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charset=UTF-8 Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=HKLz0Itv c=1 sm=1 tr=0 ts=6a5e2a68 cx=c_pps a=1Os3MKEOqt8YzSjcPV0cFA==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yOCtJkima9RkubShWh1s:22 a=EUspDBNiAAAA:8 a=AGgUKOJZDmLg38P9jMQA:9 a=QEXdDO2ut3YA:10 a=hhpmQAJR8DioWGSBphRh:22 X-Proofpoint-Spam-Info: AW1haW4tMjYwNzIwMDE1NiBTYWx0ZWRfX4lpvqh0VJfBk /vfCXhNcQ62br/HbwIEN7gEpyjPN9d/8AVgbS1FT24hv76nBqAqiTnKX32NmsL/37Tqj8675L7y aORMOoWel1+Iw0od4akmWdf1JaBl5SA= X-Proofpoint-GUID: MsgIN_HQlbJmQFVXtNlDcVXvQMUFw5j5 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzIwMDE1NiBTYWx0ZWRfX2EsHULE5/CQ0 1rkopk4CZs9NfrzBl3qhL2MBm87FIyA2aI3f5KLEVdOEiTa15y1IL7qROevmF+eyO5f4MrmauMF Zt8pL2+vkL+qP3LrQtEXAN3avtCJwiACAA++QBS9klL0AG1Q3OEhVRXZC1z8rbbS4KkwWhY4Zys hZerDoyZ8DxW8+d+aG3TCMshxpDAgrD3y1aelwd57ilIKxGfjmTM5yhoqTL4D0lV0dtM0Umdru1 YC6Xtq7B8SmJ17p/sBYLV0DtQNlnaivGBuPQu6JHuzdzBfypzI/NvUtuHh2igzQCQV1oXEAh3en KEKMBKXVOyG92G5kgSQWe89V7iiaTELQQyAqfsE7QLEwKBj/e4VZDJ5Znd0D4aSp5TBoZ1g3j1n jeVoNlVMPVgC53fpAeUvKNb2MHc+jhftjAg/FY9MMo67StyJ9Par5Un29ALhT5idxTUPOjO0/pF +jS23H3ELm/noHESzIw== X-Proofpoint-ORIG-GUID: MsgIN_HQlbJmQFVXtNlDcVXvQMUFw5j5 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=2026-07-20_03,2026-07-20_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 impostorscore=0 clxscore=1015 malwarescore=0 bulkscore=0 spamscore=0 lowpriorityscore=0 suspectscore=0 priorityscore=1501 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607200156 On 7/20/26 4:00 PM, Shawn Guo wrote: > On Mon, Jul 20, 2026 at 10:40:09AM +0200, Konrad Dybcio wrote: >> On 7/20/26 6:20 AM, Shawn Guo wrote: >>> On Thu, Jul 16, 2026 at 07:14:56PM +0200, Konrad Dybcio wrote: >>>> On 7/16/26 4:26 PM, Shawn Guo wrote: >>>>> From: Deepti Jaggi >>>>> >>>>> Add initial device tree for the Qualcomm SA8797P Ride reference board, >>>>> which is built on Nord GearVM variant. >> >> [...] >> >>>>> +&scmi15 { >>>>> + status = "okay"; >>>>> +}; >>>>> + >>>>> +&scmi23 { >>>>> + status = "okay"; >>>>> +}; >>>> >>>> Why only these ones? Can all of the SCMI servers be enabled? >>> >>> These are the ones that have actual/enabled client/consumer devices, >>> e.g. scmi3 for ufs, scmi11 for uart, scmi23 for thermal sensors. >> >> We normally refrain from enabling resources in the DT only because the >> OS (really just Linux) doesn't have the necessary support to cope with >> the ""complete"" system description. In this case, there's a firmware >> layer drives everything and handles on/off requests gracefully >> (hopefully). >> >>> We can enable all the SCMI servers, but I'm afraid that cause kernel >>> to map shared memory and issue SMC calls to discover protocols (like >>> power domains, DVFS, resets) that have no consumers, which might waste >>> a small amount of memory and boot time. >> >> Please give it a shot and see if there's any immediate >> problems. > > Sorry! I have to take "We can enable all the SCMI servers" back. I just > tested. It seems that NHLOS ABL doesn't like the idea, and it > fails/refuses to boot Linux Kernel when we enable all SCMI instances in > DT. > > I can try to figure out the cause by working with Auto/firmware team > internally, but that likely takes some time. Can we address this later > as a separate topic, so that the whole series doesn't get blocked > for v7.3 merge window? Yes Konrad