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 89BA5392837 for ; Thu, 11 Jun 2026 09:10:56 +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=1781169058; cv=none; b=MRkdh/rgP7aEMXYO4+eiEgVnGol757lAabf5mxPKHIOxvoPwY3eHE604lAfU+TXS7Oi5H6m08A5ufL2RGYfqsEzHBmd1RTC+Soa3shmJAxDvQncrvE+SmqwSHUdA4JKE3GD04ktKRutO/5dsJI4O7gA5dlvR2IH9Cr/gY699qcQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781169058; c=relaxed/simple; bh=8m+5CG+b+WzYz8jVeXydTQJ4q8uUlvtHDf9bNzjklvQ=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=hkyCU+4h4a9AW4//rJgTfbxhRGlLAmaQfYGAXhpcOLdStCqn/sX1AQ7BWSz0S+RVgO5Rl9szH4atadAFhi/zRXMbyZD7FsCekh+jrFUuzV/Yi6B9iZmOJ/W1OYLDQPDsGHWcZSlmeVMF1Lcdmf+hPZneI5reejgR+I+o/JwOOtA= 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=WtMIXxt+; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b=KyuAGIrY; 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="WtMIXxt+"; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="KyuAGIrY" Received: from pps.filterd (m0279868.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 65B5GRph3712096 for ; Thu, 11 Jun 2026 09:10:55 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= SWDsntKAlbRqYQFJ9sixUy5ufYt7jtVIUopuYaPGvWA=; b=WtMIXxt+KVKYeuBx IwH/e9wuNi8f86Mk/3Ci6KG9gc/s2GV/WIMwMzMODlt6ZbHSd++JA7UL9THIan7H z9PKbCn1ysEorvYQbSI0ecyC0IjslICvDg95GIXB9JG9IuEzaBsfHS4+c3KNUgUF vMoO3zbgA0xfluKYTVphRU223hib41aVWo7PZgE9yjmTOYZIxgrOVzFWI6fJlO9p LRYUNZssvmMFSgsc9aPoadFMwqQ07vv6/1idryGZpZ8LxxNzqEFAkL2Qw4/X8OGw J7n0MqRHoDmUhyEENQwBxVt2V4BrP4b4ab4cR6VtC2CserEuZoMaaA9KkzWBDph9 wwmzdw== Received: from mail-qk1-f198.google.com (mail-qk1-f198.google.com [209.85.222.198]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4eqe6uamvp-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Thu, 11 Jun 2026 09:10:55 +0000 (GMT) Received: by mail-qk1-f198.google.com with SMTP id af79cd13be357-9156dc90fdaso189135585a.0 for ; Thu, 11 Jun 2026 02:10:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1781169055; x=1781773855; darn=vger.kernel.org; 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=SWDsntKAlbRqYQFJ9sixUy5ufYt7jtVIUopuYaPGvWA=; b=KyuAGIrYPq5ENcVb373Zte5M2diQGkpT0vW9jQ/QwCotNBq9649ZjhNKlUGgiSAibL gKnZgiFZdGqLp0fhXQbekQpEQFcaURDMuImrnhZcEHE2e19eFXHMpd9HXf53lJAjyCUc YC3kIMyAj30EnNlCqJg53lmVQvuznsxX7qQAPVgPS1Kh29ZqFDq81zxyiY05abDKyhlq cxaPrS8w2jsgRDDwnL31bO+ryaIvj/Kh4Di0lw9xA6k3SxDjydKqZGaYIuFyC0DDQa5M vZiH6QlMi2MPl7zA2q1xqCZGRaFfO0m3GZSPPCcXrtQqGaCV8b/DcJBRVFs0kr9/NWzm JJzQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1781169055; x=1781773855; h=content-transfer-encoding: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; bh=SWDsntKAlbRqYQFJ9sixUy5ufYt7jtVIUopuYaPGvWA=; b=GSXVcVcgGUhxBQO3jNWLP7nundcBDH1z9iclcxP3dJwU7KXIRE9pum6tE/IHY7pTcC Tf7g4cueDaN7uNS8Ezt7gOWLcfuszVuhsLbeQIr9sv5UxsoYWZ1fkxNjifQWJ/ynyeBq Nwq2BiGJFzqX0wcen/jvvW1u1/gb9yEulcFFfJu2nuXUZso5XFcaQUDYwvDM+fksacJh Is3S21Kp8wYPwiZgmwhbmhQA2kXhG27DWnsoAv4UEjLsNBSonwq3rIeMDFkXoWch+T+0 trissvrFCjLYJOUVTSoACofgbO6Pd78rBrqq2Xfi6tYQet8jmhz6BZzjXpZapP+NukWT j3fA== X-Forwarded-Encrypted: i=1; AFNElJ/6UfC/PrFgvunEZIrmq76dld9FuACbyyamCuEUJLnyH4XazDmsZ4gHu3l6fZ7fOmCOLCe3tQfVB6UPqqE=@vger.kernel.org X-Gm-Message-State: AOJu0Yx9PEdEZk0hNB8eLHhIfeiF++f83/3R5+QqqY+cnAzpfClv4Qn0 aKl6ect56lFSDDORiqStYPab5M7kZg1HPPEL4+UYIE9+CgxDnecj7cI2hV79GzZrGsEvRANhhy8 fm8+p5tuLwv81lLpF0P5+ACncifJ5ubv9GCiTdLMc/xI0uLoEfW6h3KRpPEatTfiAnhQ= X-Gm-Gg: Acq92OGJGsu7bmnBxiciaHAUHsrMZGp2N8wgBTWRSUN+be4pAMB9Umy672wJKCUuUch K5sd0kFYHUxWGkpQ1lCiFHhpWqG6TNSl9gcS7prLSZ1E/O4ykCFROvs+3Y7vqStlKBiTXNtk9C7 94JZ+HFOmSzoEzL05dd6tCNtJZCL6B7gbBDK1B+gF+yqD/uirHcoIKfJvLTk7r8c0k3NWN5xrER z0pceOyK8ZhU2vlBUm/v8sLc+CR5yE/w8KXky7S5ukWcdOrbEvTU81sIbMGY/KG/lr2GzJaci6o WCKZQITo6d7LYe0c4/OGrDnuqN2kTTshOb5XrTtHlSNqrRGn1JPebC2M6BBhG4BNL4hHMMRL4jJ 3+p7ef4BbwMuIYI4qKMR3Men5PKXMyJbXUDumefqvLrq6zw4VHD0UQEcP X-Received: by 2002:a05:620a:4553:b0:8f1:9e59:2208 with SMTP id af79cd13be357-9160acc6f24mr149934885a.4.1781169054943; Thu, 11 Jun 2026 02:10:54 -0700 (PDT) X-Received: by 2002:a05:620a:4553:b0:8f1:9e59:2208 with SMTP id af79cd13be357-9160acc6f24mr149931985a.4.1781169054368; Thu, 11 Jun 2026 02:10:54 -0700 (PDT) Received: from [192.168.120.170] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-bfcb668ddb4sm37364666b.57.2026.06.11.02.10.52 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 11 Jun 2026 02:10:53 -0700 (PDT) Message-ID: <61fea0fa-d7af-47f4-a3c7-21d881090008@oss.qualcomm.com> Date: Thu, 11 Jun 2026 11:10:51 +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: shikra: Add BAM-DMUX support To: Stephan Gerhold , Vishnu Santhosh Cc: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, bjorn.andersson@oss.qualcomm.com, chris.lew@oss.qualcomm.com References: <20260611-qcom-shikra-dts-bam-dmux-v1-1-43d0b43d41ef@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Info: AW1haW4tMjYwNjExMDA5MCBTYWx0ZWRfX6RmWwO1UfHi8 DuBYgbXTeQIee9kNosBdtyDQWqnBe9EyGPMx6RU2c8o4pVGrDBiguyUlUQqPkv5LLXaJqY7USv4 lBpVCZCgckBmjzWieHkbWZR87wpuYTc= X-Authority-Analysis: v=2.4 cv=atOCzyZV c=1 sm=1 tr=0 ts=6a2a7b9f cx=c_pps a=qKBjSQ1v91RyAK45QCPf5w==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=FelO9ux0wxsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=ZpdpYltYx_vBUK5n70dp:22 a=EUspDBNiAAAA:8 a=PsAYBRyc5tNDhGAdKQEA:9 a=QEXdDO2ut3YA:10 a=NFOGd7dJGGMPyQGDc5-O:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjExMDA5MCBTYWx0ZWRfX6h1M+6v9MKX9 P4KGDmvwZnWDvktMxVdpOZJtBHvNwNMuiUAZrlM7TNThkpwdHwyjaXXO1w89vBbdewRzBvJbGpX 9XTSPFvew6V1aEc85VQZEj5ttJE34RM9i8ocFjDwLBmYAZ7g+DTlAdkaEx/na9/nwwDcREXJBPA 1/VD7HdzuQYQHYL1on6gQE7d+1TXwa/GqshfPLcjwVnzpJP+jRJte1iaJVEvLKwcjgYgeqYnUlZ jNfC4xb04ri7ifCqYmOhixkEmc4EQa0UL2KnFyZ9OzNL0AxGcmrf74nboiB6yyV3pUVHzUa9dsB UAVFKx99Y0AwLjMU4rRq/5nLbmW6KVmMvQquSZF19X8us1GjpzPQXJk6v6dlA6tvYIFUIgpC1Uu iP6kfzTISG0Wts0A6ysPZg7DmFJmXCz4r/mcfdKZnBgotUzE6QTANM2VW14c43EY3wPji47TfXp o3az/rnoPmOqKREv4xQ== X-Proofpoint-GUID: aw06KQCOaywcC4Lr0aTJzJ4MLCjxi-Mp X-Proofpoint-ORIG-GUID: aw06KQCOaywcC4Lr0aTJzJ4MLCjxi-Mp X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-06-11_01,2026-06-09_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 impostorscore=0 bulkscore=0 clxscore=1015 spamscore=0 malwarescore=0 phishscore=0 priorityscore=1501 lowpriorityscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606040000 definitions=main-2606110090 On 6/11/26 10:55 AM, Stephan Gerhold wrote: > On Thu, Jun 11, 2026 at 02:11:59PM +0530, Vishnu Santhosh wrote: >> Add required nodes to enable the upstream BAM-DMUX WWAN driver on >> Qualcomm Shikra SoC. >> >> The SMSM (Shared Memory State Machine) node provides the power >> control signaling between the AP and modem for BAM-DMUX. The >> BAM DMA controller node describes the A2 modem BAM hardware as a >> standard DMA controller. The BAM-DMUX node references the DMA >> channels and the pc/pc-ack interrupt lines from the modem SMSM >> entry for power control signaling. >> >> Signed-off-by: Vishnu Santhosh > > I'm quite surprised to see this 15+ years(?) old hardware block being > brought back to a new SoC. Is Shikra not using IPA? That's correct. Konrad