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Date:   Fri, 29 Apr 2022 02:56:42 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Jianqun Xu <jay.xu@...k-chips.com>
Cc:     kuba@...nel.org, davem@...emloft.net, joabreu@...opsys.com,
        alexandre.torgue@...com, peppe.cavallaro@...com,
        netdev@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-rockchip@...ts.infradead.org
Subject: Re: [PATCH V2] ethernet: stmmac: support driver work for DTs without
 child queue node

On Fri, Apr 29, 2022 at 08:46:05AM +0800, Jianqun Xu wrote:
> The driver use the value of property 'snps,rx-queues-to-use' to loop
> same numbers child nodes as queues, such as:
> 
>     gmac {
>         rx-queues-config {
>             snps,rx-queues-to-use = <1>;
>             queue0 {
>                 // nothing need here.
> 	    };
> 	};
>     };
> 
> Since a patch for dtc from rockchip will delete all node without any
> properties or child node, the queue0 node will be deleted, that caused
> the driver fail to probe:

Is this the in tree dtc? Do you have a commit hash for it? That should
probably be used as a Fixes: tag. Or that change to dtc needs
reverting because it breaks stuff.

	  Andrew

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