perf/arm-dmc620: Assign parents for event_source device

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@kroah.com/
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20240412161057.14099-21-Jonathan.Cameron@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>

diff --git a/drivers/perf/arm_dmc620_pmu.c b/drivers/perf/arm_dmc620_pmu.c
index 8a81be2dd5ecf56fe82f1d5e0e823c220942a255..2ec96e204c403ec7b3403561433ccddf97fbb743 100644 (file)
--- a/drivers/perf/arm_dmc620_pmu.c
+++ b/drivers/perf/arm_dmc620_pmu.c
@@ -673,6 +673,7 @@ static int dmc620_pmu_device_probe(struct platform_device *pdev)
 
        dmc620_pmu->pmu = (struct pmu) {
                .module = THIS_MODULE,
+               .parent         = &pdev->dev,
                .capabilities   = PERF_PMU_CAP_NO_EXCLUDE,
                .task_ctx_nr    = perf_invalid_context,
                .event_init     = dmc620_pmu_event_init,