From patchwork Fri Aug 18 10:15:40 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jinjie Ruan X-Patchwork-Id: 94172 X-Patchwork-Delegate: hverkuil@xs4all.nl Received: from vger.kernel.org ([23.128.96.18]) by www.linuxtv.org with esmtp (Exim 4.92) (envelope-from ) id 1qWwXQ-003AuW-0E; Fri, 18 Aug 2023 10:17:04 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1358423AbjHRKQc (ORCPT + 1 other); Fri, 18 Aug 2023 06:16:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40906 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1358543AbjHRKQM (ORCPT ); Fri, 18 Aug 2023 06:16:12 -0400 Received: from szxga08-in.huawei.com (szxga08-in.huawei.com [45.249.212.255]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D9E1530C2 for ; Fri, 18 Aug 2023 03:16:07 -0700 (PDT) Received: from kwepemi500008.china.huawei.com (unknown [172.30.72.56]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4RRyR659bxz1GDtN; Fri, 18 Aug 2023 18:14:42 +0800 (CST) Received: from huawei.com (10.90.53.73) by kwepemi500008.china.huawei.com (7.221.188.139) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.31; Fri, 18 Aug 2023 18:16:05 +0800 From: Ruan Jinjie To: , , Patrice Chotard , Mauro Carvalho Chehab CC: Subject: [PATCH -next] media: c8sectpfe: Use the devm_clk_get_enabled() helper function Date: Fri, 18 Aug 2023 18:15:40 +0800 Message-ID: <20230818101541.1129209-1-ruanjinjie@huawei.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-Originating-IP: [10.90.53.73] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To kwepemi500008.china.huawei.com (7.221.188.139) X-CFilter-Loop: Reflected X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_BLOCKED,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: linux-media@vger.kernel.org X-LSpam-Score: -2.4 (--) X-LSpam-Report: No, score=-2.4 required=5.0 tests=BAYES_00=-1.9,HEADER_FROM_DIFFERENT_DOMAINS=0.5,MAILING_LIST_MULTI=-1 autolearn=ham autolearn_force=no With devm_clk_get_enabled() the call to clk_disable_unprepare() can be dropped from the error path and the remove callback. Signed-off-by: Ruan Jinjie Reviewed-by: Patrice Chotard --- .../st/sti/c8sectpfe/c8sectpfe-core.c | 26 +++++-------------- 1 file changed, 7 insertions(+), 19 deletions(-) diff --git a/drivers/media/platform/st/sti/c8sectpfe/c8sectpfe-core.c b/drivers/media/platform/st/sti/c8sectpfe/c8sectpfe-core.c index 5dc1f908b49b..e4cf27b5a072 100644 --- a/drivers/media/platform/st/sti/c8sectpfe/c8sectpfe-core.c +++ b/drivers/media/platform/st/sti/c8sectpfe/c8sectpfe-core.c @@ -695,16 +695,10 @@ static int c8sectpfe_probe(struct platform_device *pdev) platform_set_drvdata(pdev, fei); - fei->c8sectpfeclk = devm_clk_get(dev, "c8sectpfe"); + fei->c8sectpfeclk = devm_clk_get_enabled(dev, "c8sectpfe"); if (IS_ERR(fei->c8sectpfeclk)) { - dev_err(dev, "c8sectpfe clk not found\n"); - return PTR_ERR(fei->c8sectpfeclk); - } - - ret = clk_prepare_enable(fei->c8sectpfeclk); - if (ret) { dev_err(dev, "Failed to enable c8sectpfe clock\n"); - return ret; + return PTR_ERR(fei->c8sectpfeclk); } /* to save power disable all IP's (on by default) */ @@ -722,7 +716,7 @@ static int c8sectpfe_probe(struct platform_device *pdev) 0, "c8sectpfe-idle-irq", fei); if (ret) { dev_err(dev, "Can't register c8sectpfe-idle-irq IRQ.\n"); - goto err_clk_disable; + return ret; } ret = devm_request_irq(dev, fei->error_irq, @@ -730,7 +724,7 @@ static int c8sectpfe_probe(struct platform_device *pdev) "c8sectpfe-error-irq", fei); if (ret) { dev_err(dev, "Can't register c8sectpfe-error-irq IRQ.\n"); - goto err_clk_disable; + return ret; } fei->tsin_count = of_get_child_count(np); @@ -739,16 +733,14 @@ static int c8sectpfe_probe(struct platform_device *pdev) fei->tsin_count > fei->hw_stats.num_ib) { dev_err(dev, "More tsin declared than exist on SoC!\n"); - ret = -EINVAL; - goto err_clk_disable; + return -EINVAL; } fei->pinctrl = devm_pinctrl_get(dev); if (IS_ERR(fei->pinctrl)) { dev_err(dev, "Error getting tsin pins\n"); - ret = PTR_ERR(fei->pinctrl); - goto err_clk_disable; + return PTR_ERR(fei->pinctrl); } for_each_child_of_node(np, child) { @@ -859,7 +851,7 @@ static int c8sectpfe_probe(struct platform_device *pdev) if (ret) { dev_err(dev, "c8sectpfe_tuner_register_frontend failed (%d)\n", ret); - goto err_clk_disable; + return ret; } c8sectpfe_debugfs_init(fei); @@ -868,8 +860,6 @@ static int c8sectpfe_probe(struct platform_device *pdev) err_node_put: of_node_put(child); -err_clk_disable: - clk_disable_unprepare(fei->c8sectpfeclk); return ret; } @@ -903,8 +893,6 @@ static void c8sectpfe_remove(struct platform_device *pdev) if (readl(fei->io + SYS_OTHER_CLKEN)) writel(0, fei->io + SYS_OTHER_CLKEN); - - clk_disable_unprepare(fei->c8sectpfeclk); }