linux-kernel - Re: [PATCH 0/4] regulator: spacemit-p1: Fix voltage ranges and support board power tree

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Message-ID: <2e2c2754-fd3e-4fd3-aae4-d7af63e3b528@sirena.org.uk>
Date: Thu, 22 Jan 2026 13:28:48 +0000
From: Mark Brown <broonie@...nel.org>
To: Yixun Lan <dlan@...too.org>
Cc: Guodong Xu <guodong@...cstar.com>, Liam Girdwood <lgirdwood@...il.com>,
	Alex Elder <elder@...cstar.com>, Lee Jones <lee@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Troy Mitchell <troy.mitchell@...ux.spacemit.com>,
	Paul Walmsley <pjw@...nel.org>, Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>, Alexandre Ghiti <alex@...ti.fr>,
	linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org,
	spacemit@...ts.linux.dev, devicetree@...r.kernel.org
Subject: Re: [PATCH 0/4] regulator: spacemit-p1: Fix voltage ranges and
 support board power tree

On Thu, Jan 22, 2026 at 08:12:23PM +0800, Yixun Lan wrote:
> On 11:27 Thu 22 Jan     , Mark Brown wrote:

> > Patch 1 looks like it should be OK as is?

> then with patch 3, and for other boards (milkv jupiter), should have similar
> DT fix as patch 4..

Yes, changing the supply names would at a minimum need all the boards
updating (it's an ABI change so shouldn't really happen, but perhaps
there are few enough users for everyone to coordinate and it's what you
all prefer).  Patch 1 shouldn't have any effect unless a board already
specifies a wider range than the driver currently supports.

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