gpio: add driver for PCF857x, PCA{85, 96}7x, and MAX732[89] I2C GPIO expanders
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Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Michael Grzeschik
authored
on 28 May 2019
Sascha Hauer
committed
on 4 Jun 2019