[alsa-devel] Fwd: Help with sound on Cherry Trail laptop with ES8316 sound chip

[Sundar Nagarajan]

Hello,

I have (separate) issues with two different Cherry Trail laptops that
have the ES8316 chipset for sound.

I already posted the following issues on Pierre Bossart's Intel UCM
repository(https://github.com/plbossart/UCM):

Issue 42: RDP Thinbook 1430 laptop (ES8316): Can't select between
built-in speakers and headphone output
(https://github.com/plbossart/UCM/issues/42)

Pierre's input was as follows:
    The UCM file you are using gives the clue already:
    #Codec IC has only 1 analog out, switching SPK/HP is done externally,
    #probably by means of some analog switch controlled by gpio
    There is nothing we can do at the UCM level, this has to be
handled at a lower level (i.e. the kernel)

In addition, on a different laptop, I have a different problem with
the ES3816 chipset.

Issue 41: No sound on speakers on Chuwi Hi12 laptop - headphone sound
works (es8316) (https://github.com/plbossart/UCM/issues/41)

I reached out to Mark Brown, Daniel Drake and David Yang who were
listed on the kernel.org commit for the ytcht_es8316.c driver
(https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/sound/soc/intel/boards/bytcht_es8316.c?h=next-20180718&id=a03bdaa565cbf23fa86697727a7d2bf1465e7a03)
and Mark suggested reaching out to you folks.

What is the right place for me to post my issues to get your ideas and help?
I have access to these machines, and I can compile kernels and perform
testing, collect logs etc.

Regards,
Sundar


---------- Forwarded message ---------
From: Mark Brown <broonie at kernel.org>
Date: Thu, Sep 27, 2018 at 3:14 PM
Subject: Re: Help with sound on Cherry Trail laptop with ES8316 sound chip
To: Sundar Nagarajan <sun.nagarajan at gmail.com>
Cc: Daniel Drake <drake at endlessm.com>, David Yang <yangxiaohua at everest-semi.com>


On Wed, Sep 26, 2018 at 12:53:44PM -0700, Sundar Nagarajan wrote:
> )I found your email from the kernel.org commit log for the
> bytcht_es8316.c driver
> (https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/sound/soc/intel/boards/bytcht_es8316.c?h=next-20180718&id=a03bdaa565cbf23fa86697727a7d2bf1465e7a03.

> I have (separate) issues with two different Cherry Trail laptops that
> have the ES8316 chipset. I posted the following issues on Pierre
> Bossart's Intel UCM repository(https://github.com/plbossart/UCM):

He's on sabbatical at the minute FWIW.

> What is the right place for me to post my issues to get your ideas and help?

You'd be best contacting the Intel maintainers about x86 specific
issues:

INTEL ASoC DRIVERS
M:      Pierre-Louis Bossart <pierre-louis.bossart at linux.intel.com>
M:      Liam Girdwood <liam.r.girdwood at linux.intel.com>
M:      Jie Yang <yang.jie at linux.intel.com>
L:      alsa-devel at alsa-project.org (moderated for non-subscribers)
S:      Supported
F:      sound/soc/intel/

That includes Pierre but also a few other people, hopefully at least one
of them will be able to help or point you to someone who can.  You
should also copy in the alsa-devel list (alsa-devel at alsa-project.org) in
case someone else can help and so people can google the discussion
later, though that'll mean your e-mail address ends up in the archives
so you might not be happy with that.
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