Commit 98bad5bc authored by Sebastian Reichel's avatar Sebastian Reichel Committed by Greg Kroah-Hartman
Browse files

dt-bindings: usb: add rk3588 compatible to rockchip,dwc3 



RK3588 has three DWC3 controllers. Two of them are fully functional in
host, device and OTG mode including USB2 support. They are connected to
dedicated PHYs, that also support USB-C's DisplayPort alternate mode.

The third controller is connected to one of the combphy's shared
with PCIe and SATA. It can only be used in host mode and does not
support USB2. Compared to the other controllers this one needs
some extra clocks.

While adding the extra clocks required by RK3588, I noticed grf_clk
is not available on RK3568, so I disallowed it for that platform.

Signed-off-by: default avatarSebastian Reichel <sebastian.reichel@collabora.com>
Reviewed-by: default avatarConor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20231020150022.48725-2-sebastian.reichel@collabora.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent de7ecc4e

Documentation/devicetree/bindings/usb/rockchip,dwc3.yaml

+55 −5
Original line number Diff line number Diff line
@@ -20,9 +20,6 @@ description: 
  Type-C PHY

  Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt



allOf:

  - $ref: snps,dwc3.yaml#



select:

  properties:

    compatible:
@@ -30,6 +27,7 @@ select: 
        enum:

          - rockchip,rk3328-dwc3

          - rockchip,rk3568-dwc3

          - rockchip,rk3588-dwc3

  required:

    - compatible
@@ -39,6 +37,7 @@ properties: 
      - enum:

          - rockchip,rk3328-dwc3

          - rockchip,rk3568-dwc3

          - rockchip,rk3588-dwc3

      - const: snps,dwc3



  reg:
@@ -58,7 +57,9 @@ properties: 
          Master/Core clock, must to be >= 62.5 MHz for SS

          operation and >= 30MHz for HS operation

      - description:

          Controller grf clock

          Controller grf clock OR UTMI clock

      - description:

          PIPE clock



  clock-names:

    minItems: 3
@@ -66,7 +67,10 @@ properties: 
      - const: ref_clk

      - const: suspend_clk

      - const: bus_clk

      - const: grf_clk

      - enum:

          - grf_clk

          - utmi

      - const: pipe



  power-domains:

    maxItems: 1
@@ -86,6 +90,52 @@ required: 
  - clocks

  - clock-names



allOf:

  - $ref: snps,dwc3.yaml#

  - if:

      properties:

        compatible:

          contains:

            const: rockchip,rk3328-dwc3

    then:

      properties:

        clocks:

          minItems: 3

          maxItems: 4

        clock-names:

          minItems: 3

          items:

            - const: ref_clk

            - const: suspend_clk

            - const: bus_clk

            - const: grf_clk

  - if:

      properties:

        compatible:

          contains:

            const: rockchip,rk3568-dwc3

    then:

      properties:

        clocks:

          maxItems: 3

        clock-names:

          maxItems: 3

  - if:

      properties:

        compatible:

          contains:

            const: rockchip,rk3588-dwc3

    then:

      properties:

        clock-names:

          minItems: 3

          items:

            - const: ref_clk

            - const: suspend_clk

            - const: bus_clk

            - const: utmi

            - const: pipe



examples:

  - |

    #include <dt-bindings/clock/rk3328-cru.h>