Re: [PATCH v4 2/2] usb typec: mt6360: Add MT6360 Type-C DT binding documentation

From: Rob Herring
Date: Fri Aug 28 2020 - 18:05:26 EST


On Fri, Aug 28, 2020 at 06:30:36PM +0800, cy_huang wrote:
> From: ChiYuan Huang <cy_huang@xxxxxxxxxxx>
>
> Add a devicetree binding documentation for the MT6360 Type-C driver.
>
> usb typec: mt6360: Rename DT binding doument from mt6360 to mt636x
>
> Signed-off-by: ChiYuan Huang <cy_huang@xxxxxxxxxxx>
> ---
> .../bindings/usb/mediatek,mt6360-tcpc.yaml | 73 ++++++++++++++++++++++
> 1 file changed, 73 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/usb/mediatek,mt6360-tcpc.yaml
>
> diff --git a/Documentation/devicetree/bindings/usb/mediatek,mt6360-tcpc.yaml b/Documentation/devicetree/bindings/usb/mediatek,mt6360-tcpc.yaml
> new file mode 100644
> index 00000000..9e8ab0d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/usb/mediatek,mt6360-tcpc.yaml
> @@ -0,0 +1,73 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/usb/mediatek,mt6360-tcpc.yaml#";
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#";
> +
> +title: Mediatek MT6360 Type-C Port Switch and Power Delivery controller DT bindings
> +
> +maintainers:
> + - ChiYuan Huang <cy_huang@xxxxxxxxxxx>
> +
> +description: |
> + Mediatek MT6360 is a multi-functional device. It integrates charger, ADC, flash, RGB indicators,
> + regulators (BUCKs/LDOs), and TypeC Port Switch with Power Delivery controller.
> + This document only describes MT6360 Type-C Port Switch and Power Delivery controller.
> +
> +properties:
> + compatible:
> + enum:
> + - mediatek,mt6360-tcpc
> +
> + interrupts-extended:

Use 'interrupts'. The tooling will automatically support
'interrupts-extended'.

> + maxItems: 1
> +
> + interrupt-names:
> + items:
> + - const: PD_IRQB
> +
> +patternProperties:
> + "connector":
> + type: object
> + $ref: ../connector/usb-connector.yaml#
> + description:
> + Properties for usb c connector.
> +
> +additionalProperties: false
> +
> +required:
> + - compatible
> + - interrupts-extended
> + - interrupt-names
> +
> +examples:
> + - |
> + #include <dt-bindings/interrupt-controller/irq.h>
> + #include <dt-bindings/usb/pd.h>
> + i2c0 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + mt6360@34 {
> + compatible = "mediatek,mt6360";
> + reg = <0x34>;
> +
> + tcpc {
> + compatible = "mediatek,mt6360-tcpc";
> + interrupts-extended = <&gpio26 3 IRQ_TYPE_LEVEL_LOW>;
> + interrupt-names = "PD_IRQB";
> +
> + connector {

Where's the data connections? The assumption of the binding is the USB
(2 and 3) connections come from the parent if there's no graph to the
USB controller(s).

> + compatible = "usb-c-connector";
> + label = "USB-C";
> + data-role = "dual";
> + power-role = "dual";
> + try-power-role = "sink";
> + source-pdos = <PDO_FIXED(5000, 1000, PDO_FIXED_DUAL_ROLE | PDO_FIXED_DATA_SWAP)>;
> + sink-pdos = <PDO_FIXED(5000, 2000, PDO_FIXED_DUAL_ROLE | PDO_FIXED_DATA_SWAP)>;
> + op-sink-microwatt = <10000000>;
> + };
> + };
> + };
> + };
> +...
> --
> 2.7.4
>