linux-kernel - Re: [PATCH v2 2/5] ASoC: dt-bindings: document WCD939x Audio Codec

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Message-ID: <95537d14-facc-4e27-937b-6650bc99ace0@linaro.org>
Date:   Fri, 1 Dec 2023 16:17:18 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Neil Armstrong <neil.armstrong@...aro.org>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Banajit Goswami <bgoswami@...cinc.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>
Cc:     linux-arm-msm@...r.kernel.org, alsa-devel@...a-project.org,
        linux-sound@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/5] ASoC: dt-bindings: document WCD939x Audio Codec

On 01/12/2023 16:08, Neil Armstrong wrote:
> Document the Qualcomm WCD9390/WCD9395 Audio Codec and the
> Soundwire devices than can be found on Qualcomm SM8650 based platforms.
> 
> The Qualcomm WCD9390/WCD9395 Audio Codec communicates
> with the host SoC over 2 Soundwire links to provide:
> - 4 ADC inputs for up to 5 Analog Microphones
> - 4 DMIC inputs for up to 8 Digital Microphones
> - 4 Microphone BIAS
> - Stereo Headphone output
> - Mono EAR output
> - MBHC engine for Headset Detection
> 
> The WCD9390/WCD9395 IC has separate I2C subsystem for USB-C
> DP Altmode/Audio Accessory mode Mux which is not documented
> here but requires port/endpoint graph and properties to handle
> Altmode/Audio Accessory switch and orientation.
> 
> Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

Best regards,
Krzysztof