tree 52a88638b8f32c6a88e4e5f3eaba6cc52949a498
parent 65053e1a7743e282c3dd08d3d435ac8b746f5359
author Phil Reid <preid@electromag.com.au> 1469763595 +0800
committer Linus Walleij <linus.walleij@linaro.org> 1470903237 +0200

gpio: pca954x: Add vcc regulator and enable it

Some i2c gpio devices are connected to a switchable power supply
which needs to be enabled prior to probing the device. This patch
allows the drive to enable the devices vcc regulator prior to probing.

Signed-off-by: Phil Reid <preid@electromag.com.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>