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https://github.com/edk2-porting/linux-next.git
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usb: dwc3: use devm_xxx functions
This patch enables to use devm_xxx functions during probing driver. The devm_xxx series functions are able to release resource when the driver is detatched. We can remove several codes to release resources in the probe function. Signed-off-by: Chanho Park <chanho61.park@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Chanho Park
Felipe Balbi
parent
d28a9689c9
commit
802ca85067
@ -408,6 +408,7 @@ static int __devinit dwc3_probe(struct platform_device *pdev)
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struct device_node *node = pdev->dev.of_node;
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struct resource *res;
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struct dwc3 *dwc;
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struct device *dev = &pdev->dev;
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int ret = -ENOMEM;
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int irq;
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@ -417,39 +418,39 @@ static int __devinit dwc3_probe(struct platform_device *pdev)
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u8 mode;
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mem = kzalloc(sizeof(*dwc) + DWC3_ALIGN_MASK, GFP_KERNEL);
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mem = devm_kzalloc(dev, sizeof(*dwc) + DWC3_ALIGN_MASK, GFP_KERNEL);
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if (!mem) {
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dev_err(&pdev->dev, "not enough memory\n");
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goto err0;
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dev_err(dev, "not enough memory\n");
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return -ENOMEM;
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}
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dwc = PTR_ALIGN(mem, DWC3_ALIGN_MASK + 1);
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dwc->mem = mem;
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res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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if (!res) {
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dev_err(&pdev->dev, "missing resource\n");
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goto err1;
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dev_err(dev, "missing resource\n");
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return -ENODEV;
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}
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dwc->res = res;
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res = request_mem_region(res->start, resource_size(res),
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dev_name(&pdev->dev));
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res = devm_request_mem_region(dev, res->start, resource_size(res),
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dev_name(dev));
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if (!res) {
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dev_err(&pdev->dev, "can't request mem region\n");
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goto err1;
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dev_err(dev, "can't request mem region\n");
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return -ENOMEM;
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}
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regs = ioremap(res->start, resource_size(res));
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regs = devm_ioremap(dev, res->start, resource_size(res));
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if (!regs) {
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dev_err(&pdev->dev, "ioremap failed\n");
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goto err2;
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dev_err(dev, "ioremap failed\n");
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return -ENOMEM;
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}
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irq = platform_get_irq(pdev, 0);
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if (irq < 0) {
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dev_err(&pdev->dev, "missing IRQ\n");
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goto err3;
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dev_err(dev, "missing IRQ\n");
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return -ENODEV;
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}
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spin_lock_init(&dwc->lock);
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@ -457,7 +458,7 @@ static int __devinit dwc3_probe(struct platform_device *pdev)
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dwc->regs = regs;
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dwc->regs_size = resource_size(res);
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dwc->dev = &pdev->dev;
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dwc->dev = dev;
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dwc->irq = irq;
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if (!strncmp("super", maximum_speed, 5))
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@ -474,14 +475,14 @@ static int __devinit dwc3_probe(struct platform_device *pdev)
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if (of_get_property(node, "tx-fifo-resize", NULL))
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dwc->needs_fifo_resize = true;
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pm_runtime_enable(&pdev->dev);
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pm_runtime_get_sync(&pdev->dev);
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pm_runtime_forbid(&pdev->dev);
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pm_runtime_enable(dev);
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pm_runtime_get_sync(dev);
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pm_runtime_forbid(dev);
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ret = dwc3_core_init(dwc);
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if (ret) {
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dev_err(&pdev->dev, "failed to initialize core\n");
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goto err3;
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dev_err(dev, "failed to initialize core\n");
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return ret;
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}
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mode = DWC3_MODE(dwc->hwparams.hwparams0);
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@ -491,49 +492,49 @@ static int __devinit dwc3_probe(struct platform_device *pdev)
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dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_DEVICE);
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ret = dwc3_gadget_init(dwc);
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if (ret) {
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dev_err(&pdev->dev, "failed to initialize gadget\n");
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goto err4;
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dev_err(dev, "failed to initialize gadget\n");
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goto err1;
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}
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break;
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case DWC3_MODE_HOST:
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dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_HOST);
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ret = dwc3_host_init(dwc);
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if (ret) {
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dev_err(&pdev->dev, "failed to initialize host\n");
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goto err4;
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dev_err(dev, "failed to initialize host\n");
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goto err1;
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}
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break;
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case DWC3_MODE_DRD:
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dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_OTG);
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ret = dwc3_host_init(dwc);
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if (ret) {
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dev_err(&pdev->dev, "failed to initialize host\n");
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goto err4;
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dev_err(dev, "failed to initialize host\n");
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goto err1;
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}
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ret = dwc3_gadget_init(dwc);
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if (ret) {
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dev_err(&pdev->dev, "failed to initialize gadget\n");
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goto err4;
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dev_err(dev, "failed to initialize gadget\n");
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goto err1;
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}
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break;
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default:
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dev_err(&pdev->dev, "Unsupported mode of operation %d\n", mode);
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goto err4;
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dev_err(dev, "Unsupported mode of operation %d\n", mode);
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goto err1;
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}
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dwc->mode = mode;
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ret = dwc3_debugfs_init(dwc);
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if (ret) {
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dev_err(&pdev->dev, "failed to initialize debugfs\n");
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goto err5;
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dev_err(dev, "failed to initialize debugfs\n");
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goto err2;
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}
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pm_runtime_allow(&pdev->dev);
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pm_runtime_allow(dev);
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return 0;
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err5:
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err2:
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switch (mode) {
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case DWC3_MODE_DEVICE:
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dwc3_gadget_exit(dwc);
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@ -550,19 +551,9 @@ err5:
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break;
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}
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err4:
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err1:
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dwc3_core_exit(dwc);
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err3:
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iounmap(regs);
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err2:
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release_mem_region(res->start, resource_size(res));
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err1:
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kfree(dwc->mem);
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err0:
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return ret;
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}
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@ -595,9 +586,6 @@ static int __devexit dwc3_remove(struct platform_device *pdev)
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}
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dwc3_core_exit(dwc);
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release_mem_region(res->start, resource_size(res));
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iounmap(dwc->regs);
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kfree(dwc->mem);
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return 0;
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}
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@ -203,6 +203,7 @@ static int __devinit dwc3_omap_probe(struct platform_device *pdev)
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struct platform_device *dwc3;
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struct dwc3_omap *omap;
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struct resource *res;
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struct device *dev = &pdev->dev;
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int devid;
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int size;
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@ -215,59 +216,57 @@ static int __devinit dwc3_omap_probe(struct platform_device *pdev)
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void __iomem *base;
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void *context;
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omap = kzalloc(sizeof(*omap), GFP_KERNEL);
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omap = devm_kzalloc(dev, sizeof(*omap), GFP_KERNEL);
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if (!omap) {
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dev_err(&pdev->dev, "not enough memory\n");
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goto err0;
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dev_err(dev, "not enough memory\n");
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return -ENOMEM;
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}
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platform_set_drvdata(pdev, omap);
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irq = platform_get_irq(pdev, 1);
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if (irq < 0) {
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dev_err(&pdev->dev, "missing IRQ resource\n");
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ret = -EINVAL;
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goto err1;
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dev_err(dev, "missing IRQ resource\n");
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return -EINVAL;
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}
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res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
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if (!res) {
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dev_err(&pdev->dev, "missing memory base resource\n");
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ret = -EINVAL;
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goto err1;
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dev_err(dev, "missing memory base resource\n");
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return -EINVAL;
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}
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base = ioremap_nocache(res->start, resource_size(res));
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base = devm_ioremap_nocache(dev, res->start, resource_size(res));
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if (!base) {
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dev_err(&pdev->dev, "ioremap failed\n");
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goto err1;
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dev_err(dev, "ioremap failed\n");
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return -ENOMEM;
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}
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devid = dwc3_get_device_id();
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if (devid < 0)
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goto err2;
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return -ENODEV;
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dwc3 = platform_device_alloc("dwc3", devid);
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if (!dwc3) {
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dev_err(&pdev->dev, "couldn't allocate dwc3 device\n");
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goto err3;
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dev_err(dev, "couldn't allocate dwc3 device\n");
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goto err1;
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}
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context = kzalloc(resource_size(res), GFP_KERNEL);
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context = devm_kzalloc(dev, resource_size(res), GFP_KERNEL);
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if (!context) {
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dev_err(&pdev->dev, "couldn't allocate dwc3 context memory\n");
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goto err4;
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dev_err(dev, "couldn't allocate dwc3 context memory\n");
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goto err2;
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}
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spin_lock_init(&omap->lock);
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dma_set_coherent_mask(&dwc3->dev, pdev->dev.coherent_dma_mask);
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dma_set_coherent_mask(&dwc3->dev, dev->coherent_dma_mask);
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dwc3->dev.parent = &pdev->dev;
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dwc3->dev.dma_mask = pdev->dev.dma_mask;
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dwc3->dev.dma_parms = pdev->dev.dma_parms;
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dwc3->dev.parent = dev;
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dwc3->dev.dma_mask = dev->dma_mask;
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dwc3->dev.dma_parms = dev->dma_parms;
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omap->resource_size = resource_size(res);
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omap->context = context;
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omap->dev = &pdev->dev;
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omap->dev = dev;
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omap->irq = irq;
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omap->base = base;
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omap->dwc3 = dwc3;
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@ -279,7 +278,7 @@ static int __devinit dwc3_omap_probe(struct platform_device *pdev)
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reg |= *utmi_mode;
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} else {
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if (!pdata) {
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dev_dbg(&pdev->dev, "missing platform data\n");
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dev_dbg(dev, "missing platform data\n");
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} else {
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switch (pdata->utmi_mode) {
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case DWC3_OMAP_UTMI_MODE_SW:
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@ -289,7 +288,7 @@ static int __devinit dwc3_omap_probe(struct platform_device *pdev)
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reg &= ~USBOTGSS_UTMI_OTG_STATUS_SW_MODE;
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break;
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default:
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dev_dbg(&pdev->dev, "UNKNOWN utmi mode %d\n",
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dev_dbg(dev, "UNKNOWN utmi mode %d\n",
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pdata->utmi_mode);
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}
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}
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@ -310,12 +309,12 @@ static int __devinit dwc3_omap_probe(struct platform_device *pdev)
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dwc3_writel(omap->base, USBOTGSS_SYSCONFIG, reg);
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ret = request_irq(omap->irq, dwc3_omap_interrupt, 0,
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ret = devm_request_irq(dev, omap->irq, dwc3_omap_interrupt, 0,
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"dwc3-omap", omap);
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if (ret) {
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dev_err(&pdev->dev, "failed to request IRQ #%d --> %d\n",
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dev_err(dev, "failed to request IRQ #%d --> %d\n",
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omap->irq, ret);
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goto err5;
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goto err2;
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}
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/* enable all IRQs */
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@ -337,37 +336,24 @@ static int __devinit dwc3_omap_probe(struct platform_device *pdev)
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ret = platform_device_add_resources(dwc3, pdev->resource,
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pdev->num_resources);
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if (ret) {
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dev_err(&pdev->dev, "couldn't add resources to dwc3 device\n");
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goto err6;
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dev_err(dev, "couldn't add resources to dwc3 device\n");
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goto err2;
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}
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ret = platform_device_add(dwc3);
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if (ret) {
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dev_err(&pdev->dev, "failed to register dwc3 device\n");
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goto err6;
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dev_err(dev, "failed to register dwc3 device\n");
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goto err2;
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}
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return 0;
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err6:
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free_irq(omap->irq, omap);
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err5:
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kfree(omap->context);
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err4:
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err2:
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platform_device_put(dwc3);
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err3:
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err1:
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dwc3_put_device_id(devid);
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err2:
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iounmap(base);
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err1:
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kfree(omap);
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err0:
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return ret;
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}
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@ -378,11 +364,6 @@ static int __devexit dwc3_omap_remove(struct platform_device *pdev)
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platform_device_unregister(omap->dwc3);
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dwc3_put_device_id(omap->dwc3->id);
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free_irq(omap->irq, omap);
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iounmap(omap->base);
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kfree(omap->context);
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kfree(omap);
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return 0;
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}
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@ -61,19 +61,20 @@ static int __devinit dwc3_pci_probe(struct pci_dev *pci,
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struct dwc3_pci *glue;
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int ret = -ENOMEM;
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int devid;
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struct device *dev = &pci->dev;
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glue = kzalloc(sizeof(*glue), GFP_KERNEL);
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glue = devm_kzalloc(dev, sizeof(*glue), GFP_KERNEL);
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if (!glue) {
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dev_err(&pci->dev, "not enough memory\n");
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goto err0;
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dev_err(dev, "not enough memory\n");
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return -ENOMEM;
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}
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glue->dev = &pci->dev;
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glue->dev = dev;
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ret = pci_enable_device(pci);
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if (ret) {
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dev_err(&pci->dev, "failed to enable pci device\n");
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goto err1;
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dev_err(dev, "failed to enable pci device\n");
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return -ENODEV;
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}
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pci_set_power_state(pci, PCI_D0);
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@ -81,12 +82,12 @@ static int __devinit dwc3_pci_probe(struct pci_dev *pci,
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devid = dwc3_get_device_id();
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if (devid < 0)
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goto err2;
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goto err1;
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dwc3 = platform_device_alloc("dwc3", devid);
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if (!dwc3) {
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dev_err(&pci->dev, "couldn't allocate dwc3 device\n");
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goto err3;
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dev_err(dev, "couldn't allocate dwc3 device\n");
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goto err1;
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}
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memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res));
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@ -102,41 +103,37 @@ static int __devinit dwc3_pci_probe(struct pci_dev *pci,
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ret = platform_device_add_resources(dwc3, res, ARRAY_SIZE(res));
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if (ret) {
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dev_err(&pci->dev, "couldn't add resources to dwc3 device\n");
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goto err4;
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dev_err(dev, "couldn't add resources to dwc3 device\n");
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goto err2;
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}
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pci_set_drvdata(pci, glue);
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dma_set_coherent_mask(&dwc3->dev, pci->dev.coherent_dma_mask);
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dma_set_coherent_mask(&dwc3->dev, dev->coherent_dma_mask);
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dwc3->dev.dma_mask = pci->dev.dma_mask;
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dwc3->dev.dma_parms = pci->dev.dma_parms;
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dwc3->dev.parent = &pci->dev;
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dwc3->dev.dma_mask = dev->dma_mask;
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dwc3->dev.dma_parms = dev->dma_parms;
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dwc3->dev.parent = dev;
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glue->dwc3 = dwc3;
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ret = platform_device_add(dwc3);
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if (ret) {
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dev_err(&pci->dev, "failed to register dwc3 device\n");
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goto err4;
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dev_err(dev, "failed to register dwc3 device\n");
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goto err3;
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}
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return 0;
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err4:
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err3:
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pci_set_drvdata(pci, NULL);
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platform_device_put(dwc3);
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err3:
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err2:
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dwc3_put_device_id(devid);
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err2:
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err1:
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pci_disable_device(pci);
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err1:
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kfree(glue);
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err0:
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return ret;
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}
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|
||||
@ -148,7 +145,6 @@ static void __devexit dwc3_pci_remove(struct pci_dev *pci)
|
||||
platform_device_unregister(glue->dwc3);
|
||||
pci_set_drvdata(pci, NULL);
|
||||
pci_disable_device(pci);
|
||||
kfree(glue);
|
||||
}
|
||||
|
||||
static DEFINE_PCI_DEVICE_TABLE(dwc3_pci_id_table) = {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user