Received-SPF: pass (google.com: domain of linux-kernel+bounces-143058-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.199.223 as permitted sender) client-ip=147.75.199.223;
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
To: Mark Rutland <mark.rutland@arm.com>, Peter Zijlstra
	<peterz@infradead.org>, Ingo Molnar <mingo@redhat.com>, Arnaldo Carvalho de
 Melo <acme@kernel.org>, Will Deacon <will@kernel.org>,
	<linux-kernel@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org>,
	<gregkh@linuxfoundation.org>
CC: <linuxarm@huawei.com>, Shaokun Zhang <zhangshaokun@hisilicon.com>, Yicong
 Yang <yangyicong@hisilicon.com>, Jiucheng Xu <jiucheng.xu@amlogic.com>,
	Khuong Dinh <khuong@os.amperecomputing.com>, Atish Patra
	<atishp@atishpatra.org>, Anup Patel <anup@brainfault.org>, Andy Gross
	<agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>, Frank Li
	<Frank.li@nxp.com>, Shuai Xue <xueshuai@linux.alibaba.com>, Vineet Gupta
	<vgupta@kernel.org>, Shawn Guo <shawnguo@kernel.org>, Fenghua Yu
	<fenghua.yu@intel.com>, Dave Jiang <dave.jiang@intel.com>, Wu Hao
	<hao.wu@intel.com>, Tom Rix <trix@redhat.com>, <linux-fpga@vger.kernel.org>,
	Suzuki K Poulose <suzuki.poulose@arm.com>, Liang Kan
	<kan.liang@linux.intel.com>
Subject: [PATCH v2 19/30] perf/arm-ccn: Assign parents for event_source device
Date: Fri, 12 Apr 2024 17:10:46 +0100
Message-ID: <20240412161057.14099-20-Jonathan.Cameron@huawei.com>
In-Reply-To: <20240412161057.14099-1-Jonathan.Cameron@huawei.com>
References: <20240412161057.14099-1-Jonathan.Cameron@huawei.com>
Precedence: bulk
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Content-Type: text/plain

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/
Acked-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
 drivers/perf/arm-ccn.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/perf/arm-ccn.c b/drivers/perf/arm-ccn.c
index 641471bd5eff..f4495ff6525f 100644
--- a/drivers/perf/arm-ccn.c
+++ b/drivers/perf/arm-ccn.c
@@ -1265,6 +1265,7 @@ static int arm_ccn_pmu_init(struct arm_ccn *ccn)
 	/* Perf driver registration */
 	ccn->dt.pmu = (struct pmu) {
 		.module = THIS_MODULE,
+		.parent = ccn->dev,
 		.attr_groups = arm_ccn_pmu_attr_groups,
 		.task_ctx_nr = perf_invalid_context,
 		.event_init = arm_ccn_pmu_event_init,
-- 
2.39.2