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usb: dwc2: gadget: don't modify pullup state in host mode
Modifying the pullup state during host mode trig a new enumeration of attached device. Thus, avoid modifying pullup in host mode. Signed-off-by: Gregory Herrero <gregory.herrero@intel.com> Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com> Tested-by: Robert Baldyga <r.baldyga@samsung.com> Tested-by: Dinh Nguyen <dinguyen@opensource.altera.com> Tested-by: John Youn <johnyoun@synopsys.com> Acked-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
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@ -3170,7 +3170,14 @@ static int dwc2_hsotg_pullup(struct usb_gadget *gadget, int is_on)
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struct dwc2_hsotg *hsotg = to_hsotg(gadget);
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unsigned long flags = 0;
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dev_dbg(hsotg->dev, "%s: is_on: %d\n", __func__, is_on);
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dev_dbg(hsotg->dev, "%s: is_on: %d op_state: %d\n", __func__, is_on,
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hsotg->op_state);
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/* Don't modify pullup state while in host mode */
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if (hsotg->op_state != OTG_STATE_B_PERIPHERAL) {
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hsotg->enabled = is_on;
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return 0;
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}
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mutex_lock(&hsotg->init_mutex);
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spin_lock_irqsave(&hsotg->lock, flags);
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