From: Andrew Lunn <andrew@lunn.ch>
To: Andy Duan <fugang.duan@nxp.com>
Cc: "davem@davemloft.net" <davem@davemloft.net>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
"martin.fuzzey@flowbird.group" <martin.fuzzey@flowbird.group>,
"robh+dt@kernel.org" <robh+dt@kernel.org>,
"shawnguo@kernel.org" <shawnguo@kernel.org>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>
Subject: Re: [EXT] Re: [PATCH net 3/4] ARM: dts: imx6: update fec gpr property to match new format
Date: Thu, 21 May 2020 15:07:00 +0200 [thread overview]
Message-ID: <20200521130700.GC657910@lunn.ch> (raw)
In-Reply-To: <AM6PR0402MB3607541D33B1C61476022D0AFFB70@AM6PR0402MB3607.eurprd04.prod.outlook.com>
> Andrew, patch#1 in the series will parse the property to get register offset and bit.
> Patch#2 describes the property format as below:
> <&gpr req_gpr req_bit>.
> gpr is the phandle to general purpose register node.
> req_gpr is the gpr register offset for ENET stop request.
> req_bit is the gpr bit offset for ENET stop request.
>
> All i.MX support wake-on-lan, imx6q/dl/qp is the first platforms in upstream to support it.
> As you know, most of i.MX chips has two ethernet instances, they have different gpr bit.
>
> gpr is used to enter/exit stop mode for soc. So it can be defined in dtsi file.
> "fsl,magic-packet;" property is define the board wakeup capability.
>
> I am not sure whether above information is clear for you why to add the patch set.
I understand the patch. What is missing is an actual user, where you
have two interfaces, doing WOL, with different values for gpr. We
don't add new kernel APIs without a user.
Andrew
next prev parent reply other threads:[~2020-05-21 13:07 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-20 8:31 [PATCH net 0/4] net: ethernet: fec: move GPR reigster offset and bit into DT fugang.duan
2020-05-20 8:31 ` [PATCH net 1/4] net: ethernet: fec: move GPR register " fugang.duan
2020-05-20 16:54 ` Jakub Kicinski
2020-05-21 2:40 ` [EXT] " Andy Duan
2020-05-23 9:55 ` Fuzzey, Martin
2020-05-25 2:36 ` [EXT] " Andy Duan
2020-05-20 8:31 ` [PATCH net 2/4] dt-bindings: fec: update the gpr property fugang.duan
2020-05-23 10:15 ` Fuzzey, Martin
2020-05-25 3:16 ` [EXT] " Andy Duan
2020-05-20 8:31 ` [PATCH net 3/4] ARM: dts: imx6: update fec gpr property to match new format fugang.duan
2020-05-20 17:03 ` Andrew Lunn
2020-05-21 3:15 ` [EXT] " Andy Duan
2020-05-21 13:07 ` Andrew Lunn [this message]
2020-05-22 1:01 ` Andy Duan
2020-05-22 18:02 ` Fuzzey, Martin
2020-05-22 23:50 ` Andrew Lunn
2020-05-25 2:32 ` Andy Duan
2020-05-25 2:29 ` Andy Duan
2020-05-20 8:31 ` [PATCH net 4/4] ARM: dts: imx6qdl-sabresd: enable fec wake-on-lan fugang.duan
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