Commit d600d31e authored by Alexander Stein's avatar Alexander Stein Committed by Greg Kroah-Hartman
Browse files

dt-bindings: usb: dwc3-imx8mp: Add imx8mp specific flags 



This adds bindings for features in the USB glue block. They allow
setting polarity of PWR and OC as well as disabling port power control.
Also permanently attached can be annotated as well.
Additional IO address and clock are needed.

Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarAlexander Stein <alexander.stein@ew.tq-group.com>
Link: https://lore.kernel.org/r/20220218152707.2198357-3-alexander.stein@ew.tq-group.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 81915384

Documentation/devicetree/bindings/usb/fsl,imx8mp-dwc3.yaml

+27 −4
Original line number Diff line number Diff line
@@ -15,9 +15,9 @@ properties: 
    const: fsl,imx8mp-dwc3



  reg:

    maxItems: 1

    description: Address and length of the register set for the wrapper of

      dwc3 core on the SOC.

    items:

      - description: Address and length of the register set for HSIO Block Control

      - description: Address and length of the register set for the wrapper of dwc3 core on the SOC.



  "#address-cells":

    enum: [ 1, 2 ]
@@ -49,6 +49,28 @@ properties: 
      - const: hsio

      - const: suspend



  fsl,permanently-attached:

    type: boolean

    description:

      Indicates if the device atached to a downstream port is

      permanently attached.



  fsl,disable-port-power-control:

    type: boolean

    description:

      Indicates whether the host controller implementation includes port

      power control. Defines Bit 3 in capability register (HCCPARAMS).



  fsl,over-current-active-low:

    type: boolean

    description:

      Over current signal polarity is active low.



  fsl,power-active-low:

    type: boolean

    description:

      Power pad (PWR) polarity is active low.



# Required child node:



patternProperties:
@@ -74,7 +96,8 @@ examples: 
    #include <dt-bindings/interrupt-controller/arm-gic.h>

    usb3_0: usb@32f10100 {

      compatible = "fsl,imx8mp-dwc3";

      reg = <0x32f10100 0x8>;

      reg = <0x32f10100 0x8>,

            <0x381f0000 0x20>;

      clocks = <&clk IMX8MP_CLK_HSIO_ROOT>,

               <&clk IMX8MP_CLK_USB_ROOT>;

      clock-names = "hsio", "suspend";