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Fri, 05 Dec 2025 06:05:56 -0800 (PST) X-Google-Smtp-Source: AGHT+IGAgA9orODpp4Rjh7ULin/QPXV8ZFFMmR+nawulDJMB+XXWkFsNYSBrBeiA5YYZFPjA+0UAQQ== X-Received: by 2002:a05:6a20:3d0f:b0:366:14af:9bbe with SMTP id adf61e73a8af0-36614af9c79mr270635637.72.1764943555822; Fri, 05 Dec 2025 06:05:55 -0800 (PST) Received: from [192.168.1.4] ([106.222.235.197]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-bf6a2746f95sm5001184a12.30.2025.12.05.06.05.49 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 05 Dec 2025 06:05:55 -0800 (PST) Message-ID: Date: Fri, 5 Dec 2025 19:35:48 +0530 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 5/6] arm64: dts: qcom: sm6150: Add gpu and rgmu nodes To: Konrad Dybcio , Dmitry Baryshkov Cc: Rob Clark , Sean Paul , Konrad Dybcio , Dmitry Baryshkov , Abhinav Kumar , Marijn Suijten , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Jessica Zhang , Dan Carpenter , linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Jie Zhang References: <20251122-qcs615-spin-2-v3-0-9f4d4c87f51d@oss.qualcomm.com> <20251122-qcs615-spin-2-v3-5-9f4d4c87f51d@oss.qualcomm.com> <8560ad26-4756-4c2a-97c3-2c5c0695172c@oss.qualcomm.com> <6fa1da5d-9ea7-4d72-a03a-82edc4bef099@oss.qualcomm.com> <9141e67d-2837-4e73-bd3a-9a9c5b8f72f9@oss.qualcomm.com> <6dc39f3e-0a2f-42ca-a088-4b62a8153001@oss.qualcomm.com> Content-Language: en-US From: Akhil P Oommen In-Reply-To: <6dc39f3e-0a2f-42ca-a088-4b62a8153001@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=HeAZjyE8 c=1 sm=1 tr=0 ts=6932e6c5 cx=c_pps a=rEQLjTOiSrHUhVqRoksmgQ==:117 a=jBSxni06C9HboLYAjQ55wg==:17 a=IkcTkHD0fZMA:10 a=wP3pNCr1ah4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=COk6AnOGAAAA:8 a=EUspDBNiAAAA:8 a=OEjwK6i1zzq-GUtPt80A:9 a=QEXdDO2ut3YA:10 a=2VI0MkxyNR6bbpdq8BZq:22 a=TjNXssC_j7lpFel5tvFf:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMjA1MDEwMSBTYWx0ZWRfX7dDkj15cLRPp hWrhQE3KGr8fxgNlsx+Knji2dyLOYGpI/R+Epv8l+7R5tvKLaCMvP8sxVP+pKo+YhAKAma/LPOW j6VrzpF1StgaVz5JcAiRTMJOXWFOfr4aXN6KQVBYZ2fFAT4WzKMT5DTqXsb9alHm7VtjOzLOahn b8dqJ8NvmaVy3YH3Qc7U8Fol2yLnYvg6TlkOavAhTYCnRDPKIPSqNZcSvzfhJzS4z2iVZOqHAsn M33CCbUnkyAZ43fw3pjcGwpwKH+ZM9hfiNj8thbNwHOIX/qzrGz/EgQK73K3/awneZSnK1RxjV3 1ePbQsSGwxj2Fq0C84FHqizjXEDwWY3OE8YLJhL4f1b9tpdV7PkpKrZuRLktHNdbNeoHTmwQO98 vU4m0U7LZ+gjlDd1UOJBiB/mSsIZMA== X-Proofpoint-ORIG-GUID: wzjxmLzGazuzaTDJ6Y3csbJC3W564Ipi X-Proofpoint-GUID: wzjxmLzGazuzaTDJ6Y3csbJC3W564Ipi X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2025-12-05_05,2025-12-04_04,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 clxscore=1015 suspectscore=0 spamscore=0 bulkscore=0 lowpriorityscore=0 priorityscore=1501 phishscore=0 impostorscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2510240001 definitions=main-2512050101 On 12/5/2025 7:22 PM, Konrad Dybcio wrote: > On 12/5/25 2:41 PM, Akhil P Oommen wrote: >> On 12/4/2025 7:01 PM, Konrad Dybcio wrote: >>> On 12/4/25 11:13 AM, Akhil P Oommen wrote: >>>> On 11/26/2025 6:12 AM, Dmitry Baryshkov wrote: >>>>> On Sat, Nov 22, 2025 at 03:03:10PM +0100, Konrad Dybcio wrote: >>>>>> On 11/21/25 10:52 PM, Akhil P Oommen wrote: >>>>>>> From: Jie Zhang >>>>>>> >>>>>>> Add gpu and rgmu nodes for qcs615 chipset. >>>>>>> >>>>>>> Signed-off-by: Jie Zhang >>>>>>> Signed-off-by: Akhil P Oommen >>>>>>> --- >>>>>> >>>>>> [...] >>>>>> >>>>>>> + gpu_opp_table: opp-table { >>>>>>> + compatible = "operating-points-v2"; >>>>>>> + >>>>>>> + opp-845000000 { >>>>>>> + opp-hz = /bits/ 64 <845000000>; >>>>>>> + required-opps = <&rpmhpd_opp_turbo>; >>>>>>> + opp-peak-kBps = <7050000>; >>>>>>> + }; >>>>>> >>>>>> I see another speed of 895 @ turbo_l1, perhaps that's for speedbins >>>>>> or mobile parts specifically? >>>>> >>>>> msm-4.14 defines 7 speedbins for SM6150. Akhil, I don't see any of them >>>>> here. >>>> >>>> The IoT/Auto variants have a different frequency plan compared to the >>>> mobile variant. I reviewed the downstream code and this aligns with that >>>> except the 290Mhz corner. We can remove that one. >>>> >>>> Here we are describing the IoT variant of Talos. So we can ignore the >>>> speedbins from the mobile variant until that is supported. >>> >>> Writing this reply took probably only slightly less time than fixing >>> the issue.. I really see no point in kicking the can down the road >> >> We don't know the speedbin fuse register and the values applicable for >> this IoT chipset. Currently, there is only a single variant and no SKUs >> for this chipset. We can add them when those decisions are taken by the >> relevant folks from Product team. > > If there's only a single variant right now, could you simply read back > the value and report it where necessary to make sure the internal teams > are aware? > > There's surely *some* value fused into the cell.. We don't know which register to read at the moment. It could be the hard fuse register or some soft fuse register at an arbitrary location. It is better to leave it as it is for now. Who knows, maybe there won't any SKUs at all. -Akhil > > Konrad