Re: [PATCH 07/32] perf/amlogic: Assign parents for event_source devices

From: Jiucheng Xu
Date: Sun Apr 09 2023 - 22:00:16 EST



On 2023/4/4 21:42, Jonathan Cameron wrote:
[ EXTERNAL EMAIL ]

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 platform device.

Link: https://lore.kernel.org/linux-cxl/ZCLI9A40PJsyqAmq@xxxxxxxxx/
Cc: Jiucheng Xu <jiucheng.xu@xxxxxxxxxxx>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
---
drivers/perf/amlogic/meson_ddr_pmu_core.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/perf/amlogic/meson_ddr_pmu_core.c b/drivers/perf/amlogic/meson_ddr_pmu_core.c
index b84346dbac2c..e0d3e87457e0 100644
--- a/drivers/perf/amlogic/meson_ddr_pmu_core.c
+++ b/drivers/perf/amlogic/meson_ddr_pmu_core.c
@@ -490,6 +490,7 @@ int meson_ddr_pmu_create(struct platform_device *pdev)
*pmu = (struct ddr_pmu) {
.pmu = {
.module = THIS_MODULE,
+ .parent = &pdev->dev,
Reviewed-by: Jiucheng Xu <jiucheng.xu@xxxxxxxxxxx
.capabilities = PERF_PMU_CAP_NO_EXCLUDE,
.task_ctx_nr = perf_invalid_context,
.attr_groups = attr_groups,