linux-kernel - [PATCH v4 1/6] dt-bindings: ap806: add the cluster clock node in the syscon file

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Message-Id: <20190325124803.28904-2-gregory.clement@bootlin.com>
Date:   Mon, 25 Mar 2019 13:47:58 +0100
From:   Gregory CLEMENT <gregory.clement@...tlin.com>
To:     Stephen Boyd <sboyd@...eaurora.org>,
        Mike Turquette <mturquette@...libre.com>,
        linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        Jason Cooper <jason@...edaemon.net>,
        Andrew Lunn <andrew@...n.ch>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
        Gregory CLEMENT <gregory.clement@...tlin.com>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        linux-arm-kernel@...ts.infradead.org,
        Antoine Tenart <antoine.tenart@...tlin.com>,
        Miquèl Raynal <miquel.raynal@...tlin.com>,
        Maxime Chevallier <maxime.chevallier@...tlin.com>
Subject: [PATCH v4 1/6] dt-bindings: ap806: add the cluster clock node in the syscon file

Document the device tree binding for the cluster clock controllers found
in the Armada 7K/8K SoCs.

Signed-off-by: Gregory CLEMENT <gregory.clement@...tlin.com>
---
 .../arm/marvell/ap806-system-controller.txt   | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt b/Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt
index 7b8b8eb0191f..ceeba18b4ac3 100644
--- a/Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt
+++ b/Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt
@@ -143,3 +143,28 @@ ap_syscon1: system-controller@...000 {
 		#thermal-sensor-cells = <1>;
 	};
 };
+
+Cluster clocks:
+---------------
+
+Device Tree Clock bindings for cluster clock of AP806 Marvell. Each
+cluster contain up to 2 CPUs running at the same frequency.
+
+Required properties:
+- compatible: must be  "marvell,ap806-cpu-clock";
+- #clock-cells : should be set to 1.
+- clocks : shall be the input parents clock phandle for the clock.
+
+Optional property:
+ - reg: register range associated the cluser clocks
+
+ap_syscon1: system-controller@...000 {
+	compatible = "syscon", "simple-mfd";
+	reg = <0x6f8000 0x1000>;
+
+	cpu_clk: clock-cpu {
+		compatible = "marvell,ap806-cpu-clock";
+		clocks = <&ap_clk 0>, <&ap_clk 1>;
+		#clock-cells = <1>;
+	};
+};
-- 
2.20.1