Re: [PATCH 1/2] arm64: dts: imx8mm-evk: add phy-reset-gpios for fec1

From: Marco Felsch <m.felsch@pengutronix.de>
To: Peng Fan <peng.fan@nxp.com>
Cc: "robh+dt@kernel.org" <robh+dt@kernel.org>,
	"mark.rutland@arm.com" <mark.rutland@arm.com>,
	"shawnguo@kernel.org" <shawnguo@kernel.org>,
	"s.hauer@pengutronix.de" <s.hauer@pengutronix.de>,
	"kernel@pengutronix.de" <kernel@pengutronix.de>,
	"festevam@gmail.com" <festevam@gmail.com>,
	"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
	Andy Duan <fugang.duan@nxp.com>, Jacky Bai <ping.bai@nxp.com>,
	Anson Huang <anson.huang@nxp.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	dl-linux-imx <linux-imx@nxp.com>,
	Leonard Crestez <leonard.crestez@nxp.com>,
	Daniel Baluta <daniel.baluta@nxp.com>,
	"linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>, Jun Li <jun.li@nxp.com>
Subject: Re: [PATCH 1/2] arm64: dts: imx8mm-evk: add phy-reset-gpios for fec1
Date: Mon, 21 Oct 2019 11:50:13 +0200	[thread overview]
Message-ID: <20191021095013.3lm2slv6glqx5nnh@pengutronix.de> (raw)
In-Reply-To: <AM0PR04MB448170DA0486707775C3DABA88690@AM0PR04MB4481.eurprd04.prod.outlook.com>

On 19-10-21 09:46, Peng Fan wrote:
> > Subject: Re: [PATCH 1/2] arm64: dts: imx8mm-evk: add phy-reset-gpios for
> > fec1
> > 
> > Hi,
> > 
> > On 19-10-21 09:21, Peng Fan wrote:
> > > From: Peng Fan <peng.fan@nxp.com>
> > >
> > > We should not rely on U-Boot to configure the phy reset.

nitpick: s/U-Boot/bootloader/ ?

> > > So introduce phy-reset-gpios property to let Linux handle phy reset
> > > itself.
> > >
> > > Signed-off-by: Peng Fan <peng.fan@nxp.com>
> > > ---
> > >  arch/arm64/boot/dts/freescale/imx8mm-evk.dts | 1 +
> > >  1 file changed, 1 insertion(+)
> > >
> > > diff --git a/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
> > > b/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
> > > index faefb7182af1..e4d66f7db09d 100644
> > > --- a/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
> > > +++ b/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
> > > @@ -80,6 +80,7 @@
> > >  	pinctrl-0 = <&pinctrl_fec1>;
> > >  	phy-mode = "rgmii-id";
> > >  	phy-handle = <&ethphy0>;
> > > +	phy-reset-gpios = <&gpio4 22 GPIO_ACTIVE_LOW>;
> > 
> > Where is the pinctrl done?
> 
> https://elixir.bootlin.com/linux/v5.4-rc2/source/arch/arm64/boot/dts/freescale/imx8mm-evk.dts#L328

Thanks :)

Reviewed-by: Marco Felsch <m.felsch@pengutronix.de> 

Regards,
  Marco 

> Regards,
> Peng.
> 
> > 
> > Regards,
> >   Marco
> > 
> > >  	fsl,magic-packet;
> > >  	status = "okay";
> > >
> > > --
> > > 2.16.4
> > >
> > >
> > >
> > 
> > --
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