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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b80013c7ea0sm321246666b.65.2025.12.17.04.31.23 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 17 Dec 2025 04:31:25 -0800 (PST) Message-ID: <7e1b7b46-f4d6-4028-8518-80e954dbb7cf@oss.qualcomm.com> Date: Wed, 17 Dec 2025 13:31:22 +0100 Precedence: bulk X-Mailing-List: devicetree@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: Akhil P Oommen , 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: Konrad Dybcio In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMjE3MDA5NyBTYWx0ZWRfX8JFV4tVgjIA2 gr7q4P3LWxRZK1T++NYSQLUOj0arU/5VkG0FhKKPusaynlv1fBoRDxnKeb4MKxTLHAcPGrgQAC9 Af2RslFLnnCpPS6Gp0Mm4m5MLcc6PuL7RUOQUEv7yprG5A8EcGq96FLI6zmASZxZJGgyOqEZ1+H 2zU8BGHaUoyrgbMlSPKKg5Z8BT56ylh/Ssa6xmMPVAAEhhpisTQVFiRwBmqbQrtIw7N0iCWdJTa LpDp+KPh2xRLK4jUUZ25GNkW5iI3jKVE5Zj8gBUz6OLAoqWlh4mOaIUchr14T7HDQOGXP2mF35n nNY7yOKO16Qkre60ICZ3HkghyD6lmZr8OmxTnerj/FGO9RCfcte1Ya3duyAzVV7Yg32kY1cC68r ckazzyLhbRZktocXHzdb4gaXPwlCBw== X-Proofpoint-GUID: 0_TGTc1t6NuH-E7NkqwbTgOLCPx77kS3 X-Authority-Analysis: v=2.4 cv=Fcw6BZ+6 c=1 sm=1 tr=0 ts=6942a2a0 cx=c_pps a=WeENfcodrlLV9YRTxbY/uA==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=wP3pNCr1ah4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=COk6AnOGAAAA:8 a=EUspDBNiAAAA:8 a=trE_h3K6eqWXygPE4hIA:9 a=QEXdDO2ut3YA:10 a=kacYvNCVWA4VmyqE58fU:22 a=TjNXssC_j7lpFel5tvFf:22 X-Proofpoint-ORIG-GUID: 0_TGTc1t6NuH-E7NkqwbTgOLCPx77kS3 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=2025-12-17_01,2025-12-16_05,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 clxscore=1015 malwarescore=0 spamscore=0 suspectscore=0 impostorscore=0 priorityscore=1501 phishscore=0 bulkscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2510240001 definitions=main-2512170097 On 12/5/25 3:05 PM, Akhil P Oommen wrote: > 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. Please don't take it the wrong way, but who else would know that? :/ Konrad