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: <6bc2b72b-7bcc-e5e8-b4e3-9b254e786c40@samsung.com>
Date:   Thu, 27 Oct 2016 17:48:44 +0200
From:   Sylwester Nawrocki <s.nawrocki@...sung.com>
To:     Javier Martinez Canillas <javier@....samsung.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

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.

-- 
Regards,
Sylwester