AXP192 is a small power management IC, that also
features 5 GPIOS.
Besides GPIO driver this commit also includes needed modifications
in axp192 regulator and mfd driver as LDOIO0 functioanlity
is multiplexed with GPIO0 pin.
Signed-off-by: Martin Kiepfer <mrmarteng@teleschirm.org>
Add the BD8LB600FS to the build all tests,
as well as add another specific test for just
this chip which also demonstrates the
usage.
Signed-off-by: Benedikt Schmidt <benedikt.schmidt@embedded-solutions.at>
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>
The Texas Instruments TCA9538 is an 8 pin GPIO port expander.
It operates on an I2C bus with 2 configurable address pins. The
device has an interrupt output pin that is asserted when any pin
configured as an input changes state.
Added under the PCA953X name to allow other similar parts to
use the same driver.
Signed-off-by: Kieran Mackey <kieran.mackey@lairdconnect.com>
