dt/bindings: Add binding for the BCM2835 mailbox driver (d4b5c782) · Commits · 戴 / test

This patch was split out of Lubomir's original mailbox patch by Eric Anholt, and the required properties documentation and examples have been filled out more completely and updated for the driver being changed to expose a single channel. Signed-off-by:

Lubomir Rintel <lkundrak@v3.sk> Signed-off-by:

Craig McGeachie <slapdau@yahoo.com.au> Signed-off-by:

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

Lee Jones <lee.jones@linaro.org> Acked-by:

Stephen Warren <swarren@wwwdotorg.org> Signed-off-by:

Jassi Brar <jaswinder.singh@linaro.org>

Documentation/devicetree/bindings/mailbox/brcm,bcm2835-mbox.txt

0 → 100644

+26 −0

Original line number	Diff line number	Diff line
		Broadcom BCM2835 VideoCore mailbox IPC

		Required properties:

		- compatible: Should be "brcm,bcm2835-mbox"
		- reg: Specifies base physical address and size of the registers
		- interrupts: The interrupt number
		See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt
		- #mbox-cells: Specifies the number of cells needed to encode a mailbox
		channel. The value shall be 0, since there is only one
		mailbox channel implemented by the device.

		Example:

		mailbox: mailbox@7e00b800 {
		compatible = "brcm,bcm2835-mbox";
		reg = <0x7e00b880 0x40>;
		interrupts = <0 1>;
		#mbox-cells = <0>;
		};

		firmware: firmware {
		compatible = "raspberrypi,firmware";
		mboxes = <&mailbox>;
		#power-domain-cells = <1>;
		};

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