From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 68EFFC83F17 for ; Fri, 18 Jul 2025 12:12:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Subject:CC:To: From:Date:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Vv5TWpEB6gsRzedrfh2ltipaqB9vueeGyIpbpJfQaY0=; b=f6PmgL1343Jiw60fr6VJ/EhLCg BgdtrKTiCAtKpbRlSSmDm6pjYDg4b3eQbcUpt/kodslNgCXgYBVxjsVLcKOea5eseuFcsC8nlJvFi WH9MdP/EMvXAIh/R1Fvz3hshPSbSz65tLWWUkJzbeZhcagV3KTn8eaAy3J+soyCW7yFxlr32TaSq6 zZmQi50cP0rTKM+d9vXkSMp2hDlOzToPHVLyhWKO5+HSD2ujuYCO/093bN6n5Jlp8xbSIplTnewyO SIOGTn2QU/vGSCBpHvcz9y7hTFzB9N0fm8S6YEsydJ+AG58Wkonzam490oJneSTl5rjeEpqyorcyK RHYV3wvw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1ucjwb-0000000CYDl-0l3E; Fri, 18 Jul 2025 12:12:05 +0000 Received: from frasgout.his.huawei.com ([185.176.79.56]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1ucizM-0000000CP3c-1nMX for linux-arm-kernel@lists.infradead.org; Fri, 18 Jul 2025 11:10:54 +0000 Received: from mail.maildlp.com (unknown [172.18.186.231]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4bk6W943lmz6M4jb; Fri, 18 Jul 2025 19:09:25 +0800 (CST) Received: from frapeml500008.china.huawei.com (unknown [7.182.85.71]) by mail.maildlp.com (Postfix) with ESMTPS id DC339140371; Fri, 18 Jul 2025 19:10:43 +0800 (CST) Received: from localhost (10.203.177.66) by frapeml500008.china.huawei.com (7.182.85.71) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Fri, 18 Jul 2025 13:10:43 +0200 Date: Fri, 18 Jul 2025 12:10:42 +0100 From: Jonathan Cameron To: Alireza Sanaee CC: , , , , , , , , , , , , , , , Subject: Re: [PATCH v3 1/6] of: add infra for finding CPU id from phandle Message-ID: <20250718121042.00007fe5@huawei.com> In-Reply-To: <20250718094848.587-2-alireza.sanaee@huawei.com> References: <20250718094848.587-1-alireza.sanaee@huawei.com> <20250718094848.587-2-alireza.sanaee@huawei.com> X-Mailer: Claws Mail 4.3.0 (GTK 3.24.42; x86_64-w64-mingw32) MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.203.177.66] X-ClientProxiedBy: lhrpeml100003.china.huawei.com (7.191.160.210) To frapeml500008.china.huawei.com (7.182.85.71) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250718_041052_609857_C18C3EAB X-CRM114-Status: UNSURE ( 9.93 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, 18 Jul 2025 10:48:43 +0100 Alireza Sanaee wrote: > Get CPU ID from phandle. Some drivers such as coresight, cti-coresight, > or arm-dsu use this API for finding CPU node in DT. In particular, > drivers do this by getting the CPU device_node through a phandle and > then find the CPU ID using of_cpu_node_to_id(). This commit encapsulates > CPU node finding and improves readability. > > The API interface takes three parameters, 1) node, 2) pointer to > pointer of CPU node, 3) CPU node index. API sets the pointer to the CPU > node and allows the driver to work with the CPU node, for logging > purposes for instance. > > Signed-off-by: Alireza Sanaee Reviewed-by: Jonathan Cameron