Re: [PATCHv1 1/2] dt-bindings: max3421-udc: add dt bindings for MAX3420 UDC

From: Rob Herring
Date: Thu Dec 19 2019 - 14:40:08 EST


On Mon, Dec 09, 2019 at 06:31:24PM -0600, jassisinghbrar@xxxxxxxxx wrote:
> From: Jassi Brar <jaswinder.singh@xxxxxxxxxx>
>
> Add YAML dt bindings for Maxim MAX3420 UDC controller.
>
> Signed-off-by: Jassi Brar <jaswinder.singh@xxxxxxxxxx>
> ---
> .../bindings/usb/maxim,max3420-udc.yaml | 60 +++++++++++++++++++
> 1 file changed, 60 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/usb/maxim,max3420-udc.yaml
>
> diff --git a/Documentation/devicetree/bindings/usb/maxim,max3420-udc.yaml b/Documentation/devicetree/bindings/usb/maxim,max3420-udc.yaml
> new file mode 100644
> index 000000000000..cf4eec8a618e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/usb/maxim,max3420-udc.yaml
> @@ -0,0 +1,60 @@
> +# SPDX-License-Identifier: GPL-2.0-only

Dual license new bindings please:

(GPL-2.0-only OR BSD-2-Clause)

> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/usb/maxim,max3420-udc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: MAXIM MAX3420/1 USB Peripheral Controller
> +
> +maintainers:
> + - Jassi Brar <jaswinder.singh@xxxxxxxxxx>
> +
> +description: |
> + The controller provices USB2.0 compliant FullSpeed peripheral
> + implementation over the SPI interface.

space ^

> +
> + Specifications about the part can be found at:
> + http://datasheets.maximintegrated.com/en/ds/MAX3420E.pdf
> +
> +properties:
> + compatible:
> + enum:
> + - maxim,max3420-udc
> + - maxim,max3421-udc
> +
> + reg:
> + maxItems: 1
> +
> + interrupts:
> + minItems: 1
> + maxItems: 2
> + items:
> + - const: udc
> + - const: vbus

interrupts are integers, not strings. Should be interrupt-names?

> +
> + spi-max-frequency:
> + maximum: 26000000
> +
> +required:
> + - compatible
> + - reg
> + - interrupts
> + - interrupt-names

Add:

additionalProperties: false

> +
> +examples:
> + - |
> + #include <dt-bindings/gpio/gpio.h>
> + #include <dt-bindings/interrupt-controller/irq.h>
> + spi0 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + udc@0 {
> + compatible = "maxim,max3420-udc";
> + reg = <0>;
> + interrupt-parent = <&gpio>;
> + interrupts = <0 IRQ_TYPE_EDGE_FALLING>, <10 IRQ_TYPE_EDGE_BOTH>;
> + interrupt-names = "udc", "vbus";
> + spi-max-frequency = <12500000>;
> + };
> + };
> --
> 2.20.1
>