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From:   Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Subject: [PATCH 21/32] perf/arm-cmn: Assign parents for event_source device
Date:   Tue, 4 Apr 2023 14:42:14 +0100
Message-ID: <20230404134225.13408-22-Jonathan.Cameron@huawei.com>
In-Reply-To: <20230404134225.13408-1-Jonathan.Cameron@huawei.com>
References: <20230404134225.13408-1-Jonathan.Cameron@huawei.com>
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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>
---
 drivers/perf/arm-cmn.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/perf/arm-cmn.c b/drivers/perf/arm-cmn.c
index c9689861be3f..7731eb0e2a4a 100644
--- a/drivers/perf/arm-cmn.c
+++ b/drivers/perf/arm-cmn.c
@@ -2284,6 +2284,7 @@ static int arm_cmn_probe(struct platform_device *pdev)
 	cmn->cpu = cpumask_local_spread(0, dev_to_node(cmn->dev));
 	cmn->pmu = (struct pmu) {
 		.module = THIS_MODULE,
+		.parent = &pdev->dev,
 		.attr_groups = arm_cmn_attr_groups,
 		.capabilities = PERF_PMU_CAP_NO_EXCLUDE,
 		.task_ctx_nr = perf_invalid_context,
-- 
2.37.2