diff options
Diffstat (limited to 'drivers/usb/dwc2/core.c')
| -rw-r--r-- | drivers/usb/dwc2/core.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/usb/dwc2/core.c b/drivers/usb/dwc2/core.c index e85f2d230da4..204506f92620 100644 --- a/drivers/usb/dwc2/core.c +++ b/drivers/usb/dwc2/core.c @@ -498,6 +498,20 @@ int dwc2_core_reset_and_force_dr_mode(struct dwc2_hsotg *hsotg) return 0; } +/* + * dwc2_enable_acg - enable active clock gating feature + */ +void dwc2_enable_acg(struct dwc2_hsotg *hsotg) +{ + if (hsotg->params.acg_enable) { + u32 pcgcctl1 = dwc2_readl(hsotg->regs + PCGCCTL1); + + dev_dbg(hsotg->dev, "Enabling Active Clock Gating\n"); + pcgcctl1 |= PCGCCTL1_GATEEN; + dwc2_writel(pcgcctl1, hsotg->regs + PCGCCTL1); + } +} + /** * dwc2_dump_host_registers() - Prints the host registers * |