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authorHuang Rui <ray.huang@amd.com>2014-10-28 19:54:22 +0800
committerFelipe Balbi <balbi@ti.com>2014-11-03 10:03:35 -0600
commit2eac3992897e3e1be40e518032dbfd6aeca1932b (patch)
tree0f8e919082374d2f07c38c025e53e8d46b71d7d4 /drivers/usb/dwc3
parent1e5e2d3d055436c114e2f16145b83339aed024ff (diff)
usb: dwc3: enable hibernation if to be supported
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>
Diffstat (limited to 'drivers/usb/dwc3')
-rw-r--r--drivers/usb/dwc3/core.c6
1 files changed, 6 insertions, 0 deletions
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");