From patchwork Sat Oct 8 11:56:16 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yang Yingliang X-Patchwork-Id: 1687733 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by legolas.ozlabs.org (Postfix) with ESMTP id 4Ml3BX0Tpwz1yqk for ; Sat, 8 Oct 2022 22:40:03 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229672AbiJHLkB (ORCPT ); Sat, 8 Oct 2022 07:40:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:32832 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229569AbiJHLj6 (ORCPT ); Sat, 8 Oct 2022 07:39:58 -0400 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D6D96A459 for ; Sat, 8 Oct 2022 04:39:51 -0700 (PDT) Received: from dggpemm500022.china.huawei.com (unknown [172.30.72.53]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4Ml34Y2SZSzHtgm; Sat, 8 Oct 2022 19:34:53 +0800 (CST) Received: from dggpemm500007.china.huawei.com (7.185.36.183) by dggpemm500022.china.huawei.com (7.185.36.162) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Sat, 8 Oct 2022 19:39:49 +0800 Received: from huawei.com (10.175.103.91) by dggpemm500007.china.huawei.com (7.185.36.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Sat, 8 Oct 2022 19:39:49 +0800 From: Yang Yingliang To: CC: , , Subject: [PATCH -next v2 1/2] of/address: introduce of_address_count() helper Date: Sat, 8 Oct 2022 19:56:16 +0800 Message-ID: <20221008115617.3583890-2-yangyingliang@huawei.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221008115617.3583890-1-yangyingliang@huawei.com> References: <20221008115617.3583890-1-yangyingliang@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.103.91] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To dggpemm500007.china.huawei.com (7.185.36.183) X-CFilter-Loop: Reflected X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Introduce of_address_count() helper to count the IO resources instead of open-coding it. Signed-off-by: Yang Yingliang --- include/linux/of_address.h | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/include/linux/of_address.h b/include/linux/of_address.h index 45598dbec269..265f26eeaf6b 100644 --- a/include/linux/of_address.h +++ b/include/linux/of_address.h @@ -154,4 +154,15 @@ static inline const __be32 *of_get_pci_address(struct device_node *dev, int bar_ return __of_get_address(dev, -1, bar_no, size, flags); } +static inline int of_address_count(struct device_node *np) +{ + struct resource res; + int count = 0; + + while (of_address_to_resource(np, count, &res) == 0) + count++; + + return count; +} + #endif /* __OF_ADDRESS_H */