linux-kernel - [PATCH 1/3] dt-bindings: hwmon: fan: Add fan binding to schema

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 for Android: free password hash cracker in your pocket

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

Date:   Mon, 10 Oct 2022 22:30:44 +0200
From:   Naresh Solanki <naresh.solanki@...ements.com>
To:     devicetree@...r.kernel.org, Guenter Roeck <linux@...ck-us.net>,
        Jean Delvare <jdelvare@...e.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     linux-kernel@...r.kernel.org, linux-hwmon@...r.kernel.org,
        Patrick Rudolph <patrick.rudolph@...ements.com>,
        Naresh Solanki <Naresh.Solanki@...ements.com>
Subject: [PATCH 1/3] dt-bindings: hwmon: fan: Add fan binding to schema

Add common fan properties bindings to a schema.

Bindings for fan controllers can reference the common schema for the
fan

child nodes:

  patternProperties:
    "^fan@[0-2]":
      type: object
      allOf:
        - $ref: fan-common.yaml#

Signed-off-by: Naresh Solanki <Naresh.Solanki@...ements.com>
---
 .../devicetree/bindings/hwmon/fan-common.yaml | 77 +++++++++++++++++++
 1 file changed, 77 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/hwmon/fan-common.yaml

diff --git a/Documentation/devicetree/bindings/hwmon/fan-common.yaml b/Documentation/devicetree/bindings/hwmon/fan-common.yaml
new file mode 100644
index 000000000000..6bb990f00e94
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/fan-common.yaml
@@ -0,0 +1,77 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/hwmon/fan-common.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Common fan properties
+
+properties:
+  max-rpm:
+    description:
+      Max RPM supported by fan
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+  pulse-per-revolution:
+    description:
+      The number of pulse from fan sensor per revolution.
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+  target-rpm:
+    description:
+      Target RPM the fan should be configured during driver probe.
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+  pwm-frequency:
+    description:
+      PWM frequency for fan.
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+  pwm-polarity-inverse:
+    description:
+      PWM polarity for fan.
+    type: boolean
+
+  label:
+    description:
+      Optional fan label
+    $ref: /schemas/types.yaml#/definitions/string
+
+additionalProperties: true
+
+examples:
+  - |
+
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        fan-controller@30 {
+            compatible = "maxim,max6639";
+            reg = <0x30>;
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            fan@0 {
+                reg = <0>;
+                label = "CPU0_Fan";
+                max-rpm = <32000>;
+                pulse-per-revolution = <2>;
+                target-rpm = <2000>;
+                pwm-frequency = <25000>;
+            };
+
+            fan@1 {
+                reg = <1>;
+                label = "PCIe0_Fan";
+                max-rpm = <32000>;
+                pulse-per-revolution = <2>;
+                target-rpm = <2000>;
+                pwm-frequency = <25000>;
+            };
+
+        };
+    };
+
+...
-- 
2.37.3