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 B310E3AA4E7 for ; Tue, 7 Apr 2026 10:56:57 +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=1775559419; cv=none; b=RZcWQEgCjhzjFELhpWnx3KhJxGVnqrEtx8MyFps0CUBENIUhLcJZrTZowKnTn2TQyW+kVcPPFG+xzL/PbgNYH1mjHXcRSbhbXraAMl008ZPDob/5kxrtdeT1T/cAq5eZY7JPeEWsq+hY3F8lq1hfz58VuU6zr4GWpUmlRBRUW2U= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775559419; c=relaxed/simple; bh=5FZFpwbsvZkfWCGIHX89iA1PbcaMgbBVSQDDJ5l/Glg=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=HKB95hm/qyV6VIAKZAzP4v1KzVnJJqCHF6H2vvrrRiKfbkOBd65K9LgQNlSrIQAKABzMBbakk1PR7+yNQEU3xJd6J3vyzvf0shs5gVvUTBsblRIr5qNM06QJlADgeZn05cTYTjC38yaaHG82t3ItfTQ10IxnEpP12ZdGUb+uLOo= 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=nRY18Sgd; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b=ACHvREEB; 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="nRY18Sgd"; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="ACHvREEB" Received: from pps.filterd (m0279863.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 6376ZLGT1584355 for ; Tue, 7 Apr 2026 10:56:57 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= 6o+78GtA5SeBZnyBVOyCgJsy+RDbc81lZyqFwDAmIGg=; b=nRY18SgdId3HLTAp 6dfTnPPIA8vS9qd20lg0qPf0MoGEqTj3EBuvAzrI4XnBYz0XjnG2eR1sV1FIwc2Y shE30s/qdRQDr53UN75hIpWzjRYQKtTgK14NwrLj5ZwdWOX6LnEQqGOb6Q30rpzB qlplYezgSZ/EmrPoTNw94a7NSeLydHn0FhjezIpokQQEjtUiLVo9xv1v3PRVUG2i izA4KUUVswDIQgQa1EbQ7nhf5yD1wN7lemQ0Vq85kwxnXCH9QrbfL21k41zqadn4 uYD8jjqQoWPZDnCCWLBqI/BoYfO6o0Y1b0jZiU7jVBaURJOSIfWkGT35xeqz6wUs eTra3A== Received: from mail-qt1-f200.google.com (mail-qt1-f200.google.com [209.85.160.200]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4dcmr9tcrg-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Tue, 07 Apr 2026 10:56:57 +0000 (GMT) Received: by mail-qt1-f200.google.com with SMTP id d75a77b69052e-50d87632952so7506801cf.2 for ; Tue, 07 Apr 2026 03:56:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1775559416; x=1776164216; 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=6o+78GtA5SeBZnyBVOyCgJsy+RDbc81lZyqFwDAmIGg=; b=ACHvREEB21QnsDeIG09x5g2+yLkmsIawdzxmgTfrNFwt+awlypJmhkA78hVXpKe9Y4 o7RwwuyjUHsexmRATMf824RanNbb4Qi5As+jTpfPimKi6BgiDLBCAPKKWeUKb13nGh51 GF7s/QguyIoGEvLtFwiUr0sSjIslNoQ5E2zlulrby0IE/DsT9+vHNB6/4ZMTITIuum6j EuwOncqNswDzao/NvNdnSWGQxH4GxScyPzGj2cdhqR+ok2NUCot2p9AAhJCTobtqTwtI IJbqStNn4/hFg9ePkhAjMscRq5DaaawpSQ2+j3NcIvp1z6ctkvUkcj5XPNMovkH3WFGS N4Sw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1775559416; x=1776164216; 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=6o+78GtA5SeBZnyBVOyCgJsy+RDbc81lZyqFwDAmIGg=; b=JgtDFE49ruMBEfG0nIIWKhHk0hJxGdHUSi6lRg5AWeWY5pPjjRl05+k8Hmy9W51sF8 7Aj8Pjm+bHQYHV4dKDzywfbb+8hDrUXOAKCm89Wa5zBR6YsRjlQ378+5BPcAkukdIERn 9a/F6OnPyDkGgHSQMqKiwr/d+sVN/4oJ9VGeR8nOf+DleKWYcPEiOTrhFw46RE51b80u TL3ryam6DtWf1EdTuRzV6u2yGhxid0C0rbOMw5XbdfbIJtdQsoBQ6PlBftAdC3hUjm2l KjmOCML/cKzFnA7aed5smhuTY9cyp8GLi+saLz5K5cr4dfTtWFCl4tEyOfBJlrhIXe2m AtyA== X-Forwarded-Encrypted: i=1; AJvYcCWgN+Wfe8PQyjvjFV1XKnrMgeFz1on8Nld/Iy9miM//mQw0z/PlJLRqRpDR2Zq6wglAsKRohGslT5ZDODMC@vger.kernel.org X-Gm-Message-State: AOJu0Yz0LwCHCNtY+evLbhs9cyT9V+uqTSIHD0q9o18Peq1VxaejhJyK uDXlYkKqwdVluGbqtai5Z8mP53AYcLiz7xxIzShry37SHFymz7qKq06sMlk+BhWY7YR3Bw8PKoR r27QvJdh7xYMkGnR0Il2sC4RxdWdxKBkasCtJDDYdRc3/EG/NXGM6x2QOTKDTBci1fK3W X-Gm-Gg: AeBDietl4uwuVbQWKVeHGuCpqT2Egaw1BIBNkM66Fy9jkoRisYLq9izp7h5F4NR8BjH JrVNwSpgsuTiovqFpYhOKzELVqxLSmyqw1eR6xijEBAeimZ1jCfrA/lin+BoyareFG4rXlG33cw sttfUGERivqVSN3V34o/qqQT6xlQ9020zWvDjjxeYj1A//L5KBZkUAkP3iXoH0FKhT/NOdc/FVo xcidE+xT0RC0PXzyNrZ5yZ4EDHj8LVxTVqldgpRBPV1PGbH2zIS4kfR9/Yqt6KJvLN+qHR96Y1s Qg+0f+O5NfLsFakgNRNm9IfgAvOLoWp7BJh68UHNWZ+NqmaSeKFFzG5y+nUhusiHOu8nHp4Qj5l CyerlbgmPFgjAmWdXVJaEsdtsz0Zg64q2zlTN/u1oSe8g8n2ggZAxzSneptQFrzQBoq5gIdTQnT D3OrE= X-Received: by 2002:ac8:584c:0:b0:509:2b5a:808 with SMTP id d75a77b69052e-50d62af94f2mr177225691cf.2.1775559416035; Tue, 07 Apr 2026 03:56:56 -0700 (PDT) X-Received: by 2002:ac8:584c:0:b0:509:2b5a:808 with SMTP id d75a77b69052e-50d62af94f2mr177225461cf.2.1775559415594; Tue, 07 Apr 2026 03:56:55 -0700 (PDT) Received: from [192.168.119.254] (078088045245.garwolin.vectranet.pl. [78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b9c3cff1c3dsm540271466b.49.2026.04.07.03.56.51 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 07 Apr 2026 03:56:54 -0700 (PDT) Message-ID: <22afd2ae-c5ef-421c-9a9c-dc1073aaaff4@oss.qualcomm.com> Date: Tue, 7 Apr 2026 12:56:51 +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 2/6] clk: qcom: gxclkctl: Use custom disable callback for gx_gdsc 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, Pengyu Luo , Alexander Koskovich References: <20260407-gfx-clk-fixes-v1-0-4bb5583a5054@oss.qualcomm.com> <20260407-gfx-clk-fixes-v1-2-4bb5583a5054@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260407-gfx-clk-fixes-v1-2-4bb5583a5054@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=SMdykuvH c=1 sm=1 tr=0 ts=69d4e2f9 cx=c_pps a=JbAStetqSzwMeJznSMzCyw==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=A5OVakUREuEA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yOCtJkima9RkubShWh1s:22 a=VwQbUJbxAAAA:8 a=pGLkceISAAAA:8 a=EUspDBNiAAAA:8 a=4w9pqFYAhlswuzcMsVcA:9 a=QEXdDO2ut3YA:10 a=uxP6HrT_eTzRwkO_Te1X:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDA3MDEwMiBTYWx0ZWRfX4oXIGCwn5hQQ FsSpvQwRWvO4R+MxhSkTxXV3LCw6hidyCrAC/k4zU2LK3R1Zs0vqHcGti1IqCdxOpj56ffeecod kLil1so0Thm6fAaKzKIcdCZ/XBUQQRqui0kFdLS9kL3Dtf5MErTOyIV/zfwNU+9qkJNdB1jxnA0 9r2hKSiYeGj6OWAKCPOG8P1wPwcNi5Qih2YlsixsSlUdFLYKGttOSU2fsJjM1yjL9XjEwrtz9aE dHDkhlgKWUxaBBF2UcSwgXETFfr5SInWI+hRHwtQEB+nF0EfZgbMzdioejViYDPBh1XrRbJUFbv JAEXSuEMX8dAhQvsV94u0cb9adglPXEn1zrgxP7SKbCPj07syiZnDYhHz+7zKhW1JgXAXUwsBKf ywEME8Sjdn/1u1CmJBzs8r6uFEOqDCZyrKKWt1CH98wchr831MmE06eRxJjbHBwepGE574iG4wo 5qz91Sb7bhyqBDZkVqw== X-Proofpoint-GUID: 85sXTTS-rwP1GEmw601NYdV6FMS64LBE X-Proofpoint-ORIG-GUID: 85sXTTS-rwP1GEmw601NYdV6FMS64LBE 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=2026-04-07_02,2026-04-07_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 malwarescore=0 adultscore=0 lowpriorityscore=0 phishscore=0 impostorscore=0 priorityscore=1501 suspectscore=0 bulkscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604010000 definitions=main-2604070102 On 4/7/26 11:30 AM, Taniya Das wrote: > The GX GDSC represents a special GPU power domain that must not be > disabled during normal runtime PM flows. As per the GMU architecture, > GX GDSC should only be force-disabled during GMU/GPU recovery, where the > OS explicitly resets the GX power domain. > > However, when managed by the generic GDSC runtime PM path, GX GDSC may be > disabled during GMU runtime suspend, resulting in warnings such as: > > gx_clkctl_gx_gdsc status stuck at 'on' > > and failures in gdsc_toggle_logic() during rpm suspend. > > Use the newly added custom disable callback for gx_gdsc to ensure the > GDSC is toggled only in recovery scenarios, while preventing unintended > disable attempts during normal GMU runtime PM operations. > > Reported-by: Pengyu Luo > Closes: https://lore.kernel.org/all/CAH2e8h4Vp9fJYAUUbOmoHSKB25wakPBvmpwa62BTRqgRQbMWuw@mail.gmail.com/ > Reported-by: Alexander Koskovich > Closes: https://lore.kernel.org/all/gwVAH2mJerU4dBInw8pKmOs5aQK55Q7W6q_UQAlLFCsEgX6eyvSgXAWbNNMqAX4WmPlYCKUSMhfkr5Jry4Ps5EqnxYZqEEDd3Whwv7ZXGlc=@pm.me/ > Fixes: 5af11acae660 ("clk: qcom: Add a driver for SM8750 GPU clocks") > Signed-off-by: Taniya Das > --- Reviewed-by: Konrad Dybcio Konrad