linux-kernel - Re: [PATCH] dt-binding: thermal: Convert marvell,armada-ap806-thermal to DT schema

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Message-ID: <20250801133435.GA3024231-robh@kernel.org>
Date: Fri, 1 Aug 2025 08:34:35 -0500
From: Rob Herring <robh@...nel.org>
To: Andrew Lunn <andrew@...n.ch>,
	Gregory Clement <gregory.clement@...tlin.com>,
	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	"Rafael J. Wysocki" <rafael@...nel.org>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Zhang Rui <rui.zhang@...el.com>, Lukasz Luba <lukasz.luba@....com>,
	Miquel Raynal <miquel.raynal@...tlin.com>
Cc: linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org
Subject: Re: [PATCH] dt-binding: thermal: Convert
 marvell,armada-ap806-thermal to DT schema

On Wed, Jul 02, 2025 at 06:00:29PM -0500, Rob Herring (Arm) wrote:
> Convert the Marvell Armada AP80x/CP110 thermal binding to schema. It is
> a straight forward conversion.
> 
> Signed-off-by: Rob Herring (Arm) <robh@...nel.org>
> ---
>  .../arm/marvell/ap80x-system-controller.txt   | 39 ----------------
>  .../arm/marvell/cp110-system-controller.txt   | 43 ------------------
>  .../thermal/marvell,armada-ap806-thermal.yaml | 44 +++++++++++++++++++
>  3 files changed, 44 insertions(+), 82 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/thermal/marvell,armada-ap806-thermal.yaml

Ping!

> 
> diff --git a/Documentation/devicetree/bindings/arm/marvell/ap80x-system-controller.txt b/Documentation/devicetree/bindings/arm/marvell/ap80x-system-controller.txt
> index c83245065d44..72de11bd2ef0 100644
> --- a/Documentation/devicetree/bindings/arm/marvell/ap80x-system-controller.txt
> +++ b/Documentation/devicetree/bindings/arm/marvell/ap80x-system-controller.txt
> @@ -115,45 +115,6 @@ ap_syscon: system-controller@...000 {
>  SYSTEM CONTROLLER 1
>  ===================
>  
> -Thermal:
> ---------
> -
> -For common binding part and usage, refer to
> -Documentation/devicetree/bindings/thermal/thermal*.yaml
> -
> -The thermal IP can probe the temperature all around the processor. It
> -may feature several channels, each of them wired to one sensor.
> -
> -It is possible to setup an overheat interrupt by giving at least one
> -critical point to any subnode of the thermal-zone node.
> -
> -Required properties:
> -- compatible: must be one of:
> -  * marvell,armada-ap806-thermal
> -- reg: register range associated with the thermal functions.
> -
> -Optional properties:
> -- interrupts: overheat interrupt handle. Should point to line 18 of the
> -  SEI irqchip. See interrupt-controller/interrupts.txt
> -- #thermal-sensor-cells: shall be <1> when thermal-zones subnodes refer
> -  to this IP and represents the channel ID. There is one sensor per
> -  channel. O refers to the thermal IP internal channel, while positive
> -  IDs refer to each CPU.
> -
> -Example:
> -ap_syscon1: system-controller@...000 {
> -	compatible = "syscon", "simple-mfd";
> -	reg = <0x6f8000 0x1000>;
> -
> -	ap_thermal: thermal-sensor@80 {
> -		compatible = "marvell,armada-ap806-thermal";
> -		reg = <0x80 0x10>;
> -		interrupt-parent = <&sei>;
> -		interrupts = <18>;
> -		#thermal-sensor-cells = <1>;
> -	};
> -};
> -
>  Cluster clocks:
>  ---------------
>  
> diff --git a/Documentation/devicetree/bindings/arm/marvell/cp110-system-controller.txt b/Documentation/devicetree/bindings/arm/marvell/cp110-system-controller.txt
> index 9d5d70c98058..54ff9f218328 100644
> --- a/Documentation/devicetree/bindings/arm/marvell/cp110-system-controller.txt
> +++ b/Documentation/devicetree/bindings/arm/marvell/cp110-system-controller.txt
> @@ -189,46 +189,3 @@ CP110_LABEL(syscon0): system-controller@...000 {
>  	};
>  
>  };
> -
> -SYSTEM CONTROLLER 1
> -===================
> -
> -Thermal:
> ---------
> -
> -The thermal IP can probe the temperature all around the processor. It
> -may feature several channels, each of them wired to one sensor.
> -
> -It is possible to setup an overheat interrupt by giving at least one
> -critical point to any subnode of the thermal-zone node.
> -
> -For common binding part and usage, refer to
> -Documentation/devicetree/bindings/thermal/thermal*.yaml
> -
> -Required properties:
> -- compatible: must be one of:
> -  * marvell,armada-cp110-thermal
> -- reg: register range associated with the thermal functions.
> -
> -Optional properties:
> -- interrupts-extended: overheat interrupt handle. Should point to
> -  a line of the ICU-SEI irqchip (116 is what is usually used by the
> -  firmware). The ICU-SEI will redirect towards interrupt line #37 of the
> -  AP SEI which is shared across all CPs.
> -  See interrupt-controller/interrupts.txt
> -- #thermal-sensor-cells: shall be <1> when thermal-zones subnodes refer
> -  to this IP and represents the channel ID. There is one sensor per
> -  channel. O refers to the thermal IP internal channel.
> -
> -Example:
> -CP110_LABEL(syscon1): system-controller@...000 {
> -	compatible = "syscon", "simple-mfd";
> -	reg = <0x6f8000 0x1000>;
> -
> -	CP110_LABEL(thermal): thermal-sensor@70 {
> -		compatible = "marvell,armada-cp110-thermal";
> -		reg = <0x70 0x10>;
> -		interrupts-extended = <&CP110_LABEL(icu_sei) 116 IRQ_TYPE_LEVEL_HIGH>;
> -		#thermal-sensor-cells = <1>;
> -	};
> -};
> diff --git a/Documentation/devicetree/bindings/thermal/marvell,armada-ap806-thermal.yaml b/Documentation/devicetree/bindings/thermal/marvell,armada-ap806-thermal.yaml
> new file mode 100644
> index 000000000000..fdbdf3c1273a
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/thermal/marvell,armada-ap806-thermal.yaml
> @@ -0,0 +1,44 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/thermal/marvell,armada-ap806-thermal.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Marvell Armada AP80x/CP110 thermal management
> +
> +maintainers:
> +  - Miquel Raynal <miquel.raynal@...tlin.com>
> +
> +properties:
> +  compatible:
> +    enum:
> +      - marvell,armada-ap806-thermal
> +      - marvell,armada-ap807-thermal
> +      - marvell,armada-cp110-thermal
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    description: overheat interrupt
> +    maxItems: 1
> +
> +  '#thermal-sensor-cells':
> +    description: Cell represents the channel ID. There is one sensor per
> +      channel. O refers to the thermal IP internal channel.
> +    const: 1
> +
> +required:
> +  - compatible
> +  - reg
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    thermal-sensor@80 {
> +        compatible = "marvell,armada-ap806-thermal";
> +        reg = <0x80 0x10>;
> +        interrupts = <18>;
> +        #thermal-sensor-cells = <1>;
> +    };
> -- 
> 2.47.2
>