From: Matthias Reichl <hias@horus.com>
To: Mark Brown <broonie@kernel.org>
Cc: Jon Hunter <jonathanh@nvidia.com>,
alsa-devel@alsa-project.org,
Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>,
Liam Girdwood <lgirdwood@gmail.com>,
Marcel Ziswiler <marcel.ziswiler@toradex.com>,
Takashi Iwai <tiwai@suse.com>,
linux-kernel@vger.kernel.org,
Marcel Ziswiler <marcel@ziswiler.com>,
linux-tegra@vger.kernel.org
Subject: Re: [alsa-devel] [PATCH v1 3/3] ASoC: soc-core: fix platform name vs. of_node assignement
Date: Tue, 18 Dec 2018 18:40:40 +0100 [thread overview]
Message-ID: <20181218174040.k7u26vnnoplllnwb@camel2.lan> (raw)
In-Reply-To: <20181021112301.GC8554@sirena.org.uk>
Hi Mark,
On Sun, Oct 21, 2018 at 12:23:01PM +0100, Mark Brown wrote:
> On Fri, Oct 19, 2018 at 11:22:46AM +0100, Jon Hunter wrote:
>
> > Looking at snd_soc_init_platform(), it seems that the platform pointer
> > can be allocated by the machine driver and so if it is not allocated by
> > the core, then I don't think we should clear it here. Seems we need a
> > way to determine if this was allocated by the core.
>
> Indeed, this is a bit of a mess. We probably shouldn't be modifying the
> data that the drivers passed in, otherwise we get into trouble like
> this. That suggests that we should copy the data, probably all of it.
> I will try to have a proper look at this next week.
did you find the time to look into this?
The downstream Raspberry Pi kernel contains a bunch of machine drivers
that are implemented in a similar way as the tegra_sgtl5000 driver
(static card and dai link structs, dai_link->platform_of_node filled
in from device tree) which are breaking in 4.20 on deferred probing.
Switching these drivers to dynamically allocated dai link structs,
like 76836fd35492 "ASoC: omap-abe-twl6040: Fix missing audio card
caused by deferred probing" would be a possibility, but if there's
some solution on the horizon that doesn't require changes to the
driver code it'd be easier to wait for that.
so long,
Hias
> > Furthermore, it seems that it is possible that there is more than one
> > link that might be to be cleared.
>
> Yes, that's an issue as well.
> _______________________________________________
> Alsa-devel mailing list
> Alsa-devel@alsa-project.org
> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
next prev parent reply other threads:[~2018-12-18 17:47 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-18 11:18 [PATCH v1 0/3] ASoC: last minute fixes Marcel Ziswiler
2018-10-18 11:18 ` [PATCH v1 1/3] ASoC: tegra_sgtl5000: fix device_node refcounting Marcel Ziswiler
2018-10-18 11:18 ` [PATCH v1 2/3] ASoC: soc-core: fix trivial checkpatch issues Marcel Ziswiler
2018-10-19 12:26 ` Applied "ASoC: soc-core: fix trivial checkpatch issues" to the asoc tree Mark Brown
2018-10-19 12:34 ` Mark Brown
2018-10-18 11:18 ` [PATCH v1 3/3] ASoC: soc-core: fix platform name vs. of_node assignement Marcel Ziswiler
2018-10-19 10:22 ` Jon Hunter
2018-10-21 11:23 ` Mark Brown
2018-12-18 17:40 ` Matthias Reichl [this message]
2019-01-03 16:42 ` [alsa-devel] " Jon Hunter
2019-01-08 2:25 ` Kuninori Morimoto
2019-01-08 10:50 ` Jon Hunter
2019-01-08 12:03 ` Jon Hunter
2019-01-08 15:48 ` Jon Hunter
2019-01-08 16:09 ` Mark Brown
2019-01-09 1:51 ` Kuninori Morimoto
2019-01-09 11:03 ` Jon Hunter
2019-01-09 12:53 ` Mark Brown
2019-01-09 14:11 ` Jon Hunter
2019-01-09 14:14 ` Mark Brown
2019-01-10 1:16 ` Kuninori Morimoto
2019-01-10 3:46 ` Kuninori Morimoto
2019-01-10 10:56 ` Jon Hunter
2019-01-11 0:52 ` Kuninori Morimoto
2019-01-11 8:41 ` Jon Hunter
2019-01-11 8:51 ` Kuninori Morimoto
2019-01-11 9:15 ` Jon Hunter
2019-01-14 23:02 ` Mark Brown
2019-01-15 15:26 ` Jon Hunter
2019-01-15 18:07 ` Matthias Reichl
2019-01-08 15:33 ` Mark Brown
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