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From: Mark Brown <broonie@kernel.org>
To: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Cc: John Stultz <john.stultz@linaro.org>,
	Takashi Iwai <tiwai@suse.de>,
	Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Liam Girdwood <lgirdwood@gmail.com>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Amit Pundir <amit.pundir@linaro.org>,
	Vinod Koul <vkoul@kernel.org>
Subject: Re: [GIT PULL] sound updates for 5.9
Date: Mon, 10 Aug 2020 18:50:47 +0100	[thread overview]
Message-ID: <20200810175047.GH6438@sirena.org.uk> (raw)
In-Reply-To: <4f3ead7e-992e-edec-e7b4-31566fc5e583@linaro.org>

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On Mon, Aug 10, 2020 at 06:06:14PM +0100, Srinivas Kandagatla wrote:

> In q6routing case all the dapm widgets reuse reg field in
> snd_soc_dapm_widget to store offset information or routing table indexs or
> some DSP related id and so on... These are not real registers.

> I think the core is trying to read the state of these widgets during
> startup, Which will fail in qdsp6 case as we do not have any regmap or read
> callback associated with this ASoC component.

Yes, it will try to figure out the current state of things during
startup.

> Previously we never had chance to see these messages so we did not implement
> any dummy read callback.

So I guess this is another instance of the issues with other things,
just having an effect beyond the cosmetic this time :/

> Adding a dummy callback to q6routing and q6afe-dai ASoC component will fix
> this issue at-least in Qualcomm case!

Yes, that's going to be better for robustness regardless of changes in
the core - just pick a default state if the underlying thing is
undefined.

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  reply	other threads:[~2020-08-10 17:51 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-06 10:21 [GIT PULL] sound updates for 5.9 Takashi Iwai
2020-08-06 21:59 ` pr-tracker-bot
2020-08-08  0:23 ` John Stultz
2020-08-08  6:46   ` Takashi Iwai
2020-08-08  8:07     ` Takashi Iwai
2020-08-10 12:22       ` Mark Brown
2020-08-10 13:52         ` Takashi Iwai
2020-08-08 21:32     ` John Stultz
2020-08-10 17:06   ` Srinivas Kandagatla
2020-08-10 17:50     ` Mark Brown [this message]
2020-08-11  5:10     ` John Stultz

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