tree 2677387492b60fd5c6a42a317bde0e7e965aa8fa
parent 0a7439ef755d46a2e61d460d7a440f7fa65d7182
author Linus Walleij <linus.walleij@linaro.org> 1455284903 +0100
committer Linus Walleij <linus.walleij@linaro.org> 1455871721 +0100

gpio: store reflect the label to userspace

The gpio_chip label is useful for userspace to understand what
kind of GPIO chip it is dealing with. Let's store a copy of this
label in the gpio_device, add it to the struct passed to userspace
for GPIO_GET_CHIPINFO_IOCTL and modify lsgpio to show it.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>