From patchwork Sat Dec 31 14:25:31 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe JAILLET X-Patchwork-Id: 638339 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 A5802C3DA7A for ; Sat, 31 Dec 2022 14:25:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231693AbiLaOZn (ORCPT ); Sat, 31 Dec 2022 09:25:43 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33046 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235676AbiLaOZj (ORCPT ); Sat, 31 Dec 2022 09:25:39 -0500 Received: from smtp.smtpout.orange.fr (smtp-20.smtpout.orange.fr [80.12.242.20]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D0543E0E6 for ; Sat, 31 Dec 2022 06:25:35 -0800 (PST) Received: from pop-os.home ([86.243.100.34]) by smtp.orange.fr with ESMTPA id BcnlpDxYdLrOWBcnlp3Dt3; Sat, 31 Dec 2022 15:25:34 +0100 X-ME-Helo: pop-os.home X-ME-Auth: Y2hyaXN0b3BoZS5qYWlsbGV0QHdhbmFkb28uZnI= X-ME-Date: Sat, 31 Dec 2022 15:25:34 +0100 X-ME-IP: 86.243.100.34 From: Christophe JAILLET To: Vladimir Zapolskiy , Wim Van Sebroeck , Guenter Roeck Cc: linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org, Christophe JAILLET , linux-arm-kernel@lists.infradead.org, linux-watchdog@vger.kernel.org Subject: [PATCH] watchdog: pnx4008: Use devm_clk_get_enabled() helper Date: Sat, 31 Dec 2022 15:25:31 +0100 Message-Id: <61f4e39db4c88408ee0149580e9aa925b784bc93.1672496714.git.christophe.jaillet@wanadoo.fr> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org The devm_clk_get_enabled() helper: - calls devm_clk_get() - calls clk_prepare_enable() and registers what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code and avoids the need of a dedicated function used with devm_add_action_or_reset(). Signed-off-by: Christophe JAILLET Reviewed-by: Guenter Roeck --- drivers/watchdog/pnx4008_wdt.c | 15 +-------------- 1 file changed, 1 insertion(+), 14 deletions(-) diff --git a/drivers/watchdog/pnx4008_wdt.c b/drivers/watchdog/pnx4008_wdt.c index e0ea133c1690..87a44a5675a1 100644 --- a/drivers/watchdog/pnx4008_wdt.c +++ b/drivers/watchdog/pnx4008_wdt.c @@ -179,11 +179,6 @@ static struct watchdog_device pnx4008_wdd = { .max_timeout = MAX_HEARTBEAT, }; -static void pnx4008_clk_disable_unprepare(void *data) -{ - clk_disable_unprepare(data); -} - static int pnx4008_wdt_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -195,18 +190,10 @@ static int pnx4008_wdt_probe(struct platform_device *pdev) if (IS_ERR(wdt_base)) return PTR_ERR(wdt_base); - wdt_clk = devm_clk_get(dev, NULL); + wdt_clk = devm_clk_get_enabled(dev, NULL); if (IS_ERR(wdt_clk)) return PTR_ERR(wdt_clk); - ret = clk_prepare_enable(wdt_clk); - if (ret) - return ret; - ret = devm_add_action_or_reset(dev, pnx4008_clk_disable_unprepare, - wdt_clk); - if (ret) - return ret; - pnx4008_wdd.bootstatus = (readl(WDTIM_RES(wdt_base)) & WDOG_RESET) ? WDIOF_CARDRESET : 0; pnx4008_wdd.parent = dev;