The second cell in a gpio reference is used to pass GPIO_ACTIVE_LOW or GPIO_ACTIVE_HIGH. The gpio device can also be used as irq controller and a reference can contain the IRQ_TYPE_* values in the second cell. Signed-off-by: Uwe Kleine-König <uwe@xxxxxxxxxxxxxxxxx> --- On Fri, May 26, 2017 at 08:52:14PM +0200, Andrew Lunn wrote: > > +- interrupt-controller: Marks the device node as a GPIO controller. > > Interrupt controller, not GPIO controller. > > > +- #interrupt-cells: Should be two. The first cell is the pin number and the > > + second cell is used to specify irq type flags: > > + 1 = low-to-high edge triggered. > > + 2 = high-to-low edge triggered. > > + 4 = active high level-sensitive. > > + 8 = active low level-sensitive. > > Maybe just reference interrupts.txt? ack for both and changed in this v2. Thanks Uwe Documentation/devicetree/bindings/gpio/gpio_atmel.txt | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/gpio/gpio_atmel.txt b/Documentation/devicetree/bindings/gpio/gpio_atmel.txt --- a/Documentation/devicetree/bindings/gpio/gpio_atmel.txt +++ b/Documentation/devicetree/bindings/gpio/gpio_atmel.txt @@ -5,9 +5,13 @@ Required properties: - 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 - the second cell is used to specify optional parameters (currently - unused). + the second cell is used to specify optional parameters to declare if the GPIO + is active high or low. See gpio.txt. - gpio-controller: Marks the device node as a GPIO controller. +- interrupt-controller: Marks the device node as an interrupt controller. +- #interrupt-cells: Should be two. The first cell is the pin number and the + second cell is used to specify irq type flags, see the two cell description + in interrupt-controller/interrupts.txt for details. optional properties: - #gpio-lines: Number of gpio if absent 32. @@ -21,5 +25,7 @@ Example: #gpio-cells = <2>; gpio-controller; #gpio-lines = <19>; + interrupt-controller; + #interrupt-cells = <2>; }; -- 2.11.0 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
