Re: [RFCv2 3/3] ARM: dts: N900: Add SSI information

Add SSI device tree data for OMAP34xx and Nokia N900.

Signed-off-by: Sebastian Reichel <redacted>
---
 Documentation/devicetree/bindings/hsi/omap_ssi.txt | 73 ++++++++++++++++++++++
 arch/arm/boot/dts/omap3-n900.dts                   |  8 +++
 arch/arm/boot/dts/omap34xx.dtsi                    | 49 +++++++++++++++
 3 files changed, 130 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/hsi/omap_ssi.txt

diff --git a/Documentation/devicetree/bindings/hsi/omap_ssi.txt b/Documentation/devicetree/bindings/hsi/omap_ssi.txt
new file mode 100644
index 0000000..e3597eb
--- /dev/null
+++ b/Documentation/devicetree/bindings/hsi/omap_ssi.txt

@@ -0,0 +1,73 @@
+OMAP SSI controller bindings
+
+Required properties:
+- compatible:		Should be set to the following value
+                        ti,omap3-ssi (applicable to OMAP34xx devices)
+- ti,hwmods:		Name of the hwmod associated to the controller, which
+			is "ssi".
+- reg:			Contains SSI register address range (base address and
+			length).
+- reg-names:		Contains the names of the address ranges. It's
+                        expected, that "sys" and "gdd" address ranges are
+			provided.
+- interrupts: 		Contains the interrupt information for the controller.
+- interrupt-names:      Contains the names of the interrupts. It's expected,
+			that "gdd_mpu" is provided.
+- ranges		Required as an empty node
+- #address-cells	Should be set to <1>
+- #size-cells		Should be set to <1>
+
+Each port is represented as a sub-node of the ti,omap3-ssi device.
+
+Required Port sub-node properties:
+- compatible:		Should be set to the following value
+                        ti,omap3-ssi-port (applicable to OMAP34xx devices)
+- reg:			Contains port's register address range (base address
+			and length).
+- reg-names:		Contains the names of the address ranges. It's
+                        expected, that "tx" and "rx" address ranges are
+			provided.
+- interrupt-parent	Should be a phandle for the interrupt controller
+- interrupts:		Contains the interrupt information for the port.
+- interrupt-names:	Contains the names of the interrupts. It's expected,
+			that "mpu_irq0" and "mpu_irq1" are provided.
+- ti,ssi-cawake-gpio:	Defines which GPIO pin is used to signify CAWAKE
+			events for the port. This is an optional board-specific
+			property. If it's missing the port will not be
+			enabled.
+