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usb: dwc3: Update maximum_speed for SuperSpeedPlus
If the maximum_speed is not set, set it to a known value, either SuperSpeed or SuperSpeedPlus based on the type of controller we are using. If we are on DWC_usb31 controller, check the PHY interface to see if it is capable of SuperSpeedPlus. Also this check is moved after dwc3_core_init() so that we can check dwc->revision. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <balbi@kernel.org>
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@ -962,10 +962,6 @@ static int dwc3_probe(struct platform_device *pdev)
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fladj = pdata->fladj_value;
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}
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/* default to superspeed if no maximum_speed passed */
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if (dwc->maximum_speed == USB_SPEED_UNKNOWN)
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dwc->maximum_speed = USB_SPEED_SUPER;
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dwc->lpm_nyet_threshold = lpm_nyet_threshold;
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dwc->tx_de_emphasis = tx_de_emphasis;
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@ -1016,6 +1012,19 @@ static int dwc3_probe(struct platform_device *pdev)
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goto err1;
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}
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/* default to superspeed if no maximum_speed passed */
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if (dwc->maximum_speed == USB_SPEED_UNKNOWN) {
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dwc->maximum_speed = USB_SPEED_SUPER;
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/*
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* default to superspeed plus if we are capable.
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*/
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if (dwc3_is_usb31(dwc) &&
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(DWC3_GHWPARAMS3_SSPHY_IFC(dwc->hwparams.hwparams3) ==
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DWC3_GHWPARAMS3_SSPHY_IFC_GEN2))
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dwc->maximum_speed = USB_SPEED_SUPER_PLUS;
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}
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/* Adjust Frame Length */
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dwc3_frame_length_adjustment(dwc, fladj);
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