linux-kernel - Re: [alsa-devel] [RFC PATCH 2/2] ASoC: samsung: Print a one-time message if the snow driver's probe defers

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Message-ID: <bc156581-dee2-371d-6b5a-ecf811caf958@osg.samsung.com>
Date:   Thu, 27 Oct 2016 12:51:12 -0300
From:   Javier Martinez Canillas <javier@....samsung.com>
To:     Sylwester Nawrocki <s.nawrocki@...sung.com>
Cc:     linux-kernel@...r.kernel.org, alsa-devel@...a-project.org,
        Sangbeom Kim <sbkim73@...sung.com>,
        Takashi Iwai <tiwai@...e.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Mark Brown <broonie@...nel.org>,
        Marek Szyprowski <m.szyprowski@...sung.com>
Subject: Re: [alsa-devel] [RFC PATCH 2/2] ASoC: samsung: Print a one-time
 message if the snow driver's probe defers

Hello Sylwester,

On 10/27/2016 12:48 PM, Sylwester Nawrocki wrote:
> On 10/27/2016 05:38 PM, Javier Martinez Canillas wrote:
>> +Marek,
>>
>> Hello,
>>
>> On 10/20/2016 08:27 AM, Sylwester Nawrocki wrote:
>>> On 10/20/2016 12:41 PM, Javier Martinez Canillas wrote:
>>>> I see no relevant changes in exynos_defconfig between v4.7..v4.8 and
>>>> also no changes in drivers/Makefile that could cause things to be
>>>> initialized on a different order.
>>>
>>> I remember this
>>>
>>> commit 6eb1c9496b81680f2cd2e0eda06c531317e2e28d
>>> clk: probe common clock drivers earlier
>>>
>>> going in recently, but it's rather dubious it could cause such trouble.
>>>
>>> Anyway, I'd try to add some debug prints to samsung_i2s_probe() to see
>>> what's the issue with the CPU DAI registration.
>>>
>>
>> fyi, Marek already fixed this issue on patch "ASoC: samsung: get access to
>> DMA engine early to defer probe properly":
> 
> Yeah, we have spent some time together today investigating this issue.
> 

Thanks a lot. I thought you would be aware but wanted to mention it on this
thread for completeness.

Best regards,
-- 
Javier Martinez Canillas
Open Source Group
Samsung Research America