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Cc:     linux-hwmon@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
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        openbmc@lists.ozlabs.org,
        Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
Subject: [PATCH v8 01/12] dt-bindings: Add a document of PECI subsystem
Date:   Tue, 18 Sep 2018 14:51:13 -0700
Message-Id: <20180918215124.14003-2-jae.hyun.yoo@linux.intel.com>
In-Reply-To: <20180918215124.14003-1-jae.hyun.yoo@linux.intel.com>
References: <20180918215124.14003-1-jae.hyun.yoo@linux.intel.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

This commit adds a document of generic PECI bus, adapter and client
driver.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Andrew Jeffery <andrew@aj.id.au>
Cc: Joel Stanley <joel@jms.id.au>
Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
Reviewed-by: Haiyue Wang <haiyue.wang@linux.intel.com>
Reviewed-by: James Feist <james.feist@linux.intel.com>
Reviewed-by: Vernon Mauery <vernon.mauery@linux.intel.com>
---
 .../devicetree/bindings/peci/peci.txt         | 43 +++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/peci/peci.txt

diff --git a/Documentation/devicetree/bindings/peci/peci.txt b/Documentation/devicetree/bindings/peci/peci.txt
new file mode 100644
index 000000000000..864b7ab4e9fa
--- /dev/null
+++ b/Documentation/devicetree/bindings/peci/peci.txt
@@ -0,0 +1,43 @@
+Generic device tree configuration for PECI adapters
+===================================================
+
+Required properties:
+- #address-cells : Should be <1>. Read more about client addresses below.
+- #size-cells    : Should be <0>. Read more about client addresses below.
+
+The cells properties above define that an address of CPU clients of a PECI bus
+are described by a single value.
+
+Example:
+	peci0: peci-bus@0 {
+		compatible = "vendor,soc-peci";
+		reg = <0x0 0x1000>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+	};
+
+Generic device tree configuration for PECI clients
+==================================================
+
+Required properties:
+- compatible : Should contain name of PECI client.
+- reg        : Should contain address of a client CPU. Address range of CPU
+	       clients starts from 0x30 based on PECI specification.
+
+Example:
+	peci-bus@0 {
+		compatible = "vendor,soc-peci";
+		reg = <0x0 0x1000>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		peci-client@30 {
+			compatible = "intel,peci-client";
+			reg = <0x30>;
+		};
+
+		peci-client@31 {
+			compatible = "intel,peci-client";
+			reg = <0x31>;
+		};
+	};
-- 
2.18.0