linux-kernel - Re: [PATCH v3 4/9] arm64: dts: imx8mm-evk: add the pcie phy support

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Message-ID: <ca1e71abe4c87ae2be6e3a3fa92ac79a6da4b6c4.camel@pengutronix.de>
Date:   Fri, 15 Oct 2021 20:32:35 +0200
From:   Lucas Stach <l.stach@...gutronix.de>
To:     Richard Zhu <hongxing.zhu@....com>, tharvey@...eworks.com,
        kishon@...com, vkoul@...nel.org, robh@...nel.org,
        galak@...nel.crashing.org, shawnguo@...nel.org
Cc:     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 v3 4/9] arm64: dts: imx8mm-evk: add the pcie phy support

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@....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>;