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Message-Id: <20230612195657.245125-13-eajames@linux.ibm.com>
Date: Mon, 12 Jun 2023 14:56:55 -0500
From: Eddie James <eajames@...ux.ibm.com>
To: linux-fsi@...ts.ozlabs.org
Cc: linux-kernel@...r.kernel.org, jk@...abs.org, joel@....id.au,
alistair@...ple.id.au, andrew@...id.au, robh+dt@...nel.org,
krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
devicetree@...r.kernel.org
Subject: [PATCH 12/14] dt-bindings: fsi: Document the IBM I2C Responder virtual FSI master
The I2C Responder translates I2C commands to CFAM or SCOM operations,
effectively implementing an FSI master.
Signed-off-by: Eddie James <eajames@...ux.ibm.com>
Reviewed-by: Andrew Jeffery <andrew@...id.au>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
.../bindings/fsi/ibm,i2cr-fsi-master.yaml | 41 +++++++++++++++++++
1 file changed, 41 insertions(+)
create mode 100644 Documentation/devicetree/bindings/fsi/ibm,i2cr-fsi-master.yaml
diff --git a/Documentation/devicetree/bindings/fsi/ibm,i2cr-fsi-master.yaml b/Documentation/devicetree/bindings/fsi/ibm,i2cr-fsi-master.yaml
new file mode 100644
index 000000000000..442cecdc57cb
--- /dev/null
+++ b/Documentation/devicetree/bindings/fsi/ibm,i2cr-fsi-master.yaml
@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/fsi/ibm,i2cr-fsi-master.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: IBM I2C Responder virtual FSI master
+
+maintainers:
+ - Eddie James <eajames@...ux.ibm.com>
+
+description: |
+ The I2C Responder (I2CR) is a an I2C device that's connected to an FSI CFAM
+ (see fsi.txt). The I2CR translates I2C bus operations to FSI CFAM reads and
+ writes or SCOM operations, thereby acting as an FSI master.
+
+properties:
+ compatible:
+ enum:
+ - ibm,i2cr-fsi-master
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ i2cr@20 {
+ compatible = "ibm,i2cr-fsi-master";
+ reg = <0x20>;
+ };
+ };
--
2.31.1
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