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Tue, 24 Mar 2026 02:55:52 -0700 (PDT) X-Received: by 2002:a05:7022:2224:b0:128:ceac:6db1 with SMTP id a92af1059eb24-12a726caecemr7430217c88.28.1774346151966; Tue, 24 Mar 2026 02:55:51 -0700 (PDT) Received: from [10.218.1.199] ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-12a733dd8c0sm10952644c88.5.2026.03.24.02.55.47 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 24 Mar 2026 02:55:51 -0700 (PDT) Message-ID: <0af07be1-ec91-4c18-a7b2-ee1ba5dc9e78@oss.qualcomm.com> Date: Tue, 24 Mar 2026 15:25:45 +0530 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] arm64: dts: qcom: qcs6490-rb3gen2: Enable uPD720201 and GL3590 To: Konrad Dybcio , Bjorn Andersson , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , krishna.chundru@oss.qualcomm.com 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> <774ef0b6-e3c9-4613-967f-617ff03adb7c@oss.qualcomm.com> Content-Language: en-US From: Krishna Kurapati In-Reply-To: <774ef0b6-e3c9-4613-967f-617ff03adb7c@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzI0MDA3OSBTYWx0ZWRfX1IIFBuXD6WXz 2EO63l9pxa0ySJ9ZQRNuesjJDJO73wuXM1MmMJ38we1ZeFY19CAncPkRJ3/mM2YGBE0+jRKeTOy eIcfB4lTgNpN3F0y/3e1mKtEvAUi0Re8cVcKapbE/xSRx3y/thmnl/zRDzaCujTueFc3rEReDoV BUAYRcv24NU32Xko7NTesTp/MuiGKG4wSRKHgHFNUSmttnNauwkLx41PA9JRP+qkoqhUZ1JPl1c jQLXa2y7i7eoG4qfMw3dY1l1x+djR4db8nJZvLrklxV1Am5PqlnbDuWP2qY+/gjQGw/e4p/OTja jq6rBgtLsWZ8ar3L8kEnrcY/3Qp+ZWyqi0ZVZZCfVgOpUZSTowU2+CKPbHfRe1AeMnIS1HVX5On eAmzW5HT9q6vy+YtnjCqrKftfRVG+SNMVhBgz1/jGEVYnccaswWxC0JYBgRxn5ZQLkFur+uHxAy xJroTtP8WeKxAKgXOEQ== X-Proofpoint-GUID: VOhyCGYo9j5bcuLxOlnG1pR5IPSM6I4I X-Proofpoint-ORIG-GUID: VOhyCGYo9j5bcuLxOlnG1pR5IPSM6I4I X-Authority-Analysis: v=2.4 cv=I+pohdgg c=1 sm=1 tr=0 ts=69c25fa9 cx=c_pps a=wEP8DlPgTf/vqF+yE6f9lg==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=eoimf2acIAo5FJnRuUoq:22 a=EUspDBNiAAAA:8 a=mkSd36kOS-caLY2HFoEA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=bBxd6f-gb0O0v-kibOvt:22 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 clxscore=1015 impostorscore=0 suspectscore=0 lowpriorityscore=0 bulkscore=0 phishscore=0 spamscore=0 priorityscore=1501 malwarescore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603240079 On 3/24/2026 3:07 PM, Konrad Dybcio wrote: > 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? > For PCIe adding, Krishna Chaitanya to thread.