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

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Date:   Fri, 22 Oct 2021 01:58:53 +0000
From:   Richard Zhu <hongxing.zhu@....com>
To:     Lucas Stach <l.stach@...gutronix.de>,
        "tharvey@...eworks.com" <tharvey@...eworks.com>,
        "kishon@...com" <kishon@...com>,
        "vkoul@...nel.org" <vkoul@...nel.org>,
        "robh@...nel.org" <robh@...nel.org>,
        "galak@...nel.crashing.org" <galak@...nel.crashing.org>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>
CC:     "linux-phy@...ts.infradead.org" <linux-phy@...ts.infradead.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        dl-linux-imx <linux-imx@....com>
Subject: RE: [PATCH v3 4/9] arm64: dts: imx8mm-evk: add the pcie phy support

> -----Original Message-----
> From: Lucas Stach <l.stach@...gutronix.de>
> Sent: Saturday, October 16, 2021 2:33 AM
> 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; dl-linux-imx <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.
[Richard Zhu] Would be changed, and squashed to 8# patch of this series. Thanks.

Best Regards
Richard Zhu

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