From patchwork Fri Aug 18 09:30:10 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Li Zetao X-Patchwork-Id: 13357511 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 03AB8C71147 for ; Fri, 18 Aug 2023 09:31:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1359139AbjHRJbH (ORCPT ); Fri, 18 Aug 2023 05:31:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53510 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1359142AbjHRJal (ORCPT ); Fri, 18 Aug 2023 05:30:41 -0400 Received: from szxga03-in.huawei.com (szxga03-in.huawei.com [45.249.212.189]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DEBCD3ABE; Fri, 18 Aug 2023 02:30:37 -0700 (PDT) Received: from kwepemi500012.china.huawei.com (unknown [172.30.72.55]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4RRxNl6JhJzFqld; Fri, 18 Aug 2023 17:27:35 +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 17:30:34 +0800 From: Li Zetao To: , , , , , , , , , , , , CC: , , , , Subject: [PATCH -next 03/11] gpio: ftgpio010: Use helper function devm_clk_get_enabled() Date: Fri, 18 Aug 2023 17:30:10 +0800 Message-ID: <20230818093018.1051434-4-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() and clk_prepare_enable() can now be replaced by devm_clk_get_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-ftgpio010.c | 29 +++++++---------------------- 1 file changed, 7 insertions(+), 22 deletions(-) diff --git a/drivers/gpio/gpio-ftgpio010.c b/drivers/gpio/gpio-ftgpio010.c index 5ce59dcf02e3..51724adf237a 100644 --- a/drivers/gpio/gpio-ftgpio010.c +++ b/drivers/gpio/gpio-ftgpio010.c @@ -253,18 +253,13 @@ static int ftgpio_gpio_probe(struct platform_device *pdev) if (irq < 0) return irq; - g->clk = devm_clk_get(dev, NULL); - if (!IS_ERR(g->clk)) { - ret = clk_prepare_enable(g->clk); - if (ret) - return ret; - } else if (PTR_ERR(g->clk) == -EPROBE_DEFER) { + g->clk = devm_clk_get_enabled(dev, NULL); + if (PTR_ERR_OR_ZERO(g->clk) == -EPROBE_DEFER) /* * Percolate deferrals, for anything else, * just live without the clocking. */ return PTR_ERR(g->clk); - } ret = bgpio_init(&g->gc, dev, 4, g->base + GPIO_DATA_IN, @@ -275,7 +270,7 @@ static int ftgpio_gpio_probe(struct platform_device *pdev) 0); if (ret) { dev_err(dev, "unable to init generic GPIO\n"); - goto dis_clk; + return ret; } g->gc.label = dev_name(dev); g->gc.base = -1; @@ -293,10 +288,9 @@ static int ftgpio_gpio_probe(struct platform_device *pdev) girq->num_parents = 1; girq->parents = devm_kcalloc(dev, 1, sizeof(*girq->parents), GFP_KERNEL); - if (!girq->parents) { - ret = -ENOMEM; - goto dis_clk; - } + if (!girq->parents) + return -ENOMEM; + girq->default_type = IRQ_TYPE_NONE; girq->handler = handle_bad_irq; girq->parents[0] = irq; @@ -311,25 +305,16 @@ static int ftgpio_gpio_probe(struct platform_device *pdev) ret = devm_gpiochip_add_data(dev, &g->gc, g); if (ret) - goto dis_clk; + return ret; platform_set_drvdata(pdev, g); dev_info(dev, "FTGPIO010 @%p registered\n", g->base); return 0; - -dis_clk: - clk_disable_unprepare(g->clk); - - return ret; } static int ftgpio_gpio_remove(struct platform_device *pdev) { - struct ftgpio_gpio *g = platform_get_drvdata(pdev); - - clk_disable_unprepare(g->clk); - return 0; }