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[103.229.16.4]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-cc43d3a08fesm1113532a12.6.2026.09.03.08.02.28 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 03 Sep 2026 08:02:33 -0700 (PDT) Message-ID: Date: Thu, 3 Sep 2026 23:02:26 +0800 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 v3 04/12] clk: qcom: ipq-cmn-pll: Register CMN PLL /2 clock To: Konrad Dybcio , Bjorn Andersson , Michael Turquette , Stephen Boyd , Brian Masney , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Konrad Dybcio Cc: linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, quic_kkumarcs@quicinc.com, quic_linchen@quicinc.com, quic_leiwei@quicinc.com, quic_suruchia@quicinc.com References: <20260814-qcom_ipq5210_cmnpll-v3-0-21c3db378611@oss.qualcomm.com> <20260814-qcom_ipq5210_cmnpll-v3-4-21c3db378611@oss.qualcomm.com> <219ad037-ff37-40fa-babd-21276ff23f50@oss.qualcomm.com> Content-Language: en-US From: Jie Luo In-Reply-To: <219ad037-ff37-40fa-babd-21276ff23f50@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTAzMDEzMCBTYWx0ZWRfXxeMUPDte3NNL 8twyuNigFQzd+RIRuETXsOGAaCDHCtqU96CMWUOu+3gkPbxNnbVjbeyf/wrXSrdG04k7nHtkwZV pTlxk2LYZt5cZByLnjqlFx0ikC5roB5vpPhDG/vymblkCBR16WB55P0XlbN5XRo3PnO5P1UbyOF ODjWeK53fA6JgmONIHZbYIYieqd5PNXjIRqE5kV7Wkol1a5FhsHa8pKu/VvDpZhdugG09W63QvT jii++iprDr+uLQmZUETiyjwQRMwPezA/aMBhob/BWYhSVopMAzIs8uqQQEuMipqQ11OrsIf2cFx H1t4RDRlj+hP3upy9sA+FiSPIkQIKNeOJE/kDmWsoXI79gjz6VB2vyNKNfEByo45e7aBYFlsLl/ 7nJnKhfH5J4WlWrMaWKWpnD887aGnYw4H4+59OQRKsEEk/RWYeNCBZ9AVNxTiMha6HmzA9xPSpe YxS9+Le4r0sIwpsfbig== X-Proofpoint-Spam-Info: AW1haW4tMjYwOTAzMDEzMCBTYWx0ZWRfX0I3Z7++Lf87E JyNatWVlW1H/xfFptDVY00/c0FVWDMlEtJ+IJXZoVgxIRe4AeCt1E4cOFZWI/jsq2FZqWLQMZ3+ On2fQnCBMWKr0kKz8wwZMBZRmmTk6/M= X-Proofpoint-GUID: SkBlErN5K-4fm_wryaPl7QpfBqsr17nS X-Proofpoint-ORIG-GUID: SkBlErN5K-4fm_wryaPl7QpfBqsr17nS X-Authority-Analysis: v=2.4 cv=LZ4MLDfi c=1 sm=1 tr=0 ts=6a998c0b cx=c_pps a=rz3CxIlbcmazkYymdCej/Q==:117 a=nuhDOHQX5FNHPW3J6Bj6AA==:17 a=IkcTkHD0fZMA:10 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=YMgV9FUhrdKAYTUUvYB2:22 a=tiEyg7sXe0Pth-w7ixUA:9 a=QEXdDO2ut3YA:10 a=bFCP_H2QrGi7Okbo017w:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-09-03_04,2026-09-03_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 spamscore=0 lowpriorityscore=0 adultscore=0 clxscore=1015 bulkscore=0 priorityscore=1501 impostorscore=0 malwarescore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2609030130 On 9/3/2026 7:55 PM, Konrad Dybcio wrote: > On 8/14/26 2:48 PM, Luo Jie wrote: >> Most CMN PLL output clocks are derived from the 12 GHz PLL output >> through a shared, physical /2 stage, ahead of any further per-clock >> processing: a gated fixed rate (PCS/ETH0/ETH1/ETH2/EPHY/ETH), a >> configurable divider (NSS/PPE/PON), or a rate-select bit (EPHY-RAW). >> This /2 stage is present in the CMN PLL block on every SoC supported >> by this driver, not just IPQ5210. > > I'm not sure how the mention of IPQ5210 here is significant > > Konrad The /2 stage is common to all SoCs supported by this driver. I will remove the platform-specific mention and keep the explanation generic.