diff options
| -rw-r--r-- | drivers/usb/dwc3/core.c | 10 | ||||
| -rw-r--r-- | drivers/usb/dwc3/core.h | 4 |
2 files changed, 14 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 3dc535a703f1..fe1ecae73086 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -766,6 +766,16 @@ static int dwc3_core_init(struct dwc3 *dwc) dwc3_writel(dwc->regs, DWC3_GUCTL2, reg); } + /* + * Enable hardware control of sending remote wakeup in HS when + * the device is in the L1 state. + */ + if (dwc->revision >= DWC3_REVISION_290A) { + reg = dwc3_readl(dwc->regs, DWC3_GUCTL1); + reg |= DWC3_GUCTL1_DEV_L1_EXIT_BY_HW; + dwc3_writel(dwc->regs, DWC3_GUCTL1, reg); + } + return 0; err4: diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index 29fd7aa5fc72..e878366ead00 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -198,6 +198,9 @@ #define DWC3_GCTL_GBLHIBERNATIONEN (1 << 1) #define DWC3_GCTL_DSBLCLKGTNG (1 << 0) +/* Global User Control 1 Register */ +#define DWC3_GUCTL1_DEV_L1_EXIT_BY_HW (1 << 24) + /* Global USB2 PHY Configuration Register */ #define DWC3_GUSB2PHYCFG_PHYSOFTRST (1 << 31) #define DWC3_GUSB2PHYCFG_U2_FREECLK_EXISTS (1 << 30) @@ -908,6 +911,7 @@ struct dwc3 { #define DWC3_REVISION_260A 0x5533260a #define DWC3_REVISION_270A 0x5533270a #define DWC3_REVISION_280A 0x5533280a +#define DWC3_REVISION_290A 0x5533290a #define DWC3_REVISION_300A 0x5533300a #define DWC3_REVISION_310A 0x5533310a |