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[103.229.16.4]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3ab38b9638fsm19498578a91.3.2026.10.13.00.27.53 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 13 Oct 2026 00:27:58 -0700 (PDT) Message-ID: Date: Tue, 13 Oct 2026 15:27:51 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 0/4] Add qref and refgen regulator support for QCS8300 and SA8775p PCIe PHYs To: Vinod Koul , Neil Armstrong , Manivannan Sadhasivam , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio , Abel Vesa Cc: Dmitry Baryshkov , peter.chen@oss.qualcomm.com, qiang.yu@oss.qualcomm.com, linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, ziyue.zhang@oss.qualcomm.com References: <20260916102023.2054761-1-ziyue.zhang@oss.qualcomm.com> Content-Language: en-US From: Ziyue Zhang In-Reply-To: <20260916102023.2054761-1-ziyue.zhang@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDEzMDAyOSBTYWx0ZWRfXxv4D0qdfyKkT HBW/g7BodDwfbS0A748LZr2D1fzIflFQ0GGdnTiEr7HDA3+EgbnrHVgtITl1e/cebZez17Cdu6t 7HYLdXeHXXHU5Cvmw+6LrCn11y0cQlS9PxiC2xdcMepSkuFuQjKVQWgb/iuai+Lewrj6bGN/ypT sWdl7P/hB0NYpAIto0YMJdadZqGL80lPoN4kYnaiKMhj2qzHmkgFqZp49T1HwbWZZVsmnK9FwYV 6SZYC8a0HhONJcQ7kenGNoyGoKES+fnWEIDPl+vjbdksJP9sB3+99lHnIh9cn6Yr/m7azBjP6Q1 bF9bldzOu6K6YAPrpfWMEKefAK3ZPsFWnXJ2w9tCSJX/Pszda4umUZHdsQ7mxDY5A15GBElM5de OioedfTb2Do/bk1uJZhzSScChkp4TgUzLFP79xOL8YwkJWeu0ukNtfmjL56H0FidDDcatBHj3bD 6BeoaIX7bRigo51SHtg== X-Authority-Analysis: v=2.4 cv=JN+uIMKb c=1 sm=1 tr=0 ts=6acddd80 cx=c_pps a=UNFcQwm+pnOIJct1K4W+Mw==:117 a=nuhDOHQX5FNHPW3J6Bj6AA==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_glEPmIy2e8OvE2BGh3C:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=ka6KI2ZnJyLrzUlNBNoA:9 a=QEXdDO2ut3YA:10 a=uKXjsCUrEbL0IQVhDsJ9:22 X-Proofpoint-Spam-Info: AW1haW4tMjYxMDEzMDAyOSBTYWx0ZWRfX2IDm0gZQkXzj awV1e/VdVBjgMRYmpZ5oK2BeJ4kDCgoeAbpSnxxfTiJk7UcbkWxNUFdZgcxWtP5UJrZzUL4XlTx LXHagwMaX7v4FrGgZ6DGEezeJ4Tq0dU= X-Proofpoint-ORIG-GUID: -zSRYTBpZ_D4Panfs1c6lFPhMZOj_zKD X-Proofpoint-GUID: -zSRYTBpZ_D4Panfs1c6lFPhMZOj_zKD 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=2026-10-13_01,2026-10-09_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 bulkscore=0 priorityscore=1501 adultscore=0 suspectscore=0 phishscore=0 impostorscore=0 lowpriorityscore=0 clxscore=1015 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610080000 definitions=main-2610130029 On 9/16/2026 6:20 PM, Ziyue Zhang wrote: > This series adds qref and refgen regulator support for the PCIe QMP PHYs > on QCS8300 and SA8775p platforms. > > The PCIe PHYs on these SoCs require dedicated qref and refgen voltage > supplies for stable operation. Without enabling these supplies, PCIe may > be unstable and the system can occasionally crash under certain scenarios. > > The refgen supply in particular works around a hardware issue where both > QREF and the PCIe PHY are expected to depend on refgen2, but QREF actually > depends on refgen3. This series therefore votes for refgen3 manually via > the refgen supply. > > Changes in v2: > - Expand commit message to explain why these supplies were missing and > what issue was observed (Mani) > - Remove redundant vdda-refgen-supply overrides from qcs9100-ride.dts > and qcs9100-ride-r3.dts; the supplies are already defined in > lemans-ride-common.dtsi which both files include > Link to v1: https://lore.kernel.org/all/20260810112735.1326807-1-ziyue.zhang@oss.qualcomm.com/ > > Ziyue Zhang (4): > dt-bindings: phy: qcom,sc8280xp-qmp-pcie-phy: Add vdda-refgen and > refgen supply properties > phy: qcom: qmp-pcie: Add qref and refgen regulator vote for QCS8300 > and SA8775p PHY > arm64: dts: qcom: qcs8300: Add qref and refgen supply for PCIe PHYs > arm64: dts: qcom: sa8775p: Add qref and refgen supply for PCIe PHYs > > .../phy/qcom,sc8280xp-qmp-pcie-phy.yaml | 27 +++++++++++++++++++ > arch/arm64/boot/dts/qcom/lemans-evk.dts | 4 +++ > .../boot/dts/qcom/lemans-ride-common.dtsi | 4 +++ > arch/arm64/boot/dts/qcom/monaco-evk.dts | 4 +++ > .../arm64/boot/dts/qcom/monaco-monza-som.dtsi | 4 +++ > arch/arm64/boot/dts/qcom/monaco.dtsi | 4 +++ > arch/arm64/boot/dts/qcom/qcs8300-ride.dts | 4 +++ > drivers/phy/qualcomm/phy-qcom-qmp-pcie.c | 16 ++++++----- > 8 files changed, 61 insertions(+), 6 deletions(-) Hi Maintainers, It seems the patches get reviewed tag for a long time, can you give this series further comment or help me to merge them ? Thanks very much. BR Ziyue