From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (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 961A54AAC74 for ; Mon, 12 Oct 2026 16:22:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.168.131 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791822145; cv=none; b=EmsVvSvltIZyUZB/+wnISX4YXmBPCZEU9B80mO8rPKd64TiNgP5sPoi3tKDzJHhCrodZxsMJj/Nqtc9fHnQStRmV84AUznHsdGxEqWkKFrAygGSWt5566MCp9+NhMq+smltJiD79NMets0bldePEn4+1EtVOJiaGuUdFEjgqvAg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791822145; c=relaxed/simple; bh=lvpPyCGDTXesWaEY6g9dLJJ5DWtjGQaG0FaLxSfIFBY=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=s8yPKTjESSed+jhwQT27PQMzun4OKlb1HSTtRo4F5DEApGvip36UyUfw0+g7QWkU1Oxl8rBJO4kq8O39jqCRbGkmqgz0QRTeKMJO9SYDunFWBp62EU7Gg63KHfyNG8Dpy8vLRighMyI4vUt9YhfgjyZantEqkQTRAwde46vpskU= 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=nkuk9YEy; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b=axE60Enx; arc=none smtp.client-ip=205.220.168.131 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="nkuk9YEy"; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="axE60Enx" Received: from pps.filterd (m0279862.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 69CFf1Wk2175331 for ; Mon, 12 Oct 2026 16:22:24 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= qvUxIZZyJ0aPoPDhcOpJX9lew0Lb34qpElwWNDtrpkQ=; b=nkuk9YEy/9Yi7cv6 mw/3wyTTR+RFFBzhmK3iqDePsLd/II6Ak7uCrUnfSLQoge9768mUl0+gG2VEzuMk rHGyqsR2Hojgnb4knZ2QGSdxGyugYLj29KCF+2Tc6iKtTyc4nIwgosT59bDuyh9P UYC8JCvRkF8XrVSaS/FMgRl+StjIevll5GeGHTNBxT19UbBZLb/YaWKIFbDn5pk/ iI/EmldueRUF6ZClIE5c8Hpt7l9tTIdmXqyEEWtOOsCNuvxwvq8H4o4v9scs0s3V ugHjdsNXqf86eNIBUs7jMa1wcAzk1bLYnZ+a4phgil8rhdX9utSjty5Lgf2BFu4L DHFXnA== Received: from mail-vs1-f72.google.com (mail-vs1-f72.google.com [209.85.217.72]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4h8wbc1rja-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Mon, 12 Oct 2026 16:22:23 +0000 (GMT) Received: by mail-vs1-f72.google.com with SMTP id ada2fe7eead31-7c2b7a15cedso46079137.0 for ; Mon, 12 Oct 2026 09:22:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1791822143; x=1792426943; 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=qvUxIZZyJ0aPoPDhcOpJX9lew0Lb34qpElwWNDtrpkQ=; b=axE60EnxUpA5BkCLysTc4IvEYIyU0J1YwuZ4hEikPxbz+tgzvluDQ0Gohg57nFItDP ECiW+nvrYsWn85pw036yhwvhKwrxp4FSNVqk1HlZYWqR7woX97cS7znO7pOhrbiwuB5u Z6vqcfuQex9WgoVwcFRzyB6ArQXz1XPle4/dwEOoacfsiIuFKrmzaeWklBi5xrUvKfw/ c5lyNHTpm49+io6uzA91m6ntwozASYuHKrcNPTGz4oiYLD+CVDmr7M6kduBX8rR9/mYZ HAuXRO+aYmbf0Ec2EIePSVleHSSMFaCGVPjZlFsILZvnOtpkgdYlC3Bf9ai7KJ2k4xgd MHEA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1791822143; x=1792426943; 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=qvUxIZZyJ0aPoPDhcOpJX9lew0Lb34qpElwWNDtrpkQ=; b=JayrxAyQGQHLDAoxgiW40sweO2CVIFFYzEeHnzbogP/NvIGy+f+zcWNQ+CfqM2JudD r9gg8gl+reWYengXuLrm8KR1yjdrVQqfiuqzrPajWlx3fdtm+YADTrKGySAmLEGZN4HZ DC5sGgMp6g+L4s+iZK+8OQnu13KIrmZaQe+wHKeCX/5gaUQIa19/90IbT8T0fQb2rHu5 5OnHRtzo05OpV+uzmFhK8LBBWnI/A2oD5JwoUQz2O2r0vS7FAVEB3RSn0gPgJdLntpyk 7l1gRcymUfg/XgzR0x1JlB4BxkEPXh7uUv5IoOq9pmZT/ahB/MAPFE4AMMOu/toEz/Ah e0kw== X-Forwarded-Encrypted: i=1; AKwUvBzlVEG6vwnpAVl9xrCIYo6H1ongGl7mFmyi7TjdoX+5RfWdtn1aUBsLxL57g4EMN32wA3w2c7XsdP5trfk=@vger.kernel.org X-Gm-Message-State: AFq9FYKFc2fWwDHS3b7CmSeEEQhj4dJlVH9QL78kXz8SYRNow5WZcgMQ Ur8vheA5tLtam4KWzeb25umLUBgm//xcdbZBo7AUD2Rr7OIPDxeCKVSsgZNMl0brrL7rPR6RBTR wwqLZiXMoM40fRbUM7UhLJvBVi320vr+hhn2gCOGAdQNUxGq6rcVUCS9F6BpV3KoNx40= X-Gm-Gg: AYBFou3gvGQf4D/8evwisK6ZyFiuwvirCremagmO9Hw+1xp3BvyyqWWCSNI08qUlbFc kN4/YlVNMcJJrN1oU09Mg5lgN9VJqD4V1ld4m1+J/QRtOsHpPktbEzSMiZc1SlioTEWLHOyqME/ gSr1pNZc95AQOEJL32XeZYYNQeFnx71v+kYkayrUXgsUUDlhiHHdYggDQ3Lql1aMF4K7Ija/hmj bagMvA3ccarl07CBSwPjPfI867afJHuvTgs4lKd5C4zOWWFCCLm8O2XFmyhNe5DthtOS1VmSdMa xu033+vEqrK/NNbCAodM2Th5Lr7qAPSDtUoQjo5vWQgbRt7nffREguEeqoUxAy80j2lEJPnAD+Y X3JG6No14R6ANdU8LZqqTIw== X-Received: by 2002:a05:6123:4204:20b0:5ca:7731:d376 with SMTP id 71dfb90a1353d-5e91f5370f5mr2016011e0c.5.1791822142763; Mon, 12 Oct 2026 09:22:22 -0700 (PDT) X-Received: by 2002:a05:6123:4204:20b0:5ca:7731:d376 with SMTP id 71dfb90a1353d-5e91f5370f5mr2016003e0c.5.1791822142251; Mon, 12 Oct 2026 09:22:22 -0700 (PDT) Received: from [192.168.226.26] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c31a9ae46f0sm484257866b.79.2026.10.12.09.22.19 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 12 Oct 2026 09:22:21 -0700 (PDT) Message-ID: <0eb6bd2e-110c-4a6e-a073-9b2b6c93d086@oss.qualcomm.com> Date: Mon, 12 Oct 2026 18:22:18 +0200 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] arm64: dts: qcom: sdm630: Add interconnect paths to the BLSP I2C and SPI controllers To: fabricioakio@gmail.com, Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Abel Vesa , Alexey Minnekhanov , Dmitry Baryshkov , Martin Botka , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20261009-sdm630-blsp-paths-v1-1-6a86ba193e8e@gmail.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20261009-sdm630-blsp-paths-v1-1-6a86ba193e8e@gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Info: AW1haW4tMjYxMDEyMDA2NSBTYWx0ZWRfX3u5KPd9d33Uz jqoLAAhH6RR5m7tU3UgDj7tBSaoRP9cqEkYZ8JaxE7uUWTHEvXdVo4ch7qpOMbwszH1xjodmpUR D+0urd1O36Q1OYhE1jWHuOnIF049MgQ= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDEyMDA2NSBTYWx0ZWRfX94GbBDB4kL1W pcm6fMgfrip+5amBaxK1wpn1mlCZ6inHGDUxAqvabmk2paE+Rnros6id9zSClybJpHx72QLiKnu nmPIqp2jksqHB44MtiD3dFdOLZYvMwDmYPTLXLmhRcRSUfhJNaJtE9o7/3pz3/T19Ps8vSHfR7o hwqlvyyut7+B2BTTjnE7o1TE/O9NxiGdTmXBd8Yzx1CSyz87OZaOuao70ZXKuGMfXHpL+YqyQkf L8MQPXUBrrzL3EESVaFamrliXdXDGFtHvHpnIE2EckHEoIz3KNVSP52kQzWQcibl74MmvYnxU+3 Z/DgHXhjTAVOA5SWuxBUXK6szjGmatJ7QLWA7krFLGhYSQcPIXK1g0lMHCY5hq210CwAzTSJnNF sdNHkY9MKgQzH7Z5uCgFkRIar03Jpuva8+iEMVzF1a9VxEJfjYSS5u3KKNgy7lnWCUfRrDBYEei Ish4Mx1Dki2sPhyiSEg== X-Authority-Analysis: v=2.4 cv=C4p8WgP+ c=1 sm=1 tr=0 ts=6acd093f cx=c_pps a=DUEm7b3gzWu7BqY5nP7+9g==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_K5XuSEh1TEqbUxoQ0s3:22 a=pGLkceISAAAA:8 a=EUspDBNiAAAA:8 a=vvS0s_9CdDRdiUdw2gEA:9 a=QEXdDO2ut3YA:10 a=ZXulRonScM0A:10 a=-aSRE8QhW-JAV6biHavz:22 X-Proofpoint-ORIG-GUID: imdbUD-eQCZLM7m5buFTAc6zskK83XRv X-Proofpoint-GUID: imdbUD-eQCZLM7m5buFTAc6zskK83XRv 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=2026-10-12_05,2026-10-09_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 priorityscore=1501 spamscore=0 bulkscore=0 adultscore=0 malwarescore=0 suspectscore=0 lowpriorityscore=0 clxscore=1015 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610080000 definitions=main-2610120065 On 10/9/26 10:49 PM, Fabricio Akio via B4 Relay wrote: > From: Fabricio Akio > > The QUP I2C and SPI controllers move their data through the BLSP BAM > DMA engines, which reach DDR as the aggregation NoC masters BLSP_1 and > BLSP_2. No path is described for them, so nothing requests bandwidth for > those masters while a transfer runs. > > Describe the path from each controller's BLSP master to DDR, as the > vendor kernel votes it. On a Motorola Moto X4 (SDM630), with the > boot-time interconnect votes released and system-level sleep enabled, > an I2C transfer running as the SoC entered that sleep hung the SoC > without these paths; with them, 5,000 transfers ran through about 3,000 > sleep entries. > > Signed-off-by: Fabricio Akio > --- Reviewed-by: Konrad Dybcio Konrad