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usb: dwc2: Add exit clock gating when port reset is asserted 

Adds clock gating exit flow when set port feature
reset is received in suspended state.

Signed-off-by: Artur Petrosyan <Arthur.Petrosyan@synopsys.com>
Link: https://lore.kernel.org/r/20210413073646.27217A0094@mailhost.synopsys.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Artur Petrosyan 2021-04-13 11:36:45 +04:00 committed by Greg Kroah-Hartman
parent 9b4965d77e
commit 5f9e60c061
1 changed files with 4 additions and 0 deletions
drivers/usb/dwc2
hcd.c

4
drivers/usb/dwc2/hcd.c
View File

@ -3712,6 +3712,10 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq,
"exit partial_power_down failed\n"); "exit partial_power_down failed\n");
} }
if (hsotg->params.power_down ==
DWC2_POWER_DOWN_PARAM_NONE && hsotg->bus_suspended)
dwc2_host_exit_clock_gating(hsotg, 0);
hprt0 = dwc2_read_hprt0(hsotg); hprt0 = dwc2_read_hprt0(hsotg);
dev_dbg(hsotg->dev, dev_dbg(hsotg->dev,
"SetPortFeature - USB_PORT_FEAT_RESET\n"); "SetPortFeature - USB_PORT_FEAT_RESET\n");