From patchwork Tue Aug 22 13:12:24 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Li Zetao X-Patchwork-Id: 1825975 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org (client-ip=112.213.38.117; helo=lists.ozlabs.org; envelope-from=linux-aspeed-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org; receiver=patchwork.ozlabs.org) Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4RXHzK3gn8z1yZs for ; Fri, 25 Aug 2023 21:39:09 +1000 (AEST) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4RXHzK2tC2z3dGV for ; Fri, 25 Aug 2023 21:39:09 +1000 (AEST) X-Original-To: linux-aspeed@lists.ozlabs.org Delivered-To: linux-aspeed@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=huawei.com (client-ip=45.249.212.188; helo=szxga02-in.huawei.com; envelope-from=lizetao1@huawei.com; receiver=lists.ozlabs.org) Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4RVVdK6k12z2yVm; Tue, 22 Aug 2023 23:32:21 +1000 (AEST) Received: from kwepemi500012.china.huawei.com (unknown [172.30.72.54]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4RVV8R3ZmjzTmN3; Tue, 22 Aug 2023 21:10:47 +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; Tue, 22 Aug 2023 21:13:01 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , Subject: [PATCH -next 12/25] spi: dw-mmio: Use helper function devm_clk_get_*() Date: Tue, 22 Aug 2023 21:12:24 +0800 Message-ID: <20230822131237.1022815-13-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 X-Mailman-Approved-At: Fri, 25 Aug 2023 21:33:58 +1000 X-BeenThere: linux-aspeed@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux ASPEED SoC development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-aspeed@lists.ozlabs.org, openbmc@lists.ozlabs.org, lizetao1@huawei.com, linux-spi@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-rpi-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-riscv@lists.infradead.org, linux-arm-kernel@lists.infradead.org Errors-To: linux-aspeed-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linux-aspeed" 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. Also, devm_clk_get_optional() and clk_prepare_enable() can now be replaced by devm_clk_get_optional_enabled(). Moreover, the lable "out_clk" no longer makes sense, rename it to "out_reset". Signed-off-by: Li Zetao --- drivers/spi/spi-dw-mmio.c | 20 +++++--------------- 1 file changed, 5 insertions(+), 15 deletions(-) diff --git a/drivers/spi/spi-dw-mmio.c b/drivers/spi/spi-dw-mmio.c index 805264c9c65c..6d9f64ecbfd6 100644 --- a/drivers/spi/spi-dw-mmio.c +++ b/drivers/spi/spi-dw-mmio.c @@ -340,28 +340,22 @@ static int dw_spi_mmio_probe(struct platform_device *pdev) if (dws->irq < 0) return dws->irq; /* -ENXIO */ - dwsmmio->clk = devm_clk_get(&pdev->dev, NULL); + dwsmmio->clk = devm_clk_get_enabled(&pdev->dev, NULL); if (IS_ERR(dwsmmio->clk)) return PTR_ERR(dwsmmio->clk); - ret = clk_prepare_enable(dwsmmio->clk); - if (ret) - return ret; /* Optional clock needed to access the registers */ - dwsmmio->pclk = devm_clk_get_optional(&pdev->dev, "pclk"); + dwsmmio->pclk = devm_clk_get_optional_enabled(&pdev->dev, "pclk"); if (IS_ERR(dwsmmio->pclk)) { ret = PTR_ERR(dwsmmio->pclk); - goto out_clk; + goto out_reset; } - ret = clk_prepare_enable(dwsmmio->pclk); - if (ret) - goto out_clk; /* find an optional reset controller */ dwsmmio->rstc = devm_reset_control_get_optional_exclusive(&pdev->dev, "spi"); if (IS_ERR(dwsmmio->rstc)) { ret = PTR_ERR(dwsmmio->rstc); - goto out_clk; + goto out_reset; } reset_control_deassert(dwsmmio->rstc); @@ -397,9 +391,7 @@ static int dw_spi_mmio_probe(struct platform_device *pdev) out: pm_runtime_disable(&pdev->dev); - clk_disable_unprepare(dwsmmio->pclk); -out_clk: - clk_disable_unprepare(dwsmmio->clk); +out_reset: reset_control_assert(dwsmmio->rstc); return ret; @@ -411,8 +403,6 @@ static void dw_spi_mmio_remove(struct platform_device *pdev) dw_spi_remove_host(&dwsmmio->dws); pm_runtime_disable(&pdev->dev); - clk_disable_unprepare(dwsmmio->pclk); - clk_disable_unprepare(dwsmmio->clk); reset_control_assert(dwsmmio->rstc); }