From: Naresh Solanki <naresh.solanki@9elements.com>
To: linux-hwmon@vger.kernel.org, Jean Delvare <jdelvare@suse.com>,
Guenter Roeck <linux@roeck-us.net>,
Roland Stigge <stigge@antcom.de>
Cc: Marcello Sylvester Bauer <sylv@sylv.io>,
Naresh Solanki <Naresh.Solanki@9elements.com>
Subject: [PATCH 1/2] dt-bindings: hwmon: Add binding for max6639
Date: Thu, 7 Jul 2022 18:12:43 +0200 [thread overview]
Message-ID: <20220707161245.1229280-2-Naresh.Solanki@9elements.com> (raw)
From: Marcello Sylvester Bauer <sylv@sylv.io>
Add Devicetree binding documentation for Maxim MAX6639 temperature
monitor with PWM fan-speed controller.
Signed-off-by: Marcello Sylvester Bauer <sylv@sylv.io>
Signed-off-by: Naresh Solanki <Naresh.Solanki@9elements.com>
---
.../bindings/hwmon/maxim,max6639.yaml | 112 ++++++++++++++++++
1 file changed, 112 insertions(+)
create mode 100644 Documentation/devicetree/bindings/hwmon/maxim,max6639.yaml
diff --git a/Documentation/devicetree/bindings/hwmon/maxim,max6639.yaml b/Documentation/devicetree/bindings/hwmon/maxim,max6639.yaml
new file mode 100644
index 000000000000..c845fb989af2
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/maxim,max6639.yaml
@@ -0,0 +1,112 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+
+$id: http://devicetree.org/schemas/hwmon/maxim,max6639.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim max6639
+
+maintainers:
+ - Roland Stigge <stigge@antcom.de>
+
+description: |
+ The MAX6639 is a 2-channel temperature monitor with dual, automatic, PWM
+ fan-speed controller. It monitors its own temperature and one external
+ diode-connected transistor or the temperatures of two external diode-connected
+ transistors, typically available in CPUs, FPGAs, or GPUs.
+
+ Datasheets:
+ https://datasheets.maximintegrated.com/en/ds/MAX6639-MAX6639F.pdf
+
+properties:
+ compatible:
+ enum:
+ - maxim,max6639
+
+ reg:
+ maxItems: 1
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+required:
+ - compatible
+ - reg
+ - "fan@0"
+ - "fan@1"
+
+additionalProperties: false
+
+patternProperties:
+ "^fan@[0-1]$":
+ type: object
+ description: |
+ Represents the two fans and their specific configuration.
+
+ properties:
+ reg:
+ description: |
+ The fan number.
+ items:
+ minimum: 0
+ maximum: 1
+
+ pwm-polarity:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [0, 1]
+ default: 1
+ description:
+ PWM output is low at 100% duty cycle when this bit is set to zero. PWM
+ output is high at 100% duty cycle when this bit is set to 1.
+
+ pulses-per-revolution:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [1, 2, 3, 4]
+ default: 2
+ description:
+ Value specifying the number of pulses per revolution of the controlled
+ FAN.
+
+ maxim,rpm-range:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [2000, 4000, 8000, 16000]
+ default: 4000
+ description:
+ Scales the tachometer counter by setting the maximum (full-scale) value
+ of the RPM range for max6639.
+
+ required:
+ - reg
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ max6639@10 {
+ compatible = "maxim,max6639";
+ reg = <0x10>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ fan@0 {
+ reg = <0x0>;
+ pwm-polarity = <1>;
+ pulses-per-revolution = <2>;
+ maxim,rpm-range = <4000>;
+ };
+
+ fan@1 {
+ reg = <0x1>;
+ pwm-polarity = <1>;
+ pulses-per-revolution = <2>;
+ maxim,rpm-range = <4000>;
+ };
+ };
+ };
+...
--
2.35.3
next reply other threads:[~2022-07-07 16:13 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-07 16:12 Naresh Solanki [this message]
2022-07-07 16:12 ` [PATCH 2/2] hwmon: (max6639) Change from pdata to dt configuration Naresh Solanki
2022-07-22 15:13 ` [PATCH 1/2] dt-bindings: hwmon: Add binding for max6639 Guenter Roeck
2022-09-22 5:07 [PATCH 0/2] Add max6639 regulator and devicetree support Naresh Solanki
2022-09-22 5:07 ` [PATCH 1/2] dt-bindings: hwmon: Add binding for max6639 Naresh Solanki
2022-09-22 6:34 ` Krzysztof Kozlowski
2022-10-05 18:40 ` Guenter Roeck
2022-10-06 6:30 ` Naresh Solanki
2022-10-06 14:22 ` Guenter Roeck
2022-09-23 11:09 ` Patrick Rudolph
2022-09-29 19:32 ` Rob Herring
2022-10-05 13:16 ` Naresh Solanki
2022-10-05 15:45 ` Guenter Roeck
2023-04-18 11:32 Naresh Solanki
2023-04-18 16:17 ` Krzysztof Kozlowski
2023-04-19 9:00 ` Naresh Solanki
2023-04-19 9:04 ` Krzysztof Kozlowski
2023-04-19 9:15 ` Naresh Solanki
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