From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Date: Fri, 12 Apr 2024 16:10:39 +0000 (+0100)
Subject: perf/riscv: Assign parents for event_source devices
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=50650e5f3186dcd3cc291b515022eab281256688;p=linux.git

perf/riscv: 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 appropriate platform devices.

Link: https://lore.kernel.org/linux-cxl/ZCLI9A40PJsyqAmq@kroah.com/
Cc: Atish Patra <atishp@atishpatra.org>
CC: Anup Patel <anup@brainfault.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20240412161057.14099-13-Jonathan.Cameron@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
---

diff --git a/drivers/perf/riscv_pmu_legacy.c b/drivers/perf/riscv_pmu_legacy.c
index fa0bccf4edf2e..04487ad7fba0b 100644
--- a/drivers/perf/riscv_pmu_legacy.c
+++ b/drivers/perf/riscv_pmu_legacy.c
@@ -136,6 +136,7 @@ static int pmu_legacy_device_probe(struct platform_device *pdev)
 	pmu = riscv_pmu_alloc();
 	if (!pmu)
 		return -ENOMEM;
+	pmu->pmu.parent = &pdev->dev;
 	pmu_legacy_init(pmu);
 
 	return 0;
diff --git a/drivers/perf/riscv_pmu_sbi.c b/drivers/perf/riscv_pmu_sbi.c
index 5aef5a8737b23..82636273d7265 100644
--- a/drivers/perf/riscv_pmu_sbi.c
+++ b/drivers/perf/riscv_pmu_sbi.c
@@ -1080,6 +1080,7 @@ static int pmu_sbi_device_probe(struct platform_device *pdev)
 	}
 
 	pmu->pmu.attr_groups = riscv_pmu_attr_groups;
+	pmu->pmu.parent = &pdev->dev;
 	pmu->cmask = cmask;
 	pmu->ctr_start = pmu_sbi_ctr_start;
 	pmu->ctr_stop = pmu_sbi_ctr_stop;