Add a function to initialize the OMAP2/3 interrupt controller (INTC)
using a device tree node.

This version take advantage of the new irq_domain_add_legacy API.

Replace some printk() with the proper pr_ macro.

Signed-off-by: Benoit Cousson <redacted>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Rob Herring <redacted>
Cc: Grant Likely <redacted>
---
 .../devicetree/bindings/arm/omap/intc.txt          |   27 +++++++++
 arch/arm/mach-omap2/common.h                       |   10 +++
 arch/arm/mach-omap2/irq.c                          |   59 ++++++++++++++++---
 3 files changed, 86 insertions(+), 10 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/arm/omap/intc.txt

diff --git a/Documentation/devicetree/bindings/arm/omap/intc.txt b/Documentation/devicetree/bindings/arm/omap/intc.txt
new file mode 100644
index 0000000..f2583e6
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/omap/intc.txt

@@ -0,0 +1,27 @@
+* OMAP Interrupt Controller
+
+OMAP2/3 are using a TI interrupt controller that can support several
+configurable number of interrupts.
+
+Main node required properties:
+
+- compatible : should be:
+	"ti,omap2-intc"
+- interrupt-controller : Identifies the node as an interrupt controller
+- #interrupt-cells : Specifies the number of cells needed to encode an
+  interrupt source. The type shall be a <u32> and the value shall be 1.
+
+  The cell contains the interrupt number in the range [0-128].
+- ti,intc-size: Number of interrupts handled by the interrupt controller.
+- reg: physical base address and size of the intc registers map.
+
+Example:
+
+	intc: interrupt-controller at 1 {
+		compatible = "ti,omap2-intc";
+		interrupt-controller;
+		#interrupt-cells = <1>;
+		ti,intc-size = <96>;
+		reg = <0x48200000 0x1000>;
+	};
+

diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h
index febffde..a87ce52 100644
--- a/arch/arm/mach-omap2/common.h
+++ b/arch/arm/mach-omap2/common.h

@@ -174,6 +174,16 @@ void omap3_intc_handle_irq(struct pt_regs *regs);
 extern void __iomem *omap4_get_l2cache_base(void);
 #endif
 
+struct device_node;
+#ifdef CONFIG_OF
+int __init intc_of_init(struct device_node *node, struct device_node *parent);