Messages in this thread | | | Date | Thu, 6 Nov 2014 18:21:42 +0100 | Subject | Re: [PATCH v2] usb: dwc2: add bus suspend/resume for dwc2 | From | Romain Perier <> |
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Hi Kever,
2014-11-06 2:30 GMT+01:00 Kever Yang <kever.yang@rock-chips.com>: > > +static int _dwc2_hcd_suspend(struct usb_hcd *hcd) > +{ > + struct dwc2_hsotg *hsotg = dwc2_hcd_to_hsotg(hcd); > + u32 hprt0; > + > + if (!((hsotg->op_state == OTG_STATE_B_HOST) || > + (hsotg->op_state == OTG_STATE_A_HOST))) > + return 0; > + > + if (hsotg->lx_state != DWC2_L0) > + return 0; > + > + hprt0 = dwc2_read_hprt0(hsotg); > + if (hprt0 & HPRT0_CONNSTS) > + dwc2_port_suspend(hsotg, 1); > + > + return 0; > +} > + > +static int _dwc2_hcd_resume(struct usb_hcd *hcd) > +{ > + struct dwc2_hsotg *hsotg = dwc2_hcd_to_hsotg(hcd); > + u32 hprt0; > + > + if (!((hsotg->op_state == OTG_STATE_B_HOST) || > + (hsotg->op_state == OTG_STATE_A_HOST))) > + return 0; > + > + if (hsotg->lx_state != DWC2_L2) > + return 0; > + > + hprt0 = dwc2_read_hprt0(hsotg); > + if ((hprt0 & HPRT0_CONNSTS) && (hprt0 & HPRT0_SUSP)) > + dwc2_port_resume(hsotg); > + > + return 0; > +}
Could you also define these functions under #ifdef CONFIG_PM ?
Thanks.
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