From: Chu Lin <linchuyuan@google.com>
To: linchuyuan@google.com, jdelvare@suse.com, linux@roeck-us.net,
robh+dt@kernel.org, linux-hwmon@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v4 1/2] dt-bindings: hwmon: max20730: adding device tree doc for max20730
Date: Sun, 4 Oct 2020 03:14:44 +0000 [thread overview]
Message-ID: <20201004031445.2321090-2-linchuyuan@google.com> (raw)
In-Reply-To: <20201004031445.2321090-1-linchuyuan@google.com>
max20730 Integrated, Step-Down Switching Regulator with PMBus
Signed-off-by: Chu Lin <linchuyuan@google.com>
---
ChangeLog v1 -> v2
hwmon: pmbus: max20730:
- Don't do anything to the ret if an error is returned from pmbus_read_word
- avoid overflow when doing multiplication
ChangeLog v2 -> v3
dt-bindings: hwmon: max20730:
- Provide the binding documentation in yaml format
hwmon: pmbus: max20730:
- No change
ChangeLog v3 -> v4
dt-bindings: hwmon: max20730:
- Fix highefficiency to high efficiency in description
- Fix presents to present in vout-voltage-divider
- Add additionalProperties: false
hwmon: pmbus: max20730:
- No change
.../bindings/hwmon/maxim,max20730.yaml | 65 +++++++++++++++++++
1 file changed, 65 insertions(+)
create mode 100644 Documentation/devicetree/bindings/hwmon/maxim,max20730.yaml
diff --git a/Documentation/devicetree/bindings/hwmon/maxim,max20730.yaml b/Documentation/devicetree/bindings/hwmon/maxim,max20730.yaml
new file mode 100644
index 000000000000..93e86e3b4602
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/maxim,max20730.yaml
@@ -0,0 +1,65 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+
+$id: http://devicetree.org/schemas/hwmon/maxim,max20730.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim max20730
+
+maintainers:
+ - Jean Delvare <jdelvare@suse.com>
+ - Guenter Roeck <linux@roeck-us.net>
+
+description: |
+ The MAX20730 is a fully integrated, highly efficient switching regulator
+ with PMBus for applications operating from 4.5V to 16V and requiring
+ up to 25A (max) load. This single-chip regulator provides extremely
+ compact, high efficiency power-delivery solutions with high-precision
+ output voltages and excellent transient response.
+
+ Datasheets:
+ https://datasheets.maximintegrated.com/en/ds/MAX20730.pdf
+ https://datasheets.maximintegrated.com/en/ds/MAX20734.pdf
+ https://datasheets.maximintegrated.com/en/ds/MAX20743.pdf
+
+properties:
+ compatible:
+ enum:
+ - maxim,max20730
+ - maxim,max20734
+ - maxim,max20743
+
+ reg:
+ maxItems: 1
+
+ vout-voltage-divider:
+ description: |
+ If voltage divider present at vout, the voltage at voltage sensor pin
+ will be scaled. The properties will convert the raw reading to a more
+ meaningful number if voltage divider present. It has two numbers,
+ the first number is the output resistor, the second number is the total
+ resistance. Therefore, the adjusted vout is equal to
+ Vout = Vout * output_resistance / total resistance.
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ minItems: 2
+ maxItems: 2
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ max20730@10 {
+ compatible = "maxim,max20730";
+ reg = <0x10>;
+ vout-voltage-divider = <1000 2000>; // vout would be scaled to 0.5
+ };
+ };
--
2.28.0.806.g8561365e88-goog
next prev parent reply other threads:[~2020-10-04 3:14 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-04 3:14 [PATCH v4 0/2] hwmon: pmbus: max20730: adjust the vout base on Chu Lin
2020-10-04 3:14 ` Chu Lin [this message]
2020-10-06 21:17 ` [PATCH v4 1/2] dt-bindings: hwmon: max20730: adding device tree doc for max20730 Rob Herring
2020-10-06 21:55 ` Guenter Roeck
2020-10-04 3:14 ` [PATCH v4 2/2] hwmon: pmbus: max20730: adjust the vout reading given voltage divider Chu Lin
2020-10-04 15:43 ` Guenter Roeck
2020-10-05 3:07 ` Chu Lin
2020-10-05 5:24 ` Guenter Roeck
2020-10-05 15:03 ` Guenter Roeck
2020-10-06 21:55 ` Guenter Roeck
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