From patchwork Fri Apr 12 16:10:42 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 13628091 Received: from frasgout.his.huawei.com (frasgout.his.huawei.com [185.176.79.56]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D0E0C149C4D; Fri, 12 Apr 2024 16:18:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.176.79.56 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712938720; cv=none; b=Fpbwr9OyHUoFrg8ymxAgtZ7T41D1KsRQjjljx7l1NiQ31exZxQfPxPSpAQBCd+EkDBFYDHzNNwYT4/WNx3HS0sjA1PnG2omoSYfIJKsph5HanO+1w8PphZrpqeGC0MlolxGc8hi6qC49vqO0WutjjrZpBhjbj9dV4w314hnnslg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712938720; c=relaxed/simple; bh=RBAeYJgUj+eoRUw+xj4msP667gh3/Ie0CBNOPzMYs3w=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=tBdYMjRThw+LsGQZxFViZOqiAKMue0Jra4Q/K8WZRHTMdaSQgQMxmXfAHeYDsXc1wDgd14tvhB4lFSz8QgCWf9ZZXmsnf82H52rcz5PiG/WVy/gQ1eWMJiPQXRP8j4TLft0MGlLt4mAojkc9dx9H0G5wmYlWsTX8XgNt+6gQ6tI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=185.176.79.56 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.18.186.216]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4VGM7Z277Cz6K96J; Sat, 13 Apr 2024 00:13:46 +0800 (CST) Received: from lhrpeml500005.china.huawei.com (unknown [7.191.163.240]) by mail.maildlp.com (Postfix) with ESMTPS id BBFA5140C98; Sat, 13 Apr 2024 00:18:36 +0800 (CST) Received: from SecurePC-101-06.china.huawei.com (10.122.247.231) by lhrpeml500005.china.huawei.com (7.191.163.240) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.35; Fri, 12 Apr 2024 17:18:36 +0100 From: Jonathan Cameron To: Mark Rutland , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Will Deacon , , , CC: , Shaokun Zhang , Yicong Yang , Jiucheng Xu , Khuong Dinh , Atish Patra , Anup Patel , Andy Gross , Bjorn Andersson , Frank Li , Shuai Xue , Vineet Gupta , Shawn Guo , Fenghua Yu , Dave Jiang , Wu Hao , Tom Rix , , Suzuki K Poulose , Liang Kan Subject: [PATCH v2 15/30] perf/imx_ddr: Assign parents for event_source devices Date: Fri, 12 Apr 2024 17:10:42 +0100 Message-ID: <20240412161057.14099-16-Jonathan.Cameron@huawei.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240412161057.14099-1-Jonathan.Cameron@huawei.com> References: <20240412161057.14099-1-Jonathan.Cameron@huawei.com> Precedence: bulk X-Mailing-List: linux-fpga@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: lhrpeml100003.china.huawei.com (7.191.160.210) To lhrpeml500005.china.huawei.com (7.191.163.240) 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 Signed-off-by: Jonathan Cameron --- 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 4e8fa5a48fcf..1bbdb29743c4 100644 --- a/drivers/perf/fsl_imx8_ddr_perf.c +++ b/drivers/perf/fsl_imx8_ddr_perf.c @@ -651,6 +651,7 @@ 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,