linux-kernel - Re: [PATCH 24/25] MIPS: Alchemy: use the OHCI platform driver

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Message-ID: <CAOLZvyGSbqN-wMDYJcoB_6GPXvZo3wKPMn1oCWxyFETOerMLSA@mail.gmail.com>
Date:	Wed, 3 Oct 2012 17:26:52 +0200
From:	Manuel Lauss <manuel.lauss@...il.com>
To:	Florian Fainelli <florian@...nwrt.org>
Cc:	stern@...land.harvard.edu, linux-usb@...r.kernel.org,
	Ralf Baechle <ralf@...ux-mips.org>,
	Manuel Lauss <manuel.lauss@...glemail.com>,
	Thomas Meyer <thomas@...3r.de>,
	"David S. Miller" <davem@...emloft.net>, linux-mips@...ux-mips.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 24/25] MIPS: Alchemy: use the OHCI platform driver

On Wed, Oct 3, 2012 at 5:24 PM, Florian Fainelli <florian@...nwrt.org> wrote:
> On Wednesday 03 October 2012 17:21:37 Manuel Lauss wrote:
>> On Wed, Oct 3, 2012 at 5:03 PM, Florian Fainelli <florian@...nwrt.org> wrote:
>> > This also greatly simplifies the power_{on,off} callbacks and make them
>> > work on platform device id instead of checking the OHCI controller base
>> > address like what was done in ohci-au1xxx.c.
>>
>> That was by design -- the base address is far more reliable in identifying
> the
>> correct controller instance than the platform device id.   There are systems
>> in the field which don't use the alchemy/common/platform.c file at all.
>
> Fair enough, but the way it was done previously was very error-prone if the
> base address changed for any reason in the platform code, and you did not
> notice it had to be changed in the OHCI driver too, then it simply did not

Since the Alchemy line is dead this point is moot.


> work. By systems in the field you mean out of tree users? If so, I'd say that
> it's up to you to get them maintained or merged.

I'm not against the patch at all, quite the contrary.

Manuel
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