linux-kernel - Re: [PATCH 0/2] ASoC: sunxi: Add ADC support for A33

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Message-ID: <66e3f902-e24c-459a-56fb-2106d1f054b9@free-electrons.com>
Date:   Wed, 3 May 2017 16:02:54 +0200
From:   Mylene Josserand <mylene.josserand@...e-electrons.com>
To:     lgirdwood@...il.com, broonie@...nel.org, perex@...ex.cz,
        tiwai@...e.com, maxime.ripard@...e-electrons.com, wens@...e.org,
        robh+dt@...nel.org, mark.rutland@....com
Cc:     alsa-devel@...a-project.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH 0/2] ASoC: sunxi: Add ADC support for A33

Hello,

On 03/05/2017 15:56, Mylène Josserand wrote:
> Hello everyone,
>
> This is a first version of a serie to add ADC support
> for Sun8i-A33.
> Based on asoc/for-next branch, last commit:
> 20d5c84bef067b7e804a163e2abca16c47125bad.
>
> The first patch adds the support of ADC and microphones in the digital
> part (driver sun8i-codec).
> The second one adds the route between analog (sun8i-codec-analog) and
> digital (sun8i-codec) parts to have a functional ADC route on Sun8i-A33
> device tree.
>
> Tested on Allwinner R16 Parrot board with microphone 1 (external) and
> microphone 2 (headset).

I forgot to add in my cover-letter amixer commands used to test it:

amixer set 'AIF1 Data Digital ADC' cap
amixer set 'Mic1' cap
or
amixer set 'Mic2' cap

and, just in case, the commands to enable output/DAC:

amixer set 'Headphone' 50%
amixer set 'Headphone' on
amixer set 'DAC' on
amixer set 'AIF1 Slot 0 Digital DAC' on


> I am not sure about the bias handling so if you have any comments on it,
> do not hesitate.
>
> Thank you in advance!
>
> Best regards,
>
> Mylène Josserand (2):
>   ASoC: sun8i-codec: Add ADC support for a33
>   ARM: dts: sun8i: Add ADC routing
>
>  arch/arm/boot/dts/sun8i-a33.dtsi | 10 ++++-
>  sound/soc/sunxi/sun8i-codec.c    | 80 +++++++++++++++++++++++++++++++++++++++-
>  2 files changed, 87 insertions(+), 3 deletions(-)
>

Best regards,

-- 
Mylène Josserand, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com