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Message-Id: <20231204055650.788388-2-kcfeng0@nuvoton.com>
Date:   Mon,  4 Dec 2023 13:56:49 +0800
From:   baneric926@...il.com
To:     jdelvare@...e.com, linux@...ck-us.net, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        corbet@....net
Cc:     linux-hwmon@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
        openbmc@...ts.ozlabs.org, kwliu@...oton.com, kcfeng0@...oton.com,
        DELPHINE_CHIU@...ynn.com, Bonnie_Lo@...ynn.com
Subject: [PATCH v1 1/2] dt-bindings: hwmon: Add nct736x bindings

From: Ban Feng <kcfeng0@...oton.com>

This change documents the device tree bindings for the Nuvoton
NCT7362Y, NCT7363Y driver.

Signed-off-by: Ban Feng <kcfeng0@...oton.com>
---
 .../bindings/hwmon/nuvoton,nct736x.yaml       | 80 +++++++++++++++++++
 MAINTAINERS                                   |  6 ++
 2 files changed, 86 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/hwmon/nuvoton,nct736x.yaml

diff --git a/Documentation/devicetree/bindings/hwmon/nuvoton,nct736x.yaml b/Documentation/devicetree/bindings/hwmon/nuvoton,nct736x.yaml
new file mode 100644
index 000000000000..f98fd260a20f
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/nuvoton,nct736x.yaml
@@ -0,0 +1,80 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+
+$id: http://devicetree.org/schemas/hwmon/nuvoton,nct736x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Nuvoton NCT736X Hardware Monitoring IC
+
+maintainers:
+  - Ban Feng <kcfeng0@...oton.com>
+
+description: |
+  The NCT736X is a Fan controller which provides up to 16 independent
+  FAN input monitors, and up to 16 independent PWM output with SMBus interface.
+  Besides, NCT7363Y has a built-in watchdog timer which is used for
+  conditionally generating a system reset output (INT#).
+
+additionalProperties: false
+
+properties:
+  compatible:
+    enum:
+      - nuvoton,nct7362
+      - nuvoton,nct7363
+
+  reg:
+    maxItems: 1
+
+  nuvoton,pwm-mask:
+    description: |
+      each bit means PWMx enable/disable setting, where x = 0~15.
+      0: disabled, 1: enabled
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 0x0
+    maximum: 0xFFFF
+    default: 0x0
+
+  nuvoton,fanin-mask:
+    description: |
+      each bit means FANINx monitoring enable/disable setting,
+      where x = 0~15.
+      0: disabled, 1: enabled
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 0x0
+    maximum: 0xFFFF
+    default: 0x0
+
+  nuvoton,wdt-timeout:
+    description: |
+      Watchdog Timer time configuration for NCT7363Y, as below
+      0: 15 sec (default)
+      1: 7.5 sec
+      2: 3.75 sec
+      3: 30 sec
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [0, 1, 2, 3]
+    default: 0
+
+required:
+  - compatible
+  - reg
+  - nuvoton,pwm-mask
+  - nuvoton,fanin-mask
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        nct7363@22 {
+            compatible = "nuvoton,nct7363";
+            reg = <0x22>;
+
+            nuvoton,pwm-mask = <0x003F>;
+            nuvoton,fanin-mask = <0x003F>;
+            nuvoton,wdt-timeout = <0x3>;
+        };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index 012df8ccf34e..eef44c13278c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -14900,6 +14900,12 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/hwmon/nuvoton,nct6775.yaml
 F:	drivers/hwmon/nct6775-i2c.c
 
+NCT736X HARDWARE MONITOR DRIVER
+M:	Ban Feng <kcfeng0@...oton.com>
+L:	linux-hwmon@...r.kernel.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/hwmon/nuvoton,nct736x.yaml
+
 NETDEVSIM
 M:	Jakub Kicinski <kuba@...nel.org>
 S:	Maintained
-- 
2.34.1

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