From mboxrd@z Thu Jan  1 00:00:00 1970
From: Florian Vaussard <florian.vaussard-p8DiymsW2f8@public.gmane.org>
Subject: Re: [PATCH 4/7] iommu/omap: Allow enable/disable even without pdata
Date: Mon, 23 Dec 2013 22:19:45 +0100
Message-ID: <52B8A8F1.4040906@epfl.ch>
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To: "Anna, Suman" <s-anna-l0cyMroinI0@public.gmane.org>, Joerg Roedel <joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>, Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>, =?ISO-8859-1?Q?Beno=EEt_Cousson?= <bcousson-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
Cc: Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>, "devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" <devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, Pawel Moll <pawel.moll-5wv7dgnIgG8@public.gmane.org>, Ian Campbell <ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org>, "linux-doc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" <linux-doc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, "linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, Rob Herring <rob.herring-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org>, "iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org" <iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org>, Rob Landley <rob-VoJi6FS/r0vR7s880joybQ@public.gmane.org>, Kumar Gala <galak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>, Grant Likely <grant.likely-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>, "linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" <linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, "linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org" <linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>
List-Id: linux-omap@vger.kernel.org

Hi Suman,

On 12/23/2013 08:05 PM, Anna, Suman wrote:
> Hi Florian,
> 
> On 12/17/2013 06:53 AM, Florian Vaussard wrote:
>> When booting with a devietree, no platform data is provided. Do not
>> prematurely
>> exit iommu_enable() and iommu_disable() in such a case.
> 
> Platform data may still be needed if we were to go with the pdata quirks
> approach for handling resets. You may need to revise the patch
> description then, but the change itself may be ok if supporting only DT
> devices.
> 

Indeed, this should be mentioned in the commit message. I would go for
a pdata-quirk until we have a proper reset-controller.

Regards,

Florian