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Message-Id: <20240514205454.158157-1-eajames@linux.ibm.com>
Date: Tue, 14 May 2024 15:54:54 -0500
From: Eddie James <eajames@...ux.ibm.com>
To: linux-i2c@...r.kernel.org
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
eajames@...ux.ibm.com, conor+dt@...nel.org, krzk+dt@...nel.org,
robh@...nel.org, andi.shyti@...nel.org
Subject: [PATCH v5] dt-bindings: i2c: i2c-fsi: Convert to json-schema
Convert to json-schema for the FSI-attached I2C controller.
Signed-off-by: Eddie James <eajames@...ux.ibm.com>
---
This patch was previously included in
https://lore.kernel.org/all/20240429210131.373487-1-eajames@linux.ibm.com/
Changes since v4:
- Add patternProperties for the busses that will reference the i2c-controller
schema, since the root node provides multiple i2c busses.
Changes since v3:
- Update MAINTAINERS
- Change commit message to match similar commits
.../devicetree/bindings/i2c/i2c-fsi.txt | 40 ----------
.../devicetree/bindings/i2c/ibm,i2c-fsi.yaml | 76 +++++++++++++++++++
MAINTAINERS | 2 +-
3 files changed, 77 insertions(+), 41 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/i2c/i2c-fsi.txt
create mode 100644 Documentation/devicetree/bindings/i2c/ibm,i2c-fsi.yaml
diff --git a/Documentation/devicetree/bindings/i2c/i2c-fsi.txt b/Documentation/devicetree/bindings/i2c/i2c-fsi.txt
deleted file mode 100644
index b1be2ceb7e696..0000000000000
--- a/Documentation/devicetree/bindings/i2c/i2c-fsi.txt
+++ /dev/null
@@ -1,40 +0,0 @@
-Device-tree bindings for FSI-attached I2C master and busses
------------------------------------------------------------
-
-Required properties:
- - compatible = "ibm,i2c-fsi";
- - reg = < address size >; : The FSI CFAM address and address
- space size.
- - #address-cells = <1>; : Number of address cells in child
- nodes.
- - #size-cells = <0>; : Number of size cells in child nodes.
- - child nodes : Nodes to describe busses off the I2C
- master.
-
-Child node required properties:
- - reg = < port number > : The port number on the I2C master.
-
-Child node optional properties:
- - child nodes : Nodes to describe devices on the I2C
- bus.
-
-Examples:
-
- i2c@...0 {
- compatible = "ibm,i2c-fsi";
- reg = < 0x1800 0x400 >;
- #address-cells = <1>;
- #size-cells = <0>;
-
- i2c-bus@0 {
- reg = <0>;
- };
-
- i2c-bus@1 {
- reg = <1>;
-
- eeprom@50 {
- compatible = "vendor,dev-name";
- };
- };
- };
diff --git a/Documentation/devicetree/bindings/i2c/ibm,i2c-fsi.yaml b/Documentation/devicetree/bindings/i2c/ibm,i2c-fsi.yaml
new file mode 100644
index 0000000000000..62e70aaea9d56
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/ibm,i2c-fsi.yaml
@@ -0,0 +1,76 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/i2c/ibm,i2c-fsi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: IBM FSI-attached I2C controller
+
+maintainers:
+ - Eddie James <eajames@...ux.ibm.com>
+
+description:
+ This I2C controller is an FSI CFAM engine, providing access to a number of
+ I2C busses. Therefore this node will always be a child of an FSI CFAM node.
+
+properties:
+ compatible:
+ enum:
+ - ibm,i2c-fsi
+
+ reg:
+ items:
+ - description: FSI slave address
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+patternProperties:
+ "^i2c(@.*)?":
+ type: object
+ properties:
+ reg:
+ maxItems: 1
+
+ required:
+ - reg
+
+ allOf:
+ - $ref: /schemas/i2c/i2c-controller.yaml#
+
+ unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c@...0 {
+ compatible = "ibm,i2c-fsi";
+ reg = <0x1800 0x400>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ i2c-bus@0 {
+ reg = <0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ i2c-bus@1 {
+ reg = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ eeprom@50 {
+ compatible = "atmel,24c64";
+ reg = <0x50>;
+ };
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index b2df2cc60dc78..86c1c8dd86093 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8976,7 +8976,7 @@ M: Eddie James <eajames@...ux.ibm.com>
L: linux-i2c@...r.kernel.org
L: openbmc@...ts.ozlabs.org (moderated for non-subscribers)
S: Maintained
-F: Documentation/devicetree/bindings/i2c/i2c-fsi.txt
+F: Documentation/devicetree/bindings/i2c/ibm,i2c-fsi.yaml
F: drivers/i2c/busses/i2c-fsi.c
FSI-ATTACHED SPI DRIVER
--
2.39.3
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