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Wed, 09 Sep 2026 06:50:27 -0700 (PDT) X-Received: by 2002:a05:6214:2301:b0:90c:e7f4:8bfe with SMTP id 6a1803df08f44-9104771744amr280942556d6.2.1788961826639; Wed, 09 Sep 2026 06:50:26 -0700 (PDT) Received: from [192.168.202.12] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c260d6dfad6sm775719166b.60.2026.09.09.06.50.23 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 09 Sep 2026 06:50:25 -0700 (PDT) Message-ID: Date: Wed, 9 Sep 2026 15:50:22 +0200 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 v2 0/6] arm64: dts: qcom: nord: Add remoteproc and PMIC support To: Shawn Guo , Kamal Wadhwa 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 References: <20260904081619.593602-1-shengchao.guo@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-Authority-Analysis: v=2.4 cv=bd1bluPB c=1 sm=1 tr=0 ts=6aa16429 cx=c_pps a=HLyN3IcIa5EE8TELMZ618Q==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=eoimf2acIAo5FJnRuUoq:22 a=i3Gk5ewI70OSVfywh64A:9 a=QEXdDO2ut3YA:10 a=bTQJ7kPSJx9SKPbeHEYW:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTA5MDE1NCBTYWx0ZWRfX6Eob0UX8t/BC 9fG9kjB/HE6ovVeAaDCiF5Qn0w9V8/QY6u7x55hk00Xg1hNBOeC28kV0+RwcovzTP1Z24vFpOKo BCeHEKb6Vw46VVuiLRzdmYUK5DkmuhWZJA7WpXanzvujHrLRefubu2fMWEL9uY0JbK6U09u9RrI km6zAT16dKhQ0/74Kop8keM2Q1KOwdmw4ArTtTP9rzd00+ksYkus6sIQEh/V5059gL6vuEb7jvF jEm4bAtC5Jrs+BSpTiheFqf53PVJM4gH+jo3/D10L0mVDZEoDl8OMY2OM7GA0bRfEWjQUJTbq9/ HiZfJP5OWmZwvNZRtoCv5OfdOAVdzedm/sZ3i0AjgANlZggCsNYUyxvjA1B4YiK8Ho31HBd35Zw fXezOgvo93xK2KxRDeeTrv2mBPSqCxaj4hqcUPy3xEoOT7KSbaiNGB+HmB/FvazzyQ5ZaRkTA7W 6fuoYDmhH8Mxj+sCzgw== X-Proofpoint-ORIG-GUID: JwD1pHB9fmOQoapYC09Rgu68iaXH-v77 X-Proofpoint-Spam-Info: AW1haW4tMjYwOTA5MDE1NCBTYWx0ZWRfX/sm9YGJUZWO/ NbEnyYF56qDtSrB6XPa8FQ4wprg1a/I8sNxJqXKMaiwKPM2XHFOAAVoWHRkT6OZUdsl50fKVk7l 26QGssoPn3XNUP4h7NBncUvOi6riWAI= X-Proofpoint-GUID: JwD1pHB9fmOQoapYC09Rgu68iaXH-v77 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 clxscore=1015 spamscore=0 lowpriorityscore=0 suspectscore=0 bulkscore=0 impostorscore=0 phishscore=0 priorityscore=1501 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2609090154 On 9/9/26 3:16 PM, Shawn Guo wrote: > 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. [...] >>> - 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? I think it's best to reach out to the PMIC folks and ask what they think +Kamal? Konrad