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Message-ID: <20240815-starring-genetics-812e8f6bcd89@spud>
Date: Thu, 15 Aug 2024 16:21:18 +0100
From: Conor Dooley <conor@...nel.org>
To: Animesh Agarwal <animeshagarwal28@...il.com>
Cc: Daniel Baluta <daniel.baluta@....com>,
	Thomas Gleixner <tglx@...utronix.de>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org
Subject: Re: [PATCH] dt-bindings: interrupt-controller: nxp,lpc3220-mic:
 Convert to dtschema

On Wed, Aug 14, 2024 at 11:16:47PM +0530, Animesh Agarwal wrote:
> Convert the nxp,lpc3220-mic bindings to yaml format.
> 
> Cc: Daniel Baluta <daniel.baluta@....com>
> Signed-off-by: Animesh Agarwal <animeshagarwal28@...il.com>
> ---
>  .../interrupt-controller/nxp,lpc3220-mic.txt  | 58 -------------
>  .../interrupt-controller/nxp,lpc3220-mic.yaml | 85 +++++++++++++++++++
>  2 files changed, 85 insertions(+), 58 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/interrupt-controller/nxp,lpc3220-mic.txt
>  create mode 100644 Documentation/devicetree/bindings/interrupt-controller/nxp,lpc3220-mic.yaml
> 
> diff --git a/Documentation/devicetree/bindings/interrupt-controller/nxp,lpc3220-mic.txt b/Documentation/devicetree/bindings/interrupt-controller/nxp,lpc3220-mic.txt
> deleted file mode 100644
> index 0bfb3ba55f4c..000000000000
> --- a/Documentation/devicetree/bindings/interrupt-controller/nxp,lpc3220-mic.txt
> +++ /dev/null
> @@ -1,58 +0,0 @@
> -* NXP LPC32xx MIC, SIC1 and SIC2 Interrupt Controllers
> -
> -Required properties:
> -- compatible: "nxp,lpc3220-mic" or "nxp,lpc3220-sic".
> -- reg: should contain IC registers location and length.
> -- interrupt-controller: identifies the node as an interrupt controller.
> -- #interrupt-cells: the number of cells to define an interrupt, should be 2.
> -  The first cell is the IRQ number, the second cell is used to specify
> -  one of the supported IRQ types:
> -      IRQ_TYPE_EDGE_RISING = low-to-high edge triggered,
> -      IRQ_TYPE_EDGE_FALLING = high-to-low edge triggered,
> -      IRQ_TYPE_LEVEL_HIGH = active high level-sensitive,
> -      IRQ_TYPE_LEVEL_LOW = active low level-sensitive.
> -  Reset value is IRQ_TYPE_LEVEL_LOW.
> -
> -Optional properties:
> -- interrupts: empty for MIC interrupt controller, cascaded MIC
> -  hardware interrupts for SIC1 and SIC2
> -
> -Examples:
> -
> -	/* LPC32xx MIC, SIC1 and SIC2 interrupt controllers */
> -	mic: interrupt-controller@...08000 {
> -		compatible = "nxp,lpc3220-mic";
> -		reg = <0x40008000 0x4000>;
> -		interrupt-controller;
> -		#interrupt-cells = <2>;
> -	};
> -
> -	sic1: interrupt-controller@...0c000 {
> -		compatible = "nxp,lpc3220-sic";
> -		reg = <0x4000c000 0x4000>;
> -		interrupt-controller;
> -		#interrupt-cells = <2>;
> -
> -		interrupt-parent = <&mic>;
> -		interrupts = <0 IRQ_TYPE_LEVEL_LOW>,
> -			     <30 IRQ_TYPE_LEVEL_LOW>;
> -	};
> -
> -	sic2: interrupt-controller@...10000 {
> -		compatible = "nxp,lpc3220-sic";
> -		reg = <0x40010000 0x4000>;
> -		interrupt-controller;
> -		#interrupt-cells = <2>;
> -
> -		interrupt-parent = <&mic>;
> -		interrupts = <1 IRQ_TYPE_LEVEL_LOW>,
> -			     <31 IRQ_TYPE_LEVEL_LOW>;
> -	};
> -
> -	/* ADC */
> -	adc@...48000 {
> -		compatible = "nxp,lpc3220-adc";
> -		reg = <0x40048000 0x1000>;
> -		interrupt-parent = <&sic1>;
> -		interrupts = <7 IRQ_TYPE_LEVEL_HIGH>;
> -	};
> diff --git a/Documentation/devicetree/bindings/interrupt-controller/nxp,lpc3220-mic.yaml b/Documentation/devicetree/bindings/interrupt-controller/nxp,lpc3220-mic.yaml
> new file mode 100644
> index 000000000000..66f2227ed364
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/interrupt-controller/nxp,lpc3220-mic.yaml
> @@ -0,0 +1,85 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/interrupt-controller/nxp,lpc3220-mic.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: NXP LPC32xx MIC, SIC1 and SIC2 Interrupt Controllers
> +
> +maintainers:
> +  - Animesh Agarwal <animeshagarwal28@...il.com>
> +
> +properties:
> +  compatible:
> +    enum:
> +      - nxp,lpc3220-mic
> +      - nxp,lpc3220-sic
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupt-controller: true
> +
> +  '#interrupt-cells':
> +    const: 2
> +    description: |
> +      The first cell is the IRQ number, the second cell is used to specify one
> +      of the supported IRQ types:

> +          IRQ_TYPE_EDGE_RISING = low-to-high edge triggered,
> +          IRQ_TYPE_EDGE_FALLING = high-to-low edge triggered,
> +          IRQ_TYPE_LEVEL_HIGH = active high level-sensitive,
> +          IRQ_TYPE_LEVEL_LOW = active low level-sensitive.

These are teh standard definitions, so there's no need to have them
here?

> +      Reset value is IRQ_TYPE_LEVEL_LOW.
> +
> +  interrupts:
> +    items:
> +      - description: Interrupt for SIC1
> +      - description: Interrupt for SIC2
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupt-controller
> +  - '#interrupt-cells'
> +
> +if:
> +  properties:
> +    compatible:
> +      const: nxp,lpc3220-sic
> +
> +then:
> +  required:
> +    - interrupts

The text binding didn't require this, what has changed?

Cheers,
Conor.

> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +
> +    mic: interrupt-controller@...08000 {
> +        compatible = "nxp,lpc3220-mic";
> +        reg = <0x40008000 0x4000>;
> +        interrupt-controller;
> +        #interrupt-cells = <2>;
> +      };
> +
> +    sic1: interrupt-controller@...0c000 {
> +        compatible = "nxp,lpc3220-sic";
> +        reg = <0x4000c000 0x4000>;
> +        interrupt-controller;
> +        #interrupt-cells = <2>;
> +
> +        interrupt-parent = <&mic>;
> +        interrupts = <0 IRQ_TYPE_LEVEL_LOW>, <30 IRQ_TYPE_LEVEL_LOW>;
> +    };
> +
> +    sic2: interrupt-controller@...10000 {
> +        compatible = "nxp,lpc3220-sic";
> +        reg = <0x40010000 0x4000>;
> +        interrupt-controller;
> +        #interrupt-cells = <2>;
> +
> +        interrupt-parent = <&mic>;
> +        interrupts = <1 IRQ_TYPE_LEVEL_LOW>, <31 IRQ_TYPE_LEVEL_LOW>;
> +    };
> -- 
> 2.46.0
> 

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