linux-kernel - Re: [PATCH v4 1/3] dt-bindings: thermal: sophgo,cv1800-thermal: Add Sophgo CV1800 thermal

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Message-ID: <20240716-cloning-canopy-a6799dc7f3b9@spud>
Date: Tue, 16 Jul 2024 16:48:48 +0100
From: Conor Dooley <conor@...nel.org>
To: Chen Wang <unicorn_wang@...look.com>
Cc: Haylen Chu <heylenay@...look.com>,
	"Rafael J. Wysocki" <rafael@...nel.org>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Zhang Rui <rui.zhang@...el.com>, Lukasz Luba <lukasz.luba@....com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Inochi Amaoto <inochiama@...look.com>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>,
	Jisheng Zhang <jszhang@...nel.org>, linux-pm@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-riscv@...ts.infradead.org
Subject: Re: [PATCH v4 1/3] dt-bindings: thermal: sophgo,cv1800-thermal: Add
 Sophgo CV1800 thermal

On Tue, Jul 16, 2024 at 08:43:19PM +0800, Chen Wang wrote:
> 
> On 2024/7/16 17:42, Haylen Chu wrote:
> > Add devicetree binding documentation for thermal sensors integrated in
> > Sophgo CV180X SoCs.
> > 
> > Signed-off-by: Haylen Chu <heylenay@...look.com>
> > ---
> >   .../thermal/sophgo,cv1800-thermal.yaml        | 55 +++++++++++++++++++
> 
> I see sometimes you call it cv1800, and in patch 3, the file name is
> cv180x_thermal.c, and for dts changes, you changed cv18xx.dtsi. Please unify
> it.
> 
> I think sg200x is new name for cv181x serias, so if you want to cover
> cv180x/sg200x, is cv18xx better?
> 
> >   1 file changed, 55 insertions(+)
> >   create mode 100644 Documentation/devicetree/bindings/thermal/sophgo,cv1800-thermal.yaml
> > 
> > diff --git a/Documentation/devicetree/bindings/thermal/sophgo,cv1800-thermal.yaml b/Documentation/devicetree/bindings/thermal/sophgo,cv1800-thermal.yaml
> > new file mode 100644
> > index 000000000000..58bd4432cd10
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/thermal/sophgo,cv1800-thermal.yaml
> > @@ -0,0 +1,55 @@
> > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/thermal/sophgo,cv1800-thermal.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Sophgo CV1800 on-SoC Thermal Sensor
> > +
> > +maintainers:
> > +  - Haylen Chu <heylenay@...look.com>
> > +
> > +description: Sophgo CV1800 on-SoC thermal sensor
> > +
> > +properties:
> > +  compatible:
> > +    enum:
> > +      - sophgo,cv1800-thermal
> cv18xx-thermal ?

Please, no wildcards in compatibles :/

> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  clocks:
> > +    description: The thermal sensor clock
> > +
> > +  interrupts:
> > +    maxItems: 1
> > +
> > +  sample-rate-hz:
> > +    minimum: 1
> > +    maximum: 1908
> > +    default: 1

I still don't think this belongs in the devicetree, but is actually
software policy.

Cheers,
Conor.

> > +
> > +  '#thermal-sensor-cells':
> > +    const: 0
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +  - clocks
> > +  - interrupts
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  - |
> > +        #include <dt-bindings/clock/sophgo,cv1800.h>
> > +        #include <dt-bindings/interrupt-controller/irq.h>
> > +        thermal-sensor@...0000 {
> > +            compatible = "sophgo,cv1800-thermal";
> > +            reg = <0x30e0000 0x100>;
> > +            clocks = <&clk CLK_TEMPSEN>;
> > +            interrupts = <16 IRQ_TYPE_LEVEL_HIGH>;
> > +            #thermal-sensor-cells = <0>;
> > +        };
> > +...

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