linux-kernel - [PATCH 3/5] dt-bindings: soc: Add a binding for the Broadcom VCHI services.

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Date:   Mon,  5 Mar 2018 12:28:04 -0800
From:   Eric Anholt <eric@...olt.net>
To:     Florian Fainelli <f.fainelli@...il.com>,
        Mark Rutland <mark.rutland@....com>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Phil Elwell <phil@...pberrypi.org>
Cc:     linux-rpi-kernel@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Stefan Wahren <stefan.wahren@...e.com>,
        bcm-kernel-feedback-list@...adcom.com,
        Eric Anholt <eric@...olt.net>
Subject: [PATCH 3/5] dt-bindings: soc: Add a binding for the Broadcom VCHI services.

The VCHI communication channel can be provided by BCM283x and Capri
SoCs, to communicate with the VPU-side OS services.

Signed-off-by: Eric Anholt <eric@...olt.net>
---
 .../devicetree/bindings/soc/bcm/brcm,bcm2835-vchiq.txt | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-vchiq.txt

diff --git a/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-vchiq.txt b/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-vchiq.txt
new file mode 100644
index 000000000000..4055a8977f3e
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-vchiq.txt
@@ -0,0 +1,18 @@
+Broadcom VCHIQ firmware services
+
+Required properties:
+
+- compatible:	Should be "brcm,bcm2835-vchiq"
+- reg:		Physical base address and length of the doorbell register pair
+- interrupts:	The interrupt number
+		  See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt
+- firmware:	Reference to the RPi firmware device node
+
+Example:
+
+vchi@...0b840 {
+	compatible = "brcm,bcm2835-vchiq";
+	reg = <0x7e00b840 0xf>;
+	interrupts = <0 2>;
+	firmware = <&firmware>;
+};
-- 
2.16.2