usb: dwc2: core: Add hibernated flag

Added a flag to indicate that core is in hibernation,
it is used to determine the hibernation state of the core.

Signed-off-by: Vardan Mikayelyan <mvardan@synopsys.com>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

diff --git a/drivers/usb/dwc2/core.h b/drivers/usb/dwc2/core.h
index 85e083f..31b1be0 100644 (file)
--- a/drivers/usb/dwc2/core.h
+++ b/drivers/usb/dwc2/core.h
@@ -810,6 +810,7 @@ struct dwc2_hregs_backup {
  * @hcd_enabled                Host mode sub-driver initialization indicator.
  * @gadget_enabled     Peripheral mode sub-driver initialization indicator.
  * @ll_hw_enabled      Status of low-level hardware resources.
+ * @hibernated:                True if core is hibernated
  * @phy:                The otg phy transceiver structure for phy control.
  * @uphy:               The otg phy transceiver structure for old USB phy
  *                      control.
@@ -947,6 +948,7 @@ struct dwc2_hsotg {
        unsigned int hcd_enabled:1;
        unsigned int gadget_enabled:1;
        unsigned int ll_hw_enabled:1;
+       unsigned int hibernated:1;
 
        struct phy *phy;
        struct usb_phy *uphy;

diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c
index 65e1af5..7d80e63 100644 (file)
--- a/drivers/usb/dwc2/platform.c
+++ b/drivers/usb/dwc2/platform.c
@@ -458,6 +458,7 @@ static int dwc2_driver_probe(struct platform_device *dev)
        }
 
        platform_set_drvdata(dev, hsotg);
+       hsotg->hibernated = 0;
 
        dwc2_debugfs_init(hsotg);