From: chenjh <chenjh@xxxxxxxxxxxxxx>
Add device tree bindings documentation for Rockchip's RK805 PMIC
Signed-off-by: chenjh <chenjh@xxxxxxxxxxxxxx>
---
.../devicetree/bindings/gpio/gpio-rk805.txt | 37 ++++++++++++++++++++++
1 file changed, 37 insertions(+)
create mode 100644 Documentation/devicetree/bindings/gpio/gpio-rk805.txt
diff --git a/Documentation/devicetree/bindings/gpio/gpio-rk805.txt b/Documentation/devicetree/bindings/gpio/gpio-rk805.txt
new file mode 100644
index 0000000..98b75fa
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-rk805.txt
@@ -0,0 +1,37 @@
+RK805 GPIO controller
+
+This driver follows the usual GPIO bindings found in
+Documentation/devicetree/bindings/gpio/gpio.txt
+
+Required properties:
+- #gpio-cells: Should be two. The first cell is the pin number and the
+ second is the GPIO flags.
+- gpio-controller: Marks the device node as a GPIO controller.
+
+These properties must be added in the RK805 PMIC node, documented in
+Documentation/devicetree/bindings/mfd/rk808.txt
+
+Example:
+
+rk805: pmic@18 {
+ compatible = "rockchip,rk808";
+ clock-output-names = "xin32k", "rk808-clkout2";
+ interrupt-parent = <&gpio0>;
+ interrupts = <4 IRQ_TYPE_LEVEL_LOW>;
+ reg = <0x1a>;
+ rockchip,system-power-controller;
+ wakeup-source;
+ #clock-cells = <1>;
+ ...
+ gpio-controller;
+ #gpio-cells = <2>;
+};
+
+
+Example of a peripheral using the PMIC GPIOs:
+
+wireless-bluetooth {
+ compatible = "bluetooth-platdata";
+ ...
+ gpios = <&rk805 0 GPIO_ACTIVE_HIGH>, <&rk805 1 GPIO_ACTIVE_HIGH>;
+};
--
1.9.1
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