linux-kernel - [PATCH 1/2] dt-bindings: fsi: Document the IBM I2C Responder virtual FSI master

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Message-Id: <20230119174714.1486042-2-eajames@linux.ibm.com>
Date:   Thu, 19 Jan 2023 11:47:13 -0600
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, devicetree@...r.kernel.org,
        robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        Eddie James <eajames@...ux.ibm.com>
Subject: [PATCH 1/2] 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>
---
 .../devicetree/bindings/fsi/ibm,i2cr.yaml     | 42 +++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/fsi/ibm,i2cr.yaml

diff --git a/Documentation/devicetree/bindings/fsi/ibm,i2cr.yaml b/Documentation/devicetree/bindings/fsi/ibm,i2cr.yaml
new file mode 100644
index 000000000000..929ca10988f9
--- /dev/null
+++ b/Documentation/devicetree/bindings/fsi/ibm,i2cr.yaml
@@ -0,0 +1,42 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/fsi/ibm,i2cr.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: IBM I2C Responder virtual FSI master
+
+maintainers:
+  - Eddie James <eajames@...ux.ibm.com>
+
+description: |
+  This binding describes an I2C device called the I2C Responder (I2CR). The
+  I2CR translates commands sent over I2C bus to FSI CFAM reads and writes or
+  SCOM operations. The CFAM access means that the I2CR can act as an FSI
+  master.
+
+properties:
+  compatible:
+    enum:
+      - ibm,i2cr
+
+   reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+ - |
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      i2cr@20 {
+        compatible = "ibm,i2cr";
+        reg = <0x20>;
+      };
+    };
-- 
2.31.1