linux-kernel - Re: [PATCH 1/2] dt-bindings: clock: support i.MX93 Anatop

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Date:   Wed, 18 Oct 2023 14:55:02 +0100
From:   Conor Dooley <conor@...nel.org>
To:     "Peng Fan (OSS)" <peng.fan@....nxp.com>
Cc:     robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        conor+dt@...nel.org, shawnguo@...nel.org, s.hauer@...gutronix.de,
        sboyd@...nel.org, abelvesa@...nel.org, kernel@...gutronix.de,
        estevam@...il.com, linux-imx@....com, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, inux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org, Peng Fan <peng.fan@....com>
Subject: Re: [PATCH 1/2] dt-bindings: clock: support i.MX93 Anatop

On Wed, Oct 18, 2023 at 04:44:13PM +0800, Peng Fan (OSS) wrote:
> From: Peng Fan <peng.fan@....com>
> 
> Support i.MX93 Anatop which generates PLL and feeds into CCM.

What is "CCM". How do you "generate" a PLL?

> Signed-off-by: Peng Fan <peng.fan@....com>
> ---
>  .../bindings/clock/fsl,imx93-anatop.yaml      | 41 +++++++++++++++++++
>  1 file changed, 41 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/clock/fsl,imx93-anatop.yaml
> 
> diff --git a/Documentation/devicetree/bindings/clock/fsl,imx93-anatop.yaml b/Documentation/devicetree/bindings/clock/fsl,imx93-anatop.yaml
> new file mode 100644
> index 000000000000..9585c9e4ee40
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/fsl,imx93-anatop.yaml
> @@ -0,0 +1,41 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/clock/fsl,imx93-anatop.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: NXP i.MX93 Anatop Module

I see there are also "anatop regulators" on some imx SoCs, just calling
this "anatop module" does not seem sufficiently descriptive.

> +
> +maintainers:
> +  - Peng Fan <peng.fan@....com>
> +
> +description: |

Drop the |, you don't need it.

> +  NXP i.MX93 anatop PLL module which generates PLL to CCM root.
> +
> +properties:
> +  compatible:
> +    items:
> +      - const: fsl,imx93-anatop
> +
> +  reg:
> +    maxItems: 1
> +
> +  '#clock-cells':
> +    const: 1
> +
> +required:
> +  - compatible
> +  - reg
> +  - '#clock-cells'
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    anatop: clock-controller@...80000 {

and the label is is not used, so should be dropped.

Thanks,
Conor.

> +        compatible = "fsl,imx93-anatop";
> +        reg = <0x44480000 0x2000>;
> +        #clock-cells = <1>;
> +    };
> +
> +...
> -- 
> 2.37.1
> 

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