From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2FC16459AF9 for ; Wed, 19 Aug 2026 11:23:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.180.131 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787138626; cv=none; b=hncvdC4qthhy6HDVqDv7Ews5LDZqjfbzyDYLjNPF3KaFjqkdf7S7fM95NmAgwi2WbdORk9ioYfDX6iLHQmm99tk4FY5TdfR8YeyUAwTAbA0fKvrN70tWLzzYDfstw0JMfRSLGplZFMrrCoa36XrxKPElwczV7GctDqfX1IPp0T0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787138626; c=relaxed/simple; bh=9jYq2QOUqVO0jptGzj/ZGiacKARCDAofE/opIhkiADA=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=Hs1o+sg3njTiCeQEjbAeRgC7JWrgLw83Pj8wsW8NX1I9PXEr5dS2lNjl8h2bYCpY2meGk2TvlJEDEFCMPrqoMSQw4KfAnB30vjFdQYXYGNt0Ov1t2IhZBoZ087A6gbu0JC0/XoSTB1wT+upeuCxz5dLDsGQAUukmnF6aQw03m+g= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com; spf=pass smtp.mailfrom=oss.qualcomm.com; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b=jCLK/Hbg; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b=XANhDWTY; arc=none smtp.client-ip=205.220.180.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b="jCLK/Hbg"; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="XANhDWTY" Received: from pps.filterd (m0279872.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 67JA8ER53754750 for ; Wed, 19 Aug 2026 11:23:44 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qualcomm.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= 9jYq2QOUqVO0jptGzj/ZGiacKARCDAofE/opIhkiADA=; b=jCLK/HbgkdosKVXY 8w0nQREHfGx7bIMDkPKncmyL8DkZVRNLfHr6gbGlXrlOAKjFVIDSLAmQHpUPm1di xe1TB4vuXxukQbZNvYArOLKV8GumWTeka2jfHu0WzTGvLZ0n+5Tbdvya5Qbz+2ww lDZ8GDaaP/Mu+VyZAM91TsdCofPTEq0kaHitF5yCfmIWawQ/gqBzb/ADk+QRzmmN TQ+UkLH71PepT8JU8mtyVFaeDmtx3xBZfabo6aSZmhgFddYRQXk7yqjWgxkdOkeQ Hv2E1lulc6I3saNizbILMQYxY+KqdMeBJ2X+OQYSDlWxvCgr0+UJSDDK2PdIipoY 923n0w== Received: from mail-pg1-f199.google.com (mail-pg1-f199.google.com [209.85.215.199]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4g4yffjua3-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Wed, 19 Aug 2026 11:23:43 +0000 (GMT) Received: by mail-pg1-f199.google.com with SMTP id 41be03b00d2f7-cb5cc1e139bso552697a12.3 for ; Wed, 19 Aug 2026 04:23:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1787138623; x=1787743423; darn=vger.kernel.org; h=content-transfer-encoding:content-type: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 :content-type; bh=9jYq2QOUqVO0jptGzj/ZGiacKARCDAofE/opIhkiADA=; b=XANhDWTY2URs3Py5hBaqUcKkSQGrtT6lPUzH/RB28a8gVjAwDb0HZtvhIUhHo+vyDf fvm3LR7aTibztL+EyhLrmfGJS77lSdK3x1suVm4CUDS4eTnsnFfAd3dyjwhj2W9SKvnc 74zTnyQoqrY1NiP3oYXW/R64KqK41FWx7xOB2aenxdqN65qUwe6AvWZJ0J33nx9NHJUi AQffys8W9oF7qrByTSuTEnVoauDW7X+nfhDqe87klRPxHm6xIbuXBRYY6lcVUkwGaSU7 O3d6w64WZOx8DTjqgYMBvGZZX3/a5U/iBdb8TcbwgmHVX7wgjMNdEfDyylv5yG2/MiHd rwdA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1787138623; x=1787743423; h=content-transfer-encoding:content-type:in-reply-to:from :content-language:references:cc:to:subject:user-agent:mime-version :date:message-id:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=9jYq2QOUqVO0jptGzj/ZGiacKARCDAofE/opIhkiADA=; b=o8oUXv6jLUiffRR6ANbSHFm1gjVVq1AqlJu+2pIOoPEn0M2zqgF2j921v+f3cy+eQe w9vKRn3qQ37TcLv7MLsJjL8PpPItctb9JDygbtSwIRg/xByFf72imf/3Kz21rXnvFB7B sq6LFVz3UXdZqryU0fqY3Y7hS44TGHX/OZJJAGq6DS9/RXlsh3peRnGIltp6tkS1qKA+ Jdkx8hOzElWURidQpXi/6lh6asjfPYPm/GSJeyu9xaUAUxgNcrXavJVuSrPJnO/J5eSj 89wb+QxBi6LSx5dwX56hDXwRocqhsbKspI5QdJFsz8uhb9teEuN2g3QoJv/zK0kpTWNO Mk7w== X-Forwarded-Encrypted: i=1; AHgh+RoczOyN/gjYeclwCbRFRGluohhTA57ncEPro0pPA0uvWhQuc/vbbfBs4SKsGEmFBSpMPbNjmLOJsl8x0rA=@vger.kernel.org X-Gm-Message-State: AOJu0YzdJZh5Tb+G3yJ7WO+oXVC/KNhtFARJ6BbGZOpgz2n9By66Y3C6 QuvgjYq7d68NY8uCsf4mQfXQnZB0TaDoQO21FRAnEwJvii4DbpS5EO+h0eV9s43OTD+REACKGRc d0P6K97CKCDo7dXJ0Aqr9kRhjVm6fhKN4mTOYSO+bTuXpTiQqKeNbPQ1uVYn0chm8jJo= X-Gm-Gg: AR+sD106x7fjt35X8P0wb/V/62+UgREJLsGOxg2Pb2M0HPudPfl+Vye7AGbBzpkM7jm ZRoa10dCacJSxUqWJ6SqIJnOIXdxbNONJZoSs/GR48bltLoZp28moWoXyPVp/BuWYmCbQ0Pk+rB kcAxUJYVN6La5+ynM5OPCCtx6fuHYQI3Ytx7Kc0WvYF13EhMpbmFmNsHCaWRbOJwXNlaR9a8WQU n7C2YiKfDr6602BgOkb0DvCeaqmRoFEGbwZgwqjX9vVqFPoXuys8MsLwpFdUlrb19eYeU+GTwd3 +Uoyj12njz/TLjmElzlVweBDTPoco43Oa9kKjOdcLysMcFTIeVPGvlfLxhge62oou3M66l2ebxn poJ2Hk9f5jPq6NLtcmrin2y9JPdhoKoM8gQ== X-Received: by 2002:a05:6a21:6e88:b0:3bf:a543:e7f5 with SMTP id adf61e73a8af0-3cd016b15bdmr8241838637.3.1787138622958; Wed, 19 Aug 2026 04:23:42 -0700 (PDT) X-Received: by 2002:a05:6a21:6e88:b0:3bf:a543:e7f5 with SMTP id adf61e73a8af0-3cd016b15bdmr8241752637.3.1787138622509; Wed, 19 Aug 2026 04:23:42 -0700 (PDT) Received: from [10.217.222.20] ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-327bf10d497sm10823348eec.14.2026.08.19.04.23.38 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 19 Aug 2026 04:23:42 -0700 (PDT) Message-ID: Date: Wed, 19 Aug 2026 16:53:36 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3] dt-bindings: remoteproc: qcom,shikra-pas: Allow bam-dmux subnode To: Krzysztof Kozlowski Cc: Bjorn Andersson , Mathieu Poirier , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Kumar Patro , Komal Bajaj , linux-arm-msm@vger.kernel.org, linux-remoteproc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Deepak Kumar Singh References: <20260813-shikra-pas-bam-dmux-binding-v3-1-167a3fb50d21@oss.qualcomm.com> <20260814-modest-rose-salmon-7bb60b@quoll> Content-Language: en-US From: Vishnu Santhosh In-Reply-To: <20260814-modest-rose-salmon-7bb60b@quoll> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Info: AW1haW4tMjYwODE5MDA4OCBTYWx0ZWRfXyFyniI5eLFAq 35K4famuNSwAj88DlT4bOpCVrhkkg1FcagbF/jBatWphn6FvUtORsZJAYdrWdwKJbo5CevuikFd QrfuyVpui7Px92N1SJxhyeXvubXLFW4= X-Authority-Analysis: v=2.4 cv=H5PrBeYi c=1 sm=1 tr=0 ts=6a859240 cx=c_pps a=Oh5Dbbf/trHjhBongsHeRQ==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yx91gb_oNiZeI1HMLzn7:22 a=VwQbUJbxAAAA:8 a=KKAkSRfTAAAA:8 a=xR3Y2up12dx3HEdxvAEA:9 a=QEXdDO2ut3YA:10 a=_Vgx9l1VpLgwpw_dHYaR:22 a=cvBusfyB2V15izCimMoJ:22 X-Proofpoint-ORIG-GUID: QlFfADB3Kzd1GYUVkFeKZX0Ba_vq0ido X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODE5MDA4OCBTYWx0ZWRfXwVegqc64bVh2 kLmBgwaQFApnWFgq0lEO1gv9EAzE3RZOJ6gb4bkgQvbVJvtjq0QOwUOq97D23n3GYCPBftxpvep tzirMS8Hfah1PJJIvhpTFAxchByGHomMekQRJ+o0Qr4aLnfDesLLb4D+LpBQ0iHBj8T8A8mMfxh Gu0NYddhQf0B7QyJkwGU8bN9mbefZsAcn1ftvKfbRK5GCvK9fGh3HriBU9pXec7u1j4g3GnbkxS KeYmVlz8RG41Y1oz9ZgITsFh0K00vZXknQn3lcuisISJ6lFSVrx6ucMJRxwQtY9BVsMkhjwaBZh t86z4qi1je26iJH5StMLkjYVdCyZdMvDev2txiJRfFuNQQ895y2KPhO5NAaVTcL1UH+hXUTGVS1 JxRwMCfUoLnX8L1g5e0JN1hTahh6TJhyoH0Qh/C8yw+PqTJ2MQ/olKaXrXQuE8btdCCpHvZ/vjH n6VH3EPzPAZE3iL1L9Q== X-Proofpoint-GUID: QlFfADB3Kzd1GYUVkFeKZX0Ba_vq0ido X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-19_03,2026-08-18_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 priorityscore=1501 bulkscore=0 impostorscore=0 adultscore=0 suspectscore=0 lowpriorityscore=0 phishscore=0 malwarescore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608190088 On 14-08-2026 02:35 pm, Krzysztof Kozlowski wrote: > On Thu, Aug 13, 2026 at 04:55:54PM +0530, Vishnu Santhosh wrote: >> Allow an optional bam-dmux subnode under qcom,shikra-mpss-pas by >> referencing qcom,bam-dmux.yaml. > I still miss the answer why. Last time you said in present tense that > this node exists there, which I objected. The answer to my objections is > to provide proper reason why you are adding this, why you are doing it. > Answer almost never is: repeat what the diff is doing. > > You change something in the bindings because something exists in the > hardware and it was missed in initial submission, and you explain the > impact of that "missing". > > Best regards, > Krzysztof Understood. The reason is not that there is already an in-tree DTS that fails validation today. Rather, it is driven by the intended Shikra MPSS topology. In the earlier Shikra BAM-DMUX DTS posting, the bam-dmux node was initially placed outside the modem remoteproc node. Based on review feedback from Stephan [1], it was requested that bam-dmux be moved under the modem remoteproc node instead. The rationale was that placing the bam-dmux node at the top level makes it impossible for userspace to associate it with a remoteproc instance (in this case, the modem). This binding change therefore exists to describe the intended Shikra MPSS child-node topology. The DTS user of this binding has not been merged yet. Its next revision is being held until a separate discussion regarding an XPU violation is concluded. Our intention is to get the required binding changes merged first so that the DT patch can be sent once those discussions are complete. Please let me know if adding the above context to the commit message is what you are expecting. [1] https://lore.kernel.org/all/airpBYZ2pRdNaE1v@linaro.org/ Thanks, Vishnu >