linux-kernel - [PATCH v4 09/42] dt-bindings: soc: Add Cirrus EP93xx

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Message-Id: <20230915-ep93xx-v4-9-a1d779dcec10@maquefel.me>
Date:   Fri, 15 Sep 2023 11:10:51 +0300
From:   Nikita Shubin via B4 Relay 
        <devnull+nikita.shubin.maquefel.me@...nel.org>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Nikita Shubin <nikita.shubin@...uefel.me>,
        Alexander Sverdlin <alexander.sverdlin@...il.com>
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Arnd Bergmann <arnd@...db.de>,
        Alexander Sverdlin <alexander.sverdlin@...il.com>
Subject: [PATCH v4 09/42] dt-bindings: soc: Add Cirrus EP93xx

From: Nikita Shubin <nikita.shubin@...uefel.me>

Add device tree bindings for the Cirrus Logic EP93xx SoC.

Signed-off-by: Nikita Shubin <nikita.shubin@...uefel.me>
---
 .../bindings/arm/cirrus/cirrus,ep9301.yaml         | 38 ++++++++++++
 .../bindings/soc/cirrus/cirrus,ep9301-syscon.yaml  | 71 ++++++++++++++++++++++
 2 files changed, 109 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/cirrus/cirrus,ep9301.yaml b/Documentation/devicetree/bindings/arm/cirrus/cirrus,ep9301.yaml
new file mode 100644
index 000000000000..97dd8b6aefa9
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/cirrus/cirrus,ep9301.yaml
@@ -0,0 +1,38 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/cirrus/cirrus,ep9301.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus Logic EP93xx platforms
+
+description:
+  The EP93xx SoC is a ARMv4T-based with 200 MHz ARM9 CPU.
+
+maintainers:
+  - Alexander Sverdlin <alexander.sverdlin@...il.com>
+  - Nikita Shubin <nikita.shubin@...uefel.me>
+
+properties:
+  $nodename:
+    const: '/'
+  compatible:
+    oneOf:
+      - description: The TS-7250 is a compact, full-featured Single Board Computer (SBC)
+          based upon the Cirrus EP9302 ARM9 CPU
+        items:
+          - const: technologic,ts7250
+          - const: cirrus,ep9301
+
+      - description: The Liebherr BK3 is a derivate from ts7250 board
+        items:
+          - const: liebherr,bk3
+          - const: cirrus,ep9301
+
+      - description: EDB302 is an evaluation board by Cirrus Logic,
+          based on a Cirrus Logic EP9302 CPU
+        items:
+          - const: cirrus,edb9302
+          - const: cirrus,ep9301
+
+additionalProperties: true
diff --git a/Documentation/devicetree/bindings/soc/cirrus/cirrus,ep9301-syscon.yaml b/Documentation/devicetree/bindings/soc/cirrus/cirrus,ep9301-syscon.yaml
new file mode 100644
index 000000000000..1692250251d9
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/cirrus/cirrus,ep9301-syscon.yaml
@@ -0,0 +1,71 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/cirrus/cirrus,ep9301-syscon.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus Logic EP93xx Platforms System Controller
+
+maintainers:
+  - Alexander Sverdlin <alexander.sverdlin@...il.com>
+  - Nikita Shubin <nikita.shubin@...uefel.me>
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - cirrus,ep9302-syscon
+              - cirrus,ep9307-syscon
+              - cirrus,ep9312-syscon
+              - cirrus,ep9315-syscon
+          - const: cirrus,ep9301-syscon
+          - const: syscon
+          - const: simple-mfd
+      - items:
+          - const: cirrus,ep9301-syscon
+          - const: syscon
+          - const: simple-mfd
+
+  reg:
+    maxItems: 1
+
+  reboot:
+    type: object
+    $ref: /schemas/power/reset/cirrus,ep9301-reboot.yaml
+
+  clock-controller:
+    type: object
+    $ref: /schemas/clock/cirrus,ep9301-clk.yaml
+
+  pinctrl:
+    type: object
+    $ref: /schemas/pinctrl/cirrus,ep9301-pinctrl.yaml
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    syscon@...30000 {
+        compatible = "cirrus,ep9301-syscon",
+                     "syscon", "simple-mfd";
+        reg = <0x80930000 0x1000>;
+
+        clock-controller {
+            compatible = "cirrus,ep9301-clk";
+            #clock-cells = <1>;
+            clocks = <&xtali>;
+        };
+
+        pinctrl {
+            compatible = "cirrus,ep9301-pinctrl";
+        };
+
+        reboot {
+            compatible = "cirrus,ep9301-reboot";
+        };
+    };

-- 
2.39.2