linux-kernel - Re: [PATCH v3 1/3] dt-bindings: mfd: spacemit,p1: Add individual regulator supply properties

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Message-ID: <20260204-unlucky-raven-1ca0ed8f3392@spud>
Date: Wed, 4 Feb 2026 18:07:08 +0000
From: Conor Dooley <conor@...nel.org>
To: Guodong Xu <guodong@...cstar.com>
Cc: Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>,
	Yixun Lan <dlan@...too.org>, 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 v3 1/3] dt-bindings: mfd: spacemit,p1: Add individual
 regulator supply properties

On Wed, Feb 04, 2026 at 09:23:01PM +0800, Guodong Xu wrote:
> Add supply properties that match the P1 PMIC's actual hardware topology
> where each buck converter has its own VIN pin and LDO groups share
> common input pins. Supply names are defined according to the pinout
> names in the P1 datasheet.
> 
> The existing "vin-supply" is marked as deprecated to avoid warnings
> as dts and dt-bindings go via different trees.
> 
> Signed-off-by: Guodong Xu <guodong@...cstar.com>
> ---
> v3: Mark vin-supply as deprecated.
> v2: Remove providers from the dts example.
>     Pass the 'make dt_binding_check' test.
> ---
>  .../devicetree/bindings/mfd/spacemit,p1.yaml       | 53 +++++++++++++++++++++-
>  1 file changed, 52 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/mfd/spacemit,p1.yaml b/Documentation/devicetree/bindings/mfd/spacemit,p1.yaml
> index c6593ac6ef6a..41f784408e29 100644
> --- a/Documentation/devicetree/bindings/mfd/spacemit,p1.yaml
> +++ b/Documentation/devicetree/bindings/mfd/spacemit,p1.yaml
> @@ -28,7 +28,46 @@ properties:
>      maxItems: 1
>  
>    vin-supply:
> -    description: Input supply phandle.
> +    deprecated: true
> +    description:
> +      Main power input (deprecated). Use individual vin1-6, aldoin,
> +      dldoin1, and dldoin2 supply properties instead.

What's the point documenting the deprecated version if it doesn't work
anymore?

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