Commit 8c935dea authored by Fabrice Gasnier's avatar Fabrice Gasnier Committed by Felipe Balbi

usb: dwc2: gadget: move gadget resume after the core is in L0 state

When the remote wakeup interrupt is triggered, lx_state is resumed from L2
to L0 state. But when the gadget resume is called, lx_state is still L2.
This prevents the resume callback to queue any request. Any attempt
to queue a request from resume callback will result in:
- "submit request only in active state" debug message to be issued
- dwc2_hsotg_ep_queue() returns -EAGAIN

Call the gadget resume routine after the core is in L0 state.

Fixes: f81f46e1 ("usb: dwc2: implement hibernation during bus suspend/resume")
Acked-by: default avatarMinas Harutyunyan <hminas@synopsys.com>
Signed-off-by: default avatarFabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: default avatarFelipe Balbi <balbi@kernel.org>
parent 43cd0023
......@@ -416,10 +416,13 @@ static void dwc2_handle_wakeup_detected_intr(struct dwc2_hsotg *hsotg)
if (ret && (ret != -ENOTSUPP))
dev_err(hsotg->dev, "exit power_down failed\n");
/* Change to L0 state */
hsotg->lx_state = DWC2_L0;
call_gadget(hsotg, resume);
}
} else {
/* Change to L0 state */
hsotg->lx_state = DWC2_L0;
}
} else {
if (hsotg->params.power_down)
return;
......
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