From 2eac3992897e3e1be40e518032dbfd6aeca1932b Mon Sep 17 00:00:00 2001 From: Huang Rui Date: Tue, 28 Oct 2014 19:54:22 +0800 Subject: [PATCH] usb: dwc3: enable hibernation if to be supported It enables hibernation if the function is set in coreConsultant. Suggested-by: Felipe Balbi Signed-off-by: Huang Rui Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/core.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index fa396fc57a85..2f7aecc620e7 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -449,6 +449,12 @@ static int dwc3_core_init(struct dwc3 *dwc) case DWC3_GHWPARAMS1_EN_PWROPT_HIB: /* enable hibernation here */ 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; default: dev_dbg(dwc->dev, "No power optimization available\n"); -- 2.30.2