On 4/8/2021 1:45 PM, Artur Petrosyan wrote:
> Adds Partial Power Down exiting flow when set port feature
> reset is received in suspended state.
>
> Signed-off-by: Artur Petrosyan <Arthur.Petrosyan@xxxxxxxxxxxx>
Acked-by: Minas Harutyunyan <Minas.Harutyunyan@xxxxxxxxxxxx>
> ---
> Changes in v3:
> - None
> Changes in v2:
> - None
>
> 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");
>
