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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b72bf4fbf3csm1069581766b.26.2025.11.10.04.04.47 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 10 Nov 2025 04:04:49 -0800 (PST) Message-ID: <454ad8d6-43c9-4819-b849-c123fa9d33bd@oss.qualcomm.com> Date: Mon, 10 Nov 2025 13:04:46 +0100 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 0/3] add vdda-aux regulator support for QMP PHY on QCS6490 To: Amit Singh , andersson@kernel.org, konradybcio@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, vkoul@kernel.org, kishon@kernel.org, lumag@kernel.org, neil.armstrong@linaro.org, quic_wcheng@quicinc.com Cc: linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, quic_riteshk@quicinc.com, quic_rajeevny@quicinc.com, quic_vproddut@quicinc.com References: <20251110115806.2379442-1-quic_amitsi@quicinc.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20251110115806.2379442-1-quic_amitsi@quicinc.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-GUID: OHxlEGcZ2EU1UdHlheU1vdNBYTJpGb6t X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMTEwMDEwNSBTYWx0ZWRfX6mS3ekT+Z4Yg q0AHBHqRMGIf0uOpa6jIbHhCEI+K9RlJXlMOaX48/x19TnQqn8IMG+mJ/ES4O9XaKHfffsOWbRS wx56nf47QBazsr4E9j0LdyjSS9UsXEsBMt7NLaoSvs9JjDJPG7ngPnZtK08OHYbNZdk0oANeFM7 +ab9BvpcKHmLfo8wBNAKvrtgsRBytu/WHOYusDwY+DYFZpDd3peBeXBPgAInHjKtmVPqEEAYsGb ulwBnUjDvyjGo4FVMgLf2dRNNMuYGXdc2jguyj3/Da6HQOPbXe5o/5FUC+2dB0rN0hD3yE8IPfD EC4wx3bk2JSLhGKF/FaPN2eRR28wF4InLKrBV5ZW0mrHhhfSZ/VIVbbHCsiipockCZ9H6vB+Uj4 W3j+mxyoPg0q0CD8cY8LVWPvN4oMXA== X-Authority-Analysis: v=2.4 cv=GbEaXAXL c=1 sm=1 tr=0 ts=6911d4e2 cx=c_pps a=EVbN6Ke/fEF3bsl7X48z0g==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=6UeiqGixMTsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=yJhrbEhF6J9Oi74tKswA:9 a=QEXdDO2ut3YA:10 a=a_PwQJl-kcHnX1M80qC6:22 X-Proofpoint-ORIG-GUID: OHxlEGcZ2EU1UdHlheU1vdNBYTJpGb6t X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2025-11-10_04,2025-11-06_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 malwarescore=0 priorityscore=1501 phishscore=0 bulkscore=0 spamscore=0 adultscore=0 impostorscore=0 lowpriorityscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2510240001 definitions=main-2511100105 On 11/10/25 12:58 PM, Amit Singh wrote: > The `vdda-aux` supply is necessary for proper power sequencing and reliable > USB enumeration on platforms that provide this rail. > > This series adds support for the `vdda-aux` regulator to the QMP PHY driver > and updates the QCS6490 RB3 Gen2 device tree to provide the required > auxiliary 3.0 V rail for stable USB PHY operation. > Platforms that do not define `vdda-aux` remain unaffected. > > Tested on RB3 Gen2 (QCS6490) platform to ensure proper USB enumeration and > PHY stability. I don't see this vreg going to the SoC on the schematics. What is it actually powering? Konrad