[PATCH 1/3 v2] dt/bindings: Add binding for the Raspberry Pi firmware driver

[Eric Anholt <eric@anholt.net>]

This driver will provide support for calls into the firmware that will
be used by other drivers like cpufreq and vc4.

Signed-off-by: Eric Anholt <eric@anholt.net>
---

v2: Improve commit message, point to mailbox.txt for how mboxes work.

 .../devicetree/bindings/arm/bcm/raspberrypi,firmware.txt | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/bcm/raspberrypi,firmware.txt

diff --git a/Documentation/devicetree/bindings/arm/bcm/raspberrypi,firmware.txt b/Documentation/devicetree/bindings/arm/bcm/raspberrypi,firmware.txt
new file mode 100644
index 0000000..33b0043
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/bcm/raspberrypi,firmware.txt
@@ -0,0 +1,16 @@
+Raspberry Pi VideoCore firmware driver
+
+Required properties:
+
+- compatible:		Should be "rasbperrypi,firmware"
+- mboxes:		Single-entry list which specifies which mailbox
+			  controller and channel is used.  See
+			  Documentation/devicetree/bindings/mailbox/mailbox.txt
+			  for the semantics of this property
+
+Example:
+
+firmware {
+	compatible = "rasbperrypi,firmware";
+	mboxes = <&mailbox>;
+};
-- 
2.1.4