lack this resolution register we fall back to using pitch and
number of receivers data to calculate size of the sensor.

Signed-off-by: Marge Yang <marge.yang@tw.synaptics.com>
Signed-off-by: Vincent Huang <Vincent.Huang@tw.synaptics.com>
Link: https://lore.kernel.org/r/20240805083636.1381205-1-marge.yang@tw.synaptics.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

...

This commit is contained in:

Marge Yang 2024-08-05 07:30:55 -07:00 • committed by Dmitry Torokhov

parent 63f92f1138

commit 14d650fcb7

1 changed files with 34 additions and 10 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

46

drivers/input/rmi4/rmi_f12.c

View file