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Signed-off-by: Andrei Stefanescu --- .../bindings/gpio/gpio-sama5d2-piobu.txt | 23 ++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/gpio-sama5d2-piobu.txt diff --git a/Documentation/devicetree/bindings/gpio/gpio-sama5d2-piobu.txt b/Documentation/devicetree/bindings/gpio/gpio-sama5d2-piobu.txt new file mode 100644 index 0000000..791ac51 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/gpio-sama5d2-piobu.txt @@ -0,0 +1,23 @@ +GPIO controller for SAMA5D2 PIOBU pins. + +This pins have the property of not losing their voltage +during Backup/Self-refresh mode. + +These bindings should be set to a node in the dtsi file. + +Required properties: +- compatible: "syscon", "microchip,sama5d2-piobu" +- #gpio-cells: There are 2. The pin number is the + first, the second represents additional + parameters such as GPIO_ACTIVE_HIGH/LOW. +- gpio-controller: Marks the port as GPIO controller. + +Example: + + secumod@fc040000 { + compatible = "syscon", "microchip,sama5d2-piobu"; + reg = <0xfc040000 0x100>; + + gpio-controller; + #gpio-cells = <2>; + };