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SubjectRe: [FAIL bisect] Sound card probe error
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Hi Krzysztof,

On 2018-05-14 14:29, Krzysztof Kozlowski wrote:
> On Mon, May 14, 2018 at 2:22 PM, Sylwester Nawrocki
> <s.nawrocki@samsung.com> wrote:
>> Hi,
>>
>> On 05/14/2018 12:17 PM, Krzysztof Kozlowski wrote:
>>
>>> Bisected to:
>>> 8c123c14bbba4add148536b6d47a9226deda2f7a is the first bad commit
>>> commit 8c123c14bbba4add148536b6d47a9226deda2f7a
>>> Author: Ulf Hansson <ulf.hansson@linaro.org>
>>> Date: Thu Apr 26 10:53:06 2018 +0200
>>>
>>> driver core: Respect all error codes from dev_pm_domain_attach()
>>>
>>> The limitation of being able to check only for -EPROBE_DEFER from
>>> dev_pm_domain_attach() has been removed. Hence let's respect all error
>>> codes and bail out accordingly.
>>>
>>> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
>>> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
>>> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
>> The DRM driver creates the HDMI codec but its registration fails, due
>> to some missing clocks. The clock are missing because the exynos5-subcmu
>> driver probing fails.
>>
>> [ 0.678578] exynos5-subcmu: probe of GSC failed with error -17
>> [ 0.679250] exynos5-subcmu: probe of MFC failed with error -17
>> [ 0.679992] exynos5-subcmu: probe of DISP failed with error -17
>>
>> The exynos5-subcmu driver before registering platform device makes
>> of_genpd_add_device() call, so in platform_drv_probe() dev_pm_domain_attach()
>> call will fail, as dev->pm_domain is already set. Previously the error
>> was masked by code removed in the above commit and platform_drv_probe()
>> was could complete successfully.
> Thanks Sylwester!
>
> Ah, I missed these messages because I was looking at err dmesg level
> (and for some reason these are warn). Anyway do you have any thoughts
> how is it connected with missing Odroid XU3 sound card and max98090
> codec?

Odroid XU3 sound card driver is waiting for HDMI codec, which is being
created
by Exynos DRM HDMI driver, which was deferred by lack of clocks.

Best regards
--
Marek Szyprowski, PhD
Samsung R&D Institute Poland

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