From e97570f7a72022b459ba0c8d1123019594ee8bdb Mon Sep 17 00:00:00 2001 From: Artur Petrosyan Date: Thu, 8 Apr 2021 13:45:25 +0400 Subject: [PATCH] usb: dwc2: Add exit partial power down when port reset is asserted Adds Partial Power Down exiting flow when set port feature reset is received in suspended state. Acked-by: Minas Harutyunyan Signed-off-by: Artur Petrosyan Link: https://lore.kernel.org/r/20210408094526.4DD7AA022E@mailhost.synopsys.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/dwc2/hcd.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c index 720354df014b..7c7496719152 100644 --- a/drivers/usb/dwc2/hcd.c +++ b/drivers/usb/dwc2/hcd.c @@ -3694,6 +3694,15 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq, if (hsotg->params.power_down == DWC2_POWER_DOWN_PARAM_HIBERNATION && hsotg->hibernated) dwc2_exit_hibernation(hsotg, 0, 1, 1); + + if (hsotg->in_ppd) { + retval = dwc2_exit_partial_power_down(hsotg, 1, + true); + if (retval) + dev_err(hsotg->dev, + "exit partial_power_down failed\n"); + } + hprt0 = dwc2_read_hprt0(hsotg); dev_dbg(hsotg->dev, "SetPortFeature - USB_PORT_FEAT_RESET\n"); -- 2.11.0