linux-kernel - RE: [PATCH v3 3/9] arm64: dts: imx8mm: add the pcie phy support

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Message-ID: <AS8PR04MB867664014F9C0972C1B6B8F18C809@AS8PR04MB8676.eurprd04.prod.outlook.com>
Date:   Fri, 22 Oct 2021 01:57:38 +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 3/9] arm64: dts: imx8mm: add the pcie phy support

> -----Original Message-----
> From: Lucas Stach <l.stach@...gutronix.de>
> Sent: Saturday, October 16, 2021 2:30 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 3/9] arm64: dts: imx8mm: 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 platforms.
> >
> > Signed-off-by: Richard Zhu <hongxing.zhu@....com>
> > ---
> >  arch/arm64/boot/dts/freescale/imx8mm.dtsi | 13 +++++++++++++
> >  1 file changed, 13 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
> b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
> > index c2f3f118f82e..ac5d11466608 100644
> > --- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
> > +++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
> > @@ -1135,6 +1135,19 @@ usbmisc2: usbmisc@...50200 {
> >  				reg = <0x32e50200 0x200>;
> >  			};
> >
> > +			pcie_phy: pcie-phy@...00000 {
> > +				compatible = "fsl,imx8mm-pcie-phy";
> > +				reg = <0x32f00000 0x10000>;
> > +				clocks = <&clk IMX8MM_CLK_PCIE1_PHY>;
> > +				clock-names = "phy";
> 
> Clock name specified in the binding is "ref".
[Richard Zhu] Would changed later, thanks.

Best Regards
Richard Zhu

> 
> > +				assigned-clocks = <&clk IMX8MM_CLK_PCIE1_PHY>;
> > +				assigned-clock-rates = <100000000>;
> > +				assigned-clock-parents = <&clk
> IMX8MM_SYS_PLL2_100M>;
> > +				resets = <&src IMX8MQ_RESET_PCIEPHY>;
> > +				reset-names = "pciephy";
> > +				#phy-cells = <0>;
> > +				status = "disabled";
> > +			};
> >  		};
> >
> >  		dma_apbh: dma-controller@...00000 {
>