From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Date: Thu, 04 Jan 2018 19:18:35 +0000
Subject: Re: [PATCH] sh_eth: fix TSU resource handling
Message-Id: <20180104.141835.1836351687367008943.davem@davemloft.net>
List-Id: <linux-sh.vger.kernel.org>
References: <20180103170955.343662722@cogentembedded.com>
In-Reply-To: <20180103170955.343662722@cogentembedded.com>
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To: sergei.shtylyov@cogentembedded.com
Cc: netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-sh@vger.kernel.org, nobuhiro.iwamatsu.yj@renesas.com

From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Date: Wed, 03 Jan 2018 20:09:49 +0300

> When switching  the driver to the managed device API,  I managed to break
> the  case of a  dual Ether devices sharing a single TSU: the 2nd Ether port
> wouldn't probe. Iwamatsu-san has tried to fix this but his patch was buggy
> and he then dropped the ball...
> 
> The solution is to  limit calling devm_request_mem_region() to the first
> of  the two  ports  sharing the same TSU, so devm_ioremap_resource() can't
> be used anymore for the TSU resource...
> 
> Fixes: d5e07e69218f ("sh_eth: use managed device API")
> Reported-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>

Applied and queued up for -stable, thanks.