Merge tag 'rpi-dt-for-armsoc-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/rpi/linux-rpi into next/dt

- New Firmware node and accompanying binding document

* tag 'rpi-dt-for-armsoc-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/rpi/linux-rpi:
dt/bindings: Add binding for the Raspberry Pi firmware driver
ARM: bcm2835: Add the firmware driver information to the RPi DT

Signed-off-by: Olof Johansson <[e-mail]>

Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.txt

···
+Raspberry Pi VideoCore firmware driver
+
+Required properties:
+
+- compatible:		Should be "raspberrypi,bcm2835-firmware"
+- mboxes:		Phandle to the firmware device's Mailbox.
+			  (See: ../mailbox/mailbox.txt for more information)
+
+Example:
+
+firmware {
+	compatible = "raspberrypi,bcm2835-firmware";
+	mboxes = <&mailbox>;
+};

arch/arm/boot/dts/bcm2835-rpi.dtsi

···
 			linux,default-trigger = "heartbeat";
 		};
 	};
+
+	soc {
+		firmware: firmware {
+			compatible = "raspberrypi,bcm2835-firmware";
+			mboxes = <&mailbox>;
+		};
+	};
 };
 
 &gpio {