perf/alibaba_uncore: 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/
Reviewed-by: Shuai Xue <xueshuai@linux.alibaba.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20240412161057.14099-18-Jonathan.Cameron@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>

diff --git a/drivers/perf/alibaba_uncore_drw_pmu.c b/drivers/perf/alibaba_uncore_drw_pmu.c
index d4d14b65c4a5337a248b9d7c482208d56870eed2..89dd38343f93ce29dba7b59b033cecbdd852f16d 100644 (file)
--- a/drivers/perf/alibaba_uncore_drw_pmu.c
+++ b/drivers/perf/alibaba_uncore_drw_pmu.c
@@ -709,6 +709,7 @@ static int ali_drw_pmu_probe(struct platform_device *pdev)
 
        drw_pmu->pmu = (struct pmu) {
                .module         = THIS_MODULE,
+               .parent         = &pdev->dev,
                .task_ctx_nr    = perf_invalid_context,
                .event_init     = ali_drw_pmu_event_init,
                .add            = ali_drw_pmu_add,