tree dd51bedcd86e887b44d85b79b9d506a79599af0f
parent 9a9fe01ecf68c9b100499908122944597c63f21f
author Nicolas Ferre <nicolas.ferre@atmel.com> 1279646331 +0200
committer Nicolas Ferre <nicolas.ferre@atmel.com> 1330605530 +0100

ARM: at91/pio: add new PIO3 features

This patch adds the support for new PIO controller found on some
at91sam SOCs.
- more peripheral multiplexing
- more features to configure on a PIO (pull-down, Schmitt trigger, debouncer)
- support for several IRQ triggering features (type and polarity)

Support for those new features are retrieved from the device tree
compatibility string.

Debugfs at91_gpio file is updated to monitor configuration.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>