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Thu, 25 Jan 2024 05:49:40 GMT Received: from [10.218.19.46] (10.80.80.8) by nalasex01c.na.qualcomm.com (10.47.97.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.40; Wed, 24 Jan 2024 21:49:34 -0800 Message-ID: <77903574-696b-90f9-f136-be5c5d219ba1@quicinc.com> Date: Thu, 25 Jan 2024 11:19:31 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.9.0 Subject: Re: [PATCH 2/3] clk: qcom: gcc-sm8150: Add gcc_parents_0_ao support Content-Language: en-US To: Konrad Dybcio , Bjorn Andersson , Michael Turquette , "Stephen Boyd" , Rob Herring , "Krzysztof Kozlowski" , Conor Dooley , Taniya Das CC: , , , , Ajit Pandey , Imran Shaik , "Jagadeesh Kona" References: <20240123-gcc-ao-support-v1-0-6c18d5310874@quicinc.com> <20240123-gcc-ao-support-v1-2-6c18d5310874@quicinc.com> From: "Satya Priya Kakitapalli (Temp)" In-Reply-To: Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01c.na.qualcomm.com (10.47.97.35) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: 962Qzww9toPsXtvzkXVnHV6vFwJI1sfr X-Proofpoint-GUID: 962Qzww9toPsXtvzkXVnHV6vFwJI1sfr X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-25_02,2024-01-24_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 clxscore=1015 suspectscore=0 bulkscore=0 spamscore=0 priorityscore=1501 mlxscore=0 phishscore=0 lowpriorityscore=0 mlxlogscore=834 adultscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2401190000 definitions=main-2401250037 On 1/23/2024 11:17 PM, Konrad Dybcio wrote: > > > On 1/23/24 17:34, Satya Priya Kakitapalli wrote: >> Add active_only support for gcc_parents_0, this is needed because >> some of the clocks under it are critical which would vote on xo >> blocking the suspend. >> >> Signed-off-by: Satya Priya Kakitapalli >> --- > > Is there a need to keep gcc_cpuss_ahb_clk_src around? Do we do any > ratesetting on it? Should we ever turn it off? > The branch clocks under gcc_cpuss_ahb_clk_src are critical clocks, which are running at 19.2Mhz causing vote on XO during suspend. As of now no rate setting is happening but this rcg is useful to get the exact rates from debugfs. Hence this change is needed to avoid XO shutdown issues.