[PATCH v8 07/12] dt-bindings: mfd: Add a document for PECI client MFD

Jae Hyun Yoo jae.hyun.yoo at linux.intel.com
Tue Sep 18 14:51:19 PDT 2018


This commit adds a dt-bindings document for PECI client MFD.

Cc: Lee Jones <lee.jones at linaro.org>
Cc: Rob Herring <robh+dt at kernel.org>
Cc: Mark Rutland <mark.rutland at arm.com>
Cc: Andrew Jeffery <andrew at aj.id.au>
Cc: James Feist <james.feist at linux.intel.com>
Cc: Jason M Biils <jason.m.bills at linux.intel.com>
Cc: Joel Stanley <joel at jms.id.au>
Cc: Vernon Mauery <vernon.mauery at linux.intel.com>
Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo at linux.intel.com>
---
 .../bindings/mfd/intel-peci-client.txt        | 34 +++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mfd/intel-peci-client.txt

diff --git a/Documentation/devicetree/bindings/mfd/intel-peci-client.txt b/Documentation/devicetree/bindings/mfd/intel-peci-client.txt
new file mode 100644
index 000000000000..cb341e363add
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/intel-peci-client.txt
@@ -0,0 +1,34 @@
+* Intel PECI client bindings
+
+PECI (Platform Environment Control Interface) is a one-wire bus interface that
+provides a communication channel from PECI clients in Intel processors and
+chipset components to external monitoring or control devices. PECI is designed
+to support the following sideband functions:
+
+- Processor and DRAM thermal management
+- Platform Manageability
+- Processor Interface Tuning and Diagnostics
+- Failure Analysis
+
+Required properties:
+- compatible : Should be "intel,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 at 0 {
+		compatible = "vendor,soc-peci";
+		reg = <0x0 0x1000>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		peci-client at 30 {
+			compatible = "intel,peci-client";
+			reg = <0x30>;
+		};
+
+		peci-client at 31 {
+			compatible = "intel,peci-client";
+			reg = <0x31>;
+		};
+	};
-- 
2.18.0




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