linux-kernel - Re: [PATCH 1/2] dt-bindings: phy: add NXP PTN3222 eUSB2 to USB2 redriver

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Message-ID: <20240829-dandy-jingle-1002fb99b900@spud>
Date: Thu, 29 Aug 2024 17:18:17 +0100
From: Conor Dooley <conor@...nel.org>
To: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Cc: Vinod Koul <vkoul@...nel.org>,
	Kishon Vijay Abraham I <kishon@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Konrad Dybcio <konradybcio@...nel.org>,
	linux-phy@...ts.infradead.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: phy: add NXP PTN3222 eUSB2 to USB2
 redriver

On Thu, Aug 29, 2024 at 11:21:13AM +0300, Dmitry Baryshkov wrote:
> The NXP PTN3222 is the single-port eUSB2 to USB2 redriver that performs
> translation between eUSB2 and USB2 signalling schemes. It supports all
> three data rates: Low Speed, Full Speed and High Speed.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> ---
>  .../devicetree/bindings/phy/nxp,ptn3222.yaml       | 55 ++++++++++++++++++++++
>  1 file changed, 55 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/phy/nxp,ptn3222.yaml b/Documentation/devicetree/bindings/phy/nxp,ptn3222.yaml
> new file mode 100644
> index 000000000000..acec5bb2391d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/phy/nxp,ptn3222.yaml
> @@ -0,0 +1,55 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/phy/nxp,ptn3222.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: NXP PTN3222 1-port eUSB2 to USB2 redriver
> +
> +maintainers:
> +  - Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> +
> +properties:
> +  compatible:
> +    enum:
> +      - nxp,ptn3222
> +
> +  reg:
> +    maxItems: 1
> +
> +  "#phy-cells":
> +    const: 0
> +
> +  vdd1v8-supply:
> +    description: power supply (1.8V)

As a nit, these descriptions could just be ": true" like the
reset-gpios, they're equally obvious.

Reviewed-by: Conor Dooley <conor.dooley@...rochip.com>

Cheers,
Conor.

> +
> +  vdd3v3-supply:
> +    description: power supply (3.3V)
> +
> +  reset-gpios: true
> +
> +required:
> +  - compatible
> +  - reg
> +  - '#phy-cells'
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/gpio/gpio.h>
> +
> +    i2c {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        redriver@4f {
> +            compatible = "nxp,ptn3222";
> +            reg = <0x4f>;
> +            #phy-cells = <0>;
> +            vdd3v3-supply = <&vreg_3p3>;
> +            vdd1v8-supply = <&vreg_1p8>;
> +            reset-gpios = <&gpio_reset GPIO_ACTIVE_LOW>;
> +        };
> +    };
> +...
> 
> -- 
> 2.39.2
> 

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