Avoiding phy powerdown when wakeup capable devices are connected by checking phy_power_off flag. Phy should be on to wake up the device from suspend using wakeup capable devices such as keyboard and mouse.
Signed-off-by: Sandeep Maheswaram <[email protected]> --- drivers/usb/dwc3/core.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 05e2e54c..3b88c62 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -1701,7 +1701,7 @@ static int dwc3_suspend_common(struct dwc3 *dwc, pm_message_t msg) dwc3_core_exit(dwc); break; case DWC3_GCTL_PRTCAP_HOST: - if (!PMSG_IS_AUTO(msg)) { + if (!PMSG_IS_AUTO(msg) && dwc->phy_power_off) { dwc3_core_exit(dwc); break; } @@ -1762,13 +1762,16 @@ static int dwc3_resume_common(struct dwc3 *dwc, pm_message_t msg) spin_unlock_irqrestore(&dwc->lock, flags); break; case DWC3_GCTL_PRTCAP_HOST: - if (!PMSG_IS_AUTO(msg)) { + if (!PMSG_IS_AUTO(msg) && dwc->phy_power_off) { ret = dwc3_core_init_for_resume(dwc); if (ret) return ret; dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_HOST); break; + } else { + dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_HOST); } + /* Restore GUSB2PHYCFG bits that were modified in suspend */ reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0)); if (dwc->dis_u2_susphy_quirk) -- QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation
