linux-kernel - [PATCH v3 4/4] dt-bindings: fsl: convert fsl,layerscape-scfg to YAML

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Message-Id: <20220427075338.1156449-5-michael@walle.cc>
Date:   Wed, 27 Apr 2022 09:53:38 +0200
From:   Michael Walle <michael@...le.cc>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     Li Yang <leoyang.li@....com>, Michael Walle <michael@...le.cc>,
        Shawn Guo <shawnguo@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Marc Zyngier <maz@...nel.org>, linuxppc-dev@...ts.ozlabs.org,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v3 4/4] dt-bindings: fsl: convert fsl,layerscape-scfg to YAML

Convert the fsl,layerscape-scfg binding to the new YAML format.

In the device trees, the device node always have a "syscon"
compatible, which wasn't mentioned in the previous binding.

Also added, compared to the original binding, is the
interrupt-controller subnode as used in arch/arm/boot/dts/ls1021a.dtsi
as well as the litte-endian and big-endian properties.

Signed-off-by: Michael Walle <michael@...le.cc>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
changes since v2:
 - none

changes since v1:
 - moved to soc/fsl/fsl,layerscape-scfg.yaml
 - generic name for node in example
 - mention added "syscon" compatible in commit message
 - reference specific interrupt controller

 .../arm/freescale/fsl,layerscape-scfg.txt     | 19 ------
 .../bindings/soc/fsl/fsl,layerscape-scfg.yaml | 58 +++++++++++++++++++
 2 files changed, 58 insertions(+), 19 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/arm/freescale/fsl,layerscape-scfg.txt
 create mode 100644 Documentation/devicetree/bindings/soc/fsl/fsl,layerscape-scfg.yaml

diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,layerscape-scfg.txt b/Documentation/devicetree/bindings/arm/freescale/fsl,layerscape-scfg.txt
deleted file mode 100644
index 0ab67b0b216d..000000000000
--- a/Documentation/devicetree/bindings/arm/freescale/fsl,layerscape-scfg.txt
+++ /dev/null
@@ -1,19 +0,0 @@
-Freescale SCFG
-
-SCFG is the supplemental configuration unit, that provides SoC specific
-configuration and status registers for the chip. Such as getting PEX port
-status.
-
-Required properties:
-  - compatible: Should contain a chip-specific compatible string,
-	Chip-specific strings are of the form "fsl,<chip>-scfg",
-	The following <chip>s are known to be supported:
-	ls1012a, ls1021a, ls1043a, ls1046a, ls2080a.
-
-  - reg: should contain base address and length of SCFG memory-mapped registers
-
-Example:
-	scfg: scfg@...0000 {
-		compatible = "fsl,ls1021a-scfg";
-		reg = <0x0 0x1570000 0x0 0x10000>;
-	};
diff --git a/Documentation/devicetree/bindings/soc/fsl/fsl,layerscape-scfg.yaml b/Documentation/devicetree/bindings/soc/fsl/fsl,layerscape-scfg.yaml
new file mode 100644
index 000000000000..8d088b5fe823
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/fsl/fsl,layerscape-scfg.yaml
@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/fsl/fsl,layerscape-scfg.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale Layerscape Supplemental Configuration Unit
+
+maintainers:
+  - Shawn Guo <shawnguo@...nel.org>
+  - Li Yang <leoyang.li@....com>
+
+description: |
+  SCFG is the supplemental configuration unit, that provides SoC specific
+  configuration and status registers for the chip. Such as getting PEX port
+  status.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - fsl,ls1012a-scfg
+          - fsl,ls1021a-scfg
+          - fsl,ls1028a-scfg
+          - fsl,ls1043a-scfg
+          - fsl,ls1046a-scfg
+      - const: syscon
+
+  reg:
+    maxItems: 1
+
+  little-endian: true
+  big-endian: true
+
+  '#address-cells':
+    const: 1
+
+  '#size-cells':
+    const: 1
+
+  ranges: true
+
+patternProperties:
+  "^interrupt-controller@[a-z0-9]+$":
+    $ref: /schemas/interrupt-controller/fsl,ls-extirq.yaml#
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    syscon@...0000 {
+        compatible = "fsl,ls1021a-scfg", "syscon";
+        reg = <0x1570000 0x10000>;
+    };
-- 
2.30.2