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usb: dwc3: core: fix PHY handling during suspend
we need to power off the PHY during suspend and power it back on during resume. Signed-off-by: Felipe Balbi <balbi@kernel.org> [nsekhar@ti.com: fix call to usb_phy_set_suspend() in dwc3_suspend()] Signed-off-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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@ -1150,6 +1150,11 @@ static int dwc3_suspend(struct device *dev)
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phy_exit(dwc->usb2_generic_phy);
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phy_exit(dwc->usb3_generic_phy);
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usb_phy_set_suspend(dwc->usb2_phy, 1);
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usb_phy_set_suspend(dwc->usb3_phy, 1);
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WARN_ON(phy_power_off(dwc->usb2_generic_phy) < 0);
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WARN_ON(phy_power_off(dwc->usb3_generic_phy) < 0);
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pinctrl_pm_select_sleep_state(dev);
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return 0;
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@ -1163,11 +1168,21 @@ static int dwc3_resume(struct device *dev)
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pinctrl_pm_select_default_state(dev);
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usb_phy_set_suspend(dwc->usb2_phy, 0);
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usb_phy_set_suspend(dwc->usb3_phy, 0);
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ret = phy_power_on(dwc->usb2_generic_phy);
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if (ret < 0)
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return ret;
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ret = phy_power_on(dwc->usb3_generic_phy);
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if (ret < 0)
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goto err_usb2phy_power;
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usb_phy_init(dwc->usb3_phy);
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usb_phy_init(dwc->usb2_phy);
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ret = phy_init(dwc->usb2_generic_phy);
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if (ret < 0)
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return ret;
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goto err_usb3phy_power;
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ret = phy_init(dwc->usb3_generic_phy);
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if (ret < 0)
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@ -1200,6 +1215,12 @@ static int dwc3_resume(struct device *dev)
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err_usb2phy_init:
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phy_exit(dwc->usb2_generic_phy);
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err_usb3phy_power:
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phy_power_off(dwc->usb3_generic_phy);
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err_usb2phy_power:
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phy_power_off(dwc->usb2_generic_phy);
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return ret;
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}
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