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[79.139.233.37]) by smtp.gmail.com with ESMTPSA id y14sm28353271ljk.46.2020.01.05.17.17.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 05 Jan 2020 17:17:27 -0800 (PST) From: Dmitry Osipenko To: Laxman Dewangan , Vinod Koul , Dan Williams , Thierry Reding , Jonathan Hunter , =?UTF-8?q?Micha=C5=82=20Miros=C5=82aw?= Cc: dmaengine@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 07/13] dmaengine: tegra-apb: Use devm_request_irq Date: Mon, 6 Jan 2020 04:17:02 +0300 Message-Id: <20200106011708.7463-8-digetx@gmail.com> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20200106011708.7463-1-digetx@gmail.com> References: <20200106011708.7463-1-digetx@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Use resource-managed variant of request_irq for brevity. Signed-off-by: Dmitry Osipenko --- drivers/dma/tegra20-apb-dma.c | 35 +++++++++++------------------------ 1 file changed, 11 insertions(+), 24 deletions(-) diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c index f44291207928..dff21e80ffa4 100644 --- a/drivers/dma/tegra20-apb-dma.c +++ b/drivers/dma/tegra20-apb-dma.c @@ -182,7 +182,6 @@ struct tegra_dma_channel { char name[12]; bool config_init; int id; - int irq; void __iomem *chan_addr; spinlock_t lock; bool busy; @@ -1380,7 +1379,6 @@ static const struct tegra_dma_chip_data tegra148_dma_chip_data = { static int tegra_dma_probe(struct platform_device *pdev) { - struct resource *res; struct tegra_dma *tdma; int ret; int i; @@ -1446,25 +1444,27 @@ static int tegra_dma_probe(struct platform_device *pdev) INIT_LIST_HEAD(&tdma->dma_dev.channels); for (i = 0; i < cdata->nr_channels; i++) { struct tegra_dma_channel *tdc = &tdma->channels[i]; + int irq; tdc->chan_addr = tdma->base_addr + TEGRA_APBDMA_CHANNEL_BASE_ADD_OFFSET + (i * cdata->channel_reg_size); - res = platform_get_resource(pdev, IORESOURCE_IRQ, i); - if (!res) { - ret = -EINVAL; + irq = platform_get_irq(pdev, i); + if (irq < 0) { + ret = irq; dev_err(&pdev->dev, "No irq resource for chan %d\n", i); - goto err_irq; + goto err_pm_disable; } - tdc->irq = res->start; + snprintf(tdc->name, sizeof(tdc->name), "apbdma.%d", i); - ret = request_irq(tdc->irq, tegra_dma_isr, 0, tdc->name, tdc); + ret = devm_request_irq(&pdev->dev, irq, tegra_dma_isr, 0, + tdc->name, tdc); if (ret) { dev_err(&pdev->dev, "request_irq failed with err %d channel %d\n", ret, i); - goto err_irq; + goto err_pm_disable; } tdc->dma_chan.device = &tdma->dma_dev; @@ -1517,7 +1517,7 @@ static int tegra_dma_probe(struct platform_device *pdev) if (ret < 0) { dev_err(&pdev->dev, "Tegra20 APB DMA driver registration failed %d\n", ret); - goto err_irq; + goto err_pm_disable; } ret = of_dma_controller_register(pdev->dev.of_node, @@ -1534,13 +1534,7 @@ static int tegra_dma_probe(struct platform_device *pdev) err_unregister_dma_dev: dma_async_device_unregister(&tdma->dma_dev); -err_irq: - while (--i >= 0) { - struct tegra_dma_channel *tdc = &tdma->channels[i]; - - free_irq(tdc->irq, tdc); - } - +err_pm_disable: pm_runtime_disable(&pdev->dev); if (!pm_runtime_status_suspended(&pdev->dev)) tegra_dma_runtime_suspend(&pdev->dev); @@ -1550,16 +1544,9 @@ static int tegra_dma_probe(struct platform_device *pdev) static int tegra_dma_remove(struct platform_device *pdev) { struct tegra_dma *tdma = platform_get_drvdata(pdev); - int i; - struct tegra_dma_channel *tdc; dma_async_device_unregister(&tdma->dma_dev); - for (i = 0; i < tdma->chip_data->nr_channels; ++i) { - tdc = &tdma->channels[i]; - free_irq(tdc->irq, tdc); - } - pm_runtime_disable(&pdev->dev); if (!pm_runtime_status_suspended(&pdev->dev)) tegra_dma_runtime_suspend(&pdev->dev); -- 2.24.0