usb: dwc2: gadget: move gadget resume after the core is in L0 state
[ Upstream commit5.4-rM2-2.2.x-imx-squashed8c935deace
] 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:f81f46e1f5
("usb: dwc2: implement hibernation during bus suspend/resume") Acked-by: Minas Harutyunyan <hminas@synopsys.com> Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by: Felipe Balbi <balbi@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
parent
f1b9e29983
commit
0a560f102d
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@ -421,10 +421,13 @@ static void dwc2_handle_wakeup_detected_intr(struct dwc2_hsotg *hsotg)
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if (ret && (ret != -ENOTSUPP))
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if (ret && (ret != -ENOTSUPP))
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dev_err(hsotg->dev, "exit power_down failed\n");
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dev_err(hsotg->dev, "exit power_down failed\n");
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call_gadget(hsotg, resume);
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}
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/* Change to L0 state */
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/* Change to L0 state */
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hsotg->lx_state = DWC2_L0;
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hsotg->lx_state = DWC2_L0;
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call_gadget(hsotg, resume);
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} else {
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/* Change to L0 state */
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hsotg->lx_state = DWC2_L0;
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}
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} else {
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} else {
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if (hsotg->params.power_down)
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if (hsotg->params.power_down)
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return;
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return;
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