linux-kernel - Re: [PATCH v2 0/6] Port Tegra to generic clk framework

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Message-ID: <4FF5BAB2.40007@nvidia.com>
Date:	Thu, 5 Jul 2012 21:32:58 +0530
From:	Prashant Gaikwad <pgaikwad@...dia.com>
To:	Stephen Warren <swarren@...dotorg.org>
CC:	"mturquette@...com" <mturquette@...com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
	"linux@....linux.org.uk" <linux@....linux.org.uk>,
	"ccross@...roid.com" <ccross@...roid.com>,
	"olof@...om.net" <olof@...om.net>,
	Peter De Schrijver <pdeschrijver@...dia.com>
Subject: Re: [PATCH v2 0/6] Port Tegra to generic clk framework

On Thursday 05 July 2012 09:02 PM, Stephen Warren wrote:
> On 07/03/2012 11:38 PM, Prashant Gaikwad wrote:
>> On Tuesday 03 July 2012 09:59 PM, Stephen Warren wrote:
>>> On 07/03/2012 05:09 AM, Prashant Gaikwad wrote:
>>>> This patch set ports Tegra clock code to generic clock framework.
>>>>
>>>> Depends on
>>>> [PATCH v3 0/9] Add clk_prepare/clk_unprepare series
>>>> [PATCH] ARM: tegra: Remove second instance of uart clk
>>>> [PATCH] dma: tegra: add clk_prepare/clk_unprepare
>>>> [PATCH] ARM: tegra: dma: rename driver name for clock to "tegra-apbdma"
>>>>
>>>> Tested on Ventana and Cardhu
>>>>
>>>> v2:
>>>>    - Rebased on Tegra's for-3.6/common-clk
>>> OK, this applies to for-3.6/common-clk without issue now. However, there
>>> are still runtime problems:
>>>
>>> On Tegra20(Ventana), running Tegra's for-next branch with these patches
>>> merged in, if I play audio, the sound is much too low a pitch; the I2S
>>> clock must be being set too low. Also, if I play the same file twice,
>>> once encoded as 48KHz once encoded as 44.1KHz, the pitch is different.
>>>
>>> On Tegra20(Ventana), running next-20120703 plus a few local patches for
>>> regulators plus these common clock patches, then I see the same
>>> segfaults during boot that I mentioned before. It seems something in
>>> linux-next not in Tegra's for-next branch is breaking the common clock
>>> code for us.
>> Does these local patches include any changes in clock init table? Is it
>> possible to share the changes?
> My local dev branch is usually available at:
> git://nv-tegra.nvidia.com/user/swarren/linux-2.6 linux-next_common
>
> The local patches are mostly regulator support work-in-progress at the
> moment, so nothing to do with clocks, except one minor warning fix.
>
> I see you've posted v3; I assume that means you've found/fixed the
> issues - I'll go test.
I have fixed audio issue in v3. Another issue related to Tegra20 boot 
depends on the fix posted by Rajendra.
I have mentioned the dependency on the fix in v3.
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