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usb: dwc3: enable hibernation if to be supported

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It enables hibernation if the function is set in coreConsultant.

Suggested-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Huang Rui
2014-10-28 19:54:22 +08:00
committed by Felipe Balbi
parent 1e5e2d3d05
commit 2eac399289
1 changed files with 6 additions and 0 deletions
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6
drivers/usb/dwc3/core.c
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@@ -449,6 +449,12 @@ static int dwc3_core_init(struct dwc3 *dwc)
case DWC3_GHWPARAMS1_EN_PWROPT_HIB: case DWC3_GHWPARAMS1_EN_PWROPT_HIB:
/* enable hibernation here */ /* enable hibernation here */
dwc->nr_scratch = DWC3_GHWPARAMS4_HIBER_SCRATCHBUFS(hwparams4); dwc->nr_scratch = DWC3_GHWPARAMS4_HIBER_SCRATCHBUFS(hwparams4);
/*
* REVISIT Enabling this bit so that host-mode hibernation
* will work. Device-mode hibernation is not yet implemented.
*/
reg |= DWC3_GCTL_GBLHIBERNATIONEN;
break; break;
default: default:
dev_dbg(dwc->dev, "No power optimization available\n"); dev_dbg(dwc->dev, "No power optimization available\n");