diff options
| author | Nicolas Ferre <nicolas.ferre@atmel.com> | 2010-07-20 13:18:51 -0400 |
|---|---|---|
| committer | Nicolas Ferre <nicolas.ferre@atmel.com> | 2012-03-01 07:38:50 -0500 |
| commit | 582d5fbd4e81e7debe5f3a0e6ce1a0bcdf636c6e (patch) | |
| tree | dd51bedcd86e887b44d85b79b9d506a79599af0f /Documentation/devicetree/bindings/gpio | |
| parent | 9a9fe01ecf68c9b100499908122944597c63f21f (diff) | |
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/devicetree/bindings/gpio')
| -rw-r--r-- | Documentation/devicetree/bindings/gpio/gpio_atmel.txt | 2 |
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 a7bcaec913bf..66efc804806a 100644 --- a/Documentation/devicetree/bindings/gpio/gpio_atmel.txt +++ b/Documentation/devicetree/bindings/gpio/gpio_atmel.txt | |||
| @@ -1,7 +1,7 @@ | |||
| 1 | * Atmel GPIO controller (PIO) | 1 | * Atmel GPIO controller (PIO) |
| 2 | 2 | ||
| 3 | Required properties: | 3 | Required properties: |
| 4 | - compatible: "atmel,at91rm9200-gpio" | 4 | - compatible: "atmel,<chip>-gpio", where <chip> is at91rm9200 or at91sam9x5. |
| 5 | - reg: Should contain GPIO controller registers location and length | 5 | - reg: Should contain GPIO controller registers location and length |
| 6 | - interrupts: Should be the port interrupt shared by all the pins. | 6 | - interrupts: Should be the port interrupt shared by all the pins. |
| 7 | - #gpio-cells: Should be two. The first cell is the pin number and | 7 | - #gpio-cells: Should be two. The first cell is the pin number and |