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usb: dwc3: Keeping 'resource' related code together

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Putting together the code related to getting the 'IORESOURCE_MEM'
and assigning the same to dwc->xhci_resources, for increasing
the readability.

Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Vivek Gautam 2014-06-04 14:34:52 +05:30 committed by Felipe Balbi
parent 7b0a12ab2e
commit f32a5e2325
1 changed files with 25 additions and 19 deletions
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44
drivers/usb/dwc3/core.c
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@ -656,6 +656,31 @@ static int dwc3_probe(struct platform_device *pdev)
return -ENODEV; return -ENODEV;
} }
dwc->xhci_resources[0].start = res->start;
dwc->xhci_resources[0].end = dwc->xhci_resources[0].start +
DWC3_XHCI_REGS_END;
dwc->xhci_resources[0].flags = res->flags;
dwc->xhci_resources[0].name = res->name;
res->start += DWC3_GLOBALS_REGS_START;
/*
* Request memory region but exclude xHCI regs,
* since it will be requested by the xhci-plat driver.
*/
regs = devm_ioremap_resource(dev, res);
if (IS_ERR(regs))
return PTR_ERR(regs);
dwc->regs = regs;
dwc->regs_size = resource_size(res);
/*
* restore res->start back to its original value so that,
* in case the probe is deferred, we don't end up getting error in
* request the memory region the next time probe is called.
*/
res->start -= DWC3_GLOBALS_REGS_START;
if (node) { if (node) {
dwc->maximum_speed = of_usb_get_maximum_speed(node); dwc->maximum_speed = of_usb_get_maximum_speed(node);
@ -676,28 +701,9 @@ static int dwc3_probe(struct platform_device *pdev)
if (ret) if (ret)
return ret; return ret;
dwc->xhci_resources[0].start = res->start;
dwc->xhci_resources[0].end = dwc->xhci_resources[0].start +
DWC3_XHCI_REGS_END;
dwc->xhci_resources[0].flags = res->flags;
dwc->xhci_resources[0].name = res->name;
res->start += DWC3_GLOBALS_REGS_START;
/*
* Request memory region but exclude xHCI regs,
* since it will be requested by the xhci-plat driver.
*/
regs = devm_ioremap_resource(dev, res);
if (IS_ERR(regs))
return PTR_ERR(regs);
spin_lock_init(&dwc->lock); spin_lock_init(&dwc->lock);
platform_set_drvdata(pdev, dwc); platform_set_drvdata(pdev, dwc);
dwc->regs = regs;
dwc->regs_size = resource_size(res);
dev->dma_mask = dev->parent->dma_mask; dev->dma_mask = dev->parent->dma_mask;
dev->dma_parms = dev->parent->dma_parms; dev->dma_parms = dev->parent->dma_parms;
dma_set_coherent_mask(dev, dev->parent->coherent_dma_mask); dma_set_coherent_mask(dev, dev->parent->coherent_dma_mask);