linux-kernel - [PATCH 6/6] dt-bindings: fsi: Convert aspeed,ast2400-cf-fsi-master to DT schema

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Message-Id: <20250731-dt-fsi-cleanups-v1-6-e7b695a29fc3@kernel.org>
Date: Thu, 31 Jul 2025 17:12:23 -0500
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Joel Stanley <joel@....id.au>, 
 Andrew Jeffery <andrew@...econstruct.com.au>, 
 Benjamin Herrenschmidt <benh@...nel.crashing.org>, 
 Eddie James <eajames@...ux.ibm.com>, Ninad Palsule <ninad@...ux.ibm.com>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-aspeed@...ts.ozlabs.org, linux-kernel@...r.kernel.org, 
 linux-fsi@...ts.ozlabs.org
Subject: [PATCH 6/6] dt-bindings: fsi: Convert aspeed,ast2400-cf-fsi-master
 to DT schema

Convert the ASpeed Coldfire offloaded GPIO FSI master.

Drop the "fsi-master" compatible as it has not be used consistently and
doesn't represent anything.

Signed-off-by: Rob Herring (Arm) <robh@...nel.org>
---
 .../bindings/fsi/aspeed,ast2400-cf-fsi-master.yaml | 81 ++++++++++++++++++++++
 .../devicetree/bindings/fsi/fsi-master-ast-cf.txt  | 36 ----------
 2 files changed, 81 insertions(+), 36 deletions(-)

diff --git a/Documentation/devicetree/bindings/fsi/aspeed,ast2400-cf-fsi-master.yaml b/Documentation/devicetree/bindings/fsi/aspeed,ast2400-cf-fsi-master.yaml
new file mode 100644
index 000000000000..690b6c936f18
--- /dev/null
+++ b/Documentation/devicetree/bindings/fsi/aspeed,ast2400-cf-fsi-master.yaml
@@ -0,0 +1,81 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/fsi/aspeed,ast2400-cf-fsi-master.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ASpeed ColdFire offloaded GPIO-based FSI master
+
+maintainers:
+  - Eddie James <eajames@...ux.ibm.com>
+
+allOf:
+  - $ref: /schemas/fsi/fsi-controller.yaml#
+
+properties:
+  compatible:
+    enum:
+      - aspeed,ast2400-cf-fsi-master
+      - aspeed,ast2500-cf-fsi-master
+
+  clock-gpios:
+    maxItems: 1
+    description: GPIO for FSI clock
+
+  data-gpios:
+    maxItems: 1
+    description: GPIO for FSI data signal
+
+  enable-gpios:
+    maxItems: 1
+    description: GPIO for enable signal
+
+  trans-gpios:
+    maxItems: 1
+    description: GPIO for voltage translator enable
+
+  mux-gpios:
+    maxItems: 1
+    description:
+      GPIO for pin multiplexing with other functions (eg, external FSI masters)
+
+  memory-region:
+    maxItems: 1
+    description:
+      Reference to the reserved memory for the ColdFire. Must be 2M aligned on
+      AST2400 and 1M aligned on AST2500.
+
+  aspeed,cvic:
+    description: Reference to the CVIC node.
+    $ref: /schemas/types.yaml#/definitions/phandle
+
+  aspeed,sram:
+    description: Reference to the SRAM node.
+    $ref: /schemas/types.yaml#/definitions/phandle
+
+required:
+  - compatible
+  - clock-gpios
+  - data-gpios
+  - enable-gpios
+  - trans-gpios
+  - mux-gpios
+  - memory-region
+  - aspeed,cvic
+  - aspeed,sram
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    fsi-master {
+      compatible = "aspeed,ast2500-cf-fsi-master";
+      clock-gpios = <&gpio 0>;
+      data-gpios = <&gpio 1>;
+      enable-gpios = <&gpio 2>;
+      trans-gpios = <&gpio 3>;
+      mux-gpios = <&gpio 4>;
+      memory-region = <&coldfire_memory>;
+      aspeed,cvic = <&cvic>;
+      aspeed,sram = <&sram>;
+    };
diff --git a/Documentation/devicetree/bindings/fsi/fsi-master-ast-cf.txt b/Documentation/devicetree/bindings/fsi/fsi-master-ast-cf.txt
deleted file mode 100644
index 3dc752db748b..000000000000
--- a/Documentation/devicetree/bindings/fsi/fsi-master-ast-cf.txt
+++ /dev/null
@@ -1,36 +0,0 @@
-Device-tree bindings for ColdFire offloaded gpio-based FSI master driver
-------------------------------------------------------------------------
-
-Required properties:
- - compatible =
-	"aspeed,ast2400-cf-fsi-master" for an AST2400 based system
-   or
-	"aspeed,ast2500-cf-fsi-master" for an AST2500 based system
-
- - clock-gpios = <gpio-descriptor>;	: GPIO for FSI clock
- - data-gpios = <gpio-descriptor>;	: GPIO for FSI data signal
- - enable-gpios = <gpio-descriptor>;	: GPIO for enable signal
- - trans-gpios = <gpio-descriptor>;	: GPIO for voltage translator enable
- - mux-gpios = <gpio-descriptor>;	: GPIO for pin multiplexing with other
-                                          functions (eg, external FSI masters)
- - memory-region = <phandle>;		: Reference to the reserved memory for
-                                          the ColdFire. Must be 2M aligned on
-					  AST2400 and 1M aligned on AST2500
- - aspeed,sram = <phandle>;		: Reference to the SRAM node.
- - aspeed,cvic = <phandle>;		: Reference to the CVIC node.
-
-Examples:
-
-    fsi-master {
-        compatible = "aspeed,ast2500-cf-fsi-master", "fsi-master";
-
-	clock-gpios = <&gpio 0>;
-        data-gpios = <&gpio 1>;
-        enable-gpios = <&gpio 2>;
-        trans-gpios = <&gpio 3>;
-        mux-gpios = <&gpio 4>;
-
-	memory-region = <&coldfire_memory>;
-	aspeed,sram = <&sram>;
-	aspeed,cvic = <&cvic>;
-    }

-- 
2.47.2