[v2,30/52] dt-bindings: mmc: Convert MMC Card binding to a schema

MMC Cards can have an optional Device Tree binding to add
non-discoverable properties.

Now that we have the DT validation in place, let's convert the device
tree bindings for that driver over to a YAML schema.

Some of these properties were already described in the MMC controller
binding, even though they are not generic and do not apply to any
device, so we took the occasion to fix this.

Cc: linux-mmc@vger.kernel.org
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>

---

Changes from v1:
  - Fixed additionalProperties
---
 .../devicetree/bindings/mmc/mmc-card.txt      | 30 ------------
 .../devicetree/bindings/mmc/mmc-card.yaml     | 48 +++++++++++++++++++
 .../bindings/mmc/mmc-controller.yaml          |  6 ---
 3 files changed, 48 insertions(+), 36 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/mmc/mmc-card.txt
 create mode 100644 Documentation/devicetree/bindings/mmc/mmc-card.yaml

On Wed, 1 Sept 2021 at 11:19, Maxime Ripard <maxime@cerno.tech> wrote:
>
> MMC Cards can have an optional Device Tree binding to add
> non-discoverable properties.
>
> Now that we have the DT validation in place, let's convert the device
> tree bindings for that driver over to a YAML schema.
>
> Some of these properties were already described in the MMC controller
> binding, even though they are not generic and do not apply to any
> device, so we took the occasion to fix this.
>
> Cc: linux-mmc@vger.kernel.org
> Cc: Ulf Hansson <ulf.hansson@linaro.org>
> Signed-off-by: Maxime Ripard <maxime@cerno.tech>
>

Queued for v5.16 on the temporary devel branch, thanks!

Kind regards
Uffe


> ---
>
> Changes from v1:
>   - Fixed additionalProperties
> ---
>  .../devicetree/bindings/mmc/mmc-card.txt      | 30 ------------
>  .../devicetree/bindings/mmc/mmc-card.yaml     | 48 +++++++++++++++++++
>  .../bindings/mmc/mmc-controller.yaml          |  6 ---
>  3 files changed, 48 insertions(+), 36 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/mmc/mmc-card.txt
>  create mode 100644 Documentation/devicetree/bindings/mmc/mmc-card.yaml
>
> diff --git a/Documentation/devicetree/bindings/mmc/mmc-card.txt b/Documentation/devicetree/bindings/mmc/mmc-card.txt
> deleted file mode 100644
> index 8d2d71758907..000000000000
> --- a/Documentation/devicetree/bindings/mmc/mmc-card.txt
> +++ /dev/null
> @@ -1,30 +0,0 @@
> -mmc-card / eMMC bindings
> -------------------------
> -
> -This documents describes the devicetree bindings for a mmc-host controller
> -child node describing a mmc-card / an eMMC, see "Use of Function subnodes"
> -in mmc.txt
> -
> -Required properties:
> --compatible : Must be "mmc-card"
> --reg        : Must be <0>
> -
> -Optional properties:
> --broken-hpi : Use this to indicate that the mmc-card has a broken hpi
> -              implementation, and that hpi should not be used
> -
> -Example:
> -
> -&mmc2 {
> -       pinctrl-names = "default";
> -       pinctrl-0 = <&mmc2_pins_a>;
> -       vmmc-supply = <&reg_vcc3v3>;
> -       bus-width = <8>;
> -       non-removable;
> -
> -       mmccard: mmccard@0 {
> -               reg = <0>;
> -               compatible = "mmc-card";
> -               broken-hpi;
> -       };
> -};
> diff --git a/Documentation/devicetree/bindings/mmc/mmc-card.yaml b/Documentation/devicetree/bindings/mmc/mmc-card.yaml
> new file mode 100644
> index 000000000000..b17d454442b3
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mmc/mmc-card.yaml
> @@ -0,0 +1,48 @@
> +# SPDX-License-Identifier: GPL-2.0
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mmc/mmc-card.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: MMC Card / eMMC Generic Device Tree Bindings
> +
> +maintainers:
> +  - Ulf Hansson <ulf.hansson@linaro.org>
> +
> +description: |
> +  This documents describes the devicetree bindings for a mmc-host controller
> +  child node describing a mmc-card / an eMMC.
> +
> +properties:
> +  compatible:
> +    const: mmc-card
> +
> +  reg:
> +    const: 0
> +
> +  broken-hpi:
> +    $ref: /schemas/types.yaml#/definitions/flag
> +    description:
> +      Use this to indicate that the mmc-card has a broken hpi
> +      implementation, and that hpi should not be used.
> +
> +required:
> +  - compatible
> +  - reg
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    mmc {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        card@0 {
> +            compatible = "mmc-card";
> +            reg = <0>;
> +            broken-hpi;
> +        };
> +    };
> +
> +...
> diff --git a/Documentation/devicetree/bindings/mmc/mmc-controller.yaml b/Documentation/devicetree/bindings/mmc/mmc-controller.yaml
> index 25ac8e200970..513f3c8758aa 100644
> --- a/Documentation/devicetree/bindings/mmc/mmc-controller.yaml
> +++ b/Documentation/devicetree/bindings/mmc/mmc-controller.yaml
> @@ -333,12 +333,6 @@ patternProperties:
>                subnode describes. A value of 0 denotes the memory SD
>                function, values from 1 to 7 denote the SDIO functions.
>
> -      broken-hpi:
> -        $ref: /schemas/types.yaml#/definitions/flag
> -        description:
> -          Use this to indicate that the mmc-card has a broken hpi
> -          implementation, and that hpi should not be used.
> -
>      required:
>        - reg
>
> --
> 2.31.1
>