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From:   Georgi Djakov <georgi.djakov@linaro.org>
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        linux-arm-msm@vger.kernel.org, georgi.djakov@linaro.org
Subject: [PATCH v6 2/8] dt-bindings: Introduce interconnect provider bindings
Date:   Mon,  9 Jul 2018 18:50:58 +0300
Message-Id: <20180709155104.25528-3-georgi.djakov@linaro.org>
In-Reply-To: <20180709155104.25528-1-georgi.djakov@linaro.org>
References: <20180709155104.25528-1-georgi.djakov@linaro.org>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

This binding is intended to represent the interconnect hardware present
in some of the modern SoCs. Currently it consists only of a binding for
the interconnect hardware devices (provider).

Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
---
 .../bindings/interconnect/interconnect.txt    | 33 +++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/interconnect/interconnect.txt

diff --git a/Documentation/devicetree/bindings/interconnect/interconnect.txt b/Documentation/devicetree/bindings/interconnect/interconnect.txt
new file mode 100644
index 000000000000..6e2b2971b094
--- /dev/null
+++ b/Documentation/devicetree/bindings/interconnect/interconnect.txt
@@ -0,0 +1,33 @@
+Interconnect Provider Device Tree Bindings
+=========================================
+
+The purpose of this document is to define a common set of generic interconnect
+providers/consumers properties.
+
+
+= interconnect providers =
+
+The interconnect provider binding is intended to represent the interconnect
+controllers in the system. Each provider registers a set of interconnect
+nodes, which expose the interconnect related capabilities of the interconnect
+to consumer drivers. These capabilities can be throughput, latency, priority
+etc. The consumer drivers set constraints on interconnect path (or endpoints)
+depending on the use case. Interconnect providers can also be interconnect
+consumers, such as in the case where two network-on-chip fabrics interface
+directly
+
+Required properties:
+- compatible : contains the interconnect provider compatible string
+- #interconnect-cells : number of cells in a interconnect specifier needed to
+			encode the interconnect node id
+
+Example:
+
+		snoc: snoc@580000 {
+			compatible = "qcom,msm8916-snoc";
+			#interconnect-cells = <1>;
+			reg = <0x580000 0x14000>;
+			clock-names = "bus_clk", "bus_a_clk";
+			clocks = <&rpmcc RPM_SMD_SNOC_CLK>,
+				 <&rpmcc RPM_SMD_SNOC_A_CLK>;
+		};