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Commit 600a490e authored by Razmik Karapetyan's avatar Razmik Karapetyan Committed by Felipe Balbi
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usb: dwc2: Backup and restore PCGCCTL1 register 



Backup PCGCCTL1 register when entering hibernation mode and
restore it after exiting from hibernation, to keep active ACG
feature.

Signed-off-by: default avatarRazmik Karapetyan <razmik@synopsys.com>
Signed-off-by: default avatarGrigor Tovmasyan <tovmasya@synopsys.com>
Signed-off-by: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>
parent 66e77a24

drivers/usb/dwc2/core.c

+2 −0
Original line number Diff line number Diff line
@@ -80,6 +80,7 @@ static int dwc2_backup_global_registers(struct dwc2_hsotg *hsotg) 
	gr->gnptxfsiz = dwc2_readl(hsotg->regs + GNPTXFSIZ);

	gr->hptxfsiz = dwc2_readl(hsotg->regs + HPTXFSIZ);

	gr->gdfifocfg = dwc2_readl(hsotg->regs + GDFIFOCFG);

	gr->pcgcctl1 = dwc2_readl(hsotg->regs + PCGCCTL1);

	for (i = 0; i < MAX_EPS_CHANNELS; i++)

		gr->dtxfsiz[i] = dwc2_readl(hsotg->regs + DPTXFSIZN(i));
@@ -119,6 +120,7 @@ static int dwc2_restore_global_registers(struct dwc2_hsotg *hsotg) 
	dwc2_writel(gr->gnptxfsiz, hsotg->regs + GNPTXFSIZ);

	dwc2_writel(gr->hptxfsiz, hsotg->regs + HPTXFSIZ);

	dwc2_writel(gr->gdfifocfg, hsotg->regs + GDFIFOCFG);

	dwc2_writel(gr->pcgcctl1, hsotg->regs + PCGCCTL1);

	for (i = 0; i < MAX_EPS_CHANNELS; i++)

		dwc2_writel(gr->dtxfsiz[i], hsotg->regs + DPTXFSIZN(i));

drivers/usb/dwc2/core.h

+1 −0
Original line number Diff line number Diff line
@@ -628,6 +628,7 @@ struct dwc2_gregs_backup { 
	u32 gi2cctl;

	u32 hptxfsiz;

	u32 pcgcctl;

	u32 pcgcctl1;

	u32 gdfifocfg;

	u32 dtxfsiz[MAX_EPS_CHANNELS];

	u32 gpwrdn;