netdev - Re: [PATCH v4 08/18] net: davinci_emac: potentially get the MAC address from MTD

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Message-ID: <83c551d9-9e66-fc72-7f8d-c43337d05a71@lechnology.com>
Date:   Tue, 3 Jul 2018 11:47:16 -0500
From:   David Lechner <david@...hnology.com>
To:     Florian Fainelli <f.fainelli@...il.com>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Sekhar Nori <nsekhar@...com>,
        Kevin Hilman <khilman@...nel.org>,
        Russell King <linux@...linux.org.uk>,
        Grygorii Strashko <grygorii.strashko@...com>,
        "David S . Miller" <davem@...emloft.net>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Lukas Wunner <lukas@...ner.de>, Rob Herring <robh@...nel.org>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        Ivan Khoronzhuk <ivan.khoronzhuk@...aro.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Andrew Lunn <andrew@...n.ch>, Jonathan Corbet <corbet@....net>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-omap@...r.kernel.org, netdev@...r.kernel.org,
        Bartosz Golaszewski <bgolaszewski@...libre.com>
Subject: Re: [PATCH v4 08/18] net: davinci_emac: potentially get the MAC
 address from MTD

On 07/03/2018 11:39 AM, Florian Fainelli wrote:
> 
> 
> On 06/29/2018 02:40 AM, Bartosz Golaszewski wrote:
>> From: Bartosz Golaszewski <bgolaszewski@...libre.com>
>>
>> On da850-evm board we can read the MAC address from MTD. It's currently
>> done in the relevant board file, but we want to get rid of all the MAC
>> reading callbacks from the board file (SPI and NAND). Move the reading
>> of the MAC address from SPI to the emac driver's probe function.
> 
> This should be made something generic to all drivers, not just something
> the davinci_emac driver does, something like this actually:
> 
> https://lkml.org/lkml/2018/3/24/312
> 

I was thinking about suggesting adding a nvmem provider for MTD devices
as well. It would fix the kernel config dependency problems I was running
into since nvmem lookups can do -EPROBE_DEFER.