Re: [PATCH v2 16/30] perf/arm_pmu: Assign parents for event_source devices

Suzuki K Poulose <suzuki.poulose@xxxxxxx> · Tue, 16 Apr 2024 10:36:49 +0100

On 12/04/2024 17:10, Jonathan Cameron wrote:
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@xxxxxxxxx/
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
---
  drivers/perf/arm_pmu_platform.c | 1 +
  1 file changed, 1 insertion(+)

diff --git a/drivers/perf/arm_pmu_platform.c b/drivers/perf/arm_pmu_platform.c
index 3596db36cbff..4b1a9a92ea11 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);


Reviewed-by: Suzuki K Poulose <suzuki.poulose@xxxxxxx>








