Re: [V6 PATCH 1/2] dt-bindings: Added device tree binding for max98390

From: Rob Herring
Date: Thu May 28 2020 - 10:17:56 EST


On Thu, May 28, 2020 at 07:37:55PM +0900, Steve Lee wrote:
> Add DT binding of max98390 amplifier driver.
>
> Signed-off-by: Steve Lee <steves.lee@xxxxxxxxxxxxxxxxxxx>
> ---
> Changed since V5:
> * Change txt to yaml and fix up the examples.
> Changed since V4:
> * No changes.
> Changed since V3:
> * No changes.
> Changed since V2:
> * No changes.
> Changed since V1:
> * Modified sample text in example
>
> .../bindings/sound/maxim,max98390.yaml | 39 +++++++++++++++++++
> 1 file changed, 39 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/sound/maxim,max98390.yaml
>
> diff --git a/Documentation/devicetree/bindings/sound/maxim,max98390.yaml b/Documentation/devicetree/bindings/sound/maxim,max98390.yaml
> new file mode 100644
> index 000000000000..1ed4ab9e1c37
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/sound/maxim,max98390.yaml
> @@ -0,0 +1,39 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/sound/maxim,max98390.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Maxim Integrated MAX98390 Speaker Amplifier with Integrated Dynamic Speaker Management
> +
> +maintainers:
> + - Steve Lee <steves.lee@xxxxxxxxxxxxxxxxxxx>
> +
> +properties:
> + compatible:
> + const: maxim,max98390
> +
> + reg:
> + maxItems: 1
> + description: I2C address of the device.
> +
> + temperature_calib:

s/_/-/

And missing 'maxim' prefix.

> + $ref: /schemas/types.yaml#/definitions/uint32
> + description: The calculated temperature data was measured while doing the calibration. Data : Temp / 100 * 2^12

Any constraints? 0-2^32 are valid values?

> +
> + r0_calib:

Same here.

> + $ref: /schemas/types.yaml#/definitions/uint32
> + description: This is r0 calibration data which was measured in factory mode.
> +
> +required:
> + - compatible
> + - reg

Add:

additionalProperties: false

> +
> +examples:
> + - |
> + max98390: amplifier@38 {
> + compatible = "maxim,max98390";
> + reg = <0x38>;
> + maxim,temperature_calib = <1024>;
> + maxim,r0_calib = <100232>;
> + };
> --
> 2.17.1
>