[PATCH 1/4] dt-bindings: usb: Document ST UCPD

[Fabrice Gasnier]

On 8/19/26 18:33, Marek Vasut wrote:
> Document ST UCPD Type-C block. The UCPD integrates the physical
> layer of the Power Delivery (PD), with CC signaling method, for
> operation with Type-C cables. Vbus and Vconn control is performed
> using an external chip, usually ST TCPP01/TCPP02/TCPP03 or similar.

Hi Marek, All,

I've sent a series for the complete case. Please check and review here:
https://lore.kernel.org/linux-usb/20260821-ucpd-host-fusb340-v7-2-rfc-v1-0-c5e27cbc0795@foss.st.com/

Thanks,
BR,
Fabrice

> 
> Signed-off-by: Marek Vasut <marex at nabladev.com>
> ---
> Cc: Alexandre Torgue <alexandre.torgue at foss.st.com>
> Cc: Conor Dooley <conor+dt at kernel.org>
> Cc: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
> Cc: Heikki Krogerus <heikki.krogerus at linux.intel.com>
> Cc: Krzysztof Kozlowski <krzk+dt at kernel.org>
> Cc: Maxime Coquelin <mcoquelin.stm32 at gmail.com>
> Cc: Rob Herring <robh at kernel.org>
> Cc: Sebastian Reichel <sebastian.reichel at collabora.com>
> Cc: devicetree at vger.kernel.org
> Cc: kernel at dh-electronics.com
> Cc: linux-arm-kernel at lists.infradead.org
> Cc: linux-kernel at vger.kernel.org
> Cc: linux-stm32 at st-md-mailman.stormreply.com
> Cc: linux-usb at vger.kernel.org
> ---
>  .../bindings/usb/st,stm32mp25-ucpd.yaml       | 154 ++++++++++++++++++
>  1 file changed, 154 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/usb/st,stm32mp25-ucpd.yaml
> 
> diff --git a/Documentation/devicetree/bindings/usb/st,stm32mp25-ucpd.yaml b/Documentation/devicetree/bindings/usb/st,stm32mp25-ucpd.yaml
> new file mode 100644
> index 0000000000000..9b13efdc90597
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/usb/st,stm32mp25-ucpd.yaml
> @@ -0,0 +1,154 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/usb/st,stm32mp25-ucpd.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: STMicroelectronics STM32MP25 UCPD Type-C controller
> +
> +maintainers:
> +  - Marek Vasut <marex at nabladev.com>
> +
> +description:
> +  The UCPD integrates the physical layer of the Power Delivery (PD),
> +  with CC signaling method, for operation with Type-C cables. Vbus
> +  and Vconn control is performed using an external chip, usually
> +  ST TCPP01/TCPP02/TCPP03 or similar.
> +
> +properties:
> +  compatible:
> +    const: st,stm32mp25-ucpd
> +
> +  reg:
> +    maxItems: 1
> +
> +  access-controllers:
> +    maxItems: 1
> +
> +  clocks:
> +    minItems: 2
> +    maxItems: 2
> +
> +  clock-names:
> +    items:
> +      - const: apb
> +      - const: ker
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  nvmem-cells:
> +    maxItems: 1
> +
> +  nvmem-cell-names:
> +    const: trim
> +
> +  power-domains:
> +    maxItems: 1
> +
> +  resets:
> +    maxItems: 1
> +
> +  reset-names:
> +    const: phy
> +
> +  vconn-gpios:
> +    description: GPIOs used to control CC1 and CC2 Vconn
> +
> +  vdd33-supply:
> +    description: Regulator that supplies the CC lines driver
> +
> +  connector:
> +    type: object
> +    $ref: /schemas/connector/usb-connector.yaml#
> +    unevaluatedProperties: false
> +
> +    properties:
> +      compatible:
> +        const: usb-c-connector
> +
> +      power-role: true
> +
> +      typec-power-opmode: true
> +
> +    required:
> +      - compatible
> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - clock-names
> +  - interrupts
> +  - nvmem-cells
> +  - nvmem-cell-names
> +  - power-domains
> +  - resets
> +  - reset-names
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/st,stm32mp25-rcc.h>
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/reset/st,stm32mp25-rcc.h>
> +
> +    ucpd: phy at 480a0000 {
> +        compatible = "st,stm32mp25-ucpd";
> +        reg = <0x480a0000 0x1000>;
> +        access-controllers = <&rifsc 69>;
> +        clocks = <&rcc CK_BUS_USBTC>, <&rcc CK_KER_USBTC>;
> +        clock-names = "apb", "ker";
> +        interrupts = <46 IRQ_TYPE_LEVEL_HIGH>;
> +        nvmem-cells = <&ucpdtrim>;
> +        nvmem-cell-names = "trim";
> +        power-domains = <&cluster_pd>;
> +        resets = <&rcc USBTC_R>;
> +        reset-names = "phy";
> +
> +        vconn-gpios = <&tcpp 0 0>, <&tcpp 1 0>;
> +        vdd33-supply = <&scmi_vdd33ucpd>;
> +
> +        connector {
> +            compatible = "usb-c-connector";
> +            label = "USB-C";
> +            data-role = "dual";
> +            power-role = "source";
> +            self-powered;
> +            vbus-gpios = <&gpioa 10 0>;
> +            vbus-supply = <&reg_usbc_vbus>;
> +
> +            altmodes {
> +                displayport {
> +                    svid = /bits/ 16 <0xff01>;
> +                    vdo = <0xffffffff>;
> +                };
> +            };
> +
> +            ports {
> +                #address-cells = <1>;
> +                #size-cells = <0>;
> +
> +                port at 0 {
> +                    reg = <0>;
> +                    usbc0_hs_ep: endpoint {
> +                        remote-endpoint = <&usb_drd0_hs_ep>;
> +                    };
> +                };
> +                port at 1 {
> +                    reg = <1>;
> +                    usbc0_ss_ep: endpoint {
> +                        remote-endpoint = <&usb_drd0_ss_ep>;
> +                    };
> +                };
> +
> +                port at 2 {
> +                    reg = <2>;
> +                    usbc0_sbu_ep: endpoint {
> +                        remote-endpoint = <&usb_sbu_ep>;
> +                    };
> +                };
> +            };
> +        };
> +    };