Re: [PATCH v8 1/2] dt-bindings: mfd: Add bindings for MAX5970 and MAX5978

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Hi Krzysztof,

On 04-11-2022 03:19 am, Krzysztof Kozlowski wrote:
On 03/11/2022 17:34, Naresh Solanki wrote:
From: Marcello Sylvester Bauer <sylv@xxxxxxx>


Subject: drop redundant (second) word "bindings"

The MAX597x is a hot swap controller with configurable fault protection.
It also has 10bit ADC for current & voltage measurements.

Signed-off-by: Patrick Rudolph <patrick.rudolph@xxxxxxxxxxxxx>
Signed-off-by: Marcello Sylvester Bauer <sylv@xxxxxxx>
Signed-off-by: Naresh Solanki <Naresh.Solanki@xxxxxxxxxxxxx>

Isn't this third version per day? That's too many. Please keep it one
per day (usually).


---
  .../bindings/mfd/maxim,max5970.yaml           | 170 ++++++++++++++++++
  1 file changed, 170 insertions(+)
  create mode 100644 Documentation/devicetree/bindings/mfd/maxim,max5970.yaml

diff --git a/Documentation/devicetree/bindings/mfd/maxim,max5970.yaml b/Documentation/devicetree/bindings/mfd/maxim,max5970.yaml
new file mode 100644
index 000000000000..25079c518f68
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/maxim,max5970.yaml
@@ -0,0 +1,170 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/maxim,max5970.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Regulator for MAX5970 smart switch from Maxim Integrated.
+
+maintainers:
+  - Patrick Rudolph <patrick.rudolph@xxxxxxxxxxxxx>
+
+description: |
+  The smart switch provides no output regulation, but independent fault protection
+  and voltage and current sensing.
+  Programming is done through I2C bus.
+
+  Datasheets:
+    https://datasheets.maximintegrated.com/en/ds/MAX5970.pdf
+    https://datasheets.maximintegrated.com/en/ds/MAX5978.pdf
+
+properties:
+  compatible:
+    enum:
+      - maxim,max5970
+      - maxim,max5978
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  leds:
+    type: object
+    description:
+      Properties for single channel.

This description seems odd. You have here several leds, so what is the
single channel?

There are four leds. Will update in next revision.
+
+    properties:
+      "#address-cells":
+        const: 1
+
+      "#size-cells":
+        const: 0
+
+    patternProperties:
+      "^led@[0-3]$":
+        $ref: /schemas/leds/common.yaml#
+        type: object
+
+    additionalProperties: false
+
+  vss1-supply:
+    description: Supply of the first channel.
+
+  vss2-supply:
+    description: Supply of the first channel.
+
+  "#io-channel-cells":
+    const: 1
+
+  regulators:
+    type: object
+    description:
+      Properties for single channel.

That's another odd description.

Update. Willbe part of next version.
+
+    patternProperties:
+      "^(SW[0-1])$":

This should be lowercase. You also do not need ().

Done.
+        $ref: /schemas/regulator/regulator.yaml#
+        type: object
+
+      shunt-resistor-micro-ohms:
+        description: |
+          The value of curent sense resistor in microohms.
+          Must be specified for each channel.

Drop last sentence and instead add "required:" with proper indent.

Fixed. Will be part of next version.
+
+    additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - regulators
+  - vss1-supply
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          enum:
+            - maxim,max5970
+    then:
+      properties:
+        io-channels:
+          items:
+            - description: voltage first channel
+            - description: current first channel
+            - description: voltage second channel
+            - description: current second channel
+          description: |
+            Voltage and current for first and second channel.

I do not understand the description.

Also, add it in the existing example.

Have removed them because not being used by the driver.

+      required:
+        - vss2-supply
+    else:
+      properties:
+        io-channels:
+          items:
+            - description: voltage first channel
+            - description: current first channel
+          description: |
+            Voltage and current for first channel.

Same question for the description.

+
+additionalProperties: false
+

Best regards,
Krzysztof




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