diff options
Diffstat (limited to 'kernel/Documentation/devicetree/bindings/gpio/gpio-zynq.txt')
| -rw-r--r-- | kernel/Documentation/devicetree/bindings/gpio/gpio-zynq.txt | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/kernel/Documentation/devicetree/bindings/gpio/gpio-zynq.txt b/kernel/Documentation/devicetree/bindings/gpio/gpio-zynq.txt index 986371a4b..7b542657f 100644 --- a/kernel/Documentation/devicetree/bindings/gpio/gpio-zynq.txt +++ b/kernel/Documentation/devicetree/bindings/gpio/gpio-zynq.txt @@ -6,12 +6,19 @@ Required properties: - First cell is the GPIO line number - Second cell is used to specify optional parameters (unused) -- compatible : Should be "xlnx,zynq-gpio-1.0" +- compatible : Should be "xlnx,zynq-gpio-1.0" or "xlnx,zynqmp-gpio-1.0" - clocks : Clock specifier (see clock bindings for details) - gpio-controller : Marks the device node as a GPIO controller. - interrupts : Interrupt specifier (see interrupt bindings for details) - interrupt-parent : Must be core interrupt controller +- interrupt-controller : Marks the device node as an interrupt controller. +- #interrupt-cells : Should be 2. The first cell is the GPIO number. + The second cell bits[3:0] is used to specify trigger type and level flags: + 1 = low-to-high edge triggered. + 2 = high-to-low edge triggered. + 4 = active high level-sensitive. + 8 = active low level-sensitive. - reg : Address and length of the register set for the device Example: @@ -22,5 +29,7 @@ Example: gpio-controller; interrupt-parent = <&intc>; interrupts = <0 20 4>; + interrupt-controller; + #interrupt-cells = <2>; reg = <0xe000a000 0x1000>; }; |