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From: Andrew Lunn <andrew-g2DYL2Zd6BY@public.gmane.org>
To: Richard Leitner
	<richard.leitner-WcANXNA0UjBBDgjK7y7TUQ@public.gmane.org>
Cc: fugang.duan-3arQi8VN3Tc@public.gmane.org,
	robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
	mark.rutland-5wv7dgnIgG8@public.gmane.org,
	netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	dev-M/VWbR8SM2SsTnJN9+BGXg@public.gmane.org
Subject: Re: [PATCH 2/2] net: ethernet: fsl: add phy reset after clk enable option
Date: Thu, 6 Jul 2017 15:55:57 +0200	[thread overview]
Message-ID: <20170706135557.GC8810@lunn.ch> (raw)
In-Reply-To: <1499346330-12166-2-git-send-email-richard.leitner-WcANXNA0UjBBDgjK7y7TUQ@public.gmane.org>

Hi Richard

> diff --git a/Documentation/devicetree/bindings/net/fsl-fec.txt b/Documentation/devicetree/bindings/net/fsl-fec.txt
> index 6f55bdd..1766579 100644
> --- a/Documentation/devicetree/bindings/net/fsl-fec.txt
> +++ b/Documentation/devicetree/bindings/net/fsl-fec.txt
> @@ -23,6 +23,9 @@ Optional properties:
>  - phy-handle : phandle to the PHY device connected to this device.
>  - fixed-link : Assume a fixed link. See fixed-link.txt in the same directory.
>    Use instead of phy-handle.
> +- phy-reset-after-clk-enable : If present then a phy reset and configuration
> +  will be performed everytime after the clocks are enabled. This is required
> +  for some PHYs to work properly.

It sounds like this issue will apply to any LAN8710 which has its
clock fiddled with. So this should be a centrally documented property,
which any MAC driver can implement. Please move the above text to
ethernet.txt, and instead have:

 - phy-reset-after-clk-enable : See ethernet.txt

 Thanks
	 Andrew
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WARNING: multiple messages have this Message-ID (diff)
From: Andrew Lunn <andrew@lunn.ch>
To: Richard Leitner <richard.leitner@skidata.com>
Cc: fugang.duan@nxp.com, robh+dt@kernel.org, mark.rutland@arm.com,
	netdev@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, dev@g0hl1n.net
Subject: Re: [PATCH 2/2] net: ethernet: fsl: add phy reset after clk enable option
Date: Thu, 6 Jul 2017 15:55:57 +0200	[thread overview]
Message-ID: <20170706135557.GC8810@lunn.ch> (raw)
In-Reply-To: <1499346330-12166-2-git-send-email-richard.leitner@skidata.com>

Hi Richard

> diff --git a/Documentation/devicetree/bindings/net/fsl-fec.txt b/Documentation/devicetree/bindings/net/fsl-fec.txt
> index 6f55bdd..1766579 100644
> --- a/Documentation/devicetree/bindings/net/fsl-fec.txt
> +++ b/Documentation/devicetree/bindings/net/fsl-fec.txt
> @@ -23,6 +23,9 @@ Optional properties:
>  - phy-handle : phandle to the PHY device connected to this device.
>  - fixed-link : Assume a fixed link. See fixed-link.txt in the same directory.
>    Use instead of phy-handle.
> +- phy-reset-after-clk-enable : If present then a phy reset and configuration
> +  will be performed everytime after the clocks are enabled. This is required
> +  for some PHYs to work properly.

It sounds like this issue will apply to any LAN8710 which has its
clock fiddled with. So this should be a centrally documented property,
which any MAC driver can implement. Please move the above text to
ethernet.txt, and instead have:

 - phy-reset-after-clk-enable : See ethernet.txt

 Thanks
	 Andrew

  parent reply	other threads:[~2017-07-06 13:55 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-06 13:05 [PATCH 1/2] net: ethernet: freescale: simplify fec_reset_phy Richard Leitner
2017-07-06 13:05 ` Richard Leitner
2017-07-06 13:05 ` Richard Leitner
     [not found] ` <1499346330-12166-1-git-send-email-richard.leitner-WcANXNA0UjBBDgjK7y7TUQ@public.gmane.org>
2017-07-06 13:05   ` [PATCH 2/2] net: ethernet: fsl: add phy reset after clk enable option Richard Leitner
2017-07-06 13:05     ` Richard Leitner
2017-07-06 13:05     ` Richard Leitner
     [not found]     ` <1499346330-12166-2-git-send-email-richard.leitner-WcANXNA0UjBBDgjK7y7TUQ@public.gmane.org>
2017-07-06 13:55       ` Andrew Lunn [this message]
2017-07-06 13:55         ` Andrew Lunn
     [not found]         ` <20170706135557.GC8810-g2DYL2Zd6BY@public.gmane.org>
2017-07-06 14:33           ` Richard Leitner
2017-07-06 14:33             ` Richard Leitner
2017-07-06 14:33             ` Richard Leitner
2017-07-07  5:30       ` Andy Duan
2017-07-07  5:30         ` Andy Duan
     [not found]         ` <AM4PR0401MB2260ECD4508E26FF16670004FFAA0-4rsfagO7TJxhEPOT2zA1/I3W/0Ik+aLCnBOFsp37pqbUKgpGm//BTAC/G2K4zDHf@public.gmane.org>
2017-07-07  5:50           ` Richard Leitner
2017-07-07  5:50             ` Richard Leitner
2017-07-07  7:03             ` Andy Duan
2017-07-07  9:52               ` Richard Leitner
2017-07-07 11:08                 ` Andy Duan
2017-07-07 11:16                   ` Richard Leitner
     [not found]                     ` <b68f444e-cea4-acaa-d1e9-7955a577ed35-WcANXNA0UjBBDgjK7y7TUQ@public.gmane.org>
2017-07-07 14:00                       ` Andrew Lunn
2017-07-07 14:00                         ` Andrew Lunn
2017-07-12  9:21                         ` Richard Leitner
     [not found]                           ` <e6b838e5-af7a-07be-42db-59b901cc04db-WcANXNA0UjBBDgjK7y7TUQ@public.gmane.org>
2017-07-12 13:40                             ` Andrew Lunn
2017-07-12 13:40                               ` Andrew Lunn
2017-07-10 13:26       ` Rob Herring
2017-07-10 13:26         ` Rob Herring

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