This allows getting rid of the ngpios property, which is implicit in the
part number. It also prepares for configuring pins as open-drain on
supporting chips in the next commit.
Signed-off-by: Armin Brauns <armin.brauns@embedded-solutions.at>
Update gpio drivers to use DT_HAS_<compat>_ENABLED Kconfig symbol
to expose the driver and enable it by default based on devicetree.
We remove 'depend on' Kconfig for symbols that would be implied by
the devicetree node existing.
Signed-off-by: Kumar Gala <galak@kernel.org>
Refactor the mcp230xx driver to generically also support
SPI IO expanders, renaming it to mcp23xxx in the process.
Signed-off-by: Peter Johanson <peter@peterjohanson.com>
Armin Brauns