From patchwork Tue Aug 22 13:12:13 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: lizetao X-Patchwork-Id: 13360732 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 05046EE49A4 for ; Tue, 22 Aug 2023 13:13:45 +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=MA6a6OqhsKZyvXFZZAZJnq8WWxyc6f3j1yFvrWWWH4A=; b=eJAmAt13wwB9JC ah6Hz9xbFyvmMdZJZjyiiON4SxZGSXSYw3AkqW6wIoxQiFtr5DWW845wmLFl6ox06LZTm/NWKQmHz HF1hWcL34aHGkD6Enfpt69eddasApLI9FGqh0pI6k8LbPwx9DONEuzFzu8F86/tdmFVG3mQdg7BLn bG5AyckYUSUb89UXcjhGZgMNMzKmc9sA38SutHkl2H1BRu9lBFQzZHpxnS60z1Yfat9wZGJo95NMr Cr01k7j6v8XAjR8tBU1tViYYzNpDuYlZfPjudzEQkhDfXdHh3iEq5N1lXzcMvdYmPxmt2ox5SDucv W4GGlgC/vvr9GPHeyO8g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qYRCW-00FyAr-0g; Tue, 22 Aug 2023 13:13:40 +0000 Received: from szxga03-in.huawei.com ([45.249.212.189]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qYRBt-00FxVS-38; Tue, 22 Aug 2023 13:13:04 +0000 Received: from kwepemi500012.china.huawei.com (unknown [172.30.72.55]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4RVV7G1xmtzLpF3; Tue, 22 Aug 2023 21:09:46 +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 21:12:49 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , , , , Subject: [PATCH -next 01/25] spi: ar934x: Use helper function devm_clk_get_enabled() Date: Tue, 22 Aug 2023 21:12:13 +0800 Message-ID: <20230822131237.1022815-2-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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230822_061302_472726_8AD8BCA6 X-CRM114-Status: GOOD ( 11.88 ) X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=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. Signed-off-by: Li Zetao --- drivers/spi/spi-ar934x.c | 22 +++------------------- 1 file changed, 3 insertions(+), 19 deletions(-) diff --git a/drivers/spi/spi-ar934x.c b/drivers/spi/spi-ar934x.c index 58b98cea31d9..5ba988720851 100644 --- a/drivers/spi/spi-ar934x.c +++ b/drivers/spi/spi-ar934x.c @@ -168,27 +168,21 @@ static int ar934x_spi_probe(struct platform_device *pdev) struct ar934x_spi *sp; void __iomem *base; struct clk *clk; - int ret; base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(base)) return PTR_ERR(base); - clk = devm_clk_get(&pdev->dev, NULL); + clk = devm_clk_get_enabled(&pdev->dev, NULL); if (IS_ERR(clk)) { dev_err(&pdev->dev, "failed to get clock\n"); return PTR_ERR(clk); } - ret = clk_prepare_enable(clk); - if (ret) - return ret; - ctlr = devm_spi_alloc_host(&pdev->dev, sizeof(*sp)); if (!ctlr) { dev_info(&pdev->dev, "failed to allocate spi controller\n"); - ret = -ENOMEM; - goto err_clk_disable; + return -ENOMEM; } /* disable flash mapping and expose spi controller registers */ @@ -212,25 +206,15 @@ static int ar934x_spi_probe(struct platform_device *pdev) sp->clk_freq = clk_get_rate(clk); sp->ctlr = ctlr; - ret = spi_register_controller(ctlr); - if (!ret) - return 0; - -err_clk_disable: - clk_disable_unprepare(clk); - return ret; + return spi_register_controller(ctlr); } static void ar934x_spi_remove(struct platform_device *pdev) { struct spi_controller *ctlr; - struct ar934x_spi *sp; ctlr = dev_get_drvdata(&pdev->dev); - sp = spi_controller_get_devdata(ctlr); - spi_unregister_controller(ctlr); - clk_disable_unprepare(sp->clk); } static struct platform_driver ar934x_spi_driver = { From patchwork Tue Aug 22 13:12:14 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: lizetao X-Patchwork-Id: 13360727 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 8A9DAEE49AC for ; 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Tue, 22 Aug 2023 13:13:13 +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 1qYRBs-00FxVX-0I; Tue, 22 Aug 2023 13:13:02 +0000 Received: from kwepemi500012.china.huawei.com (unknown [172.30.72.53]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4RVV6j1lnzzNnMw; Tue, 22 Aug 2023 21:09:17 +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 21:12:50 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , , , , Subject: [PATCH -next 02/25] spi: armada-3700: Use helper function devm_clk_get_prepared() Date: Tue, 22 Aug 2023 21:12:14 +0800 Message-ID: <20230822131237.1022815-3-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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230822_061300_693220_10BC2325 X-CRM114-Status: GOOD ( 10.34 ) X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=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() can now be replaced by devm_clk_get_prepared() when driver prepares the clocks for the whole lifetime of the device. Moreover, it is no longer necessary to unprepare the clocks explicitly. Signed-off-by: Li Zetao --- drivers/spi/spi-armada-3700.c | 18 +++--------------- 1 file changed, 3 insertions(+), 15 deletions(-) diff --git a/drivers/spi/spi-armada-3700.c b/drivers/spi/spi-armada-3700.c index 0103ac0158c0..70113b9dab35 100644 --- a/drivers/spi/spi-armada-3700.c +++ b/drivers/spi/spi-armada-3700.c @@ -865,18 +865,12 @@ static int a3700_spi_probe(struct platform_device *pdev) init_completion(&spi->done); - spi->clk = devm_clk_get(dev, NULL); + spi->clk = devm_clk_get_prepared(dev, NULL); if (IS_ERR(spi->clk)) { dev_err(dev, "could not find clk: %ld\n", PTR_ERR(spi->clk)); goto error; } - ret = clk_prepare(spi->clk); - if (ret) { - dev_err(dev, "could not prepare clk: %d\n", ret); - goto error; - } - host->max_speed_hz = min_t(unsigned long, A3700_SPI_MAX_SPEED_HZ, clk_get_rate(spi->clk)); host->min_speed_hz = DIV_ROUND_UP(clk_get_rate(spi->clk), @@ -888,19 +882,17 @@ static int a3700_spi_probe(struct platform_device *pdev) dev_name(dev), host); if (ret) { dev_err(dev, "could not request IRQ: %d\n", ret); - goto error_clk; + goto error; } ret = devm_spi_register_controller(dev, host); if (ret) { dev_err(dev, "Failed to register host\n"); - goto error_clk; + goto error; } return 0; -error_clk: - clk_unprepare(spi->clk); error: spi_controller_put(host); out: @@ -909,10 +901,6 @@ static int a3700_spi_probe(struct platform_device *pdev) static void a3700_spi_remove(struct platform_device *pdev) { - struct spi_controller *host = platform_get_drvdata(pdev); - struct a3700_spi *spi = spi_controller_get_devdata(host); - - clk_unprepare(spi->clk); } static struct platform_driver a3700_spi_driver = { From patchwork Tue Aug 22 13:12:15 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: lizetao X-Patchwork-Id: 13360733 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 6D987EE49A3 for ; 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Tue, 22 Aug 2023 13:13:41 +0000 Received: from szxga08-in.huawei.com ([45.249.212.255]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qYRBt-00FxVV-1t; Tue, 22 Aug 2023 13:13:03 +0000 Received: from kwepemi500012.china.huawei.com (unknown [172.30.72.56]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4RVV9821pFz1L9G9; Tue, 22 Aug 2023 21:11:24 +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 21:12:51 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , , , , Subject: [PATCH -next 03/25] spi: aspeed: Use helper function devm_clk_get_enabled() Date: Tue, 22 Aug 2023 21:12:15 +0800 Message-ID: <20230822131237.1022815-4-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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230822_061302_106648_760B7913 X-CRM114-Status: GOOD ( 10.74 ) X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=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. Signed-off-by: Li Zetao Reviewed-by: Chin-Ting Kuo Reviewed-by: Cédric Le Goater --- drivers/spi/spi-aspeed-smc.c | 16 ++-------------- 1 file changed, 2 insertions(+), 14 deletions(-) diff --git a/drivers/spi/spi-aspeed-smc.c b/drivers/spi/spi-aspeed-smc.c index 21b0fa646c7d..bbd417c55e7f 100644 --- a/drivers/spi/spi-aspeed-smc.c +++ b/drivers/spi/spi-aspeed-smc.c @@ -748,7 +748,7 @@ static int aspeed_spi_probe(struct platform_device *pdev) aspi->ahb_window_size = resource_size(res); aspi->ahb_base_phy = res->start; - aspi->clk = devm_clk_get(&pdev->dev, NULL); + aspi->clk = devm_clk_get_enabled(&pdev->dev, NULL); if (IS_ERR(aspi->clk)) { dev_err(dev, "missing clock\n"); return PTR_ERR(aspi->clk); @@ -760,12 +760,6 @@ static int aspeed_spi_probe(struct platform_device *pdev) return -EINVAL; } - ret = clk_prepare_enable(aspi->clk); - if (ret) { - dev_err(dev, "can not enable the clock\n"); - return ret; - } - /* IRQ is for DMA, which the driver doesn't support yet */ ctlr->mode_bits = SPI_RX_DUAL | SPI_TX_DUAL | data->mode_bits; @@ -777,14 +771,9 @@ static int aspeed_spi_probe(struct platform_device *pdev) ctlr->dev.of_node = dev->of_node; ret = devm_spi_register_controller(dev, ctlr); - if (ret) { + if (ret) dev_err(&pdev->dev, "spi_register_controller failed\n"); - goto disable_clk; - } - return 0; -disable_clk: - clk_disable_unprepare(aspi->clk); return ret; } @@ -793,7 +782,6 @@ static void aspeed_spi_remove(struct platform_device *pdev) struct aspeed_spi *aspi = platform_get_drvdata(pdev); aspeed_spi_enable(aspi, false); - clk_disable_unprepare(aspi->clk); } /* From patchwork Tue Aug 22 13:12:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: lizetao X-Patchwork-Id: 13360728 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 8AD1FEE49A4 for ; Tue, 22 Aug 2023 13:13:24 +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=HWgW9CGDjbpKH78tQ7nM7h7ve1VorKnFMAQ4Y3XEzhI=; b=LcYb+ByDTdLQqX F2PFUpWryTidwNb2OtRG2IKloGBZ0wwqQdBAYY1JfYT4P+MNdc5AQtyaxVQt77Yxt9yB4zv7zMWnt B5mhEAF0HeJtbJn77onvyw5eyOo5r+49XO8cOP7J8+J2lFInxq+b5OtoOGTkJw9IzbZ/bij/2qrXL kl9B5Dx0t1s0oTIwTmXSTjdpqDCokEJQZLt2sNhG5CPzz+GWnLkk2fvTc1uHSaTuUgp+Zf0akmubG +xOHbQzhTtlUkk7bhXgP+4PohL6tzLBWikg2z5IgqC9ih0IL4cPpPdEnFGle/bCQz+meUPj761JxZ qQ6K/S2sO0guGlbpzgdQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qYRC7-00Fxjj-2w; Tue, 22 Aug 2023 13:13:15 +0000 Received: from szxga01-in.huawei.com ([45.249.212.187]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qYRBs-00FxVW-0c; Tue, 22 Aug 2023 13:13:02 +0000 Received: from kwepemi500012.china.huawei.com (unknown [172.30.72.54]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4RVV984PwWzrSLc; Tue, 22 Aug 2023 21:11:24 +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 21:12:52 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , , , , Subject: [PATCH -next 04/25] spi: ath79: Use helper function devm_clk_get_enabled() Date: Tue, 22 Aug 2023 21:12:16 +0800 Message-ID: <20230822131237.1022815-5-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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230822_061300_516997_EF657940 X-CRM114-Status: UNSURE ( 9.44 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=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. Signed-off-by: Li Zetao --- drivers/spi/spi-ath79.c | 11 ++--------- 1 file changed, 2 insertions(+), 9 deletions(-) diff --git a/drivers/spi/spi-ath79.c b/drivers/spi/spi-ath79.c index 1b6d977d111c..c9f1d1e1dcf7 100644 --- a/drivers/spi/spi-ath79.c +++ b/drivers/spi/spi-ath79.c @@ -200,20 +200,16 @@ static int ath79_spi_probe(struct platform_device *pdev) goto err_put_host; } - sp->clk = devm_clk_get(&pdev->dev, "ahb"); + sp->clk = devm_clk_get_enabled(&pdev->dev, "ahb"); if (IS_ERR(sp->clk)) { ret = PTR_ERR(sp->clk); goto err_put_host; } - ret = clk_prepare_enable(sp->clk); - if (ret) - goto err_put_host; - rate = DIV_ROUND_UP(clk_get_rate(sp->clk), MHZ); if (!rate) { ret = -EINVAL; - goto err_clk_disable; + goto err_put_host; } sp->rrw_delay = ATH79_SPI_RRW_DELAY_FACTOR / rate; @@ -229,8 +225,6 @@ static int ath79_spi_probe(struct platform_device *pdev) err_disable: ath79_spi_disable(sp); -err_clk_disable: - clk_disable_unprepare(sp->clk); err_put_host: spi_controller_put(host); @@ -243,7 +237,6 @@ static void ath79_spi_remove(struct platform_device *pdev) spi_bitbang_stop(&sp->bitbang); ath79_spi_disable(sp); - clk_disable_unprepare(sp->clk); spi_controller_put(sp->bitbang.master); } From patchwork Tue Aug 22 13:12:17 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: lizetao X-Patchwork-Id: 13360738 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 3C938EE4993 for ; Tue, 22 Aug 2023 13:14:35 +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=FkbrBNpXJwsLpTCGUEfsDDiXdvwvaposD1jQW7xs7jg=; b=QuXse8AX5t8YkW COA2uREIN16hPkSwpqg73AOrSE8F55VNgHdeWJQ73DmSfj4kulChkq6peDbEfTYYdgMyREI45JnB/ UuhbXZz6n1J4KmdODx9QdNVQ2y18RT5CAvS6gbDAdyaawBRiBKXk2Z2jmm52ojHkwL4lWeNsxC6iW OLVaivMOpZN8qDNWnd98+YX2uKX2IK3VlnyenMmEcHFGpPvWg/vLC8iFSPgGW9EDDtZAt8Q1ciRfk GJRFDRs4fICeADl32ffJdqGwzB5X7MuJAe8OqRjoyVgp4dq9bzup3hjYxNL7/7c021ALiR6Jz+VbK ayRIds56QxmQkD1loRTQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qYRDJ-00Fz5Y-2a; Tue, 22 Aug 2023 13:14:29 +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 1qYRBv-00FxVa-0A; Tue, 22 Aug 2023 13:13:06 +0000 Received: from kwepemi500012.china.huawei.com (unknown [172.30.72.55]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4RVV8H6wtKzTm1P; Tue, 22 Aug 2023 21:10:39 +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 21:12:53 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , , , , Subject: [PATCH -next 05/25] spi: spi-axi-spi-engine: Use helper function devm_clk_get_enabled() Date: Tue, 22 Aug 2023 21:12:17 +0800 Message-ID: <20230822131237.1022815-6-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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230822_061303_595507_5580D929 X-CRM114-Status: UNSURE ( 9.61 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=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. Signed-off-by: Li Zetao --- drivers/spi/spi-axi-spi-engine.c | 25 +++++-------------------- 1 file changed, 5 insertions(+), 20 deletions(-) diff --git a/drivers/spi/spi-axi-spi-engine.c b/drivers/spi/spi-axi-spi-engine.c index 0258c9a72fdc..b96e55f59d1a 100644 --- a/drivers/spi/spi-axi-spi-engine.c +++ b/drivers/spi/spi-axi-spi-engine.c @@ -485,30 +485,22 @@ static int spi_engine_probe(struct platform_device *pdev) spin_lock_init(&spi_engine->lock); - spi_engine->clk = devm_clk_get(&pdev->dev, "s_axi_aclk"); + spi_engine->clk = devm_clk_get_enabled(&pdev->dev, "s_axi_aclk"); if (IS_ERR(spi_engine->clk)) { ret = PTR_ERR(spi_engine->clk); goto err_put_host; } - spi_engine->ref_clk = devm_clk_get(&pdev->dev, "spi_clk"); + spi_engine->ref_clk = devm_clk_get_enabled(&pdev->dev, "spi_clk"); if (IS_ERR(spi_engine->ref_clk)) { ret = PTR_ERR(spi_engine->ref_clk); goto err_put_host; } - ret = clk_prepare_enable(spi_engine->clk); - if (ret) - goto err_put_host; - - ret = clk_prepare_enable(spi_engine->ref_clk); - if (ret) - goto err_clk_disable; - spi_engine->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(spi_engine->base)) { ret = PTR_ERR(spi_engine->base); - goto err_ref_clk_disable; + goto err_put_host; } version = readl(spi_engine->base + SPI_ENGINE_REG_VERSION); @@ -518,7 +510,7 @@ static int spi_engine_probe(struct platform_device *pdev) SPI_ENGINE_VERSION_MINOR(version), SPI_ENGINE_VERSION_PATCH(version)); ret = -ENODEV; - goto err_ref_clk_disable; + goto err_put_host; } writel_relaxed(0x00, spi_engine->base + SPI_ENGINE_REG_RESET); @@ -527,7 +519,7 @@ static int spi_engine_probe(struct platform_device *pdev) ret = request_irq(irq, spi_engine_irq, 0, pdev->name, host); if (ret) - goto err_ref_clk_disable; + goto err_put_host; host->dev.of_node = pdev->dev.of_node; host->mode_bits = SPI_CPOL | SPI_CPHA | SPI_3WIRE; @@ -545,10 +537,6 @@ static int spi_engine_probe(struct platform_device *pdev) return 0; err_free_irq: free_irq(irq, host); -err_ref_clk_disable: - clk_disable_unprepare(spi_engine->ref_clk); -err_clk_disable: - clk_disable_unprepare(spi_engine->clk); err_put_host: spi_controller_put(host); return ret; @@ -569,9 +557,6 @@ static void spi_engine_remove(struct platform_device *pdev) writel_relaxed(0xff, spi_engine->base + SPI_ENGINE_REG_INT_PENDING); writel_relaxed(0x00, spi_engine->base + SPI_ENGINE_REG_INT_ENABLE); writel_relaxed(0x01, spi_engine->base + SPI_ENGINE_REG_RESET); - - clk_disable_unprepare(spi_engine->ref_clk); - clk_disable_unprepare(spi_engine->clk); } static const struct of_device_id spi_engine_match_table[] = { From patchwork Tue Aug 22 13:12:18 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: lizetao X-Patchwork-Id: 13360731 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 4B8BDEE49AA for ; 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Tue, 22 Aug 2023 13:13:36 +0000 Received: from szxga08-in.huawei.com ([45.249.212.255]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qYRBt-00FxVb-1s; Tue, 22 Aug 2023 13:13:04 +0000 Received: from kwepemi500012.china.huawei.com (unknown [172.30.72.57]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4RVV9C40tRz1L9MW; Tue, 22 Aug 2023 21:11:27 +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 21:12:54 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , , , , Subject: [PATCH -next 06/25] spi: bcm2835: Use helper function devm_clk_get_enabled() Date: Tue, 22 Aug 2023 21:12:18 +0800 Message-ID: <20230822131237.1022815-7-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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230822_061302_108215_B32A78DB X-CRM114-Status: GOOD ( 10.79 ) X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=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. Signed-off-by: Li Zetao --- drivers/spi/spi-bcm2835.c | 11 ++--------- 1 file changed, 2 insertions(+), 9 deletions(-) diff --git a/drivers/spi/spi-bcm2835.c b/drivers/spi/spi-bcm2835.c index e7bb2714678a..a457ad2f7db1 100644 --- a/drivers/spi/spi-bcm2835.c +++ b/drivers/spi/spi-bcm2835.c @@ -1352,7 +1352,7 @@ static int bcm2835_spi_probe(struct platform_device *pdev) if (IS_ERR(bs->regs)) return PTR_ERR(bs->regs); - bs->clk = devm_clk_get(&pdev->dev, NULL); + bs->clk = devm_clk_get_enabled(&pdev->dev, NULL); if (IS_ERR(bs->clk)) return dev_err_probe(&pdev->dev, PTR_ERR(bs->clk), "could not get clk\n"); @@ -1363,14 +1363,11 @@ static int bcm2835_spi_probe(struct platform_device *pdev) if (bs->irq < 0) return bs->irq; - err = clk_prepare_enable(bs->clk); - if (err) - return err; bs->clk_hz = clk_get_rate(bs->clk); err = bcm2835_dma_init(ctlr, &pdev->dev, bs); if (err) - goto out_clk_disable; + return err; /* initialise the hardware with the default polarities */ bcm2835_wr(bs, BCM2835_SPI_CS, @@ -1396,8 +1393,6 @@ static int bcm2835_spi_probe(struct platform_device *pdev) out_dma_release: bcm2835_dma_release(ctlr, bs); -out_clk_disable: - clk_disable_unprepare(bs->clk); return err; } @@ -1415,8 +1410,6 @@ static void bcm2835_spi_remove(struct platform_device *pdev) /* Clear FIFOs, and disable the HW block */ bcm2835_wr(bs, BCM2835_SPI_CS, BCM2835_SPI_CS_CLEAR_RX | BCM2835_SPI_CS_CLEAR_TX); - - clk_disable_unprepare(bs->clk); } static const struct of_device_id bcm2835_spi_match[] = { From patchwork Tue Aug 22 13:12:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: lizetao X-Patchwork-Id: 13360736 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 B78B4EE49AA for ; Tue, 22 Aug 2023 13:14:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; 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Tue, 22 Aug 2023 13:13:06 +0000 Received: from kwepemi500012.china.huawei.com (unknown [172.30.72.54]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4RVV6p4QMczNnL2; Tue, 22 Aug 2023 21:09:22 +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 21:12:55 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , , , , Subject: [PATCH -next 07/25] spi: bcm2835aux: Use helper function devm_clk_get_enabled() Date: Tue, 22 Aug 2023 21:12:19 +0800 Message-ID: <20230822131237.1022815-8-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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230822_061302_799045_B1DFCB4D X-CRM114-Status: GOOD ( 11.92 ) X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=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. Signed-off-by: Li Zetao --- drivers/spi/spi-bcm2835aux.c | 23 ++++------------------- 1 file changed, 4 insertions(+), 19 deletions(-) diff --git a/drivers/spi/spi-bcm2835aux.c b/drivers/spi/spi-bcm2835aux.c index 6d2a5d9f2498..06fe155a70c9 100644 --- a/drivers/spi/spi-bcm2835aux.c +++ b/drivers/spi/spi-bcm2835aux.c @@ -512,7 +512,7 @@ static int bcm2835aux_spi_probe(struct platform_device *pdev) if (IS_ERR(bs->regs)) return PTR_ERR(bs->regs); - bs->clk = devm_clk_get(&pdev->dev, NULL); + bs->clk = devm_clk_get_enabled(&pdev->dev, NULL); if (IS_ERR(bs->clk)) { err = PTR_ERR(bs->clk); dev_err(&pdev->dev, "could not get clk: %d\n", err); @@ -523,19 +523,11 @@ static int bcm2835aux_spi_probe(struct platform_device *pdev) if (bs->irq < 0) return bs->irq; - /* this also enables the HW block */ - err = clk_prepare_enable(bs->clk); - if (err) { - dev_err(&pdev->dev, "could not prepare clock: %d\n", err); - return err; - } - /* just checking if the clock returns a sane value */ clk_hz = clk_get_rate(bs->clk); if (!clk_hz) { dev_err(&pdev->dev, "clock returns 0 Hz\n"); - err = -ENODEV; - goto out_clk_disable; + return -ENODEV; } /* reset SPI-HW block */ @@ -547,22 +539,18 @@ static int bcm2835aux_spi_probe(struct platform_device *pdev) dev_name(&pdev->dev), host); if (err) { dev_err(&pdev->dev, "could not request IRQ: %d\n", err); - goto out_clk_disable; + return err; } err = spi_register_controller(host); if (err) { dev_err(&pdev->dev, "could not register SPI host: %d\n", err); - goto out_clk_disable; + return err; } bcm2835aux_debugfs_create(bs, dev_name(&pdev->dev)); return 0; - -out_clk_disable: - clk_disable_unprepare(bs->clk); - return err; } static void bcm2835aux_spi_remove(struct platform_device *pdev) @@ -575,9 +563,6 @@ static void bcm2835aux_spi_remove(struct platform_device *pdev) spi_unregister_controller(host); bcm2835aux_spi_reset_hw(bs); - - /* disable the HW block by releasing the clock */ - clk_disable_unprepare(bs->clk); } static const struct of_device_id bcm2835aux_spi_match[] = { From patchwork Tue Aug 22 13:12:20 2023 Content-Type: text/plain; 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Tue, 22 Aug 2023 21:12:56 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , , , , Subject: [PATCH -next 08/25] spi: spi-cadence: Use helper function devm_clk_get_enabled() Date: Tue, 22 Aug 2023 21:12:20 +0800 Message-ID: <20230822131237.1022815-9-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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230822_061300_968130_8540C9BB X-CRM114-Status: UNSURE ( 9.26 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=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. Signed-off-by: Li Zetao --- drivers/spi/spi-cadence.c | 23 +++-------------------- 1 file changed, 3 insertions(+), 20 deletions(-) diff --git a/drivers/spi/spi-cadence.c b/drivers/spi/spi-cadence.c index 3c9813ad064b..174476bbdf54 100644 --- a/drivers/spi/spi-cadence.c +++ b/drivers/spi/spi-cadence.c @@ -576,31 +576,19 @@ static int cdns_spi_probe(struct platform_device *pdev) goto remove_ctlr; } - xspi->pclk = devm_clk_get(&pdev->dev, "pclk"); + xspi->pclk = devm_clk_get_enabled(&pdev->dev, "pclk"); if (IS_ERR(xspi->pclk)) { dev_err(&pdev->dev, "pclk clock not found.\n"); ret = PTR_ERR(xspi->pclk); goto remove_ctlr; } - ret = clk_prepare_enable(xspi->pclk); - if (ret) { - dev_err(&pdev->dev, "Unable to enable APB clock.\n"); - goto remove_ctlr; - } - if (!spi_controller_is_target(ctlr)) { - xspi->ref_clk = devm_clk_get(&pdev->dev, "ref_clk"); + xspi->ref_clk = devm_clk_get_enabled(&pdev->dev, "ref_clk"); if (IS_ERR(xspi->ref_clk)) { dev_err(&pdev->dev, "ref_clk clock not found.\n"); ret = PTR_ERR(xspi->ref_clk); - goto clk_dis_apb; - } - - ret = clk_prepare_enable(xspi->ref_clk); - if (ret) { - dev_err(&pdev->dev, "Unable to enable device clock.\n"); - goto clk_dis_apb; + goto remove_ctlr; } pm_runtime_use_autosuspend(&pdev->dev); @@ -674,10 +662,7 @@ static int cdns_spi_probe(struct platform_device *pdev) if (!spi_controller_is_target(ctlr)) { pm_runtime_set_suspended(&pdev->dev); pm_runtime_disable(&pdev->dev); - clk_disable_unprepare(xspi->ref_clk); } -clk_dis_apb: - clk_disable_unprepare(xspi->pclk); remove_ctlr: spi_controller_put(ctlr); return ret; @@ -698,8 +683,6 @@ static void cdns_spi_remove(struct platform_device *pdev) cdns_spi_write(xspi, CDNS_SPI_ER, CDNS_SPI_ER_DISABLE); - clk_disable_unprepare(xspi->ref_clk); - clk_disable_unprepare(xspi->pclk); pm_runtime_set_suspended(&pdev->dev); pm_runtime_disable(&pdev->dev); From patchwork Tue Aug 22 13:12:21 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: lizetao X-Patchwork-Id: 13360730 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 5F62EEE49A4 for ; Tue, 22 Aug 2023 13:13:36 +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=mPV2sn8Dffx6qWC9Lbp7z1S3FTl8leeLASFqxGqFdlU=; b=dRJ8eQwCQ6VAxK Qn/d+S2XEDi12qSij1yW7tgrHQq5wFYVwl8oGEgu/A+qOrG4JTjw1dbto7/UdkWshAKsmak5KoMq3 fT9jJNPe6B0MTxIhsQvF8r4ZvBcCJJLVFfIcie1kOIT1nCc2UEEIGta0GAT6vPXR3wNlhKc/Y68I1 rpUzJoPHVIBCPC10Fom1YMzhr6F1FRu3PwrED1v23DVQi0I+qo1zXh8+3YPistdELY/PVCXh0hEhx LS9zcgPIT5tE+PHdYmrwXBjUFLGuzOYv5HgRLXHu/b200A6vgOo29ziWg0twP1k846+r1JcukyLqp M8JGI1k7XlQO76doEhww==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qYRCO-00Fy1N-0z; Tue, 22 Aug 2023 13:13:32 +0000 Received: from szxga01-in.huawei.com ([45.249.212.187]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qYRBt-00FxVf-1y; Tue, 22 Aug 2023 13:13:03 +0000 Received: from kwepemi500012.china.huawei.com (unknown [172.30.72.55]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4RVV6g4mz2ztS5s; Tue, 22 Aug 2023 21:09:15 +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 21:12:57 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , , , , Subject: [PATCH -next 09/25] spi: spi-cavium-thunderx: Use helper function devm_clk_get_enabled() Date: Tue, 22 Aug 2023 21:12:21 +0800 Message-ID: <20230822131237.1022815-10-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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230822_061301_858805_4618316F X-CRM114-Status: UNSURE ( 8.95 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=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. Signed-off-by: Li Zetao --- drivers/spi/spi-cavium-thunderx.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) diff --git a/drivers/spi/spi-cavium-thunderx.c b/drivers/spi/spi-cavium-thunderx.c index f7c378a5f1bc..337aef12abcc 100644 --- a/drivers/spi/spi-cavium-thunderx.c +++ b/drivers/spi/spi-cavium-thunderx.c @@ -49,16 +49,12 @@ static int thunderx_spi_probe(struct pci_dev *pdev, p->regs.tx = 0x1010; p->regs.data = 0x1080; - p->clk = devm_clk_get(dev, NULL); + p->clk = devm_clk_get_enabled(dev, NULL); if (IS_ERR(p->clk)) { ret = PTR_ERR(p->clk); goto error; } - ret = clk_prepare_enable(p->clk); - if (ret) - goto error; - p->sys_freq = clk_get_rate(p->clk); if (!p->sys_freq) p->sys_freq = SYS_FREQ_DEFAULT; @@ -82,7 +78,6 @@ static int thunderx_spi_probe(struct pci_dev *pdev, return 0; error: - clk_disable_unprepare(p->clk); pci_release_regions(pdev); spi_controller_put(host); return ret; @@ -97,7 +92,6 @@ static void thunderx_spi_remove(struct pci_dev *pdev) if (!p) return; - clk_disable_unprepare(p->clk); pci_release_regions(pdev); /* Put everything in a known state. */ writeq(0, p->register_base + OCTEON_SPI_CFG(p)); From patchwork Tue Aug 22 13:12:22 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: lizetao X-Patchwork-Id: 13360734 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 44EFCEE49A4 for ; Tue, 22 Aug 2023 13:14:05 +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=2mgdh9/T0kNTnJ6TMnlYh+ytXnhuiE+mueNcZbIF4Vo=; b=oIVb0i56O1rrxQ 4bK5CYiHnGm2FjzOOM9LELSB3AxC/Rdqu+ZP2wcKw6ib3dWOqW0gfbUrtDHkL1PCTESh9I0vuOd77 K/GF2jt9jougsqK+uyoRw4nkQ9nEQNS39xzgC+6bjC8PI6qGZBHUzzGewgwWWKQje8T9rVj71UStn cpzz3/dnvQ6CqVceRGKtlne1R9qA+WZ94oUYkBE4t9kf1NiuYI+5MkvEBIduP2C63NpWulUWdxkqv zHvmWmRwx3yC2JB+xhDiI4GWtOrZLmTBUGEg+GewP1XMsBjr5mRGq95LVg9KXT0scKfpNHi2hviBU klsFJ/NBSDP1l28KrHaQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qYRCn-00FyX1-0j; Tue, 22 Aug 2023 13:13:57 +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 1qYRBu-00FxWF-2H; Tue, 22 Aug 2023 13:13:06 +0000 Received: from kwepemi500012.china.huawei.com (unknown [172.30.72.55]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4RVV6s61w2zNnTg; Tue, 22 Aug 2023 21:09:25 +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 21:12:58 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , , , , Subject: [PATCH -next 10/25] spi: davinci: Use helper function devm_clk_get_enabled() Date: Tue, 22 Aug 2023 21:12:22 +0800 Message-ID: <20230822131237.1022815-11-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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230822_061303_790478_A3382E83 X-CRM114-Status: UNSURE ( 9.73 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=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. Signed-off-by: Li Zetao --- drivers/spi/spi-davinci.c | 11 ++--------- 1 file changed, 2 insertions(+), 9 deletions(-) diff --git a/drivers/spi/spi-davinci.c b/drivers/spi/spi-davinci.c index c457b550d3ad..5688be245c68 100644 --- a/drivers/spi/spi-davinci.c +++ b/drivers/spi/spi-davinci.c @@ -915,14 +915,11 @@ static int davinci_spi_probe(struct platform_device *pdev) dspi->bitbang.master = host; - dspi->clk = devm_clk_get(&pdev->dev, NULL); + dspi->clk = devm_clk_get_enabled(&pdev->dev, NULL); if (IS_ERR(dspi->clk)) { ret = -ENODEV; goto free_host; } - ret = clk_prepare_enable(dspi->clk); - if (ret) - goto free_host; host->use_gpio_descriptors = true; host->dev.of_node = pdev->dev.of_node; @@ -947,7 +944,7 @@ static int davinci_spi_probe(struct platform_device *pdev) ret = davinci_spi_request_dma(dspi); if (ret == -EPROBE_DEFER) { - goto free_clk; + goto free_host; } else if (ret) { dev_info(&pdev->dev, "DMA is not supported (%d)\n", ret); dspi->dma_rx = NULL; @@ -991,8 +988,6 @@ static int davinci_spi_probe(struct platform_device *pdev) dma_release_channel(dspi->dma_rx); dma_release_channel(dspi->dma_tx); } -free_clk: - clk_disable_unprepare(dspi->clk); free_host: spi_controller_put(host); err: @@ -1018,8 +1013,6 @@ static void davinci_spi_remove(struct platform_device *pdev) spi_bitbang_stop(&dspi->bitbang); - clk_disable_unprepare(dspi->clk); - if (dspi->dma_rx) { dma_release_channel(dspi->dma_rx); dma_release_channel(dspi->dma_tx); From patchwork Tue Aug 22 13:12:23 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: lizetao X-Patchwork-Id: 13360751 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 4DFA0EE49A4 for ; Tue, 22 Aug 2023 13:16:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; 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Tue, 22 Aug 2023 21:11:32 +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 21:12:59 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , , , , Subject: [PATCH -next 11/25] spi: dw-bt1: Use helper function devm_clk_get_enabled() Date: Tue, 22 Aug 2023 21:12:23 +0800 Message-ID: <20230822131237.1022815-12-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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230822_141317_328521_509BFF7B X-CRM114-Status: UNSURE ( 9.99 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=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. Signed-off-by: Li Zetao Acked-by: Serge Semin --- 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[] = { 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: lizetao X-Patchwork-Id: 13360737 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 65C3CEE49A3 for ; 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Tue, 22 Aug 2023 13:14:23 +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 1qYRBw-00FxY0-2r; Tue, 22 Aug 2023 13:13:06 +0000 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: , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , , , , 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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230822_061305_450130_7C6632FF X-CRM114-Status: GOOD ( 10.54 ) X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=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. 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); } From patchwork Tue Aug 22 13:12:25 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: lizetao X-Patchwork-Id: 13360739 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 4D74BEE49AF for ; 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Tue, 22 Aug 2023 13:14:33 +0000 Received: from szxga01-in.huawei.com ([45.249.212.187]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qYRBy-00FxZC-07; Tue, 22 Aug 2023 13:13:07 +0000 Received: from kwepemi500012.china.huawei.com (unknown [172.30.72.53]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4RVV6l6x4PztS7V; Tue, 22 Aug 2023 21:09:19 +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 21:13:02 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , , , , Subject: [PATCH -next 13/25] spi: spi-fsl-dspi: Use helper function devm_clk_get_enabled() Date: Tue, 22 Aug 2023 21:12:25 +0800 Message-ID: <20230822131237.1022815-14-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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230822_061306_543966_A2412B9E X-CRM114-Status: GOOD ( 10.57 ) X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=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. Signed-off-by: Li Zetao --- drivers/spi/spi-fsl-dspi.c | 12 +++--------- 1 file changed, 3 insertions(+), 9 deletions(-) diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c index 8318249f8a1f..c9eae046f66c 100644 --- a/drivers/spi/spi-fsl-dspi.c +++ b/drivers/spi/spi-fsl-dspi.c @@ -1372,19 +1372,16 @@ static int dspi_probe(struct platform_device *pdev) } } - dspi->clk = devm_clk_get(&pdev->dev, "dspi"); + dspi->clk = devm_clk_get_enabled(&pdev->dev, "dspi"); if (IS_ERR(dspi->clk)) { ret = PTR_ERR(dspi->clk); dev_err(&pdev->dev, "unable to get clock\n"); goto out_ctlr_put; } - ret = clk_prepare_enable(dspi->clk); - if (ret) - goto out_ctlr_put; ret = dspi_init(dspi); if (ret) - goto out_clk_put; + goto out_ctlr_put; dspi->irq = platform_get_irq(pdev, 0); if (dspi->irq <= 0) { @@ -1400,7 +1397,7 @@ static int dspi_probe(struct platform_device *pdev) IRQF_SHARED, pdev->name, dspi); if (ret < 0) { dev_err(&pdev->dev, "Unable to attach DSPI interrupt\n"); - goto out_clk_put; + goto out_ctlr_put; } poll_mode: @@ -1432,8 +1429,6 @@ static int dspi_probe(struct platform_device *pdev) out_free_irq: if (dspi->irq) free_irq(dspi->irq, dspi); -out_clk_put: - clk_disable_unprepare(dspi->clk); out_ctlr_put: spi_controller_put(ctlr); @@ -1458,7 +1453,6 @@ static void dspi_remove(struct platform_device *pdev) dspi_release_dma(dspi); if (dspi->irq) free_irq(dspi->irq, dspi); - clk_disable_unprepare(dspi->clk); } static void dspi_shutdown(struct platform_device *pdev) From patchwork Tue Aug 22 13:12:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: lizetao X-Patchwork-Id: 13360740 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 46E0EEE49B0 for ; 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Tue, 22 Aug 2023 13:14:36 +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 1qYRC0-00Fxak-08; Tue, 22 Aug 2023 13:13:09 +0000 Received: from kwepemi500012.china.huawei.com (unknown [172.30.72.56]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4RVV8T4byTzTmMj; Tue, 22 Aug 2023 21:10:49 +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 21:13:03 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , , , , Subject: [PATCH -next 14/25] spi: lantiq-ssc: Use helper function devm_clk_get_enabled() Date: Tue, 22 Aug 2023 21:12:26 +0800 Message-ID: <20230822131237.1022815-15-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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230822_061308_352015_281D934B X-CRM114-Status: GOOD ( 10.28 ) X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=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. Signed-off-by: Li Zetao --- drivers/spi/spi-lantiq-ssc.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/drivers/spi/spi-lantiq-ssc.c b/drivers/spi/spi-lantiq-ssc.c index 938e9e577e4f..18a46569ba46 100644 --- a/drivers/spi/spi-lantiq-ssc.c +++ b/drivers/spi/spi-lantiq-ssc.c @@ -932,14 +932,11 @@ static int lantiq_ssc_probe(struct platform_device *pdev) if (err) goto err_host_put; - spi->spi_clk = devm_clk_get(dev, "gate"); + spi->spi_clk = devm_clk_get_enabled(dev, "gate"); if (IS_ERR(spi->spi_clk)) { err = PTR_ERR(spi->spi_clk); goto err_host_put; } - err = clk_prepare_enable(spi->spi_clk); - if (err) - goto err_host_put; /* * Use the old clk_get_fpi() function on Lantiq platform, till it @@ -952,7 +949,7 @@ static int lantiq_ssc_probe(struct platform_device *pdev) #endif if (IS_ERR(spi->fpi_clk)) { err = PTR_ERR(spi->fpi_clk); - goto err_clk_disable; + goto err_host_put; } num_cs = 8; @@ -1010,8 +1007,6 @@ static int lantiq_ssc_probe(struct platform_device *pdev) destroy_workqueue(spi->wq); err_clk_put: clk_put(spi->fpi_clk); -err_clk_disable: - clk_disable_unprepare(spi->spi_clk); err_host_put: spi_controller_put(host); @@ -1029,7 +1024,6 @@ static void lantiq_ssc_remove(struct platform_device *pdev) hw_enter_config_mode(spi); destroy_workqueue(spi->wq); - clk_disable_unprepare(spi->spi_clk); clk_put(spi->fpi_clk); } From patchwork Tue Aug 22 13:12:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: lizetao X-Patchwork-Id: 13360741 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 0DBFBEE49A4 for ; Tue, 22 Aug 2023 13:14:44 +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=CJgCeAcF2HgxsE2lGxuYTDjmepSqNVfYSj6RJfjGMHQ=; b=1AJNw2QCkODDGK nibrBfNdrsIiLHm0rgRoc+OOlR6AYCSQ3358OHnA/zlhzWT7RhZNRUBAJ1DelLFK5yrcU5Id8phFx wdEojHjucl8Z0oKsOgJQjil/dVsWXSJA/pblyITygZa42sC3Q8BGIVguBEIhumoLEdysFOqjfZObk 7BiqBabsswJCoGZXkstnJ3+Fe/sDsiEdV2GFkd8KwlXsvXtNN7StfbXesSDhBGjWdT9YJJ3Sw3gL1 aBtQK+saS5NRrfs6rIIFQWc+vSrcuMUkpmZsjQFxbemaIqZpW+v086JediYI5bC9HIUJL1yTl4xYy NYs/22Z2bcyubzY6WpjQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qYRDR-00FzFm-1X; Tue, 22 Aug 2023 13:14:37 +0000 Received: from szxga03-in.huawei.com ([45.249.212.189]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qYRC0-00Fxar-0b; Tue, 22 Aug 2023 13:13:10 +0000 Received: from kwepemi500012.china.huawei.com (unknown [172.30.72.54]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4RVV7Y2RhDzLpDk; Tue, 22 Aug 2023 21:10:01 +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 21:13:04 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , , , , Subject: [PATCH -next 15/25] spi: meson-spicc: Use helper function devm_clk_get_enabled() Date: Tue, 22 Aug 2023 21:12:27 +0800 Message-ID: <20230822131237.1022815-16-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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230822_061308_772699_44046106 X-CRM114-Status: UNSURE ( 9.60 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=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. Signed-off-by: Li Zetao --- drivers/spi/spi-meson-spicc.c | 33 ++++++--------------------------- 1 file changed, 6 insertions(+), 27 deletions(-) diff --git a/drivers/spi/spi-meson-spicc.c b/drivers/spi/spi-meson-spicc.c index 43d134f4b42b..1f2d26254e03 100644 --- a/drivers/spi/spi-meson-spicc.c +++ b/drivers/spi/spi-meson-spicc.c @@ -820,7 +820,7 @@ static int meson_spicc_probe(struct platform_device *pdev) goto out_master; } - spicc->core = devm_clk_get(&pdev->dev, "core"); + spicc->core = devm_clk_get_enabled(&pdev->dev, "core"); if (IS_ERR(spicc->core)) { dev_err(&pdev->dev, "core clock request failed\n"); ret = PTR_ERR(spicc->core); @@ -828,7 +828,7 @@ static int meson_spicc_probe(struct platform_device *pdev) } if (spicc->data->has_pclk) { - spicc->pclk = devm_clk_get(&pdev->dev, "pclk"); + spicc->pclk = devm_clk_get_enabled(&pdev->dev, "pclk"); if (IS_ERR(spicc->pclk)) { dev_err(&pdev->dev, "pclk clock request failed\n"); ret = PTR_ERR(spicc->pclk); @@ -836,22 +836,10 @@ static int meson_spicc_probe(struct platform_device *pdev) } } - ret = clk_prepare_enable(spicc->core); - if (ret) { - dev_err(&pdev->dev, "core clock enable failed\n"); - goto out_master; - } - - ret = clk_prepare_enable(spicc->pclk); - if (ret) { - dev_err(&pdev->dev, "pclk clock enable failed\n"); - goto out_core_clk; - } - spicc->pinctrl = devm_pinctrl_get(&pdev->dev); if (IS_ERR(spicc->pinctrl)) { ret = PTR_ERR(spicc->pinctrl); - goto out_clk; + goto out_master; } device_reset_optional(&pdev->dev); @@ -878,31 +866,25 @@ static int meson_spicc_probe(struct platform_device *pdev) ret = meson_spicc_pow2_clk_init(spicc); if (ret) { dev_err(&pdev->dev, "pow2 clock registration failed\n"); - goto out_clk; + goto out_master; } if (spicc->data->has_enhance_clk_div) { ret = meson_spicc_enh_clk_init(spicc); if (ret) { dev_err(&pdev->dev, "clock registration failed\n"); - goto out_clk; + goto out_master; } } ret = devm_spi_register_master(&pdev->dev, master); if (ret) { dev_err(&pdev->dev, "spi master registration failed\n"); - goto out_clk; + goto out_master; } return 0; -out_clk: - clk_disable_unprepare(spicc->pclk); - -out_core_clk: - clk_disable_unprepare(spicc->core); - out_master: spi_master_put(master); @@ -916,9 +898,6 @@ static void meson_spicc_remove(struct platform_device *pdev) /* Disable SPI */ writel(0, spicc->base + SPICC_CONREG); - clk_disable_unprepare(spicc->core); - clk_disable_unprepare(spicc->pclk); - spi_master_put(spicc->master); } From patchwork Tue Aug 22 13:12:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: lizetao X-Patchwork-Id: 13360742 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 D83F1EE4993 for ; Tue, 22 Aug 2023 13:15:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; 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Tue, 22 Aug 2023 13:13:12 +0000 Received: from kwepemi500012.china.huawei.com (unknown [172.30.72.57]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4RVV9Q1xf4z1L9Lx; Tue, 22 Aug 2023 21:11:38 +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 21:13:05 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , , , , Subject: [PATCH -next 16/25] spi: spi-meson-spifc: Use helper function devm_clk_get_enabled() Date: Tue, 22 Aug 2023 21:12:28 +0800 Message-ID: <20230822131237.1022815-17-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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230822_061311_260020_BD4BF812 X-CRM114-Status: GOOD ( 10.17 ) X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=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. Moreover, the lable "out_clk" no longer makes sense, rename it to "out_pm". Signed-off-by: Li Zetao --- drivers/spi/spi-meson-spifc.c | 17 +++-------------- 1 file changed, 3 insertions(+), 14 deletions(-) diff --git a/drivers/spi/spi-meson-spifc.c b/drivers/spi/spi-meson-spifc.c index 06626f406f68..d70a18885b49 100644 --- a/drivers/spi/spi-meson-spifc.c +++ b/drivers/spi/spi-meson-spifc.c @@ -312,19 +312,13 @@ static int meson_spifc_probe(struct platform_device *pdev) goto out_err; } - spifc->clk = devm_clk_get(spifc->dev, NULL); + spifc->clk = devm_clk_get_enabled(spifc->dev, NULL); if (IS_ERR(spifc->clk)) { dev_err(spifc->dev, "missing clock\n"); ret = PTR_ERR(spifc->clk); goto out_err; } - ret = clk_prepare_enable(spifc->clk); - if (ret) { - dev_err(spifc->dev, "can't prepare clock\n"); - goto out_err; - } - rate = clk_get_rate(spifc->clk); master->num_chipselect = 1; @@ -343,12 +337,11 @@ static int meson_spifc_probe(struct platform_device *pdev) ret = devm_spi_register_master(spifc->dev, master); if (ret) { dev_err(spifc->dev, "failed to register spi master\n"); - goto out_clk; + goto out_pm; } return 0; -out_clk: - clk_disable_unprepare(spifc->clk); +out_pm: pm_runtime_disable(spifc->dev); out_err: spi_master_put(master); @@ -357,11 +350,7 @@ static int meson_spifc_probe(struct platform_device *pdev) static void meson_spifc_remove(struct platform_device *pdev) { - struct spi_master *master = platform_get_drvdata(pdev); - struct meson_spifc *spifc = spi_master_get_devdata(master); - pm_runtime_get_sync(&pdev->dev); - clk_disable_unprepare(spifc->clk); pm_runtime_disable(&pdev->dev); } From patchwork Tue Aug 22 13:12:29 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: lizetao X-Patchwork-Id: 13360744 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 BDCCDEE49AC for ; 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Tue, 22 Aug 2023 13:15:18 +0000 Received: from szxga03-in.huawei.com ([45.249.212.189]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qYRC3-00FxdR-0G; Tue, 22 Aug 2023 13:13:13 +0000 Received: from kwepemi500012.china.huawei.com (unknown [172.30.72.55]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4RVV7b3XwRzLpDZ; Tue, 22 Aug 2023 21:10:03 +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 21:13:06 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , , , , Subject: [PATCH -next 17/25] spi: microchip-core-qspi: Use helper function devm_clk_get_enabled() Date: Tue, 22 Aug 2023 21:12:29 +0800 Message-ID: <20230822131237.1022815-18-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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230822_061311_635139_6A96BF9E X-CRM114-Status: GOOD ( 10.91 ) X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=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. Signed-off-by: Li Zetao --- drivers/spi/spi-microchip-core-qspi.c | 29 +++++++-------------------- 1 file changed, 7 insertions(+), 22 deletions(-) diff --git a/drivers/spi/spi-microchip-core-qspi.c b/drivers/spi/spi-microchip-core-qspi.c index 4f76ddf97b10..396dfc0fa278 100644 --- a/drivers/spi/spi-microchip-core-qspi.c +++ b/drivers/spi/spi-microchip-core-qspi.c @@ -518,30 +518,23 @@ static int mchp_coreqspi_probe(struct platform_device *pdev) return dev_err_probe(&pdev->dev, PTR_ERR(qspi->regs), "failed to map registers\n"); - qspi->clk = devm_clk_get(&pdev->dev, NULL); + qspi->clk = devm_clk_get_enabled(&pdev->dev, NULL); if (IS_ERR(qspi->clk)) return dev_err_probe(&pdev->dev, PTR_ERR(qspi->clk), "could not get clock\n"); - ret = clk_prepare_enable(qspi->clk); - if (ret) - return dev_err_probe(&pdev->dev, ret, - "failed to enable clock\n"); - init_completion(&qspi->data_completion); mutex_init(&qspi->op_lock); qspi->irq = platform_get_irq(pdev, 0); - if (qspi->irq < 0) { - ret = qspi->irq; - goto out; - } + if (qspi->irq < 0) + return qspi->irq; ret = devm_request_irq(&pdev->dev, qspi->irq, mchp_coreqspi_isr, IRQF_SHARED, pdev->name, qspi); if (ret) { dev_err(&pdev->dev, "request_irq failed %d\n", ret); - goto out; + return ret; } ctlr->bits_per_word_mask = SPI_BPW_MASK(8); @@ -552,18 +545,11 @@ static int mchp_coreqspi_probe(struct platform_device *pdev) ctlr->dev.of_node = np; ret = devm_spi_register_controller(&pdev->dev, ctlr); - if (ret) { - dev_err_probe(&pdev->dev, ret, - "spi_register_controller failed\n"); - goto out; - } + if (ret) + return dev_err_probe(&pdev->dev, ret, + "spi_register_controller failed\n"); return 0; - -out: - clk_disable_unprepare(qspi->clk); - - return ret; } static void mchp_coreqspi_remove(struct platform_device *pdev) @@ -574,7 +560,6 @@ static void mchp_coreqspi_remove(struct platform_device *pdev) mchp_coreqspi_disable_ints(qspi); control &= ~CONTROL_ENABLE; writel_relaxed(control, qspi->regs + REG_CONTROL); - clk_disable_unprepare(qspi->clk); } static const struct of_device_id mchp_coreqspi_of_match[] = { From patchwork Tue Aug 22 13:12:30 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: lizetao X-Patchwork-Id: 13360743 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 C51ECEE4993 for ; Tue, 22 Aug 2023 13:15:11 +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; 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Tue, 22 Aug 2023 21:13:07 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , , , , Subject: [PATCH -next 18/25] spi: microchip-core: Use helper function devm_clk_get_enabled() Date: Tue, 22 Aug 2023 21:12:30 +0800 Message-ID: <20230822131237.1022815-19-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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230822_061311_572595_B68FC624 X-CRM114-Status: UNSURE ( 8.70 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=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. Signed-off-by: Li Zetao --- drivers/spi/spi-microchip-core.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) diff --git a/drivers/spi/spi-microchip-core.c b/drivers/spi/spi-microchip-core.c index b451cd4860ec..becdcdc9e6d1 100644 --- a/drivers/spi/spi-microchip-core.c +++ b/drivers/spi/spi-microchip-core.c @@ -539,22 +539,16 @@ static int mchp_corespi_probe(struct platform_device *pdev) return dev_err_probe(&pdev->dev, ret, "could not request irq\n"); - spi->clk = devm_clk_get(&pdev->dev, NULL); + spi->clk = devm_clk_get_enabled(&pdev->dev, NULL); if (IS_ERR(spi->clk)) return dev_err_probe(&pdev->dev, PTR_ERR(spi->clk), "could not get clk\n"); - ret = clk_prepare_enable(spi->clk); - if (ret) - return dev_err_probe(&pdev->dev, ret, - "failed to enable clock\n"); - mchp_corespi_init(master, spi); ret = devm_spi_register_master(&pdev->dev, master); if (ret) { mchp_corespi_disable(spi); - clk_disable_unprepare(spi->clk); return dev_err_probe(&pdev->dev, ret, "unable to register master for SPI controller\n"); } @@ -570,7 +564,6 @@ static void mchp_corespi_remove(struct platform_device *pdev) struct mchp_corespi *spi = spi_master_get_devdata(master); mchp_corespi_disable_ints(spi); - clk_disable_unprepare(spi->clk); mchp_corespi_disable(spi); } From patchwork Tue Aug 22 13:12:31 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: lizetao X-Patchwork-Id: 13360745 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 F2889EE49A3 for ; Tue, 22 Aug 2023 13:15:24 +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=TSkFEes3piG+4qGsZHE5EcHHfVrdL44dRM5IRlAc3fE=; b=pPLlnIZvE36+/c 5dLjU3Q6QzX7Pu0i18ZWgLytjevg5josbFjV1WAqlab/ye9AJ7e9Ej7MmnpXuBGKjzTNK54Cf8upp pc5JES7rSQe7RYPy95hpUxibxRyXBwWfBUzDjkGnXsP4BCt7YJW5syMo9tkWZDcDUbplsQInot6y6 P2fKGO4Gng79vhrUBwGg27M3XMCVo4jZwXFsmP2RwH3+zVBZnMGmKx+UPDntLxFpsRwiSDilWnzZV nPPjcPTseXnl9fQLtb3ZPnJLeH5TNTvt7a1vrNsZiGSWiwI25fVAXwz3bjLGXAp5mXPaOaaYM54wq 9HD/bp68Bk9bkW7sFGMg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qYRE8-00G01Y-0O; Tue, 22 Aug 2023 13:15:20 +0000 Received: from szxga01-in.huawei.com ([45.249.212.187]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qYRC4-00FxfF-12; Tue, 22 Aug 2023 13:13:14 +0000 Received: from kwepemi500012.china.huawei.com (unknown [172.30.72.55]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4RVV9S5WmHzrSmC; Tue, 22 Aug 2023 21:11:40 +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 21:13:08 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , , , , Subject: [PATCH -next 19/25] spi: mtk-snfi: Use helper function devm_clk_get_enabled() Date: Tue, 22 Aug 2023 21:12:31 +0800 Message-ID: <20230822131237.1022815-20-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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230822_061312_929369_F5DDF5C8 X-CRM114-Status: GOOD ( 11.69 ) X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=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. Also, devm_clk_get_optional() and clk_prepare_enable() can now be replaced by devm_clk_get_optional_enabled().Moreover, the two functions mtk_snand_enable_clk() and mtk_snand_disable_clk() no longer are used, drop them for clean code. Signed-off-by: Li Zetao --- drivers/spi/spi-mtk-snfi.c | 61 ++++++-------------------------------- 1 file changed, 9 insertions(+), 52 deletions(-) diff --git a/drivers/spi/spi-mtk-snfi.c b/drivers/spi/spi-mtk-snfi.c index 4433a8a9299f..8ad5a4764855 100644 --- a/drivers/spi/spi-mtk-snfi.c +++ b/drivers/spi/spi-mtk-snfi.c @@ -1332,42 +1332,6 @@ static const struct of_device_id mtk_snand_ids[] = { MODULE_DEVICE_TABLE(of, mtk_snand_ids); -static int mtk_snand_enable_clk(struct mtk_snand *ms) -{ - int ret; - - ret = clk_prepare_enable(ms->nfi_clk); - if (ret) { - dev_err(ms->dev, "unable to enable nfi clk\n"); - return ret; - } - ret = clk_prepare_enable(ms->pad_clk); - if (ret) { - dev_err(ms->dev, "unable to enable pad clk\n"); - goto err1; - } - ret = clk_prepare_enable(ms->nfi_hclk); - if (ret) { - dev_err(ms->dev, "unable to enable nfi hclk\n"); - goto err2; - } - - return 0; - -err2: - clk_disable_unprepare(ms->pad_clk); -err1: - clk_disable_unprepare(ms->nfi_clk); - return ret; -} - -static void mtk_snand_disable_clk(struct mtk_snand *ms) -{ - clk_disable_unprepare(ms->nfi_hclk); - clk_disable_unprepare(ms->pad_clk); - clk_disable_unprepare(ms->nfi_clk); -} - static int mtk_snand_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; @@ -1406,49 +1370,45 @@ static int mtk_snand_probe(struct platform_device *pdev) ms->dev = &pdev->dev; - ms->nfi_clk = devm_clk_get(&pdev->dev, "nfi_clk"); + ms->nfi_clk = devm_clk_get_enabled(&pdev->dev, "nfi_clk"); if (IS_ERR(ms->nfi_clk)) { ret = PTR_ERR(ms->nfi_clk); dev_err(&pdev->dev, "unable to get nfi_clk, err = %d\n", ret); goto release_ecc; } - ms->pad_clk = devm_clk_get(&pdev->dev, "pad_clk"); + ms->pad_clk = devm_clk_get_enabled(&pdev->dev, "pad_clk"); if (IS_ERR(ms->pad_clk)) { ret = PTR_ERR(ms->pad_clk); dev_err(&pdev->dev, "unable to get pad_clk, err = %d\n", ret); goto release_ecc; } - ms->nfi_hclk = devm_clk_get_optional(&pdev->dev, "nfi_hclk"); + ms->nfi_hclk = devm_clk_get_optional_enabled(&pdev->dev, "nfi_hclk"); if (IS_ERR(ms->nfi_hclk)) { ret = PTR_ERR(ms->nfi_hclk); dev_err(&pdev->dev, "unable to get nfi_hclk, err = %d\n", ret); goto release_ecc; } - ret = mtk_snand_enable_clk(ms); - if (ret) - goto release_ecc; - init_completion(&ms->op_done); ms->irq = platform_get_irq(pdev, 0); if (ms->irq < 0) { ret = ms->irq; - goto disable_clk; + goto release_ecc; } ret = devm_request_irq(ms->dev, ms->irq, mtk_snand_irq, 0x0, "mtk-snand", ms); if (ret) { dev_err(ms->dev, "failed to request snfi irq\n"); - goto disable_clk; + goto release_ecc; } ret = dma_set_mask(ms->dev, DMA_BIT_MASK(32)); if (ret) { dev_err(ms->dev, "failed to set dma mask\n"); - goto disable_clk; + goto release_ecc; } // switch to SNFI mode @@ -1472,7 +1432,7 @@ static int mtk_snand_probe(struct platform_device *pdev) ret = mtk_snand_setup_pagefmt(ms, SZ_2K, SZ_64); if (ret) { dev_err(ms->dev, "failed to set initial page format\n"); - goto disable_clk; + goto release_ecc; } // setup ECC engine @@ -1484,7 +1444,7 @@ static int mtk_snand_probe(struct platform_device *pdev) ret = nand_ecc_register_on_host_hw_engine(&ms->ecc_eng); if (ret) { dev_err(&pdev->dev, "failed to register ecc engine.\n"); - goto disable_clk; + goto release_ecc; } ctlr->num_chipselect = 1; @@ -1496,12 +1456,10 @@ static int mtk_snand_probe(struct platform_device *pdev) ret = spi_register_controller(ctlr); if (ret) { dev_err(&pdev->dev, "spi_register_controller failed.\n"); - goto disable_clk; + goto release_ecc; } return 0; -disable_clk: - mtk_snand_disable_clk(ms); release_ecc: mtk_ecc_release(ms->ecc); return ret; @@ -1513,7 +1471,6 @@ static void mtk_snand_remove(struct platform_device *pdev) struct mtk_snand *ms = spi_controller_get_devdata(ctlr); spi_unregister_controller(ctlr); - mtk_snand_disable_clk(ms); mtk_ecc_release(ms->ecc); kfree(ms->buf); } From patchwork Tue Aug 22 13:12:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: lizetao X-Patchwork-Id: 13360746 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 72ABFEE49A4 for ; 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Tue, 22 Aug 2023 13:15:26 +0000 Received: from szxga01-in.huawei.com ([45.249.212.187]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qYRC5-00FxgX-1d; Tue, 22 Aug 2023 13:13:15 +0000 Received: from kwepemi500012.china.huawei.com (unknown [172.30.72.56]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4RVV9T65q9zrSW6; Tue, 22 Aug 2023 21:11:41 +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 21:13:09 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , , , , Subject: [PATCH -next 20/25] spi: npcm-fiu: Use helper function devm_clk_get_enabled() Date: Tue, 22 Aug 2023 21:12:32 +0800 Message-ID: <20230822131237.1022815-21-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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230822_061314_099715_AA384586 X-CRM114-Status: GOOD ( 10.16 ) X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=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. Signed-off-by: Li Zetao --- drivers/spi/spi-npcm-fiu.c | 14 +++----------- 1 file changed, 3 insertions(+), 11 deletions(-) diff --git a/drivers/spi/spi-npcm-fiu.c b/drivers/spi/spi-npcm-fiu.c index 0ca21ff0e9cc..1a5277ff349f 100644 --- a/drivers/spi/spi-npcm-fiu.c +++ b/drivers/spi/spi-npcm-fiu.c @@ -699,7 +699,7 @@ static int npcm_fiu_probe(struct platform_device *pdev) struct spi_controller *ctrl; struct npcm_fiu_spi *fiu; void __iomem *regbase; - int id, ret; + int id; ctrl = devm_spi_alloc_host(dev, sizeof(*fiu)); if (!ctrl) @@ -737,7 +737,7 @@ static int npcm_fiu_probe(struct platform_device *pdev) fiu->res_mem = platform_get_resource_byname(pdev, IORESOURCE_MEM, "memory"); - fiu->clk = devm_clk_get(dev, NULL); + fiu->clk = devm_clk_get_enabled(dev, NULL); if (IS_ERR(fiu->clk)) return PTR_ERR(fiu->clk); @@ -745,7 +745,6 @@ static int npcm_fiu_probe(struct platform_device *pdev) "nuvoton,spix-mode"); platform_set_drvdata(pdev, fiu); - clk_prepare_enable(fiu->clk); ctrl->mode_bits = SPI_RX_DUAL | SPI_RX_QUAD | SPI_TX_DUAL | SPI_TX_QUAD; @@ -755,18 +754,11 @@ static int npcm_fiu_probe(struct platform_device *pdev) ctrl->num_chipselect = fiu->info->max_cs; ctrl->dev.of_node = dev->of_node; - ret = devm_spi_register_controller(dev, ctrl); - if (ret) - clk_disable_unprepare(fiu->clk); - - return ret; + return devm_spi_register_controller(dev, ctrl); } static void npcm_fiu_remove(struct platform_device *pdev) { - struct npcm_fiu_spi *fiu = platform_get_drvdata(pdev); - - clk_disable_unprepare(fiu->clk); } MODULE_DEVICE_TABLE(of, npcm_fiu_dt_ids); From patchwork Tue Aug 22 13:12:33 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: lizetao X-Patchwork-Id: 13360747 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 7B1E3EE49A4 for ; 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Tue, 22 Aug 2023 13:15:29 +0000 Received: from szxga01-in.huawei.com ([45.249.212.187]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qYRC6-00FxhJ-2I; Tue, 22 Aug 2023 13:13:16 +0000 Received: from kwepemi500012.china.huawei.com (unknown [172.30.72.55]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4RVV9V6jD9zrSky; Tue, 22 Aug 2023 21:11:42 +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 21:13:10 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , , , , Subject: [PATCH -next 21/25] spi: orion: Use helper function devm_clk_get_enabled() Date: Tue, 22 Aug 2023 21:12:33 +0800 Message-ID: <20230822131237.1022815-22-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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230822_061315_019936_A3594144 X-CRM114-Status: GOOD ( 10.49 ) X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=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. Signed-off-by: Li Zetao --- drivers/spi/spi-orion.c | 11 ++--------- 1 file changed, 2 insertions(+), 9 deletions(-) diff --git a/drivers/spi/spi-orion.c b/drivers/spi/spi-orion.c index faf2764b91a8..d22bb67fee00 100644 --- a/drivers/spi/spi-orion.c +++ b/drivers/spi/spi-orion.c @@ -688,21 +688,17 @@ static int orion_spi_probe(struct platform_device *pdev) devdata = devdata ? devdata : &orion_spi_dev_data; spi->devdata = devdata; - spi->clk = devm_clk_get(&pdev->dev, NULL); + spi->clk = devm_clk_get_enabled(&pdev->dev, NULL); if (IS_ERR(spi->clk)) { status = PTR_ERR(spi->clk); goto out; } - status = clk_prepare_enable(spi->clk); - if (status) - goto out; - /* The following clock is only used by some SoCs */ spi->axi_clk = devm_clk_get(&pdev->dev, "axi"); if (PTR_ERR(spi->axi_clk) == -EPROBE_DEFER) { status = -EPROBE_DEFER; - goto out_rel_clk; + goto out; } if (!IS_ERR(spi->axi_clk)) clk_prepare_enable(spi->axi_clk); @@ -795,8 +791,6 @@ static int orion_spi_probe(struct platform_device *pdev) pm_runtime_disable(&pdev->dev); out_rel_axi_clk: clk_disable_unprepare(spi->axi_clk); -out_rel_clk: - clk_disable_unprepare(spi->clk); out: spi_master_put(master); return status; @@ -810,7 +804,6 @@ static void orion_spi_remove(struct platform_device *pdev) pm_runtime_get_sync(&pdev->dev); clk_disable_unprepare(spi->axi_clk); - clk_disable_unprepare(spi->clk); spi_unregister_master(master); pm_runtime_disable(&pdev->dev); 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: 13360748 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 D8BA8EE49A4 for ; Tue, 22 Aug 2023 13:16:00 +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=nvQ/Hrm9PpACBVL0xoC/HSubO7xwqKLUacmgqw8U2wg=; b=MUVbZpBUzMFVNj LfKGrjYAl7lebtxHTpxdq8unZJZsx7Vp2kjSdTVSKZqtmA7cZPKk/EN1atmn1jyDpKIY1EF2/yITb c6GbOEKK825Ei0uTbSHQs2z7WV+7z+8s42aM0UbPpzNdtXdrbX3vdo/LMZRFrRB2iZUr9ZgrWQIZN hqFMa9kZ7WemjVbXIeKhzbKVDpeDz00Otj86iIHMRasFp1LDZ54lqGjTghB4lWAirYkG/71qZv7+c KW8elaMYd/DXcNJjgVilCoAMZsLWhZOdGNTQvIA+8o6irF6lv+WZKjoCC0KmLSAKfn4YpUTq11aAE tpddZjwqtSp7TdKw7Ssg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qYREi-00G0ii-30; Tue, 22 Aug 2023 13:15:56 +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 1qYRC7-00Fxi9-24; Tue, 22 Aug 2023 13:13:17 +0000 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230822_061316_132261_76371C5C X-CRM114-Status: UNSURE ( 9.82 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=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. 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[] = { From patchwork Tue Aug 22 13:12:35 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: lizetao X-Patchwork-Id: 13360749 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 27A94EE4993 for ; Tue, 22 Aug 2023 13:16:05 +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; 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Tue, 22 Aug 2023 21:13:12 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , , , , Subject: [PATCH -next 23/25] spi: pic32: Use helper function devm_clk_get_enabled() Date: Tue, 22 Aug 2023 21:12:35 +0800 Message-ID: <20230822131237.1022815-24-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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230822_061316_871973_994B51B0 X-CRM114-Status: UNSURE ( 8.95 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=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. Signed-off-by: Li Zetao --- drivers/spi/spi-pic32.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) diff --git a/drivers/spi/spi-pic32.c b/drivers/spi/spi-pic32.c index e9b4c9cb97fb..2b0680974cba 100644 --- a/drivers/spi/spi-pic32.c +++ b/drivers/spi/spi-pic32.c @@ -730,17 +730,13 @@ static int pic32_spi_hw_probe(struct platform_device *pdev, return pic32s->tx_irq; /* get clock */ - pic32s->clk = devm_clk_get(&pdev->dev, "mck0"); + pic32s->clk = devm_clk_get_enabled(&pdev->dev, "mck0"); if (IS_ERR(pic32s->clk)) { dev_err(&pdev->dev, "clk not found\n"); ret = PTR_ERR(pic32s->clk); goto err_unmap_mem; } - ret = clk_prepare_enable(pic32s->clk); - if (ret) - goto err_unmap_mem; - pic32_spi_hw_init(pic32s); return 0; @@ -837,7 +833,6 @@ static int pic32_spi_probe(struct platform_device *pdev) err_bailout: pic32_spi_dma_unprep(pic32s); - clk_disable_unprepare(pic32s->clk); err_master: spi_master_put(master); return ret; @@ -849,7 +844,6 @@ static void pic32_spi_remove(struct platform_device *pdev) pic32s = platform_get_drvdata(pdev); pic32_spi_disable(pic32s); - clk_disable_unprepare(pic32s->clk); pic32_spi_dma_unprep(pic32s); } From patchwork Tue Aug 22 13:12:36 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: lizetao X-Patchwork-Id: 13360750 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 7C1ABEE49A4 for ; Tue, 22 Aug 2023 13:16:22 +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=Ptt8nqe2m48Ycqvz15LtG15vEo20CJC1vRk5YuCErxE=; b=b2tjQ0B6RoPoAU S5Ls4OrgCyeQvtTB++d3QbDe47mwM1LYcxDxRMK+1ruQ0mBb1A1RZfdKCC0+a7zsNl82v556coTNK 3O+YXL7uy3zWmeK9z06R62EcLRoPomJ0TIrUvWxFwFLMlsz4ifF+oJzdwAzexNPRAlR8OZzqB3tAq AHRX1nF+MNBMn0rV/+dLCwX4LXUTleacS4/R08Bpt7lQnynA3C1tTKpornQsaPgyLVj0B7YAi9n1y tBydMLHAMA6EyYGhnakDTpuCS49ZzppDkJ9ZThNCWFaHEG4QfO02oEG2EbRPlFeU7R1wXu3irAXaG 0gnGiSiVwpI7TlolYOHg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qYRF1-00G12h-0C; Tue, 22 Aug 2023 13:16:15 +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 1qYRC9-00FxkD-2V; Tue, 22 Aug 2023 13:13:19 +0000 Received: from kwepemi500012.china.huawei.com (unknown [172.30.72.53]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4RVV8h3386zTmLG; Tue, 22 Aug 2023 21:11:00 +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 21:13:13 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , , , , Subject: [PATCH -next 24/25] spi: spl022: Use helper function devm_clk_get_enabled() Date: Tue, 22 Aug 2023 21:12:36 +0800 Message-ID: <20230822131237.1022815-25-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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230822_061318_379706_1BB27493 X-CRM114-Status: UNSURE ( 8.39 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=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. Moreover, the label "err_no_clk_en" is no used, drop it for clean code. Signed-off-by: Li Zetao Reviewed-by: Linus Walleij --- drivers/spi/spi-pl022.c | 21 ++++++--------------- 1 file changed, 6 insertions(+), 15 deletions(-) diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c index 1af75eff26b6..468a7fea9091 100644 --- a/drivers/spi/spi-pl022.c +++ b/drivers/spi/spi-pl022.c @@ -2168,19 +2168,13 @@ static int pl022_probe(struct amba_device *adev, const struct amba_id *id) dev_info(&adev->dev, "mapped registers from %pa to %p\n", &adev->res.start, pl022->virtbase); - pl022->clk = devm_clk_get(&adev->dev, NULL); + pl022->clk = devm_clk_get_enabled(&adev->dev, NULL); if (IS_ERR(pl022->clk)) { status = PTR_ERR(pl022->clk); dev_err(&adev->dev, "could not retrieve SSP/SPI bus clock\n"); goto err_no_clk; } - status = clk_prepare_enable(pl022->clk); - if (status) { - dev_err(&adev->dev, "could not enable SSP/SPI bus clock\n"); - goto err_no_clk_en; - } - /* Initialize transfer pump */ tasklet_init(&pl022->pump_transfers, pump_transfers, (unsigned long)pl022); @@ -2236,16 +2230,14 @@ static int pl022_probe(struct amba_device *adev, const struct amba_id *id) return 0; - err_spi_register: +err_spi_register: if (platform_info->enable_dma) pl022_dma_remove(pl022); - err_no_irq: - clk_disable_unprepare(pl022->clk); - err_no_clk_en: - err_no_clk: - err_no_ioremap: +err_no_irq: +err_no_clk: +err_no_ioremap: amba_release_regions(adev); - err_no_ioregion: +err_no_ioregion: spi_master_put(master); return status; } @@ -2268,7 +2260,6 @@ pl022_remove(struct amba_device *adev) if (pl022->master_info->enable_dma) pl022_dma_remove(pl022); - clk_disable_unprepare(pl022->clk); amba_release_regions(adev); tasklet_disable(&pl022->pump_transfers); } From patchwork Tue Aug 22 13:12:37 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: lizetao X-Patchwork-Id: 13360752 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 81B18EE49A3 for ; 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Tue, 22 Aug 2023 13:16:27 +0000 Received: from szxga01-in.huawei.com ([45.249.212.187]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qYRCA-00FxlB-2p; Tue, 22 Aug 2023 13:13:21 +0000 Received: from kwepemi500012.china.huawei.com (unknown [172.30.72.54]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4RVV706V9xztSDs; Tue, 22 Aug 2023 21:09:32 +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 21:13:15 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , , , , Subject: [PATCH -next 25/25] spi: rockchip: Use helper function devm_clk_get_enabled() Date: Tue, 22 Aug 2023 21:12:37 +0800 Message-ID: <20230822131237.1022815-26-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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230822_061319_430132_43099D50 X-CRM114-Status: GOOD ( 10.66 ) X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=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. Signed-off-by: Li Zetao Reviewed-by: Heiko Stuebner --- drivers/spi/spi-rockchip.c | 30 +++++------------------------- 1 file changed, 5 insertions(+), 25 deletions(-) diff --git a/drivers/spi/spi-rockchip.c b/drivers/spi/spi-rockchip.c index a37943847e81..cdbb86049d59 100644 --- a/drivers/spi/spi-rockchip.c +++ b/drivers/spi/spi-rockchip.c @@ -782,42 +782,30 @@ static int rockchip_spi_probe(struct platform_device *pdev) goto err_put_ctlr; } - rs->apb_pclk = devm_clk_get(&pdev->dev, "apb_pclk"); + rs->apb_pclk = devm_clk_get_enabled(&pdev->dev, "apb_pclk"); if (IS_ERR(rs->apb_pclk)) { dev_err(&pdev->dev, "Failed to get apb_pclk\n"); ret = PTR_ERR(rs->apb_pclk); goto err_put_ctlr; } - rs->spiclk = devm_clk_get(&pdev->dev, "spiclk"); + rs->spiclk = devm_clk_get_enabled(&pdev->dev, "spiclk"); if (IS_ERR(rs->spiclk)) { dev_err(&pdev->dev, "Failed to get spi_pclk\n"); ret = PTR_ERR(rs->spiclk); goto err_put_ctlr; } - ret = clk_prepare_enable(rs->apb_pclk); - if (ret < 0) { - dev_err(&pdev->dev, "Failed to enable apb_pclk\n"); - goto err_put_ctlr; - } - - ret = clk_prepare_enable(rs->spiclk); - if (ret < 0) { - dev_err(&pdev->dev, "Failed to enable spi_clk\n"); - goto err_disable_apbclk; - } - spi_enable_chip(rs, false); ret = platform_get_irq(pdev, 0); if (ret < 0) - goto err_disable_spiclk; + goto err_put_ctlr; ret = devm_request_threaded_irq(&pdev->dev, ret, rockchip_spi_isr, NULL, IRQF_ONESHOT, dev_name(&pdev->dev), ctlr); if (ret) - goto err_disable_spiclk; + goto err_put_ctlr; rs->dev = &pdev->dev; rs->freq = clk_get_rate(rs->spiclk); @@ -843,7 +831,7 @@ static int rockchip_spi_probe(struct platform_device *pdev) if (!rs->fifo_len) { dev_err(&pdev->dev, "Failed to get fifo length\n"); ret = -EINVAL; - goto err_disable_spiclk; + goto err_put_ctlr; } pm_runtime_set_autosuspend_delay(&pdev->dev, ROCKCHIP_AUTOSUSPEND_TIMEOUT); @@ -937,10 +925,6 @@ static int rockchip_spi_probe(struct platform_device *pdev) dma_release_channel(ctlr->dma_tx); err_disable_pm_runtime: pm_runtime_disable(&pdev->dev); -err_disable_spiclk: - clk_disable_unprepare(rs->spiclk); -err_disable_apbclk: - clk_disable_unprepare(rs->apb_pclk); err_put_ctlr: spi_controller_put(ctlr); @@ -950,13 +934,9 @@ static int rockchip_spi_probe(struct platform_device *pdev) static void rockchip_spi_remove(struct platform_device *pdev) { struct spi_controller *ctlr = spi_controller_get(platform_get_drvdata(pdev)); - struct rockchip_spi *rs = spi_controller_get_devdata(ctlr); pm_runtime_get_sync(&pdev->dev); - clk_disable_unprepare(rs->spiclk); - clk_disable_unprepare(rs->apb_pclk); - pm_runtime_put_noidle(&pdev->dev); pm_runtime_disable(&pdev->dev); pm_runtime_set_suspended(&pdev->dev);