Commit d9649a7e authored by Parth Pancholi's avatar Parth Pancholi Committed by Greg Kroah-Hartman
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dt-bindings: usb: add TUSB73x0 PCIe 

Add device tree bindings for TI's TUSB73x0 PCIe-to-USB 3.0 xHCI
host controller. The controller supports software configuration
through PCIe registers, such as controlling the PWRONx polarity
via the USB control register (E0h).

Datasheet: https://www.ti.com/lit/ds/symlink/tusb7320.pdf


Signed-off-by: default avatarParth Pancholi <parth.pancholi@toradex.com>
Signed-off-by: default avatarFrancesco Dolcini <francesco.dolcini@toradex.com>
Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20241029072444.8827-2-francesco@dolcini.it


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent f80995b2

Documentation/devicetree/bindings/usb/ti,tusb73x0-pci.yaml

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/usb/ti,tusb73x0-pci.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: TUSB73x0 USB 3.0 xHCI Host Controller (PCIe)



maintainers:

  - Francesco Dolcini <francesco.dolcini@toradex.com>



description:

  TUSB73x0 USB 3.0 xHCI Host Controller via PCIe x1 Gen2 interface.

  The TUSB7320 supports up to two downstream ports, the TUSB7340 supports up

  to four downstream ports, both variants share the same PCI device ID.



properties:

  compatible:

    const: pci104c,8241



  reg:

    maxItems: 1



  ti,pwron-active-high:

    $ref: /schemas/types.yaml#/definitions/flag

    description:

      Configure the polarity of the PWRONx# signals. When this is present, the

      PWRONx# pins are active high and their internal pull-down resistors are

      disabled. When this is absent, the PWRONx# pins are active low (default)

      and their internal pull-down resistors are enabled.



required:

  - compatible

  - reg



allOf:

  - $ref: usb-xhci.yaml



additionalProperties: false



examples:

  - |

    pcie@0 {

        reg = <0x0 0x1000>;

        ranges = <0x02000000 0x0 0x100000 0x10000000 0x0 0x0>;

        #address-cells = <3>;

        #size-cells = <2>;

        device_type = "pci";



        usb@0 {

              compatible = "pci104c,8241";

              reg = <0x0 0x0 0x0 0x0 0x0>;

              ti,pwron-active-high;

        };

    };