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Tue, 17 Feb 2026 02:34:05 -0800 (PST) Received: from QCOM-eG0v1AUPpu.qualcomm.com ([2a01:e0a:82c:5f0:7155:d80c:d125:8e25]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-43796ac8d46sm34460840f8f.32.2026.02.17.02.34.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 17 Feb 2026 02:34:05 -0800 (PST) From: Loic Poulain To: heikki.krogerus@linux.intel.com, gregkh@linuxfoundation.org Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, johan@kernel.org, venkat.jayaraman@intel.com, pooja.katiyar@intel.com, dmitry.baryshkov@oss.qualcomm.com, Loic Poulain Subject: [PATCH] usb: typec: ucsi: Invoke ucsi_run_command tracepoint Date: Tue, 17 Feb 2026 11:34:03 +0100 Message-Id: <20260217103403.1956-1-loic.poulain@oss.qualcomm.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Authority-Analysis: v=2.4 cv=bqVBxUai c=1 sm=1 tr=0 ts=6994441f cx=c_pps a=qKBjSQ1v91RyAK45QCPf5w==:117 a=xqWC_Br6kY4A:10 a=HzLeVaNsDn8A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=Mpw57Om8IfrbqaoTuvik:22 a=GgsMoib0sEa3-_RKJdDe:22 a=EUspDBNiAAAA:8 a=Tvdu5u-jWjcwP2ZWDAEA:9 a=0bXxn9q0MV6snEgNplNhOjQmxlI=:19 a=NFOGd7dJGGMPyQGDc5-O:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjE3MDA4NyBTYWx0ZWRfX9/Ab1Itv+Rs+ T1Lp/cdU6repk21W6kufhc30tEClLcyUuMwZsqeYSNhR3NVG+0nWVxW2a/UZFdlYlTJMTyp+k98 Es70IxISP9HxrOFjiy9+qT/vEmbKmYj1JeGZtkcTaeTjdsAdbQ2JJWWcZbN/GjnlMIj0SeYOwlv aOP/iWtT+FXjZXTMdjSOvUJC3DxH09xbhWmHnpa6lVm80QgCIFDomHf/UNrp5yOBKYx6tOD0bXu urbmTKVUmsLBqJ2yw+aLxIFTF0SwDZtG3TGQjOfoQ1NJBW4NRzq02OHlHspJ4wwZ7ykP5hRBhMT /0OqZ+omV5l8stBOQafmlMbNdCPXpgALSTD8gpFOjr32EXtWD3CIJmVy+BslPtHN3HOraNHjpEl 9RefQqxjsx54YXHYnLKgpf9NTLTWOPYPdlePH/8I1kMHheOWcRTIy/TCcpx1sN0i5+r6OMuUxLA CldfrZkLptIK5t4VRpQ== X-Proofpoint-GUID: rpx0LyzG6wMVaZsbXsIp1ISKR0OdIchJ X-Proofpoint-ORIG-GUID: rpx0LyzG6wMVaZsbXsIp1ISKR0OdIchJ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-02-17_01,2026-02-16_04,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 impostorscore=0 lowpriorityscore=0 bulkscore=0 priorityscore=1501 spamscore=0 adultscore=0 phishscore=0 clxscore=1015 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2602170087 Content-Type: text/plain; charset="utf-8" The ucsi_run_command trace event is exposed in tracefs, but it never produces any output because the UCSI core never invokes the associated tracepoint. As a result, enabling the event under events/ucsi/ yields no traces, preventing users from inspecting UCSI command sequencing. Wire the tracepoint into the UCSI command path so that commands are properly reported. Example: 50.692342: ucsi_run_command: GET_CONNECTOR_STATUS -> OK (err=3D0) 50.692345: ucsi_connector_change: port0 status: change=3D4800, ... 51.750298: ucsi_run_command: GET_CABLE_PROPERTY -> FAIL (err=3D-5) 51.773360: ucsi_run_command: GET_CONNECTOR_STATUS -> OK (err=3D0) Signed-off-by: Loic Poulain Reviewed-by: Heikki Krogerus --- drivers/usb/typec/ucsi/ucsi.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c index a7b388dc7fa0..965bb7f4e24e 100644 --- a/drivers/usb/typec/ucsi/ucsi.c +++ b/drivers/usb/typec/ucsi/ucsi.c @@ -234,6 +234,8 @@ static int ucsi_send_command_common(struct ucsi *ucsi, = u64 cmd, if (cci & UCSI_CCI_ERROR) ret =3D ucsi_read_error(ucsi, connector_num); =20 + trace_ucsi_run_command(cmd, ret); + mutex_unlock(&ucsi->ppm_lock); return ret; } --=20 2.34.1