Implement an option manual reset of the PCAL64XXA to allow the external
implementation of a retention of the port expander state.
Signed-off-by: Benedikt Schmidt <benedikt.schmidt@embedded-solutions.at>
Extract method which applies the initial state in the driver
for the port expander PCAL64XXA.
Signed-off-by: Benedikt Schmidt <benedikt.schmidt@embedded-solutions.at>
In function pcal64xxa_process_input, lock was not released in case of
error when calling inputs_read.
This was causing an infinite wait in the following calls of functions
using I2C bus.
Signed-off-by: Vincent Geneves <vgeneves@kalray.eu>
Convert the internal uint16_t data of the driver to an internal type
that automatically switches from uint8_t to uint16_t depending on
whether any 16 bit device is present in the system or not. This shrinks
the internal structures by few bytes when the extra data is not needed.
Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>
Generalize the driver for PCAL6408A into a more abstract base
and reuse this abstraction to implement a driver for
PCAL6416A.
Signed-off-by: Benedikt Schmidt <benedikt.schmidt@embedded-solutions.at>
