From patchwork Mon Aug 15 13:12:50 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Lindgren X-Patchwork-Id: 12943564 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9F4CAC00140 for ; Mon, 15 Aug 2022 13:20:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=X+zschC+MdqnHeyLcE5IL80rq6xBDUskjchfJnfwCRI=; b=EW4PIQE4Bx4K5h H+lP20V/XYMRZtZ6lBt2/h53M+Bf8mlCIcvl1grcuAY1mSBQuBMMQ4eGS+z7HCmebhmGN8IfKRy41 fb7oAY2Upoia03yxIxemOhdSv8XnJBpBvcVwUGAQap8nPwsibU7JESs/OkJUL/VFterR2tMSZuJQS KuIFFuBh20UVuljYvwS6dchcQ76rx93fWiCYBfzoggLZr+dyXbQ8qYtuk1WlYpPpcccNwRWkMUBiW DBPFI9c078/W4YJ+Q8AWo73Dm9QkiPQx2pqOHudcSTy/9q5io6VJIwKBwjx21zTwms1r+U0d5Hu6a 1hKUcY4kJOx2U+q6XsHw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oNa04-00GgqC-UR; Mon, 15 Aug 2022 13:19:25 +0000 Received: from muru.com ([72.249.23.125]) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oNZuZ-00Gcgr-P3 for linux-arm-kernel@lists.infradead.org; Mon, 15 Aug 2022 13:13:48 +0000 Received: from hillo.muru.com (localhost [127.0.0.1]) by muru.com (Postfix) with ESMTP id 84FA78225; Mon, 15 Aug 2022 13:06:50 +0000 (UTC) From: Tony Lindgren To: Daniel Lezcano , Thomas Gleixner Subject: [PATCH 9/9] clocksource/drivers/timer-ti-dm: Get clock in probe with devm_clk_get() Date: Mon, 15 Aug 2022 16:12:50 +0300 Message-Id: <20220815131250.34603-10-tony@atomide.com> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20220815131250.34603-1-tony@atomide.com> References: <20220815131250.34603-1-tony@atomide.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220815_061343_922864_5FE43181 X-CRM114-Status: GOOD ( 16.31 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Nishanth Menon , Grygorii Strashko , Vignesh Raghavendra , Aaro Koskinen , Keerthy , Janusz Krzysztofik , linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, Ladislav Michl , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org We can simplify the code a bit by getting the clock in probe, and using devm_clk_get(). This will also make further changes easier as the clock is available in probe instead of prepare. Signed-off-by: Tony Lindgren --- drivers/clocksource/timer-ti-dm.c | 24 +++++++++--------------- 1 file changed, 9 insertions(+), 15 deletions(-) diff --git a/drivers/clocksource/timer-ti-dm.c b/drivers/clocksource/timer-ti-dm.c --- a/drivers/clocksource/timer-ti-dm.c +++ b/drivers/clocksource/timer-ti-dm.c @@ -473,18 +473,6 @@ static int omap_dm_timer_prepare(struct dmtimer *timer) struct device *dev = &timer->pdev->dev; int rc; - /* - * FIXME: OMAP1 devices do not use the clock framework for dmtimers so - * do not call clk_get() for these devices. - */ - if (!timer->omap1) { - timer->fclk = clk_get(&timer->pdev->dev, "fck"); - if (WARN_ON_ONCE(IS_ERR(timer->fclk))) { - dev_err(&timer->pdev->dev, ": No fclk handle.\n"); - return -EINVAL; - } - } - rc = pm_runtime_resume_and_get(dev); if (rc) return rc; @@ -650,8 +638,6 @@ static int omap_dm_timer_free(struct omap_dm_timer *cookie) if (unlikely(!timer)) return -EINVAL; - clk_put(timer->fclk); - WARN_ON(!timer->reserved); timer->reserved = 0; return 0; @@ -1098,7 +1084,6 @@ static int omap_dm_timer_probe(struct platform_device *pdev) if (timer->irq < 0) return timer->irq; - timer->fclk = ERR_PTR(-ENODEV); timer->io_base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(timer->io_base)) return PTR_ERR(timer->io_base); @@ -1122,6 +1107,15 @@ static int omap_dm_timer_probe(struct platform_device *pdev) timer->omap1 = timer->capability & OMAP_TIMER_NEEDS_RESET; + /* OMAP1 devices do not yet use the clock framework for dmtimers */ + if (!timer->omap1) { + timer->fclk = devm_clk_get(dev, "fck"); + if (IS_ERR(timer->fclk)) + return PTR_ERR(timer->fclk); + } else { + timer->fclk = ERR_PTR(-ENODEV); + } + if (!(timer->capability & OMAP_TIMER_ALWON)) { timer->nb.notifier_call = omap_timer_context_notifier; cpu_pm_register_notifier(&timer->nb);