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 75041241695 for ; Wed, 22 Jul 2026 13:15:47 +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=1784726150; cv=none; b=ONAtB/xkDc3Cx4jY1BHsbADxTxMKG0yGlYEgXojvIf9SyGw2wkbRQeo/rYBxFuA0bN+YqgKBYRj9cqmb08jcin1sQujTTR0M5/V1bqz9DuLSpE05WCimg8cjIi6uYcJNdQqGN6YQ1yq9djAVME5G+bDRBmvrlBsiC/OufoiJ9Zk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784726150; c=relaxed/simple; bh=+Yvl8CUQVYUwowN48lsRM1N9M0OFq7pvUPzAgtaXviY=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=MXdQsiB1X4KorxabeqaVmT2qS9jrqYh5t0VXs0LebIInvKTFruNG5qrRuirGd00XXimtPPdTfvkYmi6HHup0AHr3PysCKREndrhioDMkV5TcYtaA3W1dmxT3XtAsKC3Wz980YsQFu4uJDEvhyyGnso5Z+sYHrXG5L9YEYPDh/k4= 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=iB3X2hpV; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b=LrZVvV10; 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="iB3X2hpV"; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="LrZVvV10" 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 66MD1jXj695562 for ; Wed, 22 Jul 2026 13:15:46 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= E2pYKig/VqmDd/aJ5K8VxO3FvWWhc6q9pFKs9v7eaVI=; b=iB3X2hpVcO1pMabk se6520ykhfMm+AvOmkQJ9e5t1+9kvRluQfklrdEQf7Fdldq1Lummzx/d9xGx4Ut1 EcbsZJMuPmC8U3bzrhAW8JuTeU2RaDns6WzFyW2fqXOB0YZ/N6KtzJ3fvSbVdUqS 9zZYBOo1z8/Cn1L5pr85uxiqmFT03wq99VyWZ+ZQRF1fBbrx67pANfo2hYNDpqVh wsv5fnE2Vz+pILMCG+7nOTBg8gGHAE3dZuZEV17J4EEc6fvLHbGWAWNdcncSxd9F LZGelCsvI++6KrRuNiDusffroNF/ZgbrSlsjuQ4n4aBW4ke6hhC44vP4y6m6G39z plPPAw== Received: from mail-qt1-f199.google.com (mail-qt1-f199.google.com [209.85.160.199]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4fjtn2s2cn-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Wed, 22 Jul 2026 13:15:45 +0000 (GMT) Received: by mail-qt1-f199.google.com with SMTP id d75a77b69052e-51c1e777a15so25863391cf.2 for ; Wed, 22 Jul 2026 06:15:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1784726145; x=1785330945; 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=E2pYKig/VqmDd/aJ5K8VxO3FvWWhc6q9pFKs9v7eaVI=; b=LrZVvV10v3khPo5dPw3UNMekpdlTdyS9bEByCCmqWTPvSuuAXV6ON3o3wqPKdON+Yu 7cO1ZClhpzJHbzJhlnlTi2/7GQa4kbuE36a8ok8sT5smAGotSn/7+YMVNKyDFLFbjiQF Qn49HM/JaWUGMy8WkSFXRAYzPLxe0sytQBlAQZeHP7Imy81kNL/RhmZzwTzKPF7NnGbY pPSP2LOMTj1Tqpdfep1eepEEDrtKmDL2dE755jc2z93wVGhE410xf7qSrERI/gdS/Hgh RYjoYjbWNWNM7qMO0cDmJR/CCaicrzmFFKHck65zb3zQLtWyBNybx9cpO24pzzdUiQAQ O2Xg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1784726145; x=1785330945; 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=E2pYKig/VqmDd/aJ5K8VxO3FvWWhc6q9pFKs9v7eaVI=; b=eJ4Ch6xCCEt07iDyiInr8KCD4JOZdxn1kpxpoKFmLjWxWfcHOLKMY9OASH54nZysuv CWD11vBJKofPkQl480mgjSeYOqw/YKApmq768Oqcl5dT/u87ET08v34rSD1q83DiOA+i m+KUa8lnFABqTXViC/FUmpp42yYQWhUnxUN+GiQw1gVsc79urRupQHenSJwMoE6oXJ6K Touik/9G9ll2eqAF5CMSk1sXCwVO1mS0q7pj4t/khtJCc1eRyEE9BbEsIAckX3rjiz2R LHev6qhuysEPKzl49Cr5S2zeA9D5WanOqLwtRhjSH8JDq86RAJ1vkoTW8AqINcQaxBEQ TFbw== X-Forwarded-Encrypted: i=1; AHgh+RpoyVZHFsFR7vL0m1FNP3nD3OFL1ZleUEqhztQteQXAv1d9dcjQomTL4e1rPhOdM6Eg3FbwhtQpcq1Vy1s=@vger.kernel.org X-Gm-Message-State: AOJu0YwJl5xVyZ8bs8/esDB4wSEC+4XOeO9GvP90p/X7DmRTGPDh2/rh 7Cq6SZEhdEmNxxid/ssaLDWgYKCL63lw6eEzvapN8nkmRc/vgUArocwFzYOBiBmG7eie9CPzDsG HkgzRBk2pWZ8XRbKqT2H2+H+liX7z5zaKs+yDtdrQh15B7+GJx3zHfkjEpX90ECGMbdM= X-Gm-Gg: AR+sD12xhpUw+pd3YyBXPvZFBrOHfjueS1EiQ5oNOd/04eX0rxa8ftcocEu1FrM9gfn NYRfhho/sq2z4jiOxZo0opb+n861x6M04EJ2T4bHRarGkw3A0hVh657fqUJWOK2KI32gS1Bmm4a FB4RMcHl/QkKCl35LIbCa3McEuWAxA2h3z6FdnrJVlg5jbL1rDOzESnZtekJzuHECOavHzh98rB 44hqG690MTn3x2MjPuSODpGQTCXMnVfAI7XPDo7cfDaJX3rmNWGLuyGI2w2CNgP9aKQ3+qAMLSt f5AwCXp+s1nnVkmsZxdCewjdzXozImj4ZtFQCC8L/2agqWu2bKqFSSBZjzp2+d+R+W114Z1UvOP tdinWdLWmS0/jYxLpbpSAktyk X-Received: by 2002:ac8:5c83:0:b0:51c:857f:9c1c with SMTP id d75a77b69052e-527cc19d2demr27925261cf.11.1784726145210; Wed, 22 Jul 2026 06:15:45 -0700 (PDT) X-Received: by 2002:ac8:5c83:0:b0:51c:857f:9c1c with SMTP id d75a77b69052e-527cc19d2demr27924861cf.11.1784726144702; Wed, 22 Jul 2026 06:15:44 -0700 (PDT) Received: from [192.168.120.193] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c1c32ebbb0fsm101684966b.53.2026.07.22.06.15.42 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 22 Jul 2026 06:15:43 -0700 (PDT) Message-ID: <1fbe6819-e0cb-4409-9abb-d71272e63448@oss.qualcomm.com> Date: Wed, 22 Jul 2026 15:15:41 +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] clk: qcom: gcc-qcm2290: don't park QUP RCGs upon registration To: Dmitry Baryshkov , Bjorn Andersson , Michael Turquette , Stephen Boyd , Brian Masney , Douglas Anderson Cc: Stephen Boyd , linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260722-agatti-no-park-v1-1-31ae3a4774e5@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260722-agatti-no-park-v1-1-31ae3a4774e5@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzIyMDEyOSBTYWx0ZWRfX0cTDdjG6yeqj kllB+VCtWFUMqzbf5YU6VwBeIA96AMkdf19YXzQCQs9HgUsjkBBg7ei29MpRWVynV+HiVJhF7PE 4HGjA/zZonGTO1t+sWKx1xtdOmJIZOuyw0bydZNgyXYC8mCRgRgdHkWDXE0mSB9HKGvtNc4NMXM 0CBC0qA93vIAaqjMi2Qmgy2MZysj1zqLJeBAwc1zZnKxZ9ZjyJBuBCnZfXqBxvbn4pUikALaeDg rVzFNnIUDIIlc6LACKE5mC/Jo4F7HqXfUWuawkjV+YOD1EjWiT82nmpgwk37272sJ3aSLeoExiS iyAwWvr+6g0h8aORSarhjDZviHNG0MR9h5NgsflsVse/ufccJHmW2P7vVtgeWNcZbHp4k4pSLox SRVPhfH4LM4TgF6nYVvpONVmSc5HgGATcWbeUJakozugbFtxsR7q8bdm6YcxX5PuwxClR7n6tKQ SJXkDiuvBkDaJepJ91Q== X-Proofpoint-Spam-Info: AW1haW4tMjYwNzIyMDEyOSBTYWx0ZWRfX8AZfBTanysBI aAxEP3XAD6YbdmWdsu5gbFey/yH620RZ5AaflzzHmMzIpMeH4lMPw/j2989Wyl00cr/vSyRdTio Y1g/21H09n2Nnib2bD9vMtDibBuhNFs= X-Proofpoint-GUID: 0WuDocjxUtTGD6iioOcKvA2oV0OEfJzM X-Proofpoint-ORIG-GUID: 0WuDocjxUtTGD6iioOcKvA2oV0OEfJzM X-Authority-Analysis: v=2.4 cv=T+28ifKQ c=1 sm=1 tr=0 ts=6a60c281 cx=c_pps a=WeENfcodrlLV9YRTxbY/uA==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yx91gb_oNiZeI1HMLzn7:22 a=EUspDBNiAAAA:8 a=l6PFIUm38CZcM4dbOsgA:9 a=QEXdDO2ut3YA:10 a=kacYvNCVWA4VmyqE58fU:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-22_04,2026-07-21_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 phishscore=0 impostorscore=0 malwarescore=0 spamscore=0 clxscore=1015 bulkscore=0 lowpriorityscore=0 adultscore=0 priorityscore=1501 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607220129 On 7/22/26 2:46 PM, Dmitry Baryshkov wrote: > The gcc_qupv3_wrap0_s[0-5]_clk_src RCGs feed the QUP serial engines > (UART/I2C/SPI). Since shared RCGs are parked to XO at registration time, > binding the gcc-qcm2290 driver reprograms these clocks away from the > rate configured by the bootloader. For the UART used as the boot console > this drops early console output until the serial driver later > reconfigures the clock. > > Switch the QUP wrap0 clock sources over to > clk_rcg2_shared_no_init_park_ops so their frequency is left unchanged at > registration time, keeping the bootloader-configured console working > across the gcc driver probe. > > Fixes: 01a0a6cc8cfd ("clk: qcom: Park shared RCGs upon registration") > Signed-off-by: Dmitry Baryshkov > --- Reviewed-by: Konrad Dybcio Konrad