From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Date: Fri, 12 Apr 2024 16:10:43 +0000 (+0100)
Subject: perf/arm_pmu: Assign parents for event_source devices
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=7bf75431a9ba1b3c2ededbcf08dca023786337fc;p=linux.git

perf/arm_pmu: 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/
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20240412161057.14099-17-Jonathan.Cameron@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
---

diff --git a/drivers/perf/arm_pmu_platform.c b/drivers/perf/arm_pmu_platform.c
index 3596db36cbff4..4b1a9a92ea117 100644
--- a/drivers/perf/arm_pmu_platform.c
+++ b/drivers/perf/arm_pmu_platform.c
@@ -196,6 +196,7 @@ int arm_pmu_device_probe(struct platform_device *pdev,
 	if (!pmu)
 		return -ENOMEM;
 
+	pmu->pmu.parent = &pdev->dev;
 	pmu->plat_device = pdev;
 
 	ret = pmu_parse_irqs(pmu);