From patchwork Tue Aug 22 13:12:34 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: lizetao X-Patchwork-Id: 13360774 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 91D47EE49AE for ; Tue, 22 Aug 2023 13:13:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236014AbjHVNNS (ORCPT ); Tue, 22 Aug 2023 09:13:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43576 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236005AbjHVNNR (ORCPT ); Tue, 22 Aug 2023 09:13:17 -0400 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9D690CC6 for ; Tue, 22 Aug 2023 06:13:15 -0700 (PDT) Received: from kwepemi500012.china.huawei.com (unknown [172.30.72.56]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4RVV765Z8SzNnNM; Tue, 22 Aug 2023 21:09:38 +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; Tue, 22 Aug 2023 21:13:11 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , , , , Subject: [PATCH -next 22/25] spi: pic32-sqi: Use helper function devm_clk_get_enabled() Date: Tue, 22 Aug 2023 21:12:34 +0800 Message-ID: <20230822131237.1022815-23-lizetao1@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230822131237.1022815-1-lizetao1@huawei.com> References: <20230822131237.1022815-1-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-spi@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 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/spi/spi-pic32-sqi.c | 27 +++------------------------ 1 file changed, 3 insertions(+), 24 deletions(-) diff --git a/drivers/spi/spi-pic32-sqi.c b/drivers/spi/spi-pic32-sqi.c index 5cbebcf26a2a..d894b99e4104 100644 --- a/drivers/spi/spi-pic32-sqi.c +++ b/drivers/spi/spi-pic32-sqi.c @@ -593,33 +593,20 @@ static int pic32_sqi_probe(struct platform_device *pdev) } /* clocks */ - sqi->sys_clk = devm_clk_get(&pdev->dev, "reg_ck"); + sqi->sys_clk = devm_clk_get_enabled(&pdev->dev, "reg_ck"); if (IS_ERR(sqi->sys_clk)) { ret = PTR_ERR(sqi->sys_clk); dev_err(&pdev->dev, "no sys_clk ?\n"); goto err_free_master; } - sqi->base_clk = devm_clk_get(&pdev->dev, "spi_ck"); + sqi->base_clk = devm_clk_get_enabled(&pdev->dev, "spi_ck"); if (IS_ERR(sqi->base_clk)) { ret = PTR_ERR(sqi->base_clk); dev_err(&pdev->dev, "no base clk ?\n"); goto err_free_master; } - ret = clk_prepare_enable(sqi->sys_clk); - if (ret) { - dev_err(&pdev->dev, "sys clk enable failed\n"); - goto err_free_master; - } - - ret = clk_prepare_enable(sqi->base_clk); - if (ret) { - dev_err(&pdev->dev, "base clk enable failed\n"); - clk_disable_unprepare(sqi->sys_clk); - goto err_free_master; - } - init_completion(&sqi->xfer_done); /* initialize hardware */ @@ -629,7 +616,7 @@ static int pic32_sqi_probe(struct platform_device *pdev) ret = ring_desc_ring_alloc(sqi); if (ret) { dev_err(&pdev->dev, "ring alloc failed\n"); - goto err_disable_clk; + goto err_free_master; } /* install irq handlers */ @@ -669,10 +656,6 @@ static int pic32_sqi_probe(struct platform_device *pdev) err_free_ring: ring_desc_ring_free(sqi); -err_disable_clk: - clk_disable_unprepare(sqi->base_clk); - clk_disable_unprepare(sqi->sys_clk); - err_free_master: spi_master_put(master); return ret; @@ -685,10 +668,6 @@ static void pic32_sqi_remove(struct platform_device *pdev) /* release resources */ free_irq(sqi->irq, sqi); ring_desc_ring_free(sqi); - - /* disable clk */ - clk_disable_unprepare(sqi->base_clk); - clk_disable_unprepare(sqi->sys_clk); } static const struct of_device_id pic32_sqi_of_ids[] = {