linux-kernel - Re: [PATCH 3/4] dt-bindings: mfd: add schema for 8ulp's SIM

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Date: Fri, 17 May 2024 11:24:57 -0400
From: Frank Li <Frank.li@....com>
To: Laurentiu Mihalcea <laurentiumihalcea111@...il.com>
Cc: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>, Lee Jones <lee@...nel.org>,
	Shawn Guo <shawnguo@...nel.org>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Liu Ying <victor.liu@....com>,
	Sascha Hauer <s.hauer@...gutronix.de>, laurentiu.mihalcea@....com,
	devicetree@...r.kernel.org, imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/4] dt-bindings: mfd: add schema for 8ulp's SIM

On Thu, May 16, 2024 at 11:40:30PM +0300, Laurentiu Mihalcea wrote:
> From: Laurentiu Mihalcea <laurentiu.mihalcea@....com>
> 
> Add schema for i.MX8ULP's SIM.
> 
> Signed-off-by: Liu Ying <victor.liu@....com>
> Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@....com>
> ---
>  .../bindings/mfd/nxp,imx8ulp-sim.yaml         | 71 +++++++++++++++++++
>  1 file changed, 71 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mfd/nxp,imx8ulp-sim.yaml
> 
> diff --git a/Documentation/devicetree/bindings/mfd/nxp,imx8ulp-sim.yaml b/Documentation/devicetree/bindings/mfd/nxp,imx8ulp-sim.yaml
> new file mode 100644
> index 000000000000..fbb17c06e3c0
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/nxp,imx8ulp-sim.yaml
> @@ -0,0 +1,71 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mfd/nxp,imx8ulp-sim.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: NXP i.MX8ULP System Integration Module
> +
> +maintainers:
> +  - Liu Ying <victor.liu@....com>
> +
> +description: |

Needn't "|"

> +  8ULP's SIM provides control and configuration options for
> +  some of the chip's components.
> +
> +properties:
> +  compatible:
> +    items:
> +      - enum:
> +          - nxp,imx8ulp-avd-sim
> +      - const: syscon
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +  mux-controller:
> +    $ref: ../mux/reg-mux.yaml
> +
> +  reset-controller:
> +    $ref: ../reset/nxp,imx8ulp-sim-reset.yaml

I think we directly use reset-ti-syscon.c 

> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +
> +allOf:
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: nxp,imx8ulp-avd-sim
> +    then:
> +      required:
> +        - reset-controller
> +        - mux-controller
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/imx8ulp-clock.h>
> +    syscon@...50000 {
> +      compatible = "nxp,imx8ulp-avd-sim", "syscon";
> +      reg = <0x2da50000 0x38>;
> +      clocks = <&pcc5 IMX8ULP_CLK_AVD_SIM>;
> +
> +      mux-controller {
> +        compatible = "mmio-mux";
> +        #mux-control-cells = <1>;
> +        mux-reg-masks = <0x8 0x00000200>;
> +      };
> +
> +      reset-controller {
> +        compatible = "nxp,imx8ulp-avd-sim-reset";
> +        #reset-cells = <1>;
> +      };
> +    };
> -- 
> 2.34.1
>