Re: [PATCH v6 5/6] dt-bindings: mfd: Add Delta TN48M CPLD drivers bindings

[Robert Marko]

On Mon, Jun 7, 2021 at 2:33 PM Robert Marko <robert.marko@xxxxxxxxxx> wrote:
>
> Add binding documents for the Delta TN48M CPLD drivers.
>
> Signed-off-by: Robert Marko <robert.marko@xxxxxxxxxx>
> ---
> Changes in v3:
> * Include bindings for reset driver
>
> Changes in v2:
> * Implement MFD as a simple I2C MFD
> * Add GPIO bindings as separate
>
>  .../bindings/gpio/delta,tn48m-gpio.yaml       | 42 +++++++++
>  .../bindings/mfd/delta,tn48m-cpld.yaml        | 90 +++++++++++++++++++
>  .../bindings/reset/delta,tn48m-reset.yaml     | 35 ++++++++
>  3 files changed, 167 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/gpio/delta,tn48m-gpio.yaml
>  create mode 100644 Documentation/devicetree/bindings/mfd/delta,tn48m-cpld.yaml
>  create mode 100644 Documentation/devicetree/bindings/reset/delta,tn48m-reset.yaml
>
> diff --git a/Documentation/devicetree/bindings/gpio/delta,tn48m-gpio.yaml b/Documentation/devicetree/bindings/gpio/delta,tn48m-gpio.yaml
> new file mode 100644
> index 000000000000..aca646aecb12
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/gpio/delta,tn48m-gpio.yaml
> @@ -0,0 +1,42 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/gpio/delta,tn48m-gpio.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Delta Networks TN48M CPLD GPIO controller
> +
> +maintainers:
> +  - Robert Marko <robert.marko@xxxxxxxxxx>
> +
> +description: |
> +  This module is part of the Delta TN48M multi-function device. For more
> +  details see ../mfd/delta,tn48m-cpld.yaml.
> +
> +  GPIO controller module provides GPIO-s for the SFP slots.
> +  It is split into 3 controllers, one output only for the SFP TX disable
> +  pins, one input only for the SFP present pins and one input only for
> +  the SFP LOS pins.
> +
> +properties:
> +  compatible:
> +    enum:
> +      - delta,tn48m-gpio-sfp-tx-disable
> +      - delta,tn48m-gpio-sfp-present
> +      - delta,tn48m-gpio-sfp-los
> +
> +  reg:
> +    maxItems: 1
> +
> +  "#gpio-cells":
> +    const: 2
> +
> +  gpio-controller: true
> +
> +required:
> +  - compatible
> +  - reg
> +  - "#gpio-cells"
> +  - gpio-controller
> +
> +additionalProperties: false
> diff --git a/Documentation/devicetree/bindings/mfd/delta,tn48m-cpld.yaml b/Documentation/devicetree/bindings/mfd/delta,tn48m-cpld.yaml
> new file mode 100644
> index 000000000000..2c6e2adf73ca
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/delta,tn48m-cpld.yaml
> @@ -0,0 +1,90 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mfd/delta,tn48m-cpld.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Delta Networks TN48M CPLD controller
> +
> +maintainers:
> +  - Robert Marko <robert.marko@xxxxxxxxxx>
> +
> +description: |
> +  Lattice CPLD onboard the TN48M switches is used for system
> +  management.
> +
> +  It provides information about the hardware model, revision,
> +  PSU status etc.
> +
> +  It is also being used as a GPIO expander for the SFP slots and
> +  reset controller for the switch MAC-s and other peripherals.
> +
> +properties:
> +  compatible:
> +    const: delta,tn48m-cpld
> +
> +  reg:
> +    description:
> +      I2C device address.
> +    maxItems: 1
> +
> +  "#address-cells":
> +    const: 1
> +
> +  "#size-cells":
> +    const: 0
> +
> +required:
> +  - compatible
> +  - reg
> +  - "#address-cells"
> +  - "#size-cells"
> +
> +patternProperties:
> +  "^gpio(@[0-9a-f]+)?$":
> +    $ref: ../gpio/delta,tn48m-gpio.yaml
> +
> +  "^reset-controller?$":
> +    $ref: ../reset/delta,tn48m-reset.yaml
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    i2c {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        cpld@41 {
> +            compatible = "delta,tn48m-cpld";
> +            reg = <0x41>;
> +            #address-cells = <1>;
> +            #size-cells = <0>;
> +
> +            gpio@31 {
> +                compatible = "delta,tn48m-gpio-sfp-tx-disable";
> +                reg = <0x31>;
> +                gpio-controller;
> +                #gpio-cells = <2>;
> +            };
> +
> +            gpio@3a {
> +                compatible = "delta,tn48m-gpio-sfp-present";
> +                reg = <0x3a>;
> +                gpio-controller;
> +                #gpio-cells = <2>;
> +            };
> +
> +            gpio@40 {
> +                compatible = "delta,tn48m-gpio-sfp-los";
> +                reg = <0x40>;
> +                gpio-controller;
> +                #gpio-cells = <2>;
> +            };
> +
> +            reset-controller {
> +              compatible = "delta,tn48m-reset";
> +              #reset-cells = <1>;
> +            };
> +        };
> +    };
> diff --git a/Documentation/devicetree/bindings/reset/delta,tn48m-reset.yaml b/Documentation/devicetree/bindings/reset/delta,tn48m-reset.yaml
> new file mode 100644
> index 000000000000..0e5ee8decc0d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/reset/delta,tn48m-reset.yaml
> @@ -0,0 +1,35 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/reset/delta,tn48m-reset.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Delta Networks TN48M CPLD reset controller
> +
> +maintainers:
> +  - Robert Marko <robert.marko@xxxxxxxxxx>
> +
> +description: |
> +  This module is part of the Delta TN48M multi-function device. For more
> +  details see ../mfd/delta,tn48m-cpld.yaml.
> +
> +  Reset controller modules provides resets for the following:
> +  * 88F7040 SoC
> +  * 88F6820 SoC
> +  * 98DX3265 switch MAC-s
> +  * 88E1680 PHY-s
> +  * 88E1512 PHY
> +  * PoE PSE controller
> +
> +properties:
> +  compatible:
> +    const: delta,tn48m-reset
> +
> +  "#reset-cells":
> +    const: 1
> +
> +required:
> +  - compatible
> +  - "#reset-cells"
> +
> +additionalProperties: false
> --
> 2.31.1
>

Are there any issues with the bindings?
The patch series is depending on this as the rest has been reviewed.

Regards,
Robert
-- 
Robert Marko
Staff Embedded Linux Engineer
Sartura Ltd.
Lendavska ulica 16a
10000 Zagreb, Croatia
Email: robert.marko@xxxxxxxxxx
Web: www.sartura.hr