From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3721EC4332F for ; Fri, 21 Oct 2022 12:54:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229908AbiJUMxy (ORCPT ); Fri, 21 Oct 2022 08:53:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35366 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229897AbiJUMxv (ORCPT ); Fri, 21 Oct 2022 08:53:51 -0400 Received: from mail-qk1-x732.google.com (mail-qk1-x732.google.com [IPv6:2607:f8b0:4864:20::732]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8BF8B26B6D6 for ; Fri, 21 Oct 2022 05:53:49 -0700 (PDT) Received: by mail-qk1-x732.google.com with SMTP id z30so1882991qkz.13 for ; Fri, 21 Oct 2022 05:53:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=/oSeaW5mIul8TIhIXdrPxIKt9VEUuWQxs7k14eD/1Ss=; b=sNK2bvtb0ckWlAzBW2zlR/iBOi7oAQTHNcdG3EQDc0gDVdJvQWJSne5nmtCTDeKv01 LEFxTjBtiZGtP76wki/rZRcTfgMtxgXQ2fIVgTZvHVZxhvQWXGHWV+LR/IHyhLuZburc 9rUKFqAC+xjzt721U30STNJfbv76tSnlTFjbzuaMOk9wEsDfYJNh3vHB6+BaUvOoG2p5 OtuPWxE7KbYy7QIy3Y7DKlKwULDiMVgLJTWdUMpntiC6Oih/Lnt7UoaAvTTT28BXeegI 6d+xkHbZ3qQGW87JffuysvRdnff8FaHQGRcmJjJ51D7lpVozc2ViYex1iqvmZ1ymuZWJ X8nQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=/oSeaW5mIul8TIhIXdrPxIKt9VEUuWQxs7k14eD/1Ss=; b=8ITrXQoJ3oQiaCdtzYUjHAhSckXupuRPZpqaN5h/hAQIiZA8Z2lPyymEaFVFwnlQV0 E+EavcFfcXOPdc18zzWNOYxt77p3gx5LoBplpdpvU5u76yBuiD0vdBduAQ6v+V+wzKmY tk60jN1db5S86hhbsjDAVwCoGlVaeF3cFTWp9O5zXQ/mgfxJVgIAfjMnzmh8ETYv7qiu GuBguB76BAK7YjG82Ic/xRsjlksmQ9VWa0ak4P4efcw1Ty7Dk8FSHzt3Qp6DIiLdj5cP ZOq0voVBNMu5e7RVdxdaKF37xbeY+i1P++x3X/XGsfwE/93uU2n1pAd8BVcZC8temNLC GL8A== X-Gm-Message-State: ACrzQf1Yy/Ocn4NVzIgyY1660hB0JqHEB7rsN1KYXbIhQRw3kKXcd88B mhJ0wfG9IngPe1DCqKcmBxEblg== X-Google-Smtp-Source: AMsMyM6L4xxVRWdbLocFykTdac6DlxEUJbXwJLGOhwqvAy4RhLV8T3Niy3e9l/kTxGIuF9J8/g+4jQ== X-Received: by 2002:a05:620a:2487:b0:6ee:74a7:934b with SMTP id i7-20020a05620a248700b006ee74a7934bmr14077470qkn.625.1666356828594; Fri, 21 Oct 2022 05:53:48 -0700 (PDT) Received: from [192.168.10.124] (pool-72-83-177-149.washdc.east.verizon.net. [72.83.177.149]) by smtp.gmail.com with ESMTPSA id w27-20020a05620a0e9b00b006cdd0939ffbsm9345492qkm.86.2022.10.21.05.53.46 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 21 Oct 2022 05:53:47 -0700 (PDT) Message-ID: <89340edb-2451-e648-e2e6-94c8f2410084@linaro.org> Date: Fri, 21 Oct 2022 08:53:45 -0400 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.4.0 Subject: Re: [PATCH 6/6] arm64: dts: fsd: Add sound card node for Tesla FSD To: Padmanabhan Rajanbabu , 'Alim Akhtar' , lgirdwood@gmail.com, broonie@kernel.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, s.nawrocki@samsung.com, perex@perex.cz, tiwai@suse.com, pankaj.dubey@samsung.com, rcsekar@samsung.com, aswani.reddy@samsung.com Cc: alsa-devel@alsa-project.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org References: <20221014102151.108539-1-p.rajanbabu@samsung.com> <20221014102151.108539-7-p.rajanbabu@samsung.com> <00c301d8dfd0$f55ca230$e015e690$@samsung.com> <04aa01d8e524$d253f2d0$76fbd870$@samsung.com> Content-Language: en-US From: Krzysztof Kozlowski In-Reply-To: <04aa01d8e524$d253f2d0$76fbd870$@samsung.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 21/10/2022 04:12, Padmanabhan Rajanbabu wrote: > > >> -----Original Message----- >> From: Alim Akhtar [mailto:alim.akhtar@samsung.com] >> Sent: 14 October 2022 06:59 PM >> To: 'Padmanabhan Rajanbabu' ; >> lgirdwood@gmail.com; broonie@kernel.org; robh+dt@kernel.org; >> krzysztof.kozlowski+dt@linaro.org; s.nawrocki@samsung.com; >> perex@perex.cz; tiwai@suse.com; pankaj.dubey@samsung.com; >> rcsekar@samsung.com; aswani.reddy@samsung.com >> Cc: alsa-devel@alsa-project.org; devicetree@vger.kernel.org; linux- >> kernel@vger.kernel.org; linux-samsung-soc@vger.kernel.org >> Subject: RE: [PATCH 6/6] arm64: dts: fsd: Add sound card node for Tesla FSD >> >> >> >>> -----Original Message----- >>> From: Padmanabhan Rajanbabu [mailto:p.rajanbabu@samsung.com] >>> Sent: Friday, October 14, 2022 3:52 PM >>> To: lgirdwood@gmail.com; broonie@kernel.org; robh+dt@kernel.org; >>> krzysztof.kozlowski+dt@linaro.org; s.nawrocki@samsung.com; >>> perex@perex.cz; tiwai@suse.com; pankaj.dubey@samsung.com; >>> alim.akhtar@samsung.com; rcsekar@samsung.com; >> aswani.reddy@samsung.com >>> Cc: alsa-devel@alsa-project.org; devicetree@vger.kernel.org; linux- >>> kernel@vger.kernel.org; linux-samsung-soc@vger.kernel.org; >> Padmanabhan >>> Rajanbabu >>> Subject: [PATCH 6/6] arm64: dts: fsd: Add sound card node for Tesla FSD >>> >>> Add device tree node support for sound card on Tesla FSD board >>> >>> Signed-off-by: Padmanabhan Rajanbabu >>> --- >>> arch/arm64/boot/dts/tesla/fsd-evb.dts | 49 >>> +++++++++++++++++++++++++++ >>> arch/arm64/boot/dts/tesla/fsd.dtsi | 3 ++ >>> 2 files changed, 52 insertions(+) >>> >>> diff --git a/arch/arm64/boot/dts/tesla/fsd-evb.dts >>> b/arch/arm64/boot/dts/tesla/fsd-evb.dts >>> index c0a4509499ab..ecaa3c2e3045 100644 >>> --- a/arch/arm64/boot/dts/tesla/fsd-evb.dts >>> +++ b/arch/arm64/boot/dts/tesla/fsd-evb.dts >>> @@ -49,3 +49,52 @@ >>> &tdm_1 { >>> status = "okay"; >>> }; >>> + >>> +&sound { >>> + compatible = "tesla,fsd-sndcard"; >>> + status = "okay"; >>> + model = "fsd-i2s"; >>> + widgets = >>> + "Speaker", "MAIN SPK", >>> + "Microphone", "MAIN MIC"; >>> + >>> + primary-dai-link-0 { >>> + link-name = "fsd-primary-0"; >>> + dai-format = "i2s"; >>> + tesla,bitclock-master = <&tdm_0>; >>> + tesla,frame-master = <&tdm_0>; >>> + cpu { >>> + sound-dai = <&tdm_0 0>; >>> + }; >>> + }; >>> + >>> + secondary-dai-link-0 { >>> + link-name = "fsd-secondary-0"; >>> + dai-format = "i2s"; >>> + tesla,bitclock-master = <&tdm_0>; >>> + tesla,frame-master = <&tdm_0>; >>> + cpu { >>> + sound-dai = <&tdm_0 1>; >>> + }; >>> + }; >>> + >>> + primary-dai-link-1 { >>> + link-name = "fsd-primary-1"; >>> + dai-format = "i2s"; >>> + tesla,bitclock-master = <&tdm_1>; >>> + tesla,frame-master = <&tdm_1>; >>> + cpu { >>> + sound-dai = <&tdm_1 0>; >>> + }; >>> + }; >>> + >>> + secondary-dai-link-1 { >>> + link-name = "fsd-secondary-1"; >>> + dai-format = "i2s"; >>> + tesla,bitclock-master = <&tdm_1>; >>> + tesla,frame-master = <&tdm_1>; >>> + cpu { >>> + sound-dai = <&tdm_1 1>; >>> + }; >>> + }; >>> +}; >>> diff --git a/arch/arm64/boot/dts/tesla/fsd.dtsi >>> b/arch/arm64/boot/dts/tesla/fsd.dtsi >>> index 5decad45a1b6..fc8931f830a7 100644 >>> --- a/arch/arm64/boot/dts/tesla/fsd.dtsi >>> +++ b/arch/arm64/boot/dts/tesla/fsd.dtsi >>> @@ -847,6 +847,9 @@ >>> status = "disabled"; >>> }; >>> >>> + sound: sound { >>> + }; >>> + >> Why to have an empty node in dtsi? > This is required as every node we use in dts should have the same declared in I see no reason why this is required. > dtsi. Sound nodes in most of the platform is only declared (dummy node) in > dtsi and defining only in dts. Thus we are following the same. Can you point me to Samsung platform doing this? Keep the code consistent with Exynos style. Best regards, Krzysztof From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 90AD9C433FE for ; Fri, 21 Oct 2022 12:54:49 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 421AF8618; Fri, 21 Oct 2022 14:53:57 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 421AF8618 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1666356887; bh=4zia6d/9C/r0oMjbOLxT0k71pWLOutevN7Vh/LoS8WA=; h=Date:Subject:To:References:From:In-Reply-To:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=UaSlTqc9SjJGSPYUnqFT65BKk3axusIe+FCQPLI3loPT8hzmiE8T5HLVAfEGgKLdc +VK7eEmeoWH6jwZuVHXUad+/qHBlOSk/rfc76YKNiCa7+oik3YYxqHUr7dl0G9t84N hps3yhg8Xk013FVWiXzbDWG1acGw4ZxGbiEpCR+0= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id E474EF80118; Fri, 21 Oct 2022 14:53:56 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 308A5F800B5; Fri, 21 Oct 2022 14:53:56 +0200 (CEST) Received: from mail-qk1-x733.google.com (mail-qk1-x733.google.com [IPv6:2607:f8b0:4864:20::733]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 91A34F800B5 for ; Fri, 21 Oct 2022 14:53:50 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 91A34F800B5 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="sNK2bvtb" Received: by mail-qk1-x733.google.com with SMTP id j21so1896786qkk.9 for ; Fri, 21 Oct 2022 05:53:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=/oSeaW5mIul8TIhIXdrPxIKt9VEUuWQxs7k14eD/1Ss=; b=sNK2bvtb0ckWlAzBW2zlR/iBOi7oAQTHNcdG3EQDc0gDVdJvQWJSne5nmtCTDeKv01 LEFxTjBtiZGtP76wki/rZRcTfgMtxgXQ2fIVgTZvHVZxhvQWXGHWV+LR/IHyhLuZburc 9rUKFqAC+xjzt721U30STNJfbv76tSnlTFjbzuaMOk9wEsDfYJNh3vHB6+BaUvOoG2p5 OtuPWxE7KbYy7QIy3Y7DKlKwULDiMVgLJTWdUMpntiC6Oih/Lnt7UoaAvTTT28BXeegI 6d+xkHbZ3qQGW87JffuysvRdnff8FaHQGRcmJjJ51D7lpVozc2ViYex1iqvmZ1ymuZWJ X8nQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=/oSeaW5mIul8TIhIXdrPxIKt9VEUuWQxs7k14eD/1Ss=; b=7TB4BP3WpLFmcl7p9ElEcQH4HDNJ3ided3g3l6EJ7yyTUB/emYFOGt2BG4koJUG1MG wTnd3LjOQuwDUEhW8wfSYK266eTtvE+5kcs9BXBinuwoPy2OOE//7msDQaFRUZAI5o7N yxcivxtL0/IXKlf7An4PmWbEHGSWgP/GhJTbJN1Rw5TPBUTzI0eyE5uokbIWrIDPDuSA yDGsErc+Q5ix1QRwrcNPnAXOXjhPT55iZe4Mqe3kT9teklwuNWnJ03jcdm0dpIgS2XPx NzSTsr9dta3ZeOPVsMIksYQupm1ovtc6DSpGX84BM98yaFKHFIcaKnrsHgIy7UOhOuTC wt2Q== X-Gm-Message-State: ACrzQf0QHIpN0z17LLCFsXjbra1c3DVP5lGwirG5aH+1pNITlIF4kWSy uSRWuSYRfkCVjLb24RrWKK00Tw== X-Google-Smtp-Source: AMsMyM6L4xxVRWdbLocFykTdac6DlxEUJbXwJLGOhwqvAy4RhLV8T3Niy3e9l/kTxGIuF9J8/g+4jQ== X-Received: by 2002:a05:620a:2487:b0:6ee:74a7:934b with SMTP id i7-20020a05620a248700b006ee74a7934bmr14077470qkn.625.1666356828594; Fri, 21 Oct 2022 05:53:48 -0700 (PDT) Received: from [192.168.10.124] (pool-72-83-177-149.washdc.east.verizon.net. [72.83.177.149]) by smtp.gmail.com with ESMTPSA id w27-20020a05620a0e9b00b006cdd0939ffbsm9345492qkm.86.2022.10.21.05.53.46 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 21 Oct 2022 05:53:47 -0700 (PDT) Message-ID: <89340edb-2451-e648-e2e6-94c8f2410084@linaro.org> Date: Fri, 21 Oct 2022 08:53:45 -0400 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.4.0 Subject: Re: [PATCH 6/6] arm64: dts: fsd: Add sound card node for Tesla FSD To: Padmanabhan Rajanbabu , 'Alim Akhtar' , lgirdwood@gmail.com, broonie@kernel.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, s.nawrocki@samsung.com, perex@perex.cz, tiwai@suse.com, pankaj.dubey@samsung.com, rcsekar@samsung.com, aswani.reddy@samsung.com References: <20221014102151.108539-1-p.rajanbabu@samsung.com> <20221014102151.108539-7-p.rajanbabu@samsung.com> <00c301d8dfd0$f55ca230$e015e690$@samsung.com> <04aa01d8e524$d253f2d0$76fbd870$@samsung.com> Content-Language: en-US From: Krzysztof Kozlowski In-Reply-To: <04aa01d8e524$d253f2d0$76fbd870$@samsung.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: devicetree@vger.kernel.org, alsa-devel@alsa-project.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" On 21/10/2022 04:12, Padmanabhan Rajanbabu wrote: > > >> -----Original Message----- >> From: Alim Akhtar [mailto:alim.akhtar@samsung.com] >> Sent: 14 October 2022 06:59 PM >> To: 'Padmanabhan Rajanbabu' ; >> lgirdwood@gmail.com; broonie@kernel.org; robh+dt@kernel.org; >> krzysztof.kozlowski+dt@linaro.org; s.nawrocki@samsung.com; >> perex@perex.cz; tiwai@suse.com; pankaj.dubey@samsung.com; >> rcsekar@samsung.com; aswani.reddy@samsung.com >> Cc: alsa-devel@alsa-project.org; devicetree@vger.kernel.org; linux- >> kernel@vger.kernel.org; linux-samsung-soc@vger.kernel.org >> Subject: RE: [PATCH 6/6] arm64: dts: fsd: Add sound card node for Tesla FSD >> >> >> >>> -----Original Message----- >>> From: Padmanabhan Rajanbabu [mailto:p.rajanbabu@samsung.com] >>> Sent: Friday, October 14, 2022 3:52 PM >>> To: lgirdwood@gmail.com; broonie@kernel.org; robh+dt@kernel.org; >>> krzysztof.kozlowski+dt@linaro.org; s.nawrocki@samsung.com; >>> perex@perex.cz; tiwai@suse.com; pankaj.dubey@samsung.com; >>> alim.akhtar@samsung.com; rcsekar@samsung.com; >> aswani.reddy@samsung.com >>> Cc: alsa-devel@alsa-project.org; devicetree@vger.kernel.org; linux- >>> kernel@vger.kernel.org; linux-samsung-soc@vger.kernel.org; >> Padmanabhan >>> Rajanbabu >>> Subject: [PATCH 6/6] arm64: dts: fsd: Add sound card node for Tesla FSD >>> >>> Add device tree node support for sound card on Tesla FSD board >>> >>> Signed-off-by: Padmanabhan Rajanbabu >>> --- >>> arch/arm64/boot/dts/tesla/fsd-evb.dts | 49 >>> +++++++++++++++++++++++++++ >>> arch/arm64/boot/dts/tesla/fsd.dtsi | 3 ++ >>> 2 files changed, 52 insertions(+) >>> >>> diff --git a/arch/arm64/boot/dts/tesla/fsd-evb.dts >>> b/arch/arm64/boot/dts/tesla/fsd-evb.dts >>> index c0a4509499ab..ecaa3c2e3045 100644 >>> --- a/arch/arm64/boot/dts/tesla/fsd-evb.dts >>> +++ b/arch/arm64/boot/dts/tesla/fsd-evb.dts >>> @@ -49,3 +49,52 @@ >>> &tdm_1 { >>> status = "okay"; >>> }; >>> + >>> +&sound { >>> + compatible = "tesla,fsd-sndcard"; >>> + status = "okay"; >>> + model = "fsd-i2s"; >>> + widgets = >>> + "Speaker", "MAIN SPK", >>> + "Microphone", "MAIN MIC"; >>> + >>> + primary-dai-link-0 { >>> + link-name = "fsd-primary-0"; >>> + dai-format = "i2s"; >>> + tesla,bitclock-master = <&tdm_0>; >>> + tesla,frame-master = <&tdm_0>; >>> + cpu { >>> + sound-dai = <&tdm_0 0>; >>> + }; >>> + }; >>> + >>> + secondary-dai-link-0 { >>> + link-name = "fsd-secondary-0"; >>> + dai-format = "i2s"; >>> + tesla,bitclock-master = <&tdm_0>; >>> + tesla,frame-master = <&tdm_0>; >>> + cpu { >>> + sound-dai = <&tdm_0 1>; >>> + }; >>> + }; >>> + >>> + primary-dai-link-1 { >>> + link-name = "fsd-primary-1"; >>> + dai-format = "i2s"; >>> + tesla,bitclock-master = <&tdm_1>; >>> + tesla,frame-master = <&tdm_1>; >>> + cpu { >>> + sound-dai = <&tdm_1 0>; >>> + }; >>> + }; >>> + >>> + secondary-dai-link-1 { >>> + link-name = "fsd-secondary-1"; >>> + dai-format = "i2s"; >>> + tesla,bitclock-master = <&tdm_1>; >>> + tesla,frame-master = <&tdm_1>; >>> + cpu { >>> + sound-dai = <&tdm_1 1>; >>> + }; >>> + }; >>> +}; >>> diff --git a/arch/arm64/boot/dts/tesla/fsd.dtsi >>> b/arch/arm64/boot/dts/tesla/fsd.dtsi >>> index 5decad45a1b6..fc8931f830a7 100644 >>> --- a/arch/arm64/boot/dts/tesla/fsd.dtsi >>> +++ b/arch/arm64/boot/dts/tesla/fsd.dtsi >>> @@ -847,6 +847,9 @@ >>> status = "disabled"; >>> }; >>> >>> + sound: sound { >>> + }; >>> + >> Why to have an empty node in dtsi? > This is required as every node we use in dts should have the same declared in I see no reason why this is required. > dtsi. Sound nodes in most of the platform is only declared (dummy node) in > dtsi and defining only in dts. Thus we are following the same. Can you point me to Samsung platform doing this? Keep the code consistent with Exynos style. Best regards, Krzysztof