linux-kernel - [PATCH v4 6/7] dt-bindings: Introduce interconnect consumers bindings

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Message-Id: <20180309210958.16672-7-georgi.djakov@linaro.org>
Date:   Fri,  9 Mar 2018 23:09:57 +0200
From:   Georgi Djakov <georgi.djakov@...aro.org>
To:     linux-pm@...r.kernel.org, gregkh@...uxfoundation.org
Cc:     rjw@...ysocki.net, robh+dt@...nel.org, mturquette@...libre.com,
        khilman@...libre.com, vincent.guittot@...aro.org,
        skannan@...eaurora.org, bjorn.andersson@...aro.org,
        amit.kucheria@...aro.org, seansw@....qualcomm.com,
        davidai@...cinc.com, mark.rutland@....com,
        lorenzo.pieralisi@....com, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-arm-msm@...r.kernel.org, georgi.djakov@...aro.org
Subject: [PATCH v4 6/7] dt-bindings: Introduce interconnect consumers bindings

Add documentation for the interconnect consumer bindings, that will allow
to link a device node (consumer) to its interconnect controller hardware.

Tha aim is to enable drivers to request a framework API to configure an
interconnect path by providing their struct device pointer and a name.

Signed-off-by: Georgi Djakov <georgi.djakov@...aro.org>
---
 .../bindings/interconnect/interconnect.txt         | 23 ++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/Documentation/devicetree/bindings/interconnect/interconnect.txt b/Documentation/devicetree/bindings/interconnect/interconnect.txt
index 70612bb201e4..7935abf10c4b 100644
--- a/Documentation/devicetree/bindings/interconnect/interconnect.txt
+++ b/Documentation/devicetree/bindings/interconnect/interconnect.txt
@@ -45,3 +45,26 @@ Examples:
 			status = "okay";
 		};
 
+= interconnect consumers =
+
+The interconnect consumers are device nodes which consume the interconnect
+path(s) provided by the interconnect provider. There can be multiple
+interconnect providers on a SoC and the consumer may consume multiple paths
+from different providers depending on usecase and the components it has to
+interact with.
+
+Required-properties:
+interconnects: Pairs of phandles and interconnect provider specifier to denote
+		the source and the destination port of the interconnect path.
+interconnect-names: List of interconnect path name strings sorted in the same
+		order as the interconnects property. Consumers drivers will use
+		interconnect-names to match interconnect paths with interconnect
+		specifiers.
+
+Example:
+
+	sdhci@...4000 {
+		...
+		interconnects = <&pnoc 78 &bimc 512>
+		interconnect-names = "memory";
+	};