From patchwork Sat Dec 31 08:10:17 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe JAILLET X-Patchwork-Id: 638345 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 78EEAC4332F for ; Sat, 31 Dec 2022 08:10:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229943AbiLaIK1 (ORCPT ); Sat, 31 Dec 2022 03:10:27 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46604 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229523AbiLaIKZ (ORCPT ); Sat, 31 Dec 2022 03:10:25 -0500 Received: from smtp.smtpout.orange.fr (smtp-15.smtpout.orange.fr [80.12.242.15]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9B2BC109E for ; Sat, 31 Dec 2022 00:10:23 -0800 (PST) Received: from pop-os.home ([86.243.100.34]) by smtp.orange.fr with ESMTPA id BWwcp2uHMTOlqBWwcpenvO; Sat, 31 Dec 2022 09:10:21 +0100 X-ME-Helo: pop-os.home X-ME-Auth: Y2hyaXN0b3BoZS5qYWlsbGV0QHdhbmFkb28uZnI= X-ME-Date: Sat, 31 Dec 2022 09:10:21 +0100 X-ME-IP: 86.243.100.34 From: Christophe JAILLET To: Wim Van Sebroeck , Guenter Roeck , Florian Fainelli , Broadcom internal kernel review list Cc: linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org, Christophe JAILLET , linux-watchdog@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH] watchdog: bcm7038: Use devm_clk_get_enabled() helper Date: Sat, 31 Dec 2022 09:10:17 +0100 Message-Id: <9c055911e9f557b7239000c8e6cfa0cc393a19e9.1672474203.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 Acked-by: Florian Fainelli Reviewed-by: Guenter Roeck --- drivers/watchdog/bcm7038_wdt.c | 15 +-------------- 1 file changed, 1 insertion(+), 14 deletions(-) diff --git a/drivers/watchdog/bcm7038_wdt.c b/drivers/watchdog/bcm7038_wdt.c index 9388838899ac..e038dd66b819 100644 --- a/drivers/watchdog/bcm7038_wdt.c +++ b/drivers/watchdog/bcm7038_wdt.c @@ -127,11 +127,6 @@ static const struct watchdog_ops bcm7038_wdt_ops = { .get_timeleft = bcm7038_wdt_get_timeleft, }; -static void bcm7038_clk_disable_unprepare(void *data) -{ - clk_disable_unprepare(data); -} - static int bcm7038_wdt_probe(struct platform_device *pdev) { struct bcm7038_wdt_platform_data *pdata = pdev->dev.platform_data; @@ -153,17 +148,9 @@ static int bcm7038_wdt_probe(struct platform_device *pdev) if (pdata && pdata->clk_name) clk_name = pdata->clk_name; - wdt->clk = devm_clk_get(dev, clk_name); + wdt->clk = devm_clk_get_enabled(dev, clk_name); /* If unable to get clock, use default frequency */ if (!IS_ERR(wdt->clk)) { - err = clk_prepare_enable(wdt->clk); - if (err) - return err; - err = devm_add_action_or_reset(dev, - bcm7038_clk_disable_unprepare, - wdt->clk); - if (err) - return err; wdt->rate = clk_get_rate(wdt->clk); /* Prevent divide-by-zero exception */ if (!wdt->rate)