[PATCH v5 4/9] dt-bindings: gpio: Add gpio nodes for Actions S900 SoC
From: Manivannan Sadhasivam <hidden>
Date: 2018-03-09 05:15:22
Also in:
linux-devicetree, linux-gpio, lkml
Subsystem:
gpio subsystem, open firmware and flattened device tree bindings, the rest · Maintainers:
Linus Walleij, Bartosz Golaszewski, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Add gpio nodes for Actions Semi S900 SoC. Signed-off-by: Manivannan Sadhasivam <redacted> --- .../devicetree/bindings/gpio/actions,owl-gpio.txt | 90 ++++++++++++++++++++++ 1 file changed, 90 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/actions,owl-gpio.txt
diff --git a/Documentation/devicetree/bindings/gpio/actions,owl-gpio.txt b/Documentation/devicetree/bindings/gpio/actions,owl-gpio.txt
new file mode 100644
index 000000000000..ad7d32ce2abe
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/actions,owl-gpio.txt@@ -0,0 +1,90 @@ +* Actions Semi OWL GPIO controller bindings + +The GPIOs are organized as individual banks/ports with variable number +of GPIOs. Each bank is represented as an individual GPIO controller. + +Required properties: +- compatible : Should be "actions,s900-gpio" +- reg : Address and range of the GPIO controller registers. +- gpio-controller : Marks the device node as a GPIO controller. +- #gpio-cells : Should be <2>. The first cell is the gpio number + and the second cell is used to specify optional + parameters. +- ngpios : Specifies the number of GPIO lines. +- interrupt-controller : Marks the device node as an interrupt controller. +- #interrupt-cells : Specifies the number of cells needed to encode an + interrupt. Shall be set to 2. The first cell + defines the interrupt number, the second encodes + the trigger flags described in + bindings/interrupt-controller/interrupts.txt + +Optional properties: +- gpio-ranges : Mapping between GPIO and pinctrl + +Examples: + + gpioa: gpio at e01b0000 { + compatible = "actions,s900-gpio"; + reg = <0x0 0xe01b0000 0x0 0x1000>; + gpio-controller; + #gpio-cells = <2>; + gpio-ranges = <&pinctrl 0 0 32>; + ngpios = <32>; + interrupt-controller; + #interrupt-cells = <2>; + }; + + gpiob: gpio at e01b000c { + compatible = "actions,s900-gpio"; + reg = <0x0 0xe01b000c 0x0 0x1000>; + gpio-controller; + #gpio-cells = <2>; + gpio-ranges = <&pinctrl 0 32 32>; + ngpios = <32>; + interrupt-controller; + #interrupt-cells = <2>; + }; + + gpioc: gpio at e01b0018 { + compatible = "actions,s900-gpio"; + reg = <0x0 0xe01b0018 0x0 0x1000>; + gpio-controller; + #gpio-cells = <2>; + gpio-ranges = <&pinctrl 0 64 12>; + ngpios = <12>; + interrupt-controller; + #interrupt-cells = <2>; + }; + + gpiod: gpio at e01b0024 { + compatible = "actions,s900-gpio"; + reg = <0x0 0xe01b0024 0x0 0x1000>; + gpio-controller; + #gpio-cells = <2>; + gpio-ranges = <&pinctrl 0 76 30>; + ngpios = <30>; + interrupt-controller; + #interrupt-cells = <2>; + }; + + gpioe: gpio at e01b0030 { + compatible = "actions,s900-gpio"; + reg = <0x0 0xe01b0030 0x0 0x1000>; + gpio-controller; + #gpio-cells = <2>; + gpio-ranges = <&pinctrl 0 106 32>; + ngpios = <32>; + interrupt-controller; + #interrupt-cells = <2>; + }; + + gpiof: gpio at e01b00f0 { + compatible = "actions,s900-gpio"; + reg = <0x0 0xe01b00f0 0x0 0x1000>; + gpio-controller; + #gpio-cells = <2>; + gpio-ranges = <&pinctrl 0 138 8>; + ngpios = <8>; + interrupt-controller; + #interrupt-cells = <2>; + };
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2.14.1