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usb: typec: ucsi: Invoke ucsi_run_command tracepoint

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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=0)
50.692345: ucsi_connector_change: port0 status: change=4800, ...
51.750298: ucsi_run_command: GET_CABLE_PROPERTY -> FAIL (err=-5)
51.773360: ucsi_run_command: GET_CONNECTOR_STATUS -> OK (err=0)

Signed-off-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260217103403.1956-1-loic.poulain@oss.qualcomm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Loic Poulain 2026-02-17 11:34:03 +01:00 committed by Greg Kroah-Hartman
parent 99df63d20d
commit 78bf06db16
1 changed files with 2 additions and 0 deletions
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2
drivers/usb/typec/ucsi/ucsi.c
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@ -235,6 +235,8 @@ static int ucsi_send_command_common(struct ucsi *ucsi, u64 cmd,
if (cci & UCSI_CCI_ERROR)
ret = ucsi_read_error(ucsi, connector_num);
trace_ucsi_run_command(cmd, ret);
mutex_unlock(&ucsi->ppm_lock);
return ret;
}