From: Georgi Vlaev <gvlaev@xxxxxxxxxxx>
Add DT bindings document for the PTXPMB CPLD MFD device.
Signed-off-by: Georgi Vlaev <gvlaev@xxxxxxxxxxx>
[Ported from Juniper kernel]
Signed-off-by: Pantelis Antoniou <pantelis.antoniou@xxxxxxxxxxxx>
---
.../devicetree/bindings/mfd/jnx-ptxpmb-cpld.txt | 76 ++++++++++++++++++++++
1 file changed, 76 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/jnx-ptxpmb-cpld.txt
diff --git a/Documentation/devicetree/bindings/mfd/jnx-ptxpmb-cpld.txt b/Documentation/devicetree/bindings/mfd/jnx-ptxpmb-cpld.txt
new file mode 100644
index 0000000..cc3cbb9
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/jnx-ptxpmb-cpld.txt
@@ -0,0 +1,76 @@
+* Device tree bindings for Juniper's PTXPMB CPLD FPGA MFD driver
+
+The device supports a number I2C muxes, hardware watchdog and a gpio block.
+Those devices bindings are described in the jnx-i2c-mux-ptxpmb-cpld,
+jnx-ptxpmb-wdt and jnx-gpio-ptxpmb-cpld documents.
+
+Required properties:
+
+- compatible: "jnx,ptxpmb-cpld", "jnx,ngpmb-bcpld". They differ
+ in the i2c-mux blocks.
+
+- reg: contains offset/length value for device state control
+ registers space.
+
+Optional properties:
+
+- interrupts: The interrupt line(s) the /IRQ signal(s) for the device is
+ connected to.
+
+- interrupt-parent: The parent interrupt controller.
+
+Example:
+
+cpld@0,0 {
+ compatible = "jnx,ptxpmb-cpld";
+ reg = <0x0 0 0x10000>;
+
+ cpld-i2c-mux {
+ compatible = "jnx,i2c-mux-ptxpmb-cpld";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ i2c-parent = <&i2c_master_0>;
+
+ num-enable = <1>;
+
+ i2c@0 {
+ reg = <0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* PMB devices are accessed through FPC */
+
+ temp-sensor@1a { /* FPC */
+ compatible = "maxim,max6697";
+ reg = <0x1a>;
+ smbus-timeout-disable;
+ resistance-cancellation;
+ alert-mask = <0xff>;
+ over-temperature-mask = <0xff>;
+ };
+ };
+
+ pic0i2c: i2c@1 {
+ reg = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* PIC 0 */
+ };
+
+ pic1i2c: i2c@2 {
+ reg = <2>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* PIC 1 */
+ };
+ };
+
+ gpio_cpld: cpld_gpio {
+ compatible = "jnx,gpio-ptxpmb-cpld";
+ #gpio-cells = <2>;
+ gpio-controller;
+ };
+};
--
1.9.1
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