From mboxrd@z Thu Jan  1 00:00:00 1970
From: grinberg@compulab.co.il (Igor Grinberg)
Date: Sun, 27 Mar 2011 12:09:20 +0200
Subject: [PATCH RFC] ARM: PXA27x: CPUFREQ: Don't use fastbus mode
In-Reply-To: <201103271248.02774.anarsoul@gmail.com>
References: <1301169103-23968-1-git-send-email-anarsoul@gmail.com>
	<201103271028.56672.anarsoul@gmail.com>
	<4D8EFEC1.7010803@compulab.co.il>
	<201103271248.02774.anarsoul@gmail.com>
Message-ID: <4D8F0CD0.8010203@compulab.co.il>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On 03/27/11 11:48, Vasily Khoruzhick wrote:

> On Sunday 27 March 2011 12:09:21 Igor Grinberg wrote:
>> Possibly, but Z2 is not the only one using PXA27x.
>> And of course you lose performance, unless you don't care,
>> because if it does not work at all, you don't care about performance,
>> but again it is wrong to force all PXA27x based boards to this.
> Ok, that's why I've sent this patch with RFC in subject - Z2 is the only 
> PXA270-based device I own :)
>
>> cm-x270 and em-x270 work well with fast bus bit set with userspace governor
>> and with the above frequencies.
> What about ondemand and conservative governors?

I haven't tested those and I don't think I will have an opportunity in the near future,
but is it really important also to test those? Are they different in any special way?

>> I'd check the hardware (especially DRAM).
>> And I agree with Marek, if you want to disable the fast bus,
>> then it should be board (or otherwise) controllable.
> Ok
>
> Regards
> Vasily

-- 
Regards,
Igor.