From: Artur Petrosyan Date: Thu, 8 Apr 2021 09:44:53 +0000 (+0400) Subject: usb: dwc2: Add partial power down exit flow in wakeup intr. X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=b77b0d0021ec8f6bbcce659c5e6500e2dbc74e3c;p=linux.git usb: dwc2: Add partial power down exit flow in wakeup intr. According to programming guide added host partial power down exit flow in wakeup detected interrupt handler. Acked-by: Minas Harutyunyan Signed-off-by: Artur Petrosyan Link: https://lore.kernel.org/r/20210408094454.5BBCBA0094@mailhost.synopsys.com Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/usb/dwc2/core_intr.c b/drivers/usb/dwc2/core_intr.c index 1fb957ce6c259..0a7f9330907fb 100644 --- a/drivers/usb/dwc2/core_intr.c +++ b/drivers/usb/dwc2/core_intr.c @@ -423,15 +423,14 @@ static void dwc2_handle_wakeup_detected_intr(struct dwc2_hsotg *hsotg) hsotg->lx_state = DWC2_L0; } } else { - if (hsotg->params.power_down) - return; - - if (hsotg->lx_state != DWC2_L1) { - u32 pcgcctl = dwc2_readl(hsotg, PCGCTL); - - /* Restart the Phy Clock */ - pcgcctl &= ~PCGCTL_STOPPCLK; - dwc2_writel(hsotg, pcgcctl, PCGCTL); + if (hsotg->lx_state == DWC2_L2) { + if (hsotg->in_ppd) { + ret = dwc2_exit_partial_power_down(hsotg, 1, + true); + if (ret) + dev_err(hsotg->dev, + "exit partial_power_down failed\n"); + } /* * If we've got this quirk then the PHY is stuck upon