devicetree.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
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


  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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20201004031445.2321090-2-linchuyuan@google.com \
    --to=linchuyuan@google.com \
    --cc=devicetree@vger.kernel.org \
    --cc=jdelvare@suse.com \
    --cc=linux-hwmon@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux@roeck-us.net \
    --cc=robh+dt@kernel.org \
    --subject='Re: [PATCH v4 1/2] dt-bindings: hwmon: max20730: adding device tree doc for max20730' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).