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| author | Razmik Karapetyan <razmik@synopsys.com> | 2018-01-24 17:40:56 +0400 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2018-03-13 10:47:47 +0200 |
| commit | 600a490e180fb95e487b180f00985567c00fa9a9 (patch) | |
| tree | 6f5046f289d8829207438f2f9c9b942db1e8d139 /drivers/usb/dwc2/core.c | |
| parent | 66e77a24a8c36ff83f0a12f44d23d8141e82fa3b (diff) | |
| download | linux-stable-600a490e180fb95e487b180f00985567c00fa9a9.tar.gz linux-stable-600a490e180fb95e487b180f00985567c00fa9a9.tar.bz2 linux-stable-600a490e180fb95e487b180f00985567c00fa9a9.zip | |
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>
Diffstat (limited to 'drivers/usb/dwc2/core.c')
| -rw-r--r-- | drivers/usb/dwc2/core.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/dwc2/core.c b/drivers/usb/dwc2/core.c index 204506f92620..346150922dbd 100644 --- a/drivers/usb/dwc2/core.c +++ b/drivers/usb/dwc2/core.c @@ -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)); |