Currently the PMU device appears directly under /sys/devices/ Only root busses should appear there, so instead assign the pmu->dev parent to be the platform device. Link: https://lore.kernel.org/linux-cxl/ZCLI9A40PJsyqAmq@xxxxxxxxx/ Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> --- drivers/perf/arm-ccn.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/perf/arm-ccn.c b/drivers/perf/arm-ccn.c index 728d13d8e98a..dc8b0dcb436e 100644 --- a/drivers/perf/arm-ccn.c +++ b/drivers/perf/arm-ccn.c @@ -1265,6 +1265,7 @@ static int arm_ccn_pmu_init(struct arm_ccn *ccn) /* Perf driver registration */ ccn->dt.pmu = (struct pmu) { .module = THIS_MODULE, + .parent = ccn->dev, .attr_groups = arm_ccn_pmu_attr_groups, .task_ctx_nr = perf_invalid_context, .event_init = arm_ccn_pmu_event_init, -- 2.37.2
