diff options
| author | Artur Petrosyan <Arthur.Petrosyan@synopsys.com> | 2021-04-08 12:44:53 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-04-09 16:16:38 +0300 |
| commit | b77b0d0021ec8f6bbcce659c5e6500e2dbc74e3c (patch) | |
| tree | f763714539917ed658d69cf6d08b4e1864a86381 /drivers | |
| parent | c9c394abfa8456808fd3a0083f7fd81c3188bd0c (diff) | |
| download | linux-b77b0d0021ec8f6bbcce659c5e6500e2dbc74e3c.tar.xz | |
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 <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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/dwc2/core_intr.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/drivers/usb/dwc2/core_intr.c b/drivers/usb/dwc2/core_intr.c index 1fb957ce6c25..0a7f9330907f 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 |