[PATCH v2 04/13] dt-bindings: pinctrl: Add bindings for Microsemi Ocelot
From: Alexandre Belloni <hidden>
Date: 2017-12-08 15:53:19
Also in:
linux-mips, lkml
Subsystem:
open firmware and flattened device tree bindings, pin control subsystem, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Walleij, Linus Torvalds
Add the documentation for the Microsemi Ocelot pinmuxing and gpio controller. Cc: Linus Walleij <redacted> Cc: linux-gpio@vger.kernel.org Signed-off-by: Alexandre Belloni <redacted> Acked-by: Rob Herring <robh@kernel.org> --- .../bindings/pinctrl/mscc,ocelot-pinctrl.txt | 39 ++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 Documentation/devicetree/bindings/pinctrl/mscc,ocelot-pinctrl.txt
diff --git a/Documentation/devicetree/bindings/pinctrl/mscc,ocelot-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/mscc,ocelot-pinctrl.txt
new file mode 100644
index 000000000000..24a210e0c59a
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/mscc,ocelot-pinctrl.txt@@ -0,0 +1,39 @@ +Microsemi Ocelot pin controller Device Tree Bindings +---------------------------------------------------- + +Required properties: + - compatible : Should be "mscc,ocelot-pinctrl" + - reg : Address and length of the register set for the device + - gpio-controller : Indicates this device is a GPIO controller + - #gpio-cells : Must be 2. + The first cell is the pin number and the + second cell specifies GPIO flags, as defined in + <dt-bindings/gpio/gpio.h>. + - gpio-ranges : Range of pins managed by the GPIO controller. + + +The ocelot-pinctrl driver uses the generic pin multiplexing and generic pin +configuration documented in pinctrl-bindings.txt. + +The following generic properties are supported: + - function + - pins + +Example: + gpio: pinctrl@71070034 { + compatible = "mscc,ocelot-pinctrl"; + reg = <0x71070034 0x28>; + gpio-controller; + #gpio-cells = <2>; + gpio-ranges = <&gpio 0 0 22>; + + uart_pins: uart-pins { + pins = "GPIO_6", "GPIO_7"; + function = "uart"; + }; + + uart2_pins: uart2-pins { + pins = "GPIO_12", "GPIO_13"; + function = "uart2"; + }; + };
--
2.15.1