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 412C839023A for ; Mon, 27 Apr 2026 13:14:37 +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=1777295678; cv=none; b=YzKeF3Vxd5iPdKgydt2MU5cNejSoZ7sUsXf3eeAaFjDwkp+TeBb7mJXNntR9b3bgeUglKVG/J5qVUeTt0mR8D6Jje0OWR3qs5qqrWVIbHVR7ewPIDNFzuw4txx7MBobj8oZYhtUno1iUrKu+OUi1i343grQ5RndElow7d9mK0uI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777295678; c=relaxed/simple; bh=vfSDJ6gtbN3z3lVkJVbWTfmhrpUp2ibnfXP5RLPWscU=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=FLCBGITBcR3lM7CShhunUs/9cOPRwAzUDcCTruEMrzGIgSewBglBpYD1vU5SeMe5Te0MY3PqR/pe8uUwzZhNjOk2q31e0MiICenEuZvkAM02lkGonYYjDuhuMFT05plqsZZEnbqCmcCHSpp0Yof7qHHn9l50tZO5zlCZyi2lRD4= 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=ocBGaHMS; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b=AoTV3oEb; 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="ocBGaHMS"; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="AoTV3oEb" Received: from pps.filterd (m0279865.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 63R8kLM93962022 for ; Mon, 27 Apr 2026 13:14:36 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= 6oTwfVDw7QNHQ4l4Eu3rLR/gbCz9lqfqUZ3HQYe/v6Y=; b=ocBGaHMS/3/QPLyg oEGnWfC5Vui0NY8YtJukeSHGWm0KRUnVp3x295q+rRZghnSznYG0larhcV1/9WBL phs1q9fhY3Clwg9rbpXXNnQSTGCc2hmzNUhTXtc2bwnJkTlR8zmrIngMSrieNMz3 L88M1/nRcwpF6UtIRKGMM0R3t1fwfXg1uNLmjviuoSqKh5A2F5k1aj/0DIALGEdY Dp7WpzraIj77ecGonTKp9/kZk5cGPuaJ00vWZ/4WSckWBrljPKsJUQikMlZG8hTF VlV/4N1/r7nZOQtqbnD9gR/EWNcRqkiJXOF+ANQnbzfthr3SGaUrYfSwsfGA+Rzp DqVklw== Received: from mail-ua1-f72.google.com (mail-ua1-f72.google.com [209.85.222.72]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4dt4k317rx-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Mon, 27 Apr 2026 13:14:36 +0000 (GMT) Received: by mail-ua1-f72.google.com with SMTP id a1e0cc1a2514c-95687296dbcso445563241.1 for ; Mon, 27 Apr 2026 06:14:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1777295675; x=1777900475; 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=6oTwfVDw7QNHQ4l4Eu3rLR/gbCz9lqfqUZ3HQYe/v6Y=; b=AoTV3oEbf8MizNPZ5ADTTVVVA7P8j0SoP9pngybI5B4GVwKgtoezx2UPvj6RaOf6E8 OvXbb/Rt8L4JmG/+LIPmdL+nphrOAGgdZT34wV9xbJBaYPDmN9UMqGH4cu6ps2gjqZ52 TVARYDD/ByteS2zM3uKNhZVPuj1156095faQw7faAlhmOcIEy2aC0lPXTBAUD/8Q9eBc R6ALgN4kVA9MxvqdPSOp/v5K0+abwOYCRz1QLfuQhP33y3R9RV+teZh2H7isLwTVGpzp Ra9808gJH8PNdWH+sHpzQPzwJ3M1MTBAYretJDkTv41che+ZocFKV6AhGbOV4GaJsyIV 1TMg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1777295675; x=1777900475; 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=6oTwfVDw7QNHQ4l4Eu3rLR/gbCz9lqfqUZ3HQYe/v6Y=; b=lcQ79abaEQhZCLXLBvAVQAOwPL6pVpg5MQBqkT6vbiImL3RsLfEf3Mrma0P9PtCtyF KGfjdcJ4FCaqf6uecBinvSMQaz9D/61hzbO/vP+ZfefPtvYk+kckqpYpYnj3+0tDTRBY JFOMrwChG35+oZEOFPgF/lK/GK0t9DhIylQcTY1z2p/DjN0rnDHKglRlQQ9HoAfY2Ab5 8YG5q1voj29+9I/wxd4MXBLz0+bWDsTyqRMA5GJqODGX3yfFvy1FTiz+XJz1rcK3hJbW FyE0Jd1cGApDO80MF9ZkQh0ChVkEEuPwlssYCnrt5Ln+iTyyIiF9IbFb4ABL80Zlso4W n+Ig== X-Forwarded-Encrypted: i=1; AFNElJ/qdGLl6beTi+T1KYCNkxkunfR7F2mTxPCt1zYz+0wc0rcTaNpwANg5d5JT9FZL+dFsiitRxrsRD4mzY/3S@vger.kernel.org X-Gm-Message-State: AOJu0Yxb4Qpb3JkaQQLaWnU8IAlMiCsORSBwIfOjONbvMJlbKpVO2oQQ dqkDJAHR+1KHQ4F8c8YGEQCi+YYCqPmT/8kSfcH+vCvxNt5rrhmZnq/i0LzyoRAUOlnNpQCMkY6 TJCxmfP3eIfFmWoAjDGPRloBw0No1tnwhuXwjk+O4WhYza93bgZ5omSnBqHAiognKgu/t X-Gm-Gg: AeBDietjXTzknHzaB1EQP64fGaCM27TOpoDyypTUcHoQm/Dw437I/9H0h76Ae6IgSge iYcZmOr8o1tquNlXBSwlMn9n+TuVhpP0CpEJxr0XJRB9t2WoarmdIJMGFpQuomdNkbVFhfecu1B SRYcQyNdSB50kiP3svCvy+YQ/5ZP9Kfdm9zVx7S4nshOdUYoUWe/jyTkt17M97j1iCyKW/YdhEQ 0dnHNs1BZU11Kl9UvnmNF6D1AVGaugHvuKVb60MUaxMgv0EVP07z80cjkFPOZPiZMwK0pSxyjUT V3NoT9Y48AOZ5w3I9DGOrFjInqHXz/Jiw1JFH/0xlRrCu3dLKzyxmFE/frCOeAgcVs034x7Z7nj 5QzjC/IXDcUV/rfeESA/TEOQDCoey3ZGYQf/SWy5jG4s0WGDEcLf4eqpcovImKu5jqTz0/OcqNP /frGHrBzQ38U2Uew== X-Received: by 2002:a05:6102:5c2:b0:612:13af:f5de with SMTP id ada2fe7eead31-616f6ef8614mr6569919137.3.1777295675208; Mon, 27 Apr 2026 06:14:35 -0700 (PDT) X-Received: by 2002:a05:6102:5c2:b0:612:13af:f5de with SMTP id ada2fe7eead31-616f6ef8614mr6569906137.3.1777295674654; Mon, 27 Apr 2026 06:14:34 -0700 (PDT) Received: from [192.168.119.254] (078088045245.garwolin.vectranet.pl. [78.88.45.245]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-672c4d69708sm7043728a12.28.2026.04.27.06.14.31 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 27 Apr 2026 06:14:33 -0700 (PDT) Message-ID: <0314b78c-cd96-473e-aad8-6977b47cf1f0@oss.qualcomm.com> Date: Mon, 27 Apr 2026 15:14:30 +0200 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 4/6] clk: qcom: gxclkctl: Remove GX/GMxC rail votes to align with IFPC To: Taniya Das , Bjorn Andersson , Michael Turquette , Stephen Boyd , Abel Vesa , Rob Clark , Sean Paul , Konrad Dybcio , Akhil P Oommen , Dmitry Baryshkov , Abhinav Kumar , Jessica Zhang , Marijn Suijten , David Airlie , Simona Vetter Cc: Ajit Pandey , Imran Shaik , Jagadeesh Kona , linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org References: <20260427-gfx-clk-fixes-v2-0-797e54b3d464@oss.qualcomm.com> <20260427-gfx-clk-fixes-v2-4-797e54b3d464@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260427-gfx-clk-fixes-v2-4-797e54b3d464@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDI3MDE0MCBTYWx0ZWRfX1bzgi0HCeLHe UHsnlZ1rNgMUnEww6+dMPKWAJlooaT/SV/DffLmMN2FUykFVWCmWH9j2omHP6103eKYswvbLzrO B85We2huxp26bRvG1yNeu1KtNy0Q+xMb7/dE+00+juHgeb7Vs4iTceqIEnoUiGIRw1l4MmU5V1v Bg49dvA9Mvs1NSNG3s21HcX4iQSWu7cwhF8jCl84Cc1cuf0Z8Dybn5iil7MAgbJNIiBl6Sn4OC5 vBsFwz01aBLUWkqenXc+nsVf7dRPO5y3a1HEwXaGcEVshULAfDYTQfRKuJSJmTosMa/+XfZZw1Z shIyKHKplQfaQmgkno9By1O1+BrbuJ6LfSsaO2xUkAl2wZ4LwpSOArIXDzkf6IDi5LCnMRj9Cqd 3vP7/PbC2i41erfXsPE3hVeGLM1uhpX9mBOmLP4dmOPHPoRQIDnZf3Ab4UGHFIiHvGe1qkvoj6L 1oEnXyqzVa9UM5npZiw== X-Authority-Analysis: v=2.4 cv=a7QAM0SF c=1 sm=1 tr=0 ts=69ef613c cx=c_pps a=ULNsgckmlI/WJG3HAyAuOQ==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=A5OVakUREuEA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=Um2Pa8k9VHT-vaBCBUpS:22 a=EUspDBNiAAAA:8 a=IGZpXzwkV2I0bIdW4VsA:9 a=QEXdDO2ut3YA:10 a=1WsBpfsz9X-RYQiigVTh:22 X-Proofpoint-GUID: x-c99NBNifseUDBy1GJ9EZky7jY5hpUA X-Proofpoint-ORIG-GUID: x-c99NBNifseUDBy1GJ9EZky7jY5hpUA X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-04-27_04,2026-04-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 malwarescore=0 spamscore=0 phishscore=0 impostorscore=0 lowpriorityscore=0 suspectscore=0 bulkscore=0 priorityscore=1501 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604200000 definitions=main-2604270140 On 4/27/26 8:38 AM, Taniya Das wrote: > The GX GDSC control is handled through a dedicated clock controller, > and the enable/disable sequencing depends on correct rail voting. > The driver votes for the GX/GMxC rails and CX GDSC before toggling > the GX GDSC. Currently, during GMU runtime PM resume, rails remain > enabled due to upstream votes propagated via RPM-enabled devlinks > and explicit pm_runtime votes on GX GDSC. > > This is not an expected behaviour of IFPC(Inter Frame Power Collapse) > requirements of GPU as GMU firmware is expected to control these rails, > except during the GPU/GMU recovery via the OS and that is where the GX > GDSC should be voting for the rails (GX/GMxC and CX GDSC) before > toggling the GX GDSC. > > Thus, disable runtime PM after successfully registering the clock > controller. > > Signed-off-by: Taniya Das > --- Reviewed-by: Konrad Dybcio Konrad