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From:   Rob Herring <robh@kernel.org>
Date:   Wed, 21 Aug 2019 08:35:53 -0500
Message-ID: <CAL_Jsq+pyaYD2C8G1WZm1fL-wgkJvDYBkp0TwJTmQVKP-gHPXQ@mail.gmail.com>
Subject: Re: [PATCH v3 1/2] dt-bindings: phy: intel-emmc-phy: Add YAML schema
 for LGM eMMC PHY
To:     "Ramuthevar,Vadivel MuruganX" 
        <vadivel.muruganx.ramuthevar@linux.intel.com>
Cc:     Kishon Vijay Abraham I <kishon@ti.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        devicetree@vger.kernel.org,
        Andy Shevchenko <andriy.shevchenko@intel.com>,
        cheol.yong.kim@intel.com, qi-ming.wu@intel.com,
        peter.harliman.liem@intel.com
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On Wed, Aug 21, 2019 at 5:11 AM Ramuthevar,Vadivel MuruganX
<vadivel.muruganx.ramuthevar@linux.intel.com> wrote:
>
> From: Ramuthevar Vadivel Murugan <vadivel.muruganx.ramuthevar@linux.intel.com>
>
> Add a YAML schema to use the host controller driver with the
> eMMC PHY on Intel's Lightning Mountain SoC.
>
> Signed-off-by: Ramuthevar Vadivel Murugan <vadivel.muruganx.ramuthevar@linux.intel.com>
> ---
> changes in v3:
>   - resolve 'make dt_binding_check' warnings
>
> changes in v2:
>   As per Rob Herring review comments, the following updates
>  - change GPL-2.0 -> (GPL-2.0-only OR BSD-2-Clause)
>  - filename is the compatible string plus .yaml
>  - LGM: Lightning Mountain
>  - update maintainer
>  - add intel,syscon under property list
>  - keep one example instead of two
> ---
>  .../bindings/phy/intel,lgm-emmc-phy.yaml           | 59 ++++++++++++++++++++++
>  1 file changed, 59 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.yaml
>
> diff --git a/Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.yaml b/Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.yaml
> new file mode 100644
> index 000000000000..9342e33d8b02
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.yaml
> @@ -0,0 +1,59 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/phy/intel,lgm-emmc-phy.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Intel Lightning Mountain(LGM) eMMC PHY Device Tree Bindings
> +
> +maintainers:
> +  - Ramuthevar Vadivel Murugan <vadivel.muruganx.ramuthevar@linux.intel.com>
> +
> +properties:
> +  "#phy-cells":
> +    const: 0
> +
> +  compatible:
> +    const: intel,lgm-emmc-phy
> +
> +  reg:
> +    maxItems: 1
> +
> +  syscon:

intel,syscon like the example. You must have used 5.2 as on 5.3-rc the
example will fail validation.

> +    items:

Drop items as there is only 1.

> +      $ref: "/schemas/types.yaml#definitions/phandle"
> +
> +  clocks:
> +    items:
> +      - description: e-MMC phy module clock
> +
> +  clock-names:
> +    items:
> +      - const: emmcclk
> +
> +  resets:
> +    maxItems: 1
> +
> +required:
> +  - "#phy-cells"
> +  - compatible
> +  - reg
> +  - clocks
> +  - clock-names
> +  - resets
> +  - ref

Not documented.

> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    emmc_phy: emmc_phy {
> +        compatible = "intel,lgm-emmc-phy";
> +        reg = <0xe0020000 0x100>;
> +        intel,syscon = <&sysconf>;
> +        clocks = <&emmc>;
> +        clock-names = "emmcclk";
> +        #phy-cells = <0>;
> +    };
> +
> +...
> --
> 2.11.0
>