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Commit 4823f734 authored by Linux Build Service Account's avatar Linux Build Service Account Committed by Gerrit - the friendly Code Review server
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Merge "usb: dwc3: Add support for device L1 exit"

parents eb94a959 6f1c8202

drivers/usb/dwc3/core.c

+10 −0
Original line number Diff line number Diff line
@@ -903,6 +903,16 @@ 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;



err2:

drivers/usb/dwc3/core.h

+4 −0
Original line number Diff line number Diff line
@@ -217,6 +217,9 @@ 
/* Global Debug LTSSM Register */

#define DWC3_GDBGLTSSM_LINKSTATE_MASK	(0xF << 22)



/* 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_ENBLSLPM	(1 << 8)
@@ -1036,6 +1039,7 @@ 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

#define DWC3_REVISION_320A	0x5533320a