linux-kernel - [PATCH v5 1/2] dt-bindings: hwmon: Add nuvoton,nct6775

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Message-Id: <20220428012707.24921-2-zev@bewilderbeest.net>
Date:   Wed, 27 Apr 2022 18:27:06 -0700
From:   Zev Weiss <zev@...ilderbeest.net>
To:     Guenter Roeck <linux@...ck-us.net>,
        Jean Delvare <jdelvare@...e.com>, linux-hwmon@...r.kernel.org,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org
Cc:     Zev Weiss <zev@...ilderbeest.net>, Renze Nicolai <renze@...lus.nl>,
        Oleksandr Natalenko <oleksandr@...alenko.name>,
        openbmc@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        Krzysztof Kozlowski <krzk@...nel.org>
Subject: [PATCH v5 1/2] dt-bindings: hwmon: Add nuvoton,nct6775

These Super I/O chips have an i2c interface that some systems expose
to a BMC; the BMC's device tree can now describe that via this
binding.

Signed-off-by: Zev Weiss <zev@...ilderbeest.net>
---
 .../bindings/hwmon/nuvoton,nct6775.yaml       | 57 +++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/hwmon/nuvoton,nct6775.yaml

diff --git a/Documentation/devicetree/bindings/hwmon/nuvoton,nct6775.yaml b/Documentation/devicetree/bindings/hwmon/nuvoton,nct6775.yaml
new file mode 100644
index 000000000000..358b262431fc
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/nuvoton,nct6775.yaml
@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+
+$id: http://devicetree.org/schemas/hwmon/nuvoton,nct6775.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Nuvoton NCT6775 and compatible Super I/O chips
+
+maintainers:
+  - Zev Weiss <zev@...ilderbeest.net>
+
+properties:
+  compatible:
+    enum:
+      - nuvoton,nct6106
+      - nuvoton,nct6116
+      - nuvoton,nct6775
+      - nuvoton,nct6776
+      - nuvoton,nct6779
+      - nuvoton,nct6791
+      - nuvoton,nct6792
+      - nuvoton,nct6793
+      - nuvoton,nct6795
+      - nuvoton,nct6796
+      - nuvoton,nct6797
+      - nuvoton,nct6798
+
+  reg:
+    maxItems: 1
+
+  nuvoton,tsi-channel-mask:
+    description:
+      Bitmask indicating which TSI temperature sensor channels are
+      active.  LSB is TSI0, bit 1 is TSI1, etc.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    maximum: 0xff
+    default: 0
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        superio@4d {
+            compatible = "nuvoton,nct6779";
+            reg = <0x4d>;
+            nuvoton,tsi-channel-mask = <0x03>;
+        };
+    };
-- 
2.36.0