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authorNicolas Ferre <nicolas.ferre@atmel.com>2010-07-20 19:18:51 +0200
committerNicolas Ferre <nicolas.ferre@atmel.com>2012-03-01 13:38:50 +0100
commit582d5fbd4e81e7debe5f3a0e6ce1a0bcdf636c6e (patch)
treedd51bedcd86e887b44d85b79b9d506a79599af0f /Documentation
parent9a9fe01ecf68c9b100499908122944597c63f21f (diff)
downloadop-kernel-dev-582d5fbd4e81e7debe5f3a0e6ce1a0bcdf636c6e.zip
op-kernel-dev-582d5fbd4e81e7debe5f3a0e6ce1a0bcdf636c6e.tar.gz
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>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/gpio/gpio_atmel.txt2
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/gpio/gpio_atmel.txt b/Documentation/devicetree/bindings/gpio/gpio_atmel.txt
index a7bcaec..66efc80 100644
--- a/Documentation/devicetree/bindings/gpio/gpio_atmel.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio_atmel.txt
@@ -1,7 +1,7 @@
* Atmel GPIO controller (PIO)
Required properties:
-- compatible: "atmel,at91rm9200-gpio"
+- compatible: "atmel,<chip>-gpio", where <chip> is at91rm9200 or at91sam9x5.
- reg: Should contain GPIO controller registers location and length
- interrupts: Should be the port interrupt shared by all the pins.
- #gpio-cells: Should be two. The first cell is the pin number and
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