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-rw-r--r--Documentation/devicetree/bindings/gpio/ingenic,gpio.txt46
-rw-r--r--Documentation/devicetree/bindings/pinctrl/ingenic,pinctrl.txt41
2 files changed, 87 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/gpio/ingenic,gpio.txt b/Documentation/devicetree/bindings/gpio/ingenic,gpio.txt
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index 000000000000..7988aeb725f4
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+++ b/Documentation/devicetree/bindings/gpio/ingenic,gpio.txt
@@ -0,0 +1,46 @@
+Ingenic jz47xx GPIO controller
+
+That the Ingenic GPIO driver node must be a sub-node of the Ingenic pinctrl
+driver node.
+
+Required properties:
+--------------------
+
+ - compatible: Must contain one of:
+ - "ingenic,jz4740-gpio"
+ - "ingenic,jz4770-gpio"
+ - "ingenic,jz4780-gpio"
+ - reg: The GPIO bank number.
+ - interrupt-controller: Marks the device node as an interrupt controller.
+ - interrupts: Interrupt specifier for the controllers interrupt.
+ - #interrupt-cells: Should be 2. Refer to
+ ../interrupt-controller/interrupts.txt for more details.
+ - 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 specifies GPIO flags, as defined in <dt-bindings/gpio/gpio.h>. Only the
+ GPIO_ACTIVE_HIGH and GPIO_ACTIVE_LOW flags are supported.
+ - gpio-ranges: Range of pins managed by the GPIO controller. Refer to
+ 'gpio.txt' in this directory for more details.
+
+Example:
+--------
+
+&pinctrl {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ gpa: gpio@0 {
+ compatible = "ingenic,jz4740-gpio";
+ reg = <0>;
+
+ gpio-controller;
+ gpio-ranges = <&pinctrl 0 0 32>;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <28>;
+ };
+};
diff --git a/Documentation/devicetree/bindings/pinctrl/ingenic,pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/ingenic,pinctrl.txt
new file mode 100644
index 000000000000..ca313a7aeaff
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+++ b/Documentation/devicetree/bindings/pinctrl/ingenic,pinctrl.txt
@@ -0,0 +1,41 @@
+Ingenic jz47xx pin controller
+
+Please refer to pinctrl-bindings.txt in this directory for details of the
+common pinctrl bindings used by client devices, including the meaning of the
+phrase "pin configuration node".
+
+For the jz47xx SoCs, pin control is tightly bound with GPIO ports. All pins may
+be used as GPIOs, multiplexed device functions are configured within the
+GPIO port configuration registers and it is typical to refer to pins using the
+naming scheme "PxN" where x is a character identifying the GPIO port with
+which the pin is associated and N is an integer from 0 to 31 identifying the
+pin within that GPIO port. For example PA0 is the first pin in GPIO port A, and
+PB31 is the last pin in GPIO port B. The jz4740 contains 4 GPIO ports, PA to
+PD, for a total of 128 pins. The jz4780 contains 6 GPIO ports, PA to PF, for a
+total of 192 pins.
+
+
+Required properties:
+--------------------
+
+ - compatible: One of:
+ - "ingenic,jz4740-pinctrl"
+ - "ingenic,jz4770-pinctrl"
+ - "ingenic,jz4780-pinctrl"
+ - reg: Address range of the pinctrl registers.
+
+
+GPIO sub-nodes
+--------------
+
+The pinctrl node can have optional sub-nodes for the Ingenic GPIO driver;
+please refer to ../gpio/ingenic,gpio.txt.
+
+
+Example:
+--------
+
+pinctrl: pin-controller@10010000 {
+ compatible = "ingenic,jz4740-pinctrl";
+ reg = <0x10010000 0x400>;
+};