perf/hisi-uncore: Assign parents for event_source devices

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/
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Yicong Yang <yangyicong@hisilicon.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20240412161057.14099-4-Jonathan.Cameron@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>

diff --git a/drivers/perf/hisilicon/hisi_uncore_pmu.c b/drivers/perf/hisilicon/hisi_uncore_pmu.c
index ccc9191ad1b60ba29536e3238bdf2c995d223bb1..a60e4c9660987664d322bcc3edd1fcdb469c75bf 100644 (file)
--- a/drivers/perf/hisilicon/hisi_uncore_pmu.c
+++ b/drivers/perf/hisilicon/hisi_uncore_pmu.c
@@ -536,6 +536,7 @@ void hisi_pmu_init(struct hisi_pmu *hisi_pmu, struct module *module)
        struct pmu *pmu = &hisi_pmu->pmu;
 
        pmu->module             = module;
+       pmu->parent             = hisi_pmu->dev;
        pmu->task_ctx_nr        = perf_invalid_context;
        pmu->event_init         = hisi_uncore_pmu_event_init;
        pmu->pmu_enable         = hisi_uncore_pmu_enable;