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Date: Fri, 29 Mar 2024 10:21:02 -0400
From: Frank Li <Frank.li@....com>
To: Richard Zhu <hongxing.zhu@....com>
Cc: vkoul@...nel.org, kishon@...nel.org, robh+dt@...nel.org,
	krzysztof.kozlowski+dt@...aro.org, 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, linux-imx@....com
Subject: Re: [PATCH v1 2/3] dt-bindings: phy: phy-imx8-pcie: Add binding for
 i.MX8Q HSIO SerDes PHY

On Fri, Mar 29, 2024 at 04:09:49PM +0800, Richard Zhu wrote:
> Add binding for controller ID and HSIO configuration setting of the
> i.MX8Q HSIO SerDes PHY.
> 
> Signed-off-by: Richard Zhu <hongxing.zhu@....com>
> ---
>  include/dt-bindings/phy/phy-imx8-pcie.h | 26 +++++++++++++++++++++++++
>  1 file changed, 26 insertions(+)

This one should be first patch. (1/3).

After fix small improve

Reviewed-by: Frank Li <Frank.Li@....com>

> 
> diff --git a/include/dt-bindings/phy/phy-imx8-pcie.h b/include/dt-bindings/phy/phy-imx8-pcie.h
> index 8bbe2d6538d8..5cd5580879fa 100644
> --- a/include/dt-bindings/phy/phy-imx8-pcie.h
> +++ b/include/dt-bindings/phy/phy-imx8-pcie.h
> @@ -11,4 +11,30 @@
>  #define IMX8_PCIE_REFCLK_PAD_INPUT	1
>  #define IMX8_PCIE_REFCLK_PAD_OUTPUT	2
>  
> +/*
> + * i.MX8QM HSIO subsystem has three lane PHYs and three controllers:
> + * PCIEA(2 lanes capapble PCIe controller), PCIEB (only support one
> + * lane) and SATA.

Suggest add empty line between segment.

> + * In the different use cases. PCIEA can be binded to PHY lane0, lane1
> + * or Lane0 and lane1. PCIEB can be binded to lane1 or lane2 PHY. SATA
> + * can only be binded to last lane2 PHY.
> + * Define i.MX8Q HSIO controller ID here to specify the controller
> + * binded to the PHY.
> + * Meanwhile, i.MX8QXP HSIO subsystem has one lane PHY and PCIEB(only
> + * support one lane) controller.
> + */
> +#define IMX8Q_HSIO_PCIEA_ID	0
> +#define IMX8Q_HSIO_PCIEB_ID	1
> +#define IMX8Q_HSIO_SATA_ID	2
> +
> +/*
> + * On i.MX8QM, PCIEA is mandatory required if the HSIO is enabled.
> + * Define configurations beside PCIEA is enabled.
> + * On i.MX8QXP, HSIO module only has PCIEB and one lane PHY.
> + * The "IMX8Q_HSIO_CFG_PCIEB" can be used on i.MX8QXP platforms.
> + */
> +#define IMX8Q_HSIO_CFG_SATA		1
> +#define IMX8Q_HSIO_CFG_PCIEB		2
> +#define IMX8Q_HSIO_CFG_PCIEBSATA	3
> +
>  #endif /* _DT_BINDINGS_IMX8_PCIE_H */
> -- 
> 2.37.1
> 

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