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[199.106.103.52]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-13ce29c2dcdsm27488878c88.1.2026.07.19.21.20.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 19 Jul 2026 21:20:33 -0700 (PDT) Date: Mon, 20 Jul 2026 12:20:28 +0800 From: Shawn Guo To: Konrad Dybcio Cc: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bartosz Golaszewski , Deepti Jaggi , devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v6 5/6] arm64: dts: qcom: Add device tree for Nord Ride board Message-ID: References: <20260716142605.2398433-1-shengchao.guo@oss.qualcomm.com> <20260716142605.2398433-6-shengchao.guo@oss.qualcomm.com> <90769e77-c311-4a4f-be37-09065e217f55@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <90769e77-c311-4a4f-be37-09065e217f55@oss.qualcomm.com> X-Proofpoint-Spam-Info: AW1haW4tMjYwNzIwMDA0NCBTYWx0ZWRfX2ufJ/Jnh3ewB sGoin3foloIEGuhpiBM/SH8rtS6ByJtD5Z9y068+gSQ/2uz21oZuD+BXVI6mzFg6v3ZYGj+XZAg bJ0lp2uFJotaExmNh0HbrLaGU4bKuwA= X-Proofpoint-GUID: V2yunNBrnsXJD61G95qf0VoWb5YzJnOG X-Proofpoint-ORIG-GUID: V2yunNBrnsXJD61G95qf0VoWb5YzJnOG X-Authority-Analysis: v=2.4 cv=a+sAM0SF c=1 sm=1 tr=0 ts=6a5da213 cx=c_pps a=vVfyC5vLCtgYJKYeQD43oA==:117 a=b9+bayejhc3NMeqCNyeLQQ==:17 a=kj9zAlcOel0A:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=3WHJM1ZQz_JShphwDgj5:22 a=EUspDBNiAAAA:8 a=fVJQK2QLqq40QL6N-J4A:9 a=CjuIK1q_8ugA:10 a=rl5im9kqc5Lf4LNbBjHf:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzIwMDA0NCBTYWx0ZWRfXw6yMNXD7Mp5J w+MfCxhwOfKN9RhfAqF5qhyvcdbgSJM78S/yAau2aKpGbW1aqUhkoRGbPoBfQcVBV+4QZHekr1L bxXjRp8TgMcfmUD+hnSYK/UMAWv9xbKplYZmQ2O0ek1+dFR0LLMYqYCQ1YPPaqo+eXfDWAkBBSy +PgqFLaF5mpegN39hA/DXxuxubmaMDQ8TviRbZrdZ5SbgjJLhxhb9JuXFq7wvyl9JJb7JvIMqaO oTZGX2QQHQ6C6jTphu7uccWsXHibdnKtJqHw0mFzVsiiWxrURyW/AmVS8lXje7UjBMRi97CnG2W i0I7O/T1uAQCsaH/enHx0HOPLd3dqTHENF+RSeFUw+q8Ign0euNqJW9kfM7Dtt0lFAGsx3aR4oP uL56MBA0tMJj7qepwkYyxpHwo1QUcldW2Qeu/mtiFz70Xr7/U3C4tidargq8QFehoGKF1t29F44 vCXOKP/to5eyb8K9P+g== 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=2026-07-19_08,2026-07-17_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 clxscore=1015 impostorscore=0 malwarescore=0 spamscore=0 phishscore=0 priorityscore=1501 lowpriorityscore=0 adultscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607200044 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. > > > > - Configure UART15 as the primary console and UART4 as the secondary > > serial port > > - Enable UFS storage support > > - Define thermal zones for PMIC dies, UFS, and two SDRAM sensors, > > all sourced from SCMI sensor protocol on channel 23 > > > > Signed-off-by: Deepti Jaggi > > Signed-off-by: Shawn Guo > > --- > > [...] > > > +&scmi3 { > > + status = "okay"; > > +}; > > + > > +&scmi11 { > > + status = "okay"; > > +}; > > + > > +&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 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. scmi15 currently doesn't have any enabled consumers, so I will drop it for now. Shawn