usb: musb: am35x: give it a context structure (0919dfc1) · Commits · 戴 / test

drivers/usb/musb/am35x.c

+28 −9

Original line number	Diff line number	Diff line
		@@ -82,6 +82,11 @@

		#define USB_MENTOR_CORE_OFFSET 0x400

		struct am35x_glue {
		struct device *dev;
		struct platform_device *musb;
		};

		static inline void phy_on(void)
		{
		unsigned long timeout = jiffies + msecs_to_jiffies(100);
		@@ -544,55 +549,69 @@ static int __init am35x_probe(struct platform_device *pdev)
		{
		struct musb_hdrc_platform_data *pdata = pdev->dev.platform_data;
		struct platform_device *musb;
		struct am35x_glue *glue;

		int ret = -ENOMEM;

		glue = kzalloc(sizeof(*glue), GFP_KERNEL);
		if (!glue) {
		dev_err(&pdev->dev, "failed to allocate glue context\n");
		goto err0;
		}

		musb = platform_device_alloc("musb-hdrc", -1);
		if (!musb) {
		dev_err(&pdev->dev, "failed to allocate musb device\n");
		goto err0;
		goto err1;
		}

		musb->dev.parent = &pdev->dev;
		musb->dev.dma_mask = &am35x_dmamask;
		musb->dev.coherent_dma_mask = am35x_dmamask;

		platform_set_drvdata(pdev, musb);
		glue->dev = &pdev->dev;
		glue->musb = musb;

		platform_set_drvdata(pdev, glue);

		ret = platform_device_add_resources(musb, pdev->resource,
		pdev->num_resources);
		if (ret) {
		dev_err(&pdev->dev, "failed to add resources\n");
		goto err1;
		goto err2;
		}

		ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
		if (ret) {
		dev_err(&pdev->dev, "failed to add platform_data\n");
		goto err1;
		goto err2;
		}

		ret = platform_device_add(musb);
		if (ret) {
		dev_err(&pdev->dev, "failed to register musb device\n");
		goto err1;
		goto err2;
		}

		return 0;

		err1:
		err2:
		platform_device_put(musb);

		err1:
		kfree(glue);

		err0:
		return ret;
		}

		static int __exit am35x_remove(struct platform_device *pdev)
		{
		struct platform_device *musb = platform_get_drvdata(pdev);
		struct am35x_glue *glue = platform_get_drvdata(pdev);

		platform_device_del(musb);
		platform_device_put(musb);
		platform_device_del(glue->musb);
		platform_device_put(glue->musb);
		kfree(glue);

		return 0;
		}

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