1 // SPDX-License-Identifier: GPL-2.0
5  * Copyright (C) 2018-2020 Cadence.
6  * Copyright (C) 2017-2018 NXP
23 #include "gadget-export.h"
30 	ret = phy_power_on(cdns->usb2_phy);  in set_phy_power_on()
34 	ret = phy_power_on(cdns->usb3_phy);  in set_phy_power_on()
36 		phy_power_off(cdns->usb2_phy);  in set_phy_power_on()
43 	phy_power_off(cdns->usb3_phy);  in set_phy_power_off()
44 	phy_power_off(cdns->usb2_phy);  in set_phy_power_off()
48  * cdns3_plat_probe - probe for cdns3 core device
55 	struct device *dev = &pdev->dev;  in cdns3_plat_probe()
63 		return -ENOMEM;  in cdns3_plat_probe()
65 	cdns->dev = dev;  in cdns3_plat_probe()
66 	cdns->pdata = dev_get_platdata(dev);  in cdns3_plat_probe()
74 	cdns->xhci_res[0].start = ret;  in cdns3_plat_probe()
75 	cdns->xhci_res[0].end = ret;  in cdns3_plat_probe()
76 	cdns->xhci_res[0].flags = IORESOURCE_IRQ | irq_get_trigger_type(ret);  in cdns3_plat_probe()
77 	cdns->xhci_res[0].name = "host";  in cdns3_plat_probe()
82 		return -ENXIO;  in cdns3_plat_probe()
85 	cdns->xhci_res[1] = *res;  in cdns3_plat_probe()
87 	cdns->dev_irq = platform_get_irq_byname(pdev, "peripheral");  in cdns3_plat_probe()
89 	if (cdns->dev_irq < 0)  in cdns3_plat_probe()
90 		return dev_err_probe(dev, cdns->dev_irq,  in cdns3_plat_probe()
98 	cdns->dev_regs	= regs;  in cdns3_plat_probe()
100 	cdns->otg_irq = platform_get_irq_byname(pdev, "otg");  in cdns3_plat_probe()
101 	if (cdns->otg_irq < 0)  in cdns3_plat_probe()
102 		return dev_err_probe(dev, cdns->otg_irq,  in cdns3_plat_probe()
108 		return -ENXIO;  in cdns3_plat_probe()
111 	cdns->phyrst_a_enable = device_property_read_bool(dev, "cdns,phyrst-a-enable");  in cdns3_plat_probe()
113 	cdns->otg_res = *res;  in cdns3_plat_probe()
115 	cdns->wakeup_irq = platform_get_irq_byname_optional(pdev, "wakeup");  in cdns3_plat_probe()
116 	if (cdns->wakeup_irq == -EPROBE_DEFER)  in cdns3_plat_probe()
117 		return cdns->wakeup_irq;  in cdns3_plat_probe()
119 	if (cdns->wakeup_irq < 0) {  in cdns3_plat_probe()
121 		cdns->wakeup_irq = 0x0;  in cdns3_plat_probe()
124 	cdns->usb2_phy = devm_phy_optional_get(dev, "cdns3,usb2-phy");  in cdns3_plat_probe()
125 	if (IS_ERR(cdns->usb2_phy))  in cdns3_plat_probe()
126 		return dev_err_probe(dev, PTR_ERR(cdns->usb2_phy),  in cdns3_plat_probe()
127 				     "Failed to get cdn3,usb2-phy\n");  in cdns3_plat_probe()
129 	ret = phy_init(cdns->usb2_phy);  in cdns3_plat_probe()
133 	cdns->usb3_phy = devm_phy_optional_get(dev, "cdns3,usb3-phy");  in cdns3_plat_probe()
134 	if (IS_ERR(cdns->usb3_phy))  in cdns3_plat_probe()
135 		return dev_err_probe(dev, PTR_ERR(cdns->usb3_phy),  in cdns3_plat_probe()
136 				     "Failed to get cdn3,usb3-phy\n");  in cdns3_plat_probe()
138 	ret = phy_init(cdns->usb3_phy);  in cdns3_plat_probe()
146 	cdns->gadget_init = cdns3_gadget_init;  in cdns3_plat_probe()
155 	if (!(cdns->pdata && (cdns->pdata->quirks & CDNS3_DEFAULT_PM_RUNTIME_ALLOW)))  in cdns3_plat_probe()
160 	 * and we also needs a small delay to avoid frequently entering low  in cdns3_plat_probe()
172 	phy_exit(cdns->usb3_phy);  in cdns3_plat_probe()
174 	phy_exit(cdns->usb2_phy);  in cdns3_plat_probe()
180  * cdns3_plat_remove() - unbind drd driver and clean up
188 	struct device *dev = cdns->dev;  in cdns3_plat_remove()
195 	phy_exit(cdns->usb2_phy);  in cdns3_plat_remove()
196 	phy_exit(cdns->usb3_phy);  in cdns3_plat_remove()
207 	if (cdns->pdata && cdns->pdata->platform_suspend)  in cdns3_set_platform_suspend()
208 		ret = cdns->pdata->platform_suspend(dev, suspend, wakeup);  in cdns3_set_platform_suspend()
219 	if (cdns->in_lpm)  in cdns3_controller_suspend()
227 	cdns3_set_platform_suspend(cdns->dev, true, wakeup);  in cdns3_controller_suspend()
229 	spin_lock_irqsave(&cdns->lock, flags);  in cdns3_controller_suspend()
230 	cdns->in_lpm = true;  in cdns3_controller_suspend()
231 	spin_unlock_irqrestore(&cdns->lock, flags);  in cdns3_controller_suspend()
232 	dev_dbg(cdns->dev, "%s ends\n", __func__);  in cdns3_controller_suspend()
243 	if (!cdns->in_lpm)  in cdns3_controller_resume()
247 		phy_exit(cdns->usb2_phy);  in cdns3_controller_resume()
248 		ret = phy_init(cdns->usb2_phy);  in cdns3_controller_resume()
252 		phy_exit(cdns->usb3_phy);  in cdns3_controller_resume()
253 		ret = phy_init(cdns->usb3_phy);  in cdns3_controller_resume()
262 	cdns3_set_platform_suspend(cdns->dev, false, false);  in cdns3_controller_resume()
264 	spin_lock_irqsave(&cdns->lock, flags);  in cdns3_controller_resume()
266 	cdns->in_lpm = false;  in cdns3_controller_resume()
267 	spin_unlock_irqrestore(&cdns->lock, flags);  in cdns3_controller_resume()
269 	if (cdns->wakeup_pending) {  in cdns3_controller_resume()
270 		cdns->wakeup_pending = false;  in cdns3_controller_resume()
271 		enable_irq(cdns->wakeup_irq);  in cdns3_controller_resume()
273 	dev_dbg(cdns->dev, "%s ends\n", __func__);  in cdns3_controller_resume()
301 	if (device_may_wakeup(dev) && cdns->wakeup_irq)  in cdns3_plat_suspend()
302 		enable_irq_wake(cdns->wakeup_irq);  in cdns3_plat_suspend()
332 		.name	= "cdns-usb3",