linux-kernel - Re: [PATCH 2/6] dt-bindings: soc: imx: add i.MX8MP vpu blk ctrl

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Date:   Tue, 12 Jul 2022 07:11:38 -0500
From:   Adam Ford <aford173@...il.com>
To:     "Peng Fan (OSS)" <peng.fan@....nxp.com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Lucas Stach <l.stach@...gutronix.de>,
        Sascha Hauer <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Marek Vasut <marex@...x.de>, paul.elder@...asonboard.com,
        Markus.Niebel@...tq-group.com,
        Alexander Stein <alexander.stein@...tq-group.com>,
        devicetree <devicetree@...r.kernel.org>,
        arm-soc <linux-arm-kernel@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Aisheng Dong <aisheng.dong@....com>,
        Peng Fan <peng.fan@....com>
Subject: Re: [PATCH 2/6] dt-bindings: soc: imx: add i.MX8MP vpu blk ctrl

On Tue, Jul 12, 2022 at 3:20 AM Peng Fan (OSS) <peng.fan@....nxp.com> wrote:
>
> From: Peng Fan <peng.fan@....com>
>
> i.MX8MP VPU blk ctrl module has similar design as i.MX8MM, so reuse
> the i.MX8MM VPU blk ctrl yaml file.
>
> Signed-off-by: Peng Fan <peng.fan@....com>
> ---
>  .../soc/imx/fsl,imx8mm-vpu-blk-ctrl.yaml        | 17 ++++++++++++++---
>  include/dt-bindings/power/imx8mp-power.h        |  4 ++++
>  2 files changed, 18 insertions(+), 3 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/soc/imx/fsl,imx8mm-vpu-blk-ctrl.yaml b/Documentation/devicetree/bindings/soc/imx/fsl,imx8mm-vpu-blk-ctrl.yaml
> index 26487daa64d9..edbd267cdd67 100644
> --- a/Documentation/devicetree/bindings/soc/imx/fsl,imx8mm-vpu-blk-ctrl.yaml
> +++ b/Documentation/devicetree/bindings/soc/imx/fsl,imx8mm-vpu-blk-ctrl.yaml
> @@ -4,20 +4,22 @@
>  $id: http://devicetree.org/schemas/soc/imx/fsl,imx8mm-vpu-blk-ctrl.yaml#
>  $schema: http://devicetree.org/meta-schemas/core.yaml#
>
> -title: NXP i.MX8MM VPU blk-ctrl
> +title: NXP i.MX8MM/P VPU blk-ctrl
>
>  maintainers:
>    - Lucas Stach <l.stach@...gutronix.de>
>
>  description:
> -  The i.MX8MM VPU blk-ctrl is a top-level peripheral providing access to
> +  The i.MX8MM/P VPU blk-ctrl is a top-level peripheral providing access to
>    the NoC and ensuring proper power sequencing of the VPU peripherals
>    located in the VPU domain of the SoC.
>
>  properties:
>    compatible:
>      items:
> -      - const: fsl,imx8mm-vpu-blk-ctrl
> +      - enum:
> +          - fsl,imx8mm-vpu-blk-ctrl
> +          - fsl,imx8mp-vpu-blk-ctrl
>        - const: syscon
>
>    reg:
> @@ -47,6 +49,15 @@ properties:
>        - const: g2
>        - const: h1
>
> +  interconnects:
> +    maxItems: 3
> +
> +  interconnect-names:
> +    items:
> +      - const: g1
> +      - const: g2
> +      - const: h1
> +
>  required:
>    - compatible
>    - reg
> diff --git a/include/dt-bindings/power/imx8mp-power.h b/include/dt-bindings/power/imx8mp-power.h
> index 14b9c5ac9c82..11d43fc7a18e 100644
> --- a/include/dt-bindings/power/imx8mp-power.h
> +++ b/include/dt-bindings/power/imx8mp-power.h
> @@ -52,4 +52,8 @@
>  #define IMX8MP_HDMIBLK_PD_HDCP                         7
>  #define IMX8MP_HDMIBLK_PD_HRV                          8
>
> +#define IMX8MP_VPUBLK_PD_G1                            0
> +#define IMX8MP_VPUBLK_PD_G2                            1
> +#define IMX8MP_VPUBLK_PD_H1                            2

Is H1 even correct for 8MP? The TRM calls the encoder a VC800E.  Since
the Encoder on the 8MM is a Hantro H1, this might add confusion if
people start thinking they are the same.
> +
>  #endif
> --
> 2.25.1
>