perf/xgene: Assign parents for event_source devices

Currently all these devices appear directly under /sys/devices/
Only root busses should appear there, so instead assign the pmu->dev
parents to be the hardware related struct device.

Link: https://lore.kernel.org/linux-cxl/ZCLI9A40PJsyqAmq@kroah.com/
Cc: Khuong Dinh <khuong@os.amperecomputing.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20240412161057.14099-10-Jonathan.Cameron@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>

diff --git a/drivers/perf/xgene_pmu.c b/drivers/perf/xgene_pmu.c
index 0d49343d704b7c971b1616527f4a0190d9f89f19..8823b4c6b55613bc3370790fce7139ab28aa6c20 100644 (file)
--- a/drivers/perf/xgene_pmu.c
+++ b/drivers/perf/xgene_pmu.c
@@ -1102,6 +1102,7 @@ static int xgene_init_perf(struct xgene_pmu_dev *pmu_dev, char *name)
 
        /* Perf driver registration */
        pmu_dev->pmu = (struct pmu) {
+               .parent         = pmu_dev->parent->dev,
                .attr_groups    = pmu_dev->attr_groups,
                .task_ctx_nr    = perf_invalid_context,
                .pmu_enable     = xgene_perf_pmu_enable,