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Sender: Guenter Roeck <groeck7@gmail.com>
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Date: Fri, 23 Feb 2024 16:12:18 -0800
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Subject: Re: [PATCH v2 4/5] hwmon: (pmbus/lm25066) Use PMBUS_REGULATOR_ONE to
 declare regulator
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To: Zev Weiss <zev@bewilderbeest.net>, Conor Dooley <conor@kernel.org>
Cc: Conor Dooley <conor.dooley@microchip.com>,
 Jean Delvare <jdelvare@suse.com>, Rob Herring <robh@kernel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
 Conor Dooley <conor+dt@kernel.org>, Liam Girdwood <lgirdwood@gmail.com>,
 Mark Brown <broonie@kernel.org>,
 Patrick Rudolph <patrick.rudolph@9elements.com>,
 Peter Yin <peteryin.openbmc@gmail.com>,
 Alexander Stein <alexander.stein@ew.tq-group.com>,
 linux-hwmon@vger.kernel.org, devicetree@vger.kernel.org,
 linux-kernel@vger.kernel.org, Naresh Solanki <naresh.solanki@9elements.com>
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From: Guenter Roeck <linux@roeck-us.net>
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On 2/23/24 15:26, Zev Weiss wrote:
> On Fri, Feb 23, 2024 at 03:16:28PM PST, Zev Weiss wrote:
>> On Fri, Feb 23, 2024 at 08:21:08AM PST, Conor Dooley wrote:
>>> From: Guenter Roeck <linux@roeck-us.net>
>>>
>>> If a chip only provides a single regulator, it should be named 'vout'
>>> and not 'vout0'. Declare regulator using PMBUS_REGULATOR_ONE() to make
>>> that happen.
>>>
> 
> 
>>
>> Given (AFAICT) the >lack of any combined dts & driver patches anywhere in the kernel git history I guess maybe doing both atomically in a single commit might not be considered kosher, but could it at least be included in the same patch series?
>>
> 
> Ah, except I realize now I neglected to pass '--full-diff' to 'git log' when checking that, and after fixing that I see there is in fact some precedent for commits changing device-trees and driver code together, so ideally that would be my preference here too.
> 

That is not going to happen in the hwmon subsystem unless something slips by.
In a large project like the Linux kernel you'll find precedents for everything,
so citing one is not a valid argument.

As a general rule, I don't apply patches in .dts[i] files through the hwmon
branch at all, not even as part of a patch series. Architecture maintainers
tend to strongly oppose that idea, for the simple reason that it creates
the risk of merge conflicts and thus of bugs during commit windows.

Guenter