linux-kernel - Re: [PATCH v3 2/3] dt-bindings: phy: Add i.MX8Q HSIO SerDes PHY binding

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Date: Wed, 24 Apr 2024 13:04:27 +0100
From: Conor Dooley <conor@...nel.org>
To: Richard Zhu <hongxing.zhu@....com>
Cc: vkoul@...nel.org, kishon@...nel.org, robh+dt@...nel.org,
	krzysztof.kozlowski+dt@...aro.org, frank.li@....com,
	conor+dt@...nel.org, linux-phy@...ts.infradead.org,
	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, kernel@...gutronix.de,
	imx@...ts.linux.dev
Subject: Re: [PATCH v3 2/3] dt-bindings: phy: Add i.MX8Q HSIO SerDes PHY
 binding

On Wed, Apr 24, 2024 at 02:21:22PM +0800, Richard Zhu wrote:
> Add i.MX8QM and i.MX8QXP HSIO SerDes PHY binding.
> Introduce one HSIO configuration 'fsl,hsio-cfg', which need be set at
> initialization according to board design.
> 
> Signed-off-by: Richard Zhu <hongxing.zhu@....com>
> ---
>  .../bindings/phy/fsl,imx8qm-hsio.yaml         | 146 ++++++++++++++++++
>  1 file changed, 146 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/phy/fsl,imx8qm-hsio.yaml
> 
> diff --git a/Documentation/devicetree/bindings/phy/fsl,imx8qm-hsio.yaml b/Documentation/devicetree/bindings/phy/fsl,imx8qm-hsio.yaml
> new file mode 100644
> index 000000000000..3e2824d1616c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/phy/fsl,imx8qm-hsio.yaml
> @@ -0,0 +1,146 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/phy/fsl,imx8qm-hsio.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Freescale i.MX8QM SoC series HSIO SERDES PHY
> +
> +maintainers:
> +  - Richard Zhu <hongxing.zhu@....com>
> +
> +properties:
> +  compatible:
> +    enum:
> +      - fsl,imx8qm-hsio
> +      - fsl,imx8qxp-hsio
> +  reg:
> +    minItems: 4
> +    maxItems: 4
> +
> +  "#phy-cells":
> +    const: 3
> +    description:
> +      The first defines the type of the PHY refer to the include phy.h.
> +      The second defines controller index.
> +      The third defines the lane mask of the lane ID, indicated which
> +      lane is used by the PHY. They are defined as HSIO_LAN* in
> +      dt-bindings/phy/phy-imx8-pcie.h
> +
> +  reg-names:
> +    items:
> +      - const: reg
> +      - const: phy
> +      - const: ctrl
> +      - const: misc
> +
> +  clocks:
> +    minItems: 5
> +    maxItems: 14
> +
> +  clock-names:
> +    minItems: 5
> +    maxItems: 14
> +
> +  fsl,hsio-cfg:
> +    description: Refer macro HSIO_CFG* include/dt-bindings/phy/phy-imx8-pcie.h.
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +
> +  fsl,refclk-pad-mode:
> +    description:
> +      Specifies the mode of the refclk pad used. It can be UNUSED(PHY
> +      refclock is derived from SoC internal source), INPUT(PHY refclock
> +      is provided externally via the refclk pad) or OUTPUT(PHY refclock
> +      is derived from SoC internal source and provided on the refclk pad).
> +      Refer include/dt-bindings/phy/phy-imx8-pcie.h for the constants
> +      to be used.
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    default: IMX8_PCIE_REFCLK_PAD_OUTPUT

My comments on this are still not addressed. Please go back and read my
comments about this property on v1.

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