From: "Cousson, Benoit" <b-cousson@ti.com>
To: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: "Shilimkar, Santosh" <santosh.shilimkar@ti.com>,
Archit Taneja <a0393947@ti.com>, Paul Walmsley <paul@pwsan.com>,
linux-omap <linux-omap@vger.kernel.org>,
Kevin Hilman <khilman@ti.com>
Subject: Re: OMAP4 errata i740
Date: Fri, 30 Mar 2012 14:02:57 +0200 [thread overview]
Message-ID: <4F75A0F1.4030904@ti.com> (raw)
In-Reply-To: <1333108748.1932.37.camel@deskari>
On 3/30/2012 1:59 PM, Tomi Valkeinen wrote:
> On Fri, 2012-03-30 at 16:50 +0530, Shilimkar, Santosh wrote:
>
>> Exactly. That's what I mean. You tweak sysconfig or clockdomain,
>> both are messy.
>>
>> if one need to choose between two bad options, I guess sysconifig
>> one is better because that is local to IPs and there is some way today
>> for drivers to manage sysconfig directly.
>
> If the driver touches sysconfig, isn't it possible that hwmod/something
> just reverts the changes? I mean, sysconfig register is supposedly
> "owned" by the arch code, and if the driver modifies it there could be a
> race condition.
No because we had to expose API from hwmod core code to do that already
because of various HW bugs.
So you will not access it directly but through the hwmod API.
The only issue is that these API are exposed today through pdata
function pointers, and thus this is not usable in a DT case :-(
Regards,
Benoit
next prev parent reply other threads:[~2012-03-30 12:03 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-30 8:07 OMAP4 errata i740 Tomi Valkeinen
2012-03-30 8:21 ` Shilimkar, Santosh
2012-03-30 8:26 ` Tomi Valkeinen
2012-03-30 8:31 ` Santosh Shilimkar
2012-03-30 8:34 ` Archit Taneja
2012-03-30 8:44 ` Santosh Shilimkar
2012-03-30 10:23 ` Cousson, Benoit
2012-03-30 10:29 ` Santosh Shilimkar
2012-03-30 10:56 ` Archit Taneja
2012-03-30 11:04 ` Shilimkar, Santosh
2012-03-30 11:17 ` Archit Taneja
2012-03-30 11:20 ` Shilimkar, Santosh
2012-03-30 11:59 ` Tomi Valkeinen
2012-03-30 12:02 ` Cousson, Benoit [this message]
2012-03-30 12:06 ` Tomi Valkeinen
2012-03-30 12:00 ` Cousson, Benoit
2012-03-30 12:24 ` Santosh Shilimkar
2012-03-30 10:08 ` Cousson, Benoit
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