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Subject: Re: [PATCH v3 4/9] arm64: dts: imx8mm-evk: add the pcie phy support
From:   Lucas Stach <l.stach@pengutronix.de>
To:     Richard Zhu <hongxing.zhu@nxp.com>, tharvey@gateworks.com,
        kishon@ti.com, vkoul@kernel.org, robh@kernel.org,
        galak@kernel.crashing.org, shawnguo@kernel.org
Cc:     linux-phy@lists.infradead.org, devicetree@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        kernel@pengutronix.de, linux-imx@nxp.com
Date:   Fri, 15 Oct 2021 20:32:35 +0200
In-Reply-To: <1634028078-2387-5-git-send-email-hongxing.zhu@nxp.com>
References: <1634028078-2387-1-git-send-email-hongxing.zhu@nxp.com>
         <1634028078-2387-5-git-send-email-hongxing.zhu@nxp.com>
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Am Dienstag, dem 12.10.2021 um 16:41 +0800 schrieb Richard Zhu:
> Add the PCIe PHY support on iMX8MM EVK boards.
> And set the default reference clock mode.
> 
> Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
> ---
>  arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
> index e033d0257b5a..2d0684ac82f6 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
> @@ -5,6 +5,7 @@
>  
>  /dts-v1/;
>  
> +#include <dt-bindings/phy/phy-imx8-pcie.h>
>  #include <dt-bindings/usb/pd.h>
>  #include "imx8mm.dtsi"
>  
> @@ -289,6 +290,12 @@ pca6416: gpio@20 {
>  	};
>  };
>  
> +&pcie_phy {
> +	fsl,refclk-pad-mode = <IMX8_PCIE_REFCLK_PAD_INPUT>;
> +	clocks = <&clk IMX8MM_CLK_DUMMY>;

Please add a fixed clock DT node for the external clock generator and
use this one instead of the dummy clock here.

Regards,
Lucas

> +	status = "okay";
> +};
> +
>  &sai3 {
>  	pinctrl-names = "default";
>  	pinctrl-0 = <&pinctrl_sai3>;