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3 Commits

Author SHA1 Message Date
Fabio Estevam
7ebc194d0f gpio: 74x164: Introduce 'enable-gpios' property 
74HC595 has an /OE (output enable) pin that can be controlled by a GPIO.

Introduce an optional property called 'enable-gpios' that allows
controlling the /OE pin.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
 2017-08-14 16:24:02 +02:00
Nicolas Saenz Julienne
80018bd9cb gpio: 74x164: add dt support for nxp's 74x594 
The chip is also an 8 bit shift register which works out of the box as a GPO
expander with this patch

Signed-off-by: Nicolas Saenz Julienne <nicolassaenzj@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
 2016-03-31 10:25:51 +02:00
Maxime Ripard
a7ff477bb7 gpio: 74x164: dts: Add documentation for the dt binding 
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
 2012-09-11 19:21:34 +02:00