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From:   Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Subject: [PATCH 16/32] perf/imx_ddr: Assign parents for event_source devices
Date:   Tue, 4 Apr 2023 14:42:09 +0100
Message-ID: <20230404134225.13408-17-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 all this device appear 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/
Cc: Frank Li <Frank.li@nxp.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
 drivers/perf/fsl_imx8_ddr_perf.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/perf/fsl_imx8_ddr_perf.c b/drivers/perf/fsl_imx8_ddr_perf.c
index 5222ba1e79d0..e73b83487bb0 100644
--- a/drivers/perf/fsl_imx8_ddr_perf.c
+++ b/drivers/perf/fsl_imx8_ddr_perf.c
@@ -592,6 +592,7 @@ static int ddr_perf_init(struct ddr_pmu *pmu, void __iomem *base,
 	*pmu = (struct ddr_pmu) {
 		.pmu = (struct pmu) {
 			.module	      = THIS_MODULE,
+			.parent      = dev,
 			.capabilities = PERF_PMU_CAP_NO_EXCLUDE,
 			.task_ctx_nr = perf_invalid_context,
 			.attr_groups = attr_groups,
-- 
2.37.2