Re: [PATCH 02/40] dt-bindings: mfd: ti,am3359-tscadc: Add a yaml description for this MFD

[Rob Herring <robh@kernel.org>]

On Wed, Aug 25, 2021 at 05:24:40PM +0200, Miquel Raynal wrote:
> There is a very light description of this MFD in a text file dedicated
> to a touchscreen controller (which is one of the two children of the
> MFD). Here is now a complete yaml description.
> 
> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
> ---
>  .../bindings/mfd/ti,am3359-tscadc.yaml        | 75 +++++++++++++++++++
>  1 file changed, 75 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mfd/ti,am3359-tscadc.yaml
> 
> diff --git a/Documentation/devicetree/bindings/mfd/ti,am3359-tscadc.yaml b/Documentation/devicetree/bindings/mfd/ti,am3359-tscadc.yaml
> new file mode 100644
> index 000000000000..96b329508d8a
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/ti,am3359-tscadc.yaml
> @@ -0,0 +1,75 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mfd/ti,am3359-tscadc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: TI AM3359 Touchscreen controller/ADC
> +
> +maintainers:
> +  - Miquel Raynal <miquel.raynal@bootlin.com>
> +
> +properties:
> +  compatible:
> +    const: ti,am3359-tscadc
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +  clock-names:
> +    const: fck
> +
> +  dmas:
> +    items:
> +      - description: DMA controller phandle and request line for FIFO0
> +      - description: DMA controller phandle and request line for FIFO1
> +
> +  dma-names:
> +    items:
> +      - const: fifo0
> +      - const: fifo1
> +
> +patternProperties:
> +  "^adc$":
> +    description: ADC
> +
> +  "^tsc$":
> +    description: Touchscreen controller

These are fixed strings, so move to 'properties'. They also need 'type: 
object' to indicate they are nodes.

> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - clocks
> +  - clock-names
> +  - dmas
> +  - dma-names
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +
> +    tscadc: tscadc@0 {
> +        compatible = "ti,am3359-tscadc";
> +        reg = <0x0 0x1000>;
> +        interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>;
> +        clocks = <&adc_tsc_fck>;
> +        clock-names = "fck";
> +        dmas = <&edma 53 0>, <&edma 57 0>;
> +        dma-names = "fifo0", "fifo1";
> +        status = "disabled";

Don't show 'status' in examples. It disables some checks.

> +
> +        tsc {
> +        };
> +
> +        adc {
> +        };
> +    };
> -- 
> 2.27.0
> 
>