Merge tag 'dt-for-3.7' of git://sources.calxeda.com/kernel/linux

Pull devicetree updates from Rob Herring:
 - Import of latest upstream device tree compiler (dtc)
 - New function of_get_child_by_name
 - Support for #size-cells of 0 and #addr-cells of >2
 - Couple of DT binding documentation updates

Fix up trivial conflicts due to of_get_child_by_name() having been added
next to the new of_get_next_available_child().

* tag 'dt-for-3.7' of git://sources.calxeda.com/kernel/linux:
  MAINTAINERS: add scripts/dtc under Devicetree maintainers
  dtc: import latest upstream dtc
  dt: Document general interrupt controller bindings
  dt/s3c64xx/spi: Use of_get_child_by_name to get a named child
  dt: introduce of_get_child_by_name to get child node by name
  of: i2c: add support for wakeup-source property
  of/address: Handle #address-cells > 2 specially
  DT: export of_irq_to_resource_table()
  devicetree: serial: Add documentation for imx serial
  devicetree: pwm: mxs-pwm.txt: Fix reg field annotation
  of: Allow busses with #size-cells=0

1 files changed, 95 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/interrupt-controller/interrupts.txt b/Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
new file mode 100644
index 00000000000..72a06c0ab1d
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
@@ -0,0 +1,95 @@
+Specifying interrupt information for devices
+============================================
+
+1) Interrupt client nodes
+-------------------------
+
+Nodes that describe devices which generate interrupts must contain an
+"interrupts" property. This property must contain a list of interrupt
+specifiers, one per output interrupt. The format of the interrupt specifier is
+determined by the interrupt controller to which the interrupts are routed; see
+section 2 below for details.
+
+The "interrupt-parent" property is used to specify the controller to which
+interrupts are routed and contains a single phandle referring to the interrupt
+controller node. This property is inherited, so it may be specified in an
+interrupt client node or in any of its parent nodes.
+
+2) Interrupt controller nodes
+-----------------------------
+
+A device is marked as an interrupt controller with the "interrupt-controller"
+property. This is a empty, boolean property. An additional "#interrupt-cells"
+property defines the number of cells needed to specify a single interrupt.
+
+It is the responsibility of the interrupt controller's binding to define the
+length and format of the interrupt specifier. The following two variants are
+commonly used:
+
+  a) one cell
+  -----------
+  The #interrupt-cells property is set to 1 and the single cell defines the
+  index of the interrupt within the controller.
+
+  Example:
+
+	vic: intc@10140000 {
+		compatible = "arm,versatile-vic";
+		interrupt-controller;
+		#interrupt-cells = <1>;
+		reg = <0x10140000 0x1000>;
+	};
+
+	sic: intc@10003000 {
+		compatible = "arm,versatile-sic";
+		interrupt-controller;
+		#interrupt-cells = <1>;
+		reg = <0x10003000 0x1000>;
+		interrupt-parent = <&vic>;
+		interrupts = <31>; /* Cascaded to vic */
+	};
+
+  b) two cells
+  ------------
+  The #interrupt-cells property is set to 2 and the first cell defines the
+  index of the interrupt within the controller, while the second cell is used
+  to specify any of the following flags:
+    - bits[3:0] trigger type and level flags
+        1 = low-to-high edge triggered
+        2 = high-to-low edge triggered
+        4 = active high level-sensitive
+        8 = active low level-sensitive
+
+  Example:
+
+	i2c@7000c000 {
+		gpioext: gpio-adnp@41 {
+			compatible = "ad,gpio-adnp";
+			reg = <0x41>;
+
+			interrupt-parent = <&gpio>;
+			interrupts = <160 1>;
+
+			gpio-controller;
+			#gpio-cells = <1>;
+
+			interrupt-controller;
+			#interrupt-cells = <2>;
+
+			nr-gpios = <64>;
+		};
+
+		sx8634@2b {
+			compatible = "smtc,sx8634";
+			reg = <0x2b>;
+
+			interrupt-parent = <&gpioext>;
+			interrupts = <3 0x8>;
+
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			threshold = <0x40>;
+			sensitivity = <7>;
+		};
+	};