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: Razmik Karapetyan <razmik@synopsys.com> Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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@ -80,6 +80,7 @@ static int dwc2_backup_global_registers(struct dwc2_hsotg *hsotg)
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gr->gnptxfsiz = dwc2_readl(hsotg->regs + GNPTXFSIZ);
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gr->hptxfsiz = dwc2_readl(hsotg->regs + HPTXFSIZ);
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gr->gdfifocfg = dwc2_readl(hsotg->regs + GDFIFOCFG);
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gr->pcgcctl1 = dwc2_readl(hsotg->regs + PCGCCTL1);
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for (i = 0; i < MAX_EPS_CHANNELS; i++)
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gr->dtxfsiz[i] = dwc2_readl(hsotg->regs + DPTXFSIZN(i));
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@ -119,6 +120,7 @@ static int dwc2_restore_global_registers(struct dwc2_hsotg *hsotg)
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dwc2_writel(gr->gnptxfsiz, hsotg->regs + GNPTXFSIZ);
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dwc2_writel(gr->hptxfsiz, hsotg->regs + HPTXFSIZ);
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dwc2_writel(gr->gdfifocfg, hsotg->regs + GDFIFOCFG);
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dwc2_writel(gr->pcgcctl1, hsotg->regs + PCGCCTL1);
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for (i = 0; i < MAX_EPS_CHANNELS; i++)
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dwc2_writel(gr->dtxfsiz[i], hsotg->regs + DPTXFSIZN(i));
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@ -628,6 +628,7 @@ struct dwc2_gregs_backup {
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u32 gi2cctl;
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u32 hptxfsiz;
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u32 pcgcctl;
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u32 pcgcctl1;
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u32 gdfifocfg;
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u32 dtxfsiz[MAX_EPS_CHANNELS];
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u32 gpwrdn;
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