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From:   Billy Tsai <billy_tsai@aspeedtech.com>
To:     <jdelvare@suse.com>, <linux@roeck-us.net>, <robh+dt@kernel.org>,
        <krzysztof.kozlowski+dt@linaro.org>, <joel@jms.id.au>,
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        <linux-hwmon@vger.kernel.org>, <devicetree@vger.kernel.org>,
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Subject: [v5 2/5] dt-bindings: hwmon: Add bindings for aspeed tach controller
Date:   Tue, 6 Jun 2023 17:45:32 +0800
Message-ID: <20230606094535.5388-3-billy_tsai@aspeedtech.com>
In-Reply-To: <20230606094535.5388-1-billy_tsai@aspeedtech.com>
References: <20230606094535.5388-1-billy_tsai@aspeedtech.com>
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Add the aspeed tach device which should be the child-node of pwm-tach mfd.

Signed-off-by: Billy Tsai <billy_tsai@aspeedtech.com>
---
 .../bindings/hwmon/aspeed,ast2600-tach.yaml   | 40 +++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/hwmon/aspeed,ast2600-tach.yaml

diff --git a/Documentation/devicetree/bindings/hwmon/aspeed,ast2600-tach.yaml b/Documentation/devicetree/bindings/hwmon/aspeed,ast2600-tach.yaml
new file mode 100644
index 000000000000..50b3d8c98d55
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/aspeed,ast2600-tach.yaml
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2021 Aspeed, Inc.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/hwmon/aspeed,ast2600-tach.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Aspeed Ast2600 Tach controller
+
+maintainers:
+  - Billy Tsai <billy_tsai@aspeedtech.com>
+
+description: |
+  The Aspeed Tach controller can support upto 16 fan input.
+  This module is part of the ast2600-pwm-tach multi-function device. For more
+  details see ../mfd/aspeed,ast2600-pwm-tach.yaml.
+
+properties:
+  compatible:
+    enum:
+      - aspeed,ast2600-tach
+
+patternProperties:
+  "^fan@[a-z0-9]+$":
+    type: object
+    description:
+      Child nodes used to enable the tach channel.
+    properties:
+      reg:
+        description:
+          The tach channel used for this node.
+        maxItems: 1
+
+    required:
+      - reg
+
+required:
+  - compatible
+
+additionalProperties: false
-- 
2.25.1