usb: dwc3: Check controller type before setting speed
DWC_usb3 speed can only be set up to SuperSpeed. Limit the setting to SuperSpeed only should the value be higher. Otherwise, the controller will read an invalid speed value and set the device to an incorrect speed. Signed-off-by: Thinh Nguyen <thinhn@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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@ -2044,7 +2044,10 @@ static void dwc3_gadget_set_speed(struct usb_gadget *g,
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reg |= DWC3_DCFG_SUPERSPEED;
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break;
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case USB_SPEED_SUPER_PLUS:
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reg |= DWC3_DCFG_SUPERSPEED_PLUS;
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if (dwc3_is_usb31(dwc))
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reg |= DWC3_DCFG_SUPERSPEED_PLUS;
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else
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reg |= DWC3_DCFG_SUPERSPEED;
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break;
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default:
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dev_err(dwc->dev, "invalid speed (%d)\n", speed);
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