linux-kernel - Re: omap4-droid4: voice call support was Re: [PATCHv5,5/5] ARM: dts: omap4-droid4: add soundcard

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Date:   Sat, 31 Mar 2018 00:31:52 +0200
From:   Pavel Machek <pavel@....cz>
To:     Tony Lindgren <tony@...mide.com>
Cc:     Sebastian Reichel <sebastian.reichel@...labora.co.uk>,
        Mark Brown <broonie@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Lee Jones <lee.jones@...aro.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, alsa-devel@...a-project.org,
        linux-omap@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel@...labora.com,
        Dan Williams <dcbw@...hat.com>
Subject: Re: omap4-droid4: voice call support was Re: [PATCHv5,5/5] ARM: dts:
 omap4-droid4: add soundcard

Hi!

> > Your override kills most settings from alsamixer. You can try to
> > just override CPCAP_REG_VAUDIOC, CPCAP_REG_CC and CPCAP_REG_CDI
> > and setup everything else with alsamixer.
> 
> OK I'll try to narrow it down and play with the mic settings
> tonight or over the weekend.

No, just the three+alsamixer will not work. You also need to

814: |= 400

824: |= 400 CPCAP_REG_RXCOA : CPCAP_BIT_PGA_CDC_EN
81c: |= 006 CPCAP_REG_RXOA : CPCAP_BIT_A2_LDSP_L_EN / CPCAP_BIT_A2_LDSP_R_EN

You can set those using sudo aplay -D plughw:CARD=Audio,DEV=1
/usr/share/sounds/alsa/Front_Left.wav ... but that will do bad stuff
to the rest of the bits.

You might find this useful:

 watch 'cat /sys/kernel/debug/regmap/spi0.0/registers | grep "0800\|0804\|0808\|0814\|0818\|081c\|0820\|0824\|0828"'

Good luck, I need some sleep,

									Pavel

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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