linux-kernel - Re: [PATCH 2/3] dt-bindings: regulator: Add mps,mpq2286 power-management IC

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Message-ID: <d7eb272e-8abb-c307-4aa8-b0af3f943453@linumiz.com>
Date:   Mon, 11 Sep 2023 12:42:29 +0530
From:   Saravanan Sekar <saravanan@...umiz.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        sravanhome@...il.com, lgirdwood@...il.com, broonie@...nel.org,
        robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        conor+dt@...nel.org, linux@...ck-us.net, jdelvare@...e.com
Cc:     linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        linux-hwmon@...r.kernel.org
Subject: Re: [PATCH 2/3] dt-bindings: regulator: Add mps,mpq2286
 power-management IC

On 11/09/23 11:56, Krzysztof Kozlowski wrote:
> On 11/09/2023 05:41, Saravanan Sekar wrote:
>> Document mpq2286 power-management IC
>>
>> Signed-off-by: Saravanan Sekar <saravanan@...umiz.com>
> 
> Please use subject prefixes matching the subsystem. You can get them for
> example with `git log --oneline -- DIRECTORY_OR_FILE` on the directory
> your patch is touching. It's: regulator: dt-bindings:

Thanks for your time to review. git log has mix of "regulator: 
dt-bindings" and "dt-bindings: regualtor". I had referred my own 
accepted driver regulator/mps,mpq7932.yaml

> 
>> ---
>>   .../bindings/regulator/mps,mpq2286.yaml       | 59 +++++++++++++++++++
>>   1 file changed, 59 insertions(+)
>>   create mode 100644 Documentation/devicetree/bindings/regulator/mps,mpq2286.yaml
>>
>> diff --git a/Documentation/devicetree/bindings/regulator/mps,mpq2286.yaml b/Documentation/devicetree/bindings/regulator/mps,mpq2286.yaml
>> new file mode 100644
>> index 000000000000..d00d887870a9
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/regulator/mps,mpq2286.yaml
>> @@ -0,0 +1,59 @@
>> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/regulator/mps,mpq2286.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Monolithic Power System MPQ2286 PMIC
>> +
>> +maintainers:
>> +  - Saravanan Sekar <saravanan@...umiz.com>
>> +
>> +properties:
>> +  compatible:
>> +    enum:
>> +      - mps,mpq2286
>> +
>> +  reg:
>> +    maxItems: 1
>> +
>> +  regulators:
>> +    type: object
>> +
>> +    properties:
>> +      "buck0":
> 
> You did not test it... Sigh. Anyway, there is no need for entire
> regulators node for one regulator. Can the device do anything else than
> being a regulator?
> 

I tested it, but documentation is not updated with test findings (buck0).

Other chipset has multiple regulator so dts has regulators node to keep 
the driver common

Primarily device is a regulator with pmbus capability like fault status 
(OV,OC, VIN, VOUT, Power good status), temperature status.

> Best regards,
> Krzysztof
>
Thanks,
Saravanan