Hi Ahmad, On Wed, Jun 17, 2026 at 10:03:04PM +0200, Ahmad Fatoum wrote: > Some Type-C controllers toggle muxes themselves. Other controllers like > the TUSB320 report the mode to the host, so it can control the muxes. > > To improve debuggability of both kinds of drivers, add a trace point that > can be used to keep track of the mode being set inside the Type-C > framework: > > echo 1 > /sys/kernel/debug/tracing/events/typec/typec_mode/enable > > Signed-off-by: Ahmad Fatoum <[email protected]> > --- > MAINTAINERS | 1 + > drivers/usb/typec/class.c | 9 ++++++++- > include/trace/events/typec.h | 36 ++++++++++++++++++++++++++++++++++++ > 3 files changed, 45 insertions(+), 1 deletion(-) > > diff --git a/MAINTAINERS b/MAINTAINERS > index c8d4b913f26c..ddd59e5e6eaf 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -27753,6 +27753,7 @@ F: Documentation/ABI/testing/sysfs-class-typec > F: Documentation/driver-api/usb/typec.rst > F: drivers/usb/typec/ > F: include/linux/usb/typec.h > +F: include/trace/events/typec*.h > > USB TYPEC INTEL PMC MUX DRIVER > M: Heikki Krogerus <[email protected]> > diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c > index 0977581ad1b6..9316d067f19a 100644 > --- a/drivers/usb/typec/class.c > +++ b/drivers/usb/typec/class.c > @@ -20,6 +20,9 @@ > #include "class.h" > #include "pd.h" > > +#define CREATE_TRACE_POINTS > +#include <trace/events/typec.h>
Those should probable go to drivers/usb/typec/trace.c and then you need add something like this to drivers/usb/typec/Makefile: obj-$(CONFIG_TYPEC) += typec.o typec-y := class.o mux.o bus.o pd.o retimer.o mode_selection.o typec-$(CONFIG_ACPI) += port-mapper.o +typec-$(CONFIG_TRACING) += trace.o obj-$(CONFIG_TYPEC) += altmodes/ obj-$(CONFIG_TYPEC_TCPM) += tcpm/ obj-$(CONFIG_TYPEC_UCSI) += ucsi/ Thanks, -- heikki
