From patchwork Fri Apr 12 16:10:46 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 13628095 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 BE1BA147C7D; Fri, 12 Apr 2024 16:20:41 +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=1712938843; cv=none; b=h35XrNUmzSH6cBV2X0RxnoZZAlFIC61p8Ovf7/FheNfwobI52X5VBHq6D4/jnjs4IlsH75eqJ2jIT+mAi8A4Nw2gFiaHF/kjokL0aNxeU3sF7CA3Cg5eYHcsOkEd8fRuIZoPh2TVah+vyA6GgpzLgMzzGyg9rhMnrJQh6IXBOso= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712938843; c=relaxed/simple; bh=b2qFMR2+iwr3b0+J+yiyFFDMF9xfEF73dqW/f28sbH4=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=IvhuMdHpmCCaOzd+KDfpY5nVEnsbnVUid5oLq1YmRzpIYY03K+Myv1Jd5+KmCsFatab8R7UjLdpy/wqEAW6KYpkb8Uzi1v3vDVLu6J9K9gRVI3AN9144vQr68cnlrOtq9qslPQ/iVr3fluQ3/OYg+rTH5BON7k4OLHtrMv5X1XA= 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 [172.18.186.231]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4VGMFT4qnKz6J9hN; Sat, 13 Apr 2024 00:18:53 +0800 (CST) Received: from lhrpeml500005.china.huawei.com (unknown [7.191.163.240]) by mail.maildlp.com (Postfix) with ESMTPS id 9A2321400CF; Sat, 13 Apr 2024 00:20:39 +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 17:20:38 +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 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> 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 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 Signed-off-by: Jonathan Cameron --- 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,