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Tue, 21 Jul 2026 07:28:22 -0700 (PDT) X-Received: by 2002:a05:622a:1cc5:b0:51c:d8f:d77a with SMTP id d75a77b69052e-526721355b4mr27218231cf.1.1784644102052; Tue, 21 Jul 2026 07:28:22 -0700 (PDT) Received: from [192.168.120.193] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c1724f50b72sm610712066b.48.2026.07.21.07.28.19 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 21 Jul 2026 07:28:21 -0700 (PDT) Message-ID: <70349e4e-12d4-4cc4-91dd-9e5d45d3427b@oss.qualcomm.com> Date: Tue, 21 Jul 2026 16:28:18 +0200 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] arm64: dts: qcom: hamoa-iot-evk: switch typec0 to PS8830 retimer To: Xin Liu , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, tingwei.zhang@oss.qualcomm.com, jie.gan@oss.qualcomm.com, Guodong Xu , Milosz Wasilewski References: <20260721074145.1534100-1-xin.liu@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260721074145.1534100-1-xin.liu@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Proofpoint-ORIG-GUID: qpGPh1NOKlsk_2p3wZ4Bih7tyllSQXrH X-Proofpoint-Spam-Info: AW1haW4tMjYwNzIxMDE1MyBTYWx0ZWRfX4TWrjpgvwc3U tSnS1+tuSeEOz6yunumkkNp9WcmlGrGLy5x1AL27lTYYmdI5hMZFE34x8/XwPqHfqoTBmVBjkuH iD9v+GLQzRFc49C31t+0UkQcVzcnxIc= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzIxMDE1MyBTYWx0ZWRfX7Mkh/2uZ56U3 QnlN95F03O4hFyKtZ1hEGBmZPb23wVOpQnYNFUTwKyxqZlyF5UeoPH/VFu6rTin52DfPrs9DoyC 6k4VBk8TL1yZAobOuxZyXVj1R8dr4/zx3dJNVnLPp6ovsR+wDo50aHGqjSVDKap7NhdPv/FwJ2k bS/qbHSRHg7OYU9OlBu8vP9kBRSkha24wfiJFbzRrVuEV/3CXH0UkdMWFNxfgfFFCHu9dXbUMLl taCsuywZd2xiubJlqczmPrcxVJGRX2nuryfv3kw9hsP5FGx9iZ9O3qFiIBDyxlGFTRUx6GD+yOF SA/bx3IxgxjbyWSRVu9mn7tm6cKUlW50rHeqjLgFPUhawJG6qFyjpyNxXuT5MShZt3l8RgE4W5O CcyUleKyR/1I1inAhtnsv0i9Kse8YYLLs3QEUw8ptKxTc2w4ROD/XlArfAo6XqiE2o7+g2GIQuA A99dHkzxYN7CMJDu91g== X-Proofpoint-GUID: qpGPh1NOKlsk_2p3wZ4Bih7tyllSQXrH X-Authority-Analysis: v=2.4 cv=Cr6PtH4D c=1 sm=1 tr=0 ts=6a5f8207 cx=c_pps a=WeENfcodrlLV9YRTxbY/uA==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yx91gb_oNiZeI1HMLzn7:22 a=DqTL_hbh-M5QnLuVPNcA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=kacYvNCVWA4VmyqE58fU:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-21_03,2026-07-20_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 adultscore=0 impostorscore=0 lowpriorityscore=0 spamscore=0 phishscore=0 clxscore=1015 suspectscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607210153 On 7/21/26 9:41 AM, Xin Liu wrote: > The Hamoa IoT EVK populates a Parade PS8830 retimer on I2C3 for the > TypeC 0 port to support USB3.0 and SBU muxing. Describe the PS8830 and > route typec0 through it. > > The vreg_rtmr0_* rails provisioned for a retimer were already defined > but previously wired to nowhere. They are now consumed by the PS8830, > so drop the "Left unused" comment. > > The FSUSB42 SBU mux chip won't be populated on the final EVK > board, so remove the fsusb42 node and its pinctrl group. Are we sure about that? I inquired about this on a pre-release version of an equivalent patch and never got an answer. For sure there are a number of boards without a retimer, including in our CI (+CC Miłosz).. Konrad