linux-kernel - [PATCH v2 1/2] dt-bindings: mfd: Add Realtek switch

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20240913024948.1317786-2-chris.packham@alliedtelesis.co.nz>
Date: Fri, 13 Sep 2024 14:49:47 +1200
From: Chris Packham <chris.packham@...iedtelesis.co.nz>
To: lee@...nel.org,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	tsbogend@...ha.franken.de,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-mips@...r.kernel.org
Cc: Chris Packham <chris.packham@...iedtelesis.co.nz>
Subject: [PATCH v2 1/2] dt-bindings: mfd: Add Realtek switch

Add device tree schema for the Realtek switch. Currently the only
supported feature is the syscon-reboot which is needed to be able to
reboot the board.

Signed-off-by: Chris Packham <chris.packham@...iedtelesis.co.nz>
---

Notes:
    Changes in v2:
    - use filename that matches the compatible
    - put maintainers after title
    - remove unnecessary label in example
    - Rework description to focus on what is implemented rather than what
      may be implemented in the future.

 .../bindings/mfd/realtek,rtl9302c-switch.yaml | 50 +++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mfd/realtek,rtl9302c-switch.yaml

diff --git a/Documentation/devicetree/bindings/mfd/realtek,rtl9302c-switch.yaml b/Documentation/devicetree/bindings/mfd/realtek,rtl9302c-switch.yaml
new file mode 100644
index 000000000000..902750d33bea
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/realtek,rtl9302c-switch.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/realtek,switch.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Realtek Switch with Internal CPU
+
+maintainers:
+  - Chris Packham <chris.packham@...iedtelesis.co.nz>
+
+description:
+  The RTL9302 is an Ethernet switch with an integrated CPU. A number of
+  different peripherals are accessed through a common register block,
+  represented here as a syscon node.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - realtek,rtl9302c-switch
+      - const: syscon
+      - const: simple-mfd
+
+  reg:
+    maxItems: 1
+
+  reboot:
+    $ref: /schemas/power/reset/syscon-reboot.yaml#
+
+required:
+  - compatible
+  - reg
+  - reboot
+
+additionalProperties: false
+
+examples:
+  - |
+    ethernet-switch@...00000 {
+      compatible = "realtek,rtl9302c-switch", "syscon", "simple-mfd";
+      reg = <0x1b000000 0x10000>;
+
+      reboot {
+        compatible = "syscon-reboot";
+        offset = <0x0c>;
+        value = <0x01>;
+      };
+    };
+
-- 
2.46.0