Add support for the I2C-connected Awinic AW86938 LRA haptic controller.
The AW86938 has a similar but slightly different register layout. In
particular, the boost mode register values.
The AW86938 also has some extra features that aren't implemented
in this driver yet.
Signed-off-by: Griffin Kroah-Hartman <griffin.kroah@fairphone.com>
Link: https://patch.msgid.link/20260302-aw86938-driver-v4-3-92c865df9cca@fairphone.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Previously the gain value was hardcoded. Take the magnitude passed via
the input API and configure the gain register accordingly.
Signed-off-by: Griffin Kroah-Hartman <griffin.kroah@fairphone.com>
Link: https://patch.msgid.link/20260302-aw86938-driver-v4-1-92c865df9cca@fairphone.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add support for the I2C-connected Awinic AW86927 LRA haptic driver.
This driver includes a hardcoded sine waveform to be uploaded to the
AW86927's SRAM for haptic playback.
This driver does not currently support all the capabilities of the
AW86927, such as F0 calibration, RTP mode, and CONT mode.
Signed-off-by: Griffin Kroah-Hartman <griffin.kroah@fairphone.com>
Link: https://lore.kernel.org/r/20250925-aw86927-v3-2-1fc6265b42de@fairphone.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
