[PATCH 1/3] dt-bings: net: fsl,fec: update compatible item

[Wei Fang]

> -----Original Message-----
> From: Krzysztof Kozlowski <krzysztof.kozlowski at linaro.org>
> Sent: 2022年8月19日 14:32
> To: Peng Fan <peng.fan at nxp.com>; Wei Fang <wei.fang at nxp.com>; Shawn
> Guo <shawnguo at kernel.org>
> Cc: davem at davemloft.net; edumazet at google.com; kuba at kernel.org;
> pabeni at redhat.com; robh+dt at kernel.org; krzysztof.kozlowski+dt at linaro.org;
> s.hauer at pengutronix.de; netdev at vger.kernel.org; devicetree at vger.kernel.org;
> linux-kernel at vger.kernel.org; kernel at pengutronix.de; festevam at gmail.com;
> dl-linux-imx <linux-imx at nxp.com>; Jacky Bai <ping.bai at nxp.com>;
> sudeep.holla at arm.com; linux-arm-kernel at lists.infradead.org; Aisheng Dong
> <aisheng.dong at nxp.com>
> Subject: Re: [PATCH 1/3] dt-bings: net: fsl,fec: update compatible item
> 
> On 19/08/2022 06:13, Peng Fan wrote:
> >>>
> >> Sorry, I did not explain clearly last time, I just mentioned that
> >> imx8ulp fec was totally reused from imx6ul and was a little different from
> imx6q.
> >> So what should I do next? Should I fix the binding doc ?
> >
> > Just my understanding, saying i.MX6Q supports feature A, i.MX6UL
> > support feature A + B, Then i.MX6UL is compatible with i.MX6Q.
> 
> Or if i.MX8ULP can bind with any previous compatible and still work (with
> limited subset of features).
> 
> >
> > If upper is true from hardware level, then i.MX8ULP FEC node should
> > contain 8ulp, 6ul, 6q.
> >
> > But the list may expand too long if more and more devices are
> > supported and hardware backward compatible
> 
> True. I guess three items is the limit and anything newer should restart the
> sequence.
> 

So, the binding doc doesn't need to be fixed ?