From patchwork Wed Mar 21 02:54:53 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aisheng Dong X-Patchwork-Id: 10298889 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 7017160386 for ; Wed, 21 Mar 2018 07:55:57 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 61B0D296F6 for ; Wed, 21 Mar 2018 07:55:57 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 55AAC29723; Wed, 21 Mar 2018 07:55:57 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C562E29722 for ; 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vger.kernel.org; dkim=none (message not signed) header.d=none; vger.kernel.org; dmarc=fail action=none header.from=nxp.com; Received-SPF: Fail (protection.outlook.com: domain of nxp.com does not designate 192.88.168.50 as permitted sender) receiver=protection.outlook.com; client-ip=192.88.168.50; helo=tx30smr01.am.freescale.net; Received: from tx30smr01.am.freescale.net (192.88.168.50) by BY2FFO11FD006.mail.protection.outlook.com (10.1.14.127) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.20.527.18 via Frontend Transport; Wed, 21 Mar 2018 07:55:43 +0000 Received: from b29396-OptiPlex-7040.ap.freescale.net (b29396-OptiPlex-7040.ap.freescale.net [10.192.242.1]) by tx30smr01.am.freescale.net (8.14.3/8.14.0) with ESMTP id w2L2swcR020357; Tue, 20 Mar 2018 19:55:15 -0700 From: Dong Aisheng To: CC: , , , , , , , , , Dong Aisheng , Stephen Boyd Subject: [PATCH V2 3/4] clk: add managed version of clk_bulk_get_all Date: Wed, 21 Mar 2018 10:54:53 +0800 Message-ID: <1521600894-29919-4-git-send-email-aisheng.dong@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1521600894-29919-1-git-send-email-aisheng.dong@nxp.com> References: <1521600894-29919-1-git-send-email-aisheng.dong@nxp.com> X-EOPAttributedMessage: 0 X-Matching-Connectors: 131660925450075236; 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Ip=[192.88.168.50]; Helo=[tx30smr01.am.freescale.net] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR03MB2767 Sender: linux-clk-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch introduces the managed version of clk_bulk_get_all. Cc: Michael Turquette Cc: Stephen Boyd Signed-off-by: Dong Aisheng --- v1->v2: * new patch --- drivers/clk/clk-devres.c | 24 ++++++++++++++++++++++++ include/linux/clk.h | 23 +++++++++++++++++++++++ 2 files changed, 47 insertions(+) diff --git a/drivers/clk/clk-devres.c b/drivers/clk/clk-devres.c index d854e26..6d3ca5e 100644 --- a/drivers/clk/clk-devres.c +++ b/drivers/clk/clk-devres.c @@ -70,6 +70,30 @@ int __must_check devm_clk_bulk_get(struct device *dev, int num_clks, } EXPORT_SYMBOL_GPL(devm_clk_bulk_get); +int __must_check devm_clk_bulk_get_all(struct device *dev, + struct clk_bulk_data **clks) +{ + struct clk_bulk_devres *devres; + int ret; + + devres = devres_alloc(devm_clk_bulk_release, + sizeof(*devres), GFP_KERNEL); + if (!devres) + return -ENOMEM; + + ret = clk_bulk_get_all(dev, clks); + if (ret > 0) { + devres->clks = *clks; + devres->num_clks = ret; + devres_add(dev, devres); + } else { + devres_free(devres); + } + + return ret; +} +EXPORT_SYMBOL_GPL(devm_clk_bulk_get_all); + static int devm_clk_match(struct device *dev, void *res, void *data) { struct clk **c = res; diff --git a/include/linux/clk.h b/include/linux/clk.h index a76fdff..fe48e01 100644 --- a/include/linux/clk.h +++ b/include/linux/clk.h @@ -313,6 +313,22 @@ int __must_check clk_bulk_get_all(struct device *dev, */ int __must_check devm_clk_bulk_get(struct device *dev, int num_clks, struct clk_bulk_data *clks); +/** + * devm_clk_bulk_get_all - managed get multiple clk consumers + * @dev: device for clock "consumer" + * @clks: pointer to the clk_bulk_data table of consumer + * + * Returns a positive value for the number of clocks obtained while the + * clock references are stored in the clk_bulk_data table in @clks field. + * Returns 0 if there're none and a negative value if something failed. + * + * This helper function allows drivers to get several clk + * consumers in one operation with management, the clks will + * automatically be freed when the device is unbound. + */ + +int __must_check devm_clk_bulk_get_all(struct device *dev, + struct clk_bulk_data **clks); /** * devm_clk_get - lookup and obtain a managed reference to a clock producer. @@ -658,6 +674,13 @@ static inline int __must_check devm_clk_bulk_get(struct device *dev, int num_clk return 0; } +static inline int __must_check devm_clk_bulk_get_all(struct device *dev, + struct clk_bulk_data **clks); +{ + + return 0; +} + static inline struct clk *devm_get_clk_from_child(struct device *dev, struct device_node *np, const char *con_id) {