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Message-ID: <20200914201925.GA167594@bogus>
Date: Mon, 14 Sep 2020 14:19:25 -0600
From: Rob Herring <robh@...nel.org>
To: Roger Quadros <rogerq@...com>
Cc: balbi@...nel.org, pawell@...ence.com, kurahul@...ence.com,
nsekhar@...com, vigneshr@...com, linux-usb@...r.kernel.org,
linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH v2 1/3] dt-bindings: usb: Convert cdns-usb3.txt to YAML
schema
On Wed, Sep 02, 2020 at 04:35:41PM +0300, Roger Quadros wrote:
> Converts cdns-usb3.txt to YAML schema cdns,usb3.yaml
>
> Signed-off-by: Roger Quadros <rogerq@...com>
> ---
> .../devicetree/bindings/usb/cdns,usb3.yaml | 89 +++++++++++++++++++
> .../devicetree/bindings/usb/cdns-usb3.txt | 45 ----------
> 2 files changed, 89 insertions(+), 45 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/usb/cdns,usb3.yaml
> delete mode 100644 Documentation/devicetree/bindings/usb/cdns-usb3.txt
>
> diff --git a/Documentation/devicetree/bindings/usb/cdns,usb3.yaml b/Documentation/devicetree/bindings/usb/cdns,usb3.yaml
> new file mode 100644
> index 000000000000..7bc0263accee
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/usb/cdns,usb3.yaml
> @@ -0,0 +1,89 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/usb/cdns,usb3.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Cadence USBSS-DRD controller bindings
> +
> +maintainers:
> + - Pawel Laszczak <pawell@...ence.com>
> +
> +properties:
> + compatible:
> + oneOf:
> + - const: cdns,usb3
Don't need 'oneOf' with only 1 entry.
> +
> + reg:
> + items:
> + - description: OTG controller registers
> + - description: XHCI Host controller registers
> + - description: DEVICE controller registers
> +
> + reg-names:
> + items:
> + - const: otg
> + - const: xhci
> + - const: dev
> +
> + interrupts:
> + items:
> + - description: OTG/DRD controller interrupt
> + - description: XHCI host controller interrupt
> + - description: Device controller interrupt
> +
> + interrupt-names:
> + items:
> + - const: host
> + - const: peripheral
> + - const: otg
> +
> + dr_mode:
> + enum: [host, otg, peripheral]
> +
> + maximum-speed:
> + enum: [super-speed, high-speed, full-speed]
> +
> + phys:
> + minItems: 1
> + maxItems: 2
> +
> + phy-names:
> + minItems: 1
> + maxItems: 2
Need to define the names and what each entry is.
> +
> + cdns,on-chip-buff-size:
> + description:
> + size of memory intended as internal memory for endpoints
> + buffers expressed in KB
> + $ref: /schemas/types.yaml#/definitions/uint32
> +
> +required:
> + - compatible
> + - reg
> + - reg-names
> + - interrupts
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/interrupt-controller/arm-gic.h>
> + bus {
> + #address-cells = <2>;
> + #size-cells = <2>;
> +
> + usb@...0000 {
> + compatible = "cdns,usb3";
> + reg = <0x00 0x6000000 0x00 0x10000>,
> + <0x00 0x6010000 0x00 0x10000>,
> + <0x00 0x6020000 0x00 0x10000>;
> + reg-names = "otg", "xhci", "dev";
> + interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>;
> + interrupt-names = "host", "peripheral", "otg";
> + maximum-speed = "super-speed";
> + dr_mode = "otg";
> + };
> + };
> diff --git a/Documentation/devicetree/bindings/usb/cdns-usb3.txt b/Documentation/devicetree/bindings/usb/cdns-usb3.txt
> deleted file mode 100644
> index b7dc606d37b5..000000000000
> --- a/Documentation/devicetree/bindings/usb/cdns-usb3.txt
> +++ /dev/null
> @@ -1,45 +0,0 @@
> -Binding for the Cadence USBSS-DRD controller
> -
> -Required properties:
> - - reg: Physical base address and size of the controller's register areas.
> - Controller has 3 different regions:
> - - HOST registers area
> - - DEVICE registers area
> - - OTG/DRD registers area
> - - reg-names - register memory area names:
> - "xhci" - for HOST registers space
> - "dev" - for DEVICE registers space
> - "otg" - for OTG/DRD registers space
> - - compatible: Should contain: "cdns,usb3"
> - - interrupts: Interrupts used by cdns3 controller:
> - "host" - interrupt used by XHCI driver.
> - "peripheral" - interrupt used by device driver
> - "otg" - interrupt used by DRD/OTG part of driver
> -
> -Optional properties:
> - - maximum-speed : valid arguments are "super-speed", "high-speed" and
> - "full-speed"; refer to usb/generic.txt
> - - dr_mode: Should be one of "host", "peripheral" or "otg".
> - - phys: reference to the USB PHY
> - - phy-names: from the *Generic PHY* bindings;
> - Supported names are:
> - - cdns3,usb2-phy
> - - cdns3,usb3-phy
> -
> - - cdns,on-chip-buff-size : size of memory intended as internal memory for endpoints
> - buffers expressed in KB
> -
> -Example:
> - usb@...00000 {
> - compatible = "cdns,usb3";
> - interrupts = <GIC_USB_IRQ 7 IRQ_TYPE_LEVEL_HIGH>,
> - <GIC_USB_IRQ 7 IRQ_TYPE_LEVEL_HIGH>,
> - <GIC_USB_IRQ 8 IRQ_TYPE_LEVEL_HIGH>;
> - interrupt-names = "host", "peripheral", "otg";
> - reg = <0xf3000000 0x10000>, /* memory area for HOST registers */
> - <0xf3010000 0x10000>, /* memory area for DEVICE registers */
> - <0xf3020000 0x10000>; /* memory area for OTG/DRD registers */
> - reg-names = "xhci", "dev", "otg";
> - phys = <&usb2_phy>, <&usb3_phy>;
> - phy-names = "cdns3,usb2-phy", "cnds3,usb3-phy";
> - };
> --
> Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
> Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
>
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