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From:   Krzysztof Kozlowski <krzk@kernel.org>
Date:   Fri, 31 May 2019 11:27:42 +0200
Message-ID: <CAJKOXPfREyt3P2H8bL9=6+EQ1S3Ja7Urkhy1x7sCHaaubMqV1Q@mail.gmail.com>
Subject: [BISECT] No audio after "ASoC: core: use component driver name as
 component name"
To:     Mark Brown <broonie@kernel.org>, Tzung-Bi Shih <tzungbi@google.com>
Cc:     Takashi Iwai <tiwai@suse.com>, Jaroslav Kysela <perex@perex.cz>,
        alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org,
        Liam Girdwood <lgirdwood@gmail.com>,
        "linux-samsung-soc@vger.kernel.org" 
        <linux-samsung-soc@vger.kernel.org>,
        Sylwester Nawrocki <s.nawrocki@samsung.com>
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Hi,

Bisect points to commit b19671d6caf1ac393681864d5d85dda9fa99a448
Author: Tzung-Bi Shih <tzungbi@google.com>
Date:   Wed May 29 14:22:14 2019 +0800
    ASoC: core: use component driver name as component name

as a reason of failure of missing Audio card on Odroid XU3 board
(ARMv7, Exynos5422,
max98090 codec). Full kernel log:
https://krzk.eu/#/builders/1/builds/3349/steps/14/logs/serial0

The problem might be in component name. The driver->name and
fmt_single_name(dev, &component->id) are:
snd_dmaengine_pcm != 3830000.i2s
snd_dmaengine_pcm != 3830000.i2s-sec
samsung-i2s != 3830000.i2s

This commit should not go in without fixing the users of old
behavior... I could adjust the platform names for primary and
secondary links... but now it looks like two components will have the
same name.

Best regards,
Krzysztof