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 <Minas.Harutyunyan@synopsys.com>
Signed-off-by: Artur Petrosyan <Arthur.Petrosyan@synopsys.com>
Link: https://lore.kernel.org/r/20210408094526.4DD7AA022E@mailhost.synopsys.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c
index 720354d..7c74967 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");
