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[199.106.103.52]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-33450e140d3sm38236827eec.4.2026.09.09.06.16.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 09 Sep 2026 06:16:56 -0700 (PDT) Date: Wed, 9 Sep 2026 21:16:38 +0800 From: Shawn Guo To: Konrad Dybcio Cc: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bartosz Golaszewski , Dhruvin Rajpura , Anandu Krishnan E , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 0/6] arm64: dts: qcom: nord: Add remoteproc and PMIC support Message-ID: References: <20260904081619.593602-1-shengchao.guo@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: X-Proofpoint-GUID: xV381sMntB7lr5c2bPtx4Qc6QXvSYbH5 X-Proofpoint-Spam-Info: AW1haW4tMjYwOTA5MDE0OSBTYWx0ZWRfXwdBpSPnIyoi5 NLWMx6PUwBTKKaaWX30QJ6JYjC0XSJ0oEyfJ9Sgr/ewSOLTu2cPk9Vz8elt5+G3w9l4FNSGZlev rc5+08D3Gs0CPTXPbZCUrtP9aq8fwZ4= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTA5MDE0OSBTYWx0ZWRfXylHdMW2jGd4N wZoVLSkfhfRi8oliFyrijsEMKC4CC37HgVYlLahhOsCKakLSYkG6i0ZykGw8dvyKRWumOuvJ6oZ MmylSR5WLkBsWW16yfPFbOOXXRrIeEDswhD2iEyiGzJvCmfuUAq62hZf+wBXhf/RPY2tZPmH7uF V25MC5aWMMJiolpuDKuElHqyrURSrwFcLlVtN6Y9bxuR9n37uhgXLo/WYT0DnEm4ff1DX0S3t8w /nHKLeaLWi+tyHyFIU1dvbWlIly8gi2ZBPUkMKaWfNlgLkASVJfYT7SrdMOZ68vXd/aqVVnxB3Z T8W9ukGYxT6fDLsBMq8wmuYDpYRVOj84eEqQOt7Vqh0auT8aFEOKd7EWeLEXg+L0IWpfhV+jCiA tkToypMp6KbxjxKPheQoNbFpcQnvLGS6QPl7cW4/ty6rP75QqUNJxk6Bw4xQ0ULWxZpGE+p2VsU McFxZM9ojZpA/jVlN5Q== X-Authority-Analysis: v=2.4 cv=S+jpBosP c=1 sm=1 tr=0 ts=6aa15c4a cx=c_pps a=RP+M6JBNLl+fLTcSJhASfg==:117 a=b9+bayejhc3NMeqCNyeLQQ==:17 a=kj9zAlcOel0A:10 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=ZpdpYltYx_vBUK5n70dp:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=B_aPWRgbl8lC6mU0Q60A:9 a=CjuIK1q_8ugA:10 a=iS9zxrgQBfv6-_F4QbHw:22 X-Proofpoint-ORIG-GUID: xV381sMntB7lr5c2bPtx4Qc6QXvSYbH5 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=2026-09-08_03,2026-09-09_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 spamscore=0 impostorscore=0 phishscore=0 lowpriorityscore=0 priorityscore=1501 suspectscore=0 clxscore=1015 bulkscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2609090149 On Wed, Sep 09, 2026 at 02:13:35PM +0200, Konrad Dybcio wrote: > On 9/7/26 2:06 PM, Shawn Guo wrote: > > On Fri, Sep 04, 2026 at 12:00:40PM +0200, Konrad Dybcio wrote: > >> On 9/4/26 10:16 AM, Shawn Guo wrote: > >>> This series adds ADSP and CDSP remoteproc support, the SPMI PMIC arbiter > >>> and the PMIC descriptions for the Qualcomm Nord platform, and adds the > >>> initial device tree for the Nord Ride Embedded board. > >>> > >>> Tested on next-20260903 > >>> > >>> Dependencies: > >>> - NMXC define: commit e484a765f543 ("dt-bindings: power: qcom,rpmhpd: Add NMXC power domain index") > >>> from git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm.git dt > >>> - Base DTS: https://lore.kernel.org/all/20260903140617.441111-1-shengchao.guo@oss.qualcomm.com/ > >>> - PMAU0102 MFD: https://lore.kernel.org/all/20260830034719.140213-1-shengchao.guo@oss.qualcomm.com/ > >>> - PMAU0102 thermal: https://lore.kernel.org/all/20260830101025.191697-1-shengchao.guo@oss.qualcomm.com/ > >>> - PMM8654AU RTC: https://lore.kernel.org/all/20260904074541.590485-1-shengchao.guo@oss.qualcomm.com/ > >>> > >>> Changes for v2: > >>> - Align PMIC comments in nord-ride-embedded.dts with nord-rrd.dts > >>> - Drop unneeded regulator-always-on and regulator-boot-on from RPMh > >>> regulators > >> > >> It still remains on something like 40% of the defined regulators > >> without any nearby comment justifying that - are all of these > >> intentional and necessary? > > > > Yes, all of those are intentional. > > > > - Supplies of LPDDR5 > > > > vreg_s1a_vdd2h_l --> VDD2H_LPDDR5_01 > > vreg_s5g_vdd2h_h --> VDD2H_LPDDR5_23 > > vreg_l1k_vdd2l --> VDD2L_LPDDR5_01 > > vreg_l1f_vdd2l --> VDD2L_LPDDR5_23 > > vreg_l3k_vdd1 --> VDD1_LPDDR5_01 > > vreg_l3f_vdd1 --> VDD1_LPDDR5_23 > > > > - Supplies of PMICs > > > > vreg_l8a_1p8 --> VDD_LDO_XO > > vreg_s3a_1p8 --> VDD_PX3 > > vreg_s5a_mv --> VREG_LDO_MV > > vreg_s7f_lv_sub --> VREG_LDO_LV > > > > - Supplies of Nord SoC > > > > vreg_l7a_1p2 --> VDD_PX14 > > Does RPMH require HLOS to cast these votes? Generally such supplies > should be taken care of in the fw Good point! I just did a couple of tests by: - dropping regulator-always-on/regulator-boot-on from these regulators - dropping these regulators completely from DTS Both booted fine (the nhlos software for Nord Embedded variant are still under heavy development though). So what do you prefer, dropping always-on/boot-on property or the regulators completely? Shawn