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usb: dwc2: Add partial power down exit flow in wakeup intr.

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According to programming guide added host partial power
down exit flow in wakeup detected interrupt handler.

Acked-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Signed-off-by: Artur Petrosyan <Arthur.Petrosyan@synopsys.com>
Link: https://lore.kernel.org/r/20210408094454.5BBCBA0094@mailhost.synopsys.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Artur Petrosyan 2021-04-08 13:44:53 +04:00 committed by Greg Kroah-Hartman
parent c9c394abfa
commit b77b0d0021
1 changed files with 8 additions and 9 deletions
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17
drivers/usb/dwc2/core_intr.c
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@ -423,15 +423,14 @@ static void dwc2_handle_wakeup_detected_intr(struct dwc2_hsotg *hsotg)
hsotg->lx_state = DWC2_L0; hsotg->lx_state = DWC2_L0;
} }
} else { } else {
if (hsotg->params.power_down) if (hsotg->lx_state == DWC2_L2) {
return; if (hsotg->in_ppd) {
ret = dwc2_exit_partial_power_down(hsotg, 1,
if (hsotg->lx_state != DWC2_L1) { true);
u32 pcgcctl = dwc2_readl(hsotg, PCGCTL); if (ret)
dev_err(hsotg->dev,
/* Restart the Phy Clock */ "exit partial_power_down failed\n");
pcgcctl &= ~PCGCTL_STOPPCLK; }
dwc2_writel(hsotg, pcgcctl, PCGCTL);
/* /*
* If we've got this quirk then the PHY is stuck upon * If we've got this quirk then the PHY is stuck upon