netdev - Re: dp83867: Why does ti,fifo-depth set only TX, and why is it mandatory?

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Message-ID: <20191123210001.GA20458@localhost>
Date:   Sat, 23 Nov 2019 23:00:01 +0200
From:   Adrian Bunk <bunk@...nel.org>
To:     Dan Murphy <dmurphy@...com>
Cc:     Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Heiner Kallweit <hkallweit1@...il.com>, netdev@...r.kernel.org
Subject: Re: dp83867: Why does ti,fifo-depth set only TX, and why is it
 mandatory?

On Thu, Nov 21, 2019 at 02:24:01PM -0600, Dan Murphy wrote:
> Adrian

Hi Dan,

>...
> OK the HW team said that FIFO depth is no longer a mandatory field to be
> written for either RGMII or SGMII.
> 
> So my suggestion here is that we deprecate, but support in the driver, the
> ti-fifo-depth, and add the already documented
> 
> rx-fifo-depth and tx-fifo-depth as optional DT entries.
> 
> So I can change the driver and DT docs and test the RGMII device as above as
> long as we are in agreement

sounds good to me.

> Dan

Thanks
Adrian