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usb: dwc3: core: explicitly setup and cleanup event buffers

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Make the call to dwc3_event_buffers_setup()
and dwc3_event_buffers_cleanup() explicit,
so it's easier to implement PM.

Tested-by: Vivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Felipe Balbi 2013-02-08 15:15:11 +02:00
parent 4c0c6d0085
commit f122d33e4b
1 changed files with 17 additions and 15 deletions
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32
drivers/usb/dwc3/core.c
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@ -337,12 +337,6 @@ static int dwc3_core_init(struct dwc3 *dwc)
dwc3_writel(dwc->regs, DWC3_GCTL, reg);
ret = dwc3_event_buffers_setup(dwc);
if (ret) {
dev_err(dwc->dev, "failed to setup event buffers\n");
goto err0;
}
return 0;
err0:
@ -351,8 +345,6 @@ err0:
static void dwc3_core_exit(struct dwc3 *dwc)
{
dwc3_event_buffers_cleanup(dwc);
usb_phy_shutdown(dwc->usb2_phy);
usb_phy_shutdown(dwc->usb3_phy);
}
@ -480,6 +472,12 @@ static int dwc3_probe(struct platform_device *pdev)
goto err0;
}
ret = dwc3_event_buffers_setup(dwc);
if (ret) {
dev_err(dwc->dev, "failed to setup event buffers\n");
goto err1;
}
mode = DWC3_MODE(dwc->hwparams.hwparams0);
switch (mode) {
@ -488,7 +486,7 @@ static int dwc3_probe(struct platform_device *pdev)
ret = dwc3_gadget_init(dwc);
if (ret) {
dev_err(dev, "failed to initialize gadget\n");
goto err1;
goto err2;
}
break;
case DWC3_MODE_HOST:
@ -496,7 +494,7 @@ static int dwc3_probe(struct platform_device *pdev)
ret = dwc3_host_init(dwc);
if (ret) {
dev_err(dev, "failed to initialize host\n");
goto err1;
goto err2;
}
break;
case DWC3_MODE_DRD:
@ -504,32 +502,32 @@ static int dwc3_probe(struct platform_device *pdev)
ret = dwc3_host_init(dwc);
if (ret) {
dev_err(dev, "failed to initialize host\n");
goto err1;
goto err2;
}
ret = dwc3_gadget_init(dwc);
if (ret) {
dev_err(dev, "failed to initialize gadget\n");
goto err1;
goto err2;
}
break;
default:
dev_err(dev, "Unsupported mode of operation %d\n", mode);
goto err1;
goto err2;
}
dwc->mode = mode;
ret = dwc3_debugfs_init(dwc);
if (ret) {
dev_err(dev, "failed to initialize debugfs\n");
goto err2;
goto err3;
}
pm_runtime_allow(dev);
return 0;
err2:
err3:
switch (mode) {
case DWC3_MODE_DEVICE:
dwc3_gadget_exit(dwc);
@ -546,6 +544,9 @@ err2:
break;
}
err2:
dwc3_event_buffers_cleanup(dwc);
err1:
dwc3_core_exit(dwc);
@ -583,6 +584,7 @@ static int dwc3_remove(struct platform_device *pdev)
break;
}
dwc3_event_buffers_cleanup(dwc);
dwc3_free_event_buffers(dwc);
dwc3_core_exit(dwc);