From patchwork Wed Aug 23 13:39:24 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Li Zetao X-Patchwork-Id: 13362459 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 4A5CEEE4993 for ; Wed, 23 Aug 2023 13:41:06 +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:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=2cJd0JMjUW/fqDrMQjXXNwuMld+W7tooldQFhAtZtBM=; b=T6sQulM7FJkbGL 4n1zkzEDXiJM0Gm37DB4iF66Nw/eEUB0Iw1V2s/tbOlXyIb2/DZKZkZYLPJ6fIL8M1GeH2ONikkwd F49bF+hMZvfdNAZShwdHL1e4CfNh/PHy7/DoU2EcYQt44NhLyeWwM11QX3sUqzzmV3mspkup/fs/0 E7puRYsx5P7IDOUWxuPIk57MwQjd3yNeVlRu8HpLeQ+rebAg10qNEpEvJqREYbEsQ6bzXxSYJTVu4 4iNfN0WJ16G6CytOPrkPGrt+bMHwoUdaI5nT6Pne0RtWal9+a1Zp3hFyzF247rk4O5HpjhRWKjPkf 77odfBYOVb2dHIRfzWPA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qYo6M-000i9z-1s; Wed, 23 Aug 2023 13:40:50 +0000 Received: from szxga02-in.huawei.com ([45.249.212.188]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qYo5g-000hQC-2z; Wed, 23 Aug 2023 13:40:13 +0000 Received: from kwepemi500012.china.huawei.com (unknown [172.30.72.54]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4RW6j72BqtzTmKC; Wed, 23 Aug 2023 21:37:47 +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; Wed, 23 Aug 2023 21:40:02 +0800 From: Li Zetao To: CC: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Jonathan Cameron Subject: [PATCH -next v2 11/25] spi: dw-bt1: Use helper function devm_clk_get_enabled() Date: Wed, 23 Aug 2023 21:39:24 +0800 Message-ID: <20230823133938.1359106-12-lizetao1@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230823133938.1359106-1-lizetao1@huawei.com> References: <20230822131237.1022815-1-lizetao1@huawei.com> <20230823133938.1359106-1-lizetao1@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.90.53.73] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To kwepemi500012.china.huawei.com (7.221.188.12) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230823_064010_119792_925C3EA9 X-CRM114-Status: GOOD ( 10.37 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.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. Reviewed-by: Jonathan Cameron Acked-by: Serge Semin Signed-off-by: Li Zetao --- v1 -> v2: None drivers/spi/spi-dw-bt1.c | 23 +++++------------------ 1 file changed, 5 insertions(+), 18 deletions(-) diff --git a/drivers/spi/spi-dw-bt1.c b/drivers/spi/spi-dw-bt1.c index 5e1c01822967..5391bcac305c 100644 --- a/drivers/spi/spi-dw-bt1.c +++ b/drivers/spi/spi-dw-bt1.c @@ -269,43 +269,32 @@ static int dw_spi_bt1_probe(struct platform_device *pdev) dws->paddr = mem->start; - dwsbt1->clk = devm_clk_get(&pdev->dev, NULL); + dwsbt1->clk = devm_clk_get_enabled(&pdev->dev, NULL); if (IS_ERR(dwsbt1->clk)) return PTR_ERR(dwsbt1->clk); - ret = clk_prepare_enable(dwsbt1->clk); - if (ret) - return ret; - dws->bus_num = pdev->id; dws->reg_io_width = 4; dws->max_freq = clk_get_rate(dwsbt1->clk); - if (!dws->max_freq) { - ret = -EINVAL; - goto err_disable_clk; - } + if (!dws->max_freq) + return -EINVAL; init_func = device_get_match_data(&pdev->dev); ret = init_func(pdev, dwsbt1); if (ret) - goto err_disable_clk; + return ret; pm_runtime_enable(&pdev->dev); ret = dw_spi_add_host(&pdev->dev, dws); if (ret) { pm_runtime_disable(&pdev->dev); - goto err_disable_clk; + return ret; } platform_set_drvdata(pdev, dwsbt1); return 0; - -err_disable_clk: - clk_disable_unprepare(dwsbt1->clk); - - return ret; } static void dw_spi_bt1_remove(struct platform_device *pdev) @@ -315,8 +304,6 @@ static void dw_spi_bt1_remove(struct platform_device *pdev) dw_spi_remove_host(&dwsbt1->dws); pm_runtime_disable(&pdev->dev); - - clk_disable_unprepare(dwsbt1->clk); } static const struct of_device_id dw_spi_bt1_of_match[] = {