linux-kernel - Re: [PATCH 1/4] regulator: dt-bindings: add documentation for s2mpu05-pmic regulators

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Message-ID: <a5e8ebc0dfb35f700e29b75a6fc543cc@disroot.org>
Date: Wed, 05 Feb 2025 20:06:39 +0000
From: Kaustabh Chakraborty <kauschluss@...root.org>
To: Krzysztof Kozlowski <krzk@...nel.org>
Cc: Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>,
 Rob Herring <robh@...nel.org>, Conor Dooley <conor@...nel.org>, Lee Jones
 <lee@...nel.org>, Sergey Lisov <sleirsgoevy@...il.com>,
 linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
 devicetree@...r.kernel.org, Kaustabh Chakraborty <kauschluss@...root.org>
Subject: Re: [PATCH 1/4] regulator: dt-bindings: add documentation for
 s2mpu05-pmic regulators

On 2025-02-05 08:32, Krzysztof Kozlowski wrote:
>> +
>> +description: |
>> +  This is a part of device tree bindings for S2M and S5M family of Power
>> +  Management IC (PMIC).
>> +
>> +  The S2MPU05 provides buck and LDO regulators.
>> +
>> +  See also Documentation/devicetree/bindings/mfd/samsung,s2mps11.yaml for
>> +  additional information and example.
>> +
>> +patternProperties:
>> +  # 21 LDOs
>> +  "^LDO([1-9]|10|2[0-9]|3[0-5])$":
> 
> Why is there a gap in LDOs?

LDOs 11-24 are not implemented in the downstream kernel driver. On further
inspection I was able to find the register addresses, but minimum voltage
and step values are unknown. :(