linux-kernel - Re: [RFC PATCH 2/2] net: phy: dp83869: fix mii mode when rgmii strap cfg is used

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Date:   Thu, 27 Apr 2023 14:04:03 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Siddharth Vadapalli <s-vadapalli@...com>
Cc:     hkallweit1@...il.com, linux@...linux.org.uk, davem@...emloft.net,
        edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, srk@...com
Subject: Re: [RFC PATCH 2/2] net: phy: dp83869: fix mii mode when rgmii strap
 cfg is used

> > If you say so. I was just thinking you could give the poor software
> > engineer a hint the hardware engineer has put on strapping resistors
> > which means the PHY is not going to work.
> 
> I understand now. I will update this patch to add a print if the MII mode is not
> valid with the configured "dp83869->mode". Would you suggest using a dev_err()
> or a dev_dbg()?

dev_err(). And you can return -EINVAL when asked to set the interface
mode.

	Andrew