tree 6d049a51b30cc52d1e92e9d8acbb1bd539abc901
parent 4dc391e5ba8967623a77e7c6815bc2030a760dbb
author Nathan Barrett-Morrison <nathan.morrison@timesys.com> 1740591026 -0500
committer Tom Rini <trini@konsulko.com> 1741796698 -0600

gpio: Add support for ADI ADP5588 GPIO expander chips

This adds support for the ADP588 GPIO expander from Analog Devices. It
is accessed over I2C and provides up to 18 pins. It is largely a port of
the Linux driver developed by Michael Hennerich
<michael.hennerich@analog.com>

Signed-off-by: Ian Roberts <ian.roberts@timesys.com>
Signed-off-by: Greg Malysa <malysagreg@gmail.com>
Signed-off-by: Vasileios Bimpikas <vasileios.bimpikas@analog.com>
Signed-off-by: Utsav Agarwal <utsav.agarwal@analog.com>
Signed-off-by: Arturs Artamonovs <arturs.artamonovs@analog.com>
Signed-off-by: Oliver Gaskell <Oliver.Gaskell@analog.com>
Signed-off-by: Nathan Barrett-Morrison <nathan.morrison@timesys.com>