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[184.144.58.243]) by smtp.gmail.com with ESMTPSA id af79cd13be357-8cb2b1f8185sm758797185a.36.2026.02.13.19.38.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 Feb 2026 19:38:04 -0800 (PST) Date: Fri, 13 Feb 2026 22:38:41 -0500 From: Richard Acayan To: Konrad Dybcio Cc: Nickolay Goppen , Krzysztof Kozlowski , Dmitry Baryshkov , Srinivas Kandagatla , Liam Girdwood , Mark Brown , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jaroslav Kysela , Takashi Iwai , Greg Kroah-Hartman , Wesley Cheng , Johan Hovold , Konrad Dybcio , linux-arm-msm@vger.kernel.org, linux-sound@vger.kernel.org, devicetree@vger.kernel.org Subject: Re: [PATCH 01/10] ASoC: dt-bindings: qcom,sm8250: add compatible for sdm660-internal Message-ID: References: <20260211020302.2674-1-mailingradian@gmail.com> <20260211020302.2674-2-mailingradian@gmail.com> <20260211-skilled-transparent-moth-fac10f@quoll> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Thu, Feb 12, 2026 at 10:34:27AM +0100, Konrad Dybcio wrote: > On 2/11/26 10:55 PM, Nickolay Goppen wrote: > > > > 11.02.2026 09:51, Krzysztof Kozlowski wrote: > >> On Wed, Feb 11, 2026 at 04:11:24AM +0200, Dmitry Baryshkov wrote: > >>> On Tue, Feb 10, 2026 at 09:02:53PM -0500, Richard Acayan wrote: > >>>> From: Nickolay Goppen > >>>> > >>>> Add compatibles for sdm660-internal based soundcards. > >>> Why is it called "internal"? > >> Yeah... I am pretty sure there is no such sound card. You cannot have > >> sound card internal to the soc, because you need the external components > >> like codecs. > > > > It comes mainly from downstream driver name [1]. > > > > Downstream also mentions it as int_codec [2]. > > > > There's also an sdm660-external sndcard [3]. > > It seems like "external" means "coupled with WCD934x+WSA881x" and "internal" > means "coupled with (digital cdc on SoC and analog on PMIC)-over-intI2S plus > optionally WSA881x". Interesting you left out WCD9335 (codename tasha), is it never used in production on SDM660? If it is used, the sound card might need to provide different configuration (e.g. channel map) based on the codec, or we might at least need a separate sound card driver for SDM660 with the tasha codec. If not, a single SoC sound card driver can provide codec configuration based on the port without checking the codec. > I also notice some details about a WCN slimbus channel (bt and FM radio?) > in the internal one. I also notice BTFM in the external one, on SLIMBUS_7 and SLIMBUS_8. They don't conflict with tasha or tavil, on the other slimbus ports.