From patchwork Fri Aug 18 09:30:17 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Li Zetao X-Patchwork-Id: 13357509 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D6B68C678DC for ; Fri, 18 Aug 2023 09:31:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1359113AbjHRJbD (ORCPT ); Fri, 18 Aug 2023 05:31:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53714 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1359192AbjHRJat (ORCPT ); Fri, 18 Aug 2023 05:30:49 -0400 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 845B93AA6; Fri, 18 Aug 2023 02:30:42 -0700 (PDT) Received: from kwepemi500012.china.huawei.com (unknown [172.30.72.56]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4RRxPq0hvVzVkYK; Fri, 18 Aug 2023 17:28:31 +0800 (CST) Received: from huawei.com (10.90.53.73) by kwepemi500012.china.huawei.com (7.221.188.12) 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 17:30:38 +0800 From: Li Zetao To: , , , , , , , , , , , , CC: , , , , Subject: [PATCH -next 10/11] gpio: xilinx: Use helper function devm_clk_get_optional_enabled() Date: Fri, 18 Aug 2023 17:30:17 +0800 Message-ID: <20230818093018.1051434-11-lizetao1@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230818093018.1051434-1-lizetao1@huawei.com> References: <20230818093018.1051434-1-lizetao1@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.90.53.73] X-ClientProxiedBy: dggems704-chm.china.huawei.com (10.3.19.181) To kwepemi500012.china.huawei.com (7.221.188.12) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org Since commit 7ef9651e9792 ("clk: Provide new devm_clk helpers for prepared and enabled clocks"), devm_clk_get_optional() and clk_prepare_enable() can now be replaced by devm_clk_get_optional_enabled() when the driver enables (and possibly prepares) the clocks for the whole lifetime of the device. Moreover, it is no longer necessary to unprepare and disable the clocks explicitly. Signed-off-by: Li Zetao --- drivers/gpio/gpio-xilinx.c | 14 +++----------- 1 file changed, 3 insertions(+), 11 deletions(-) diff --git a/drivers/gpio/gpio-xilinx.c b/drivers/gpio/gpio-xilinx.c index a16945e8319e..4e4da07bf8a2 100644 --- a/drivers/gpio/gpio-xilinx.c +++ b/drivers/gpio/gpio-xilinx.c @@ -334,12 +334,9 @@ static int __maybe_unused xgpio_suspend(struct device *dev) */ static int xgpio_remove(struct platform_device *pdev) { - struct xgpio_instance *gpio = platform_get_drvdata(pdev); - pm_runtime_get_sync(&pdev->dev); pm_runtime_put_noidle(&pdev->dev); pm_runtime_disable(&pdev->dev); - clk_disable_unprepare(gpio->clk); return 0; } @@ -647,15 +644,11 @@ static int xgpio_probe(struct platform_device *pdev) return PTR_ERR(chip->regs); } - chip->clk = devm_clk_get_optional(&pdev->dev, NULL); + chip->clk = devm_clk_get_optional_enabled(&pdev->dev, NULL); if (IS_ERR(chip->clk)) - return dev_err_probe(&pdev->dev, PTR_ERR(chip->clk), "input clock not found.\n"); + return dev_err_probe(&pdev->dev, PTR_ERR(chip->clk), + "input clock not found or failed to prepare clk\n"); - status = clk_prepare_enable(chip->clk); - if (status < 0) { - dev_err(&pdev->dev, "Failed to prepare clk\n"); - return status; - } pm_runtime_get_noresume(&pdev->dev); pm_runtime_set_active(&pdev->dev); pm_runtime_enable(&pdev->dev); @@ -702,7 +695,6 @@ static int xgpio_probe(struct platform_device *pdev) err_pm_put: pm_runtime_disable(&pdev->dev); pm_runtime_put_noidle(&pdev->dev); - clk_disable_unprepare(chip->clk); return status; }