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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-66a36996b12sm460342a12.25.2026.03.24.02.37.16 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 24 Mar 2026 02:37:17 -0700 (PDT) Message-ID: <774ef0b6-e3c9-4613-967f-617ff03adb7c@oss.qualcomm.com> Date: Tue, 24 Mar 2026 10:37:15 +0100 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2] arm64: dts: qcom: qcs6490-rb3gen2: Enable uPD720201 and GL3590 To: Bjorn Andersson , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Krishna Kurapati Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260323-rb3gen2-upd-gl3590-v2-1-073514bf9ed5@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260323-rb3gen2-upd-gl3590-v2-1-073514bf9ed5@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Authority-Analysis: v=2.4 cv=GIIF0+NK c=1 sm=1 tr=0 ts=69c25b50 cx=c_pps a=qKBjSQ1v91RyAK45QCPf5w==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=DJpcGTmdVt4CTyJn9g5Z:22 a=EUspDBNiAAAA:8 a=A4rZZFmT0VfpKD8yd_UA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=NFOGd7dJGGMPyQGDc5-O:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzI0MDA3NiBTYWx0ZWRfX4Z4s6b1yipTR Xe8oYbiw4rB6keiG8DOOFWKNcJ+ZGfinaT2VUdeQLqKXzvqpQ+Gws0shyVQts7rsBLCGj93AWvZ YYoNd9cquijb1HyoGC2ZnPeMMNeZC3GFsYdp6OF2D2h3QeXVDOxbpSxds2RLCTLzQy+hEBuAI70 zBMSllTDq1Ek0KWmZxUN0uwXZaj5z3tqRuJhdZnhU8ygc3SNnvPG3aAD8SAEcZOwv1353e37v92 Yt5rYqgUqYD8U0kVLB/48N2y4lYNRdqXJLgR2qn/aZkqYx9io4U6cQmuHQ4uFETvbXm9hpFr2c4 txEVBgMIDVeQSBgR5atvuICo1UwCoDE2c10HUB1eUjwFFT3PcPjmlPK5N9K+FERN3+4z67K4awB 9y249D3QDPTaHJp+hZ/A7zdM9zf0eAbkAkF33JOjlBjJ7ZE6Y1hoJP+S5TPJcGjqHn7OW5axbu6 dYwfLh4YRjjiDL96MOg== X-Proofpoint-GUID: cTuxBhyJftkLonPQOKIRDbl1srP8La4k X-Proofpoint-ORIG-GUID: cTuxBhyJftkLonPQOKIRDbl1srP8La4k X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-24_02,2026-03-23_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 adultscore=0 malwarescore=0 priorityscore=1501 phishscore=0 impostorscore=0 lowpriorityscore=0 clxscore=1015 suspectscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603240076 On 3/24/26 3:32 AM, Bjorn Andersson wrote: > The QCS6490 Rb3Gen2 has a Renesas μPD720201 XHCI controller hanging off > the TC9563 PCIe switch, on this a Genesys Logic GL3590 USB hub provides > two USB Type-A ports and an ASIX AX88179 USB 3.0 Gigabit Ethernet > interface. > > The Renesas chip is powered by two regulators controlled through PM7250B > GPIOs 1 and 4, and the power/reset pin is pulled down by PM8350C GPIO 4. > The Genesys chip power is always-on, but the reset pin is controlled > through TLMM GPIO 162. > > Describe the Renesas chip on the PCIe bus, with supplies and reset, to > allow it to be brought out of reset and discovered. Then describe the > two peers of the USB hub, with its reset GPIO, to allow this to be > brought out of reset. > > The USB Type-A connectors are not described, as they are in no regard > controlled by the operating system. > > Signed-off-by: Bjorn Andersson > --- > Dependencies has now landed, so this provides USB Type-A and Ethernet > support (when renesas_usb_fw.mem) is present. > > Missing from the RFC/v1 description was the mentioning that unless I > pass "pcie_aspm=off" to the kernel, the Renesas controller fails with: > > xhci-pci-renesas 0001:04:00.0: Abort failed to stop command ring: -110 +Mani another quirky piece of hw, perhaps? Maybe +Krishna has the datasheet. does the it talk about ASPM? Konrad