118 static int __dwc2_lowlevel_hw_enable(struct dwc2_hsotg *hsotg)  in __dwc2_lowlevel_hw_enable()  argument
120 	struct platform_device *pdev = to_platform_device(hsotg->dev);  in __dwc2_lowlevel_hw_enable()
123 	ret = regulator_bulk_enable(ARRAY_SIZE(hsotg->supplies),  in __dwc2_lowlevel_hw_enable()
124 				    hsotg->supplies);  in __dwc2_lowlevel_hw_enable()
128 	if (hsotg->clk) {  in __dwc2_lowlevel_hw_enable()
129 		ret = clk_prepare_enable(hsotg->clk);  in __dwc2_lowlevel_hw_enable()
134 	if (hsotg->uphy)  in __dwc2_lowlevel_hw_enable()
135 		ret = usb_phy_init(hsotg->uphy);  in __dwc2_lowlevel_hw_enable()
136 	else if (hsotg->plat && hsotg->plat->phy_init)  in __dwc2_lowlevel_hw_enable()
137 		ret = hsotg->plat->phy_init(pdev, hsotg->plat->phy_type);  in __dwc2_lowlevel_hw_enable()
139 		ret = phy_power_on(hsotg->phy);  in __dwc2_lowlevel_hw_enable()
141 			ret = phy_init(hsotg->phy);  in __dwc2_lowlevel_hw_enable()
154 int dwc2_lowlevel_hw_enable(struct dwc2_hsotg *hsotg)  in dwc2_lowlevel_hw_enable()  argument
156 	int ret = __dwc2_lowlevel_hw_enable(hsotg);  in dwc2_lowlevel_hw_enable()
159 		hsotg->ll_hw_enabled = true;  in dwc2_lowlevel_hw_enable()
163 static int __dwc2_lowlevel_hw_disable(struct dwc2_hsotg *hsotg)  in __dwc2_lowlevel_hw_disable()  argument
165 	struct platform_device *pdev = to_platform_device(hsotg->dev);  in __dwc2_lowlevel_hw_disable()
168 	if (hsotg->uphy)  in __dwc2_lowlevel_hw_disable()
169 		usb_phy_shutdown(hsotg->uphy);  in __dwc2_lowlevel_hw_disable()
170 	else if (hsotg->plat && hsotg->plat->phy_exit)  in __dwc2_lowlevel_hw_disable()
171 		ret = hsotg->plat->phy_exit(pdev, hsotg->plat->phy_type);  in __dwc2_lowlevel_hw_disable()
173 		ret = phy_exit(hsotg->phy);  in __dwc2_lowlevel_hw_disable()
175 			ret = phy_power_off(hsotg->phy);  in __dwc2_lowlevel_hw_disable()
180 	if (hsotg->clk)  in __dwc2_lowlevel_hw_disable()
181 		clk_disable_unprepare(hsotg->clk);  in __dwc2_lowlevel_hw_disable()
183 	ret = regulator_bulk_disable(ARRAY_SIZE(hsotg->supplies),  in __dwc2_lowlevel_hw_disable()
184 				     hsotg->supplies);  in __dwc2_lowlevel_hw_disable()
196 int dwc2_lowlevel_hw_disable(struct dwc2_hsotg *hsotg)  in dwc2_lowlevel_hw_disable()  argument
198 	int ret = __dwc2_lowlevel_hw_disable(hsotg);  in dwc2_lowlevel_hw_disable()
201 		hsotg->ll_hw_enabled = false;  in dwc2_lowlevel_hw_disable()
205 static int dwc2_lowlevel_hw_init(struct dwc2_hsotg *hsotg)  in dwc2_lowlevel_hw_init()  argument
210 	hsotg->phyif = GUSBCFG_PHYIF16;  in dwc2_lowlevel_hw_init()
216 	hsotg->phy = devm_phy_get(hsotg->dev, "usb2-phy");  in dwc2_lowlevel_hw_init()
217 	if (IS_ERR(hsotg->phy)) {  in dwc2_lowlevel_hw_init()
218 		ret = PTR_ERR(hsotg->phy);  in dwc2_lowlevel_hw_init()
222 			hsotg->phy = NULL;  in dwc2_lowlevel_hw_init()
227 			dev_err(hsotg->dev, "error getting phy %d\n", ret);  in dwc2_lowlevel_hw_init()
232 	if (!hsotg->phy) {  in dwc2_lowlevel_hw_init()
233 		hsotg->uphy = devm_usb_get_phy(hsotg->dev, USB_PHY_TYPE_USB2);  in dwc2_lowlevel_hw_init()
234 		if (IS_ERR(hsotg->uphy)) {  in dwc2_lowlevel_hw_init()
235 			ret = PTR_ERR(hsotg->uphy);  in dwc2_lowlevel_hw_init()
239 				hsotg->uphy = NULL;  in dwc2_lowlevel_hw_init()
244 				dev_err(hsotg->dev, "error getting usb phy %d\n",  in dwc2_lowlevel_hw_init()
251 	hsotg->plat = dev_get_platdata(hsotg->dev);  in dwc2_lowlevel_hw_init()
253 	if (hsotg->phy) {  in dwc2_lowlevel_hw_init()
258 		if (phy_get_bus_width(hsotg->phy) == 8)  in dwc2_lowlevel_hw_init()
259 			hsotg->phyif = GUSBCFG_PHYIF8;  in dwc2_lowlevel_hw_init()
263 	hsotg->clk = devm_clk_get(hsotg->dev, "otg");  in dwc2_lowlevel_hw_init()
264 	if (IS_ERR(hsotg->clk)) {  in dwc2_lowlevel_hw_init()
265 		hsotg->clk = NULL;  in dwc2_lowlevel_hw_init()
266 		dev_dbg(hsotg->dev, "cannot get otg clock\n");  in dwc2_lowlevel_hw_init()
270 	for (i = 0; i < ARRAY_SIZE(hsotg->supplies); i++)  in dwc2_lowlevel_hw_init()
271 		hsotg->supplies[i].supply = dwc2_hsotg_supply_names[i];  in dwc2_lowlevel_hw_init()
273 	ret = devm_regulator_bulk_get(hsotg->dev, ARRAY_SIZE(hsotg->supplies),  in dwc2_lowlevel_hw_init()
274 				      hsotg->supplies);  in dwc2_lowlevel_hw_init()
276 		dev_err(hsotg->dev, "failed to request supplies: %d\n", ret);  in dwc2_lowlevel_hw_init()
295 	struct dwc2_hsotg *hsotg = platform_get_drvdata(dev);  in dwc2_driver_remove()  local
297 	dwc2_debugfs_exit(hsotg);  in dwc2_driver_remove()
298 	if (hsotg->hcd_enabled)  in dwc2_driver_remove()
299 		dwc2_hcd_remove(hsotg);  in dwc2_driver_remove()
300 	if (hsotg->gadget_enabled)  in dwc2_driver_remove()
301 		dwc2_hsotg_remove(hsotg);  in dwc2_driver_remove()
303 	if (hsotg->ll_hw_enabled)  in dwc2_driver_remove()
304 		dwc2_lowlevel_hw_disable(hsotg);  in dwc2_driver_remove()
335 	struct dwc2_hsotg *hsotg;  in dwc2_driver_probe()  local
355 	hsotg = devm_kzalloc(&dev->dev, sizeof(*hsotg), GFP_KERNEL);  in dwc2_driver_probe()
356 	if (!hsotg)  in dwc2_driver_probe()
359 	hsotg->dev = &dev->dev;  in dwc2_driver_probe()
371 	hsotg->regs = devm_ioremap_resource(&dev->dev, res);  in dwc2_driver_probe()
372 	if (IS_ERR(hsotg->regs))  in dwc2_driver_probe()
373 		return PTR_ERR(hsotg->regs);  in dwc2_driver_probe()
376 		(unsigned long)res->start, hsotg->regs);  in dwc2_driver_probe()
378 	hsotg->dr_mode = usb_get_dr_mode(&dev->dev);  in dwc2_driver_probe()
380 			hsotg->dr_mode != USB_DR_MODE_HOST) {  in dwc2_driver_probe()
381 		hsotg->dr_mode = USB_DR_MODE_HOST;  in dwc2_driver_probe()
382 		dev_warn(hsotg->dev,  in dwc2_driver_probe()
385 			hsotg->dr_mode != USB_DR_MODE_PERIPHERAL) {  in dwc2_driver_probe()
386 		hsotg->dr_mode = USB_DR_MODE_PERIPHERAL;  in dwc2_driver_probe()
387 		dev_warn(hsotg->dev,  in dwc2_driver_probe()
391 	retval = dwc2_lowlevel_hw_init(hsotg);  in dwc2_driver_probe()
395 	spin_lock_init(&hsotg->lock);  in dwc2_driver_probe()
397 	hsotg->core_params = devm_kzalloc(&dev->dev,  in dwc2_driver_probe()
398 				sizeof(*hsotg->core_params), GFP_KERNEL);  in dwc2_driver_probe()
399 	if (!hsotg->core_params)  in dwc2_driver_probe()
402 	dwc2_set_all_params(hsotg->core_params, -1);  in dwc2_driver_probe()
410 	dev_dbg(hsotg->dev, "registering common handler for irq%d\n",  in dwc2_driver_probe()
412 	retval = devm_request_irq(hsotg->dev, irq,  in dwc2_driver_probe()
414 				  dev_name(hsotg->dev), hsotg);  in dwc2_driver_probe()
418 	retval = dwc2_lowlevel_hw_enable(hsotg);  in dwc2_driver_probe()
423 	retval = dwc2_get_hwparams(hsotg);  in dwc2_driver_probe()
428 	dwc2_set_parameters(hsotg, params);  in dwc2_driver_probe()
430 	if (hsotg->dr_mode != USB_DR_MODE_HOST) {  in dwc2_driver_probe()
431 		retval = dwc2_gadget_init(hsotg, irq);  in dwc2_driver_probe()
434 		hsotg->gadget_enabled = 1;  in dwc2_driver_probe()
437 	if (hsotg->dr_mode != USB_DR_MODE_PERIPHERAL) {  in dwc2_driver_probe()
438 		retval = dwc2_hcd_init(hsotg, irq);  in dwc2_driver_probe()
440 			if (hsotg->gadget_enabled)  in dwc2_driver_probe()
441 				dwc2_hsotg_remove(hsotg);  in dwc2_driver_probe()
444 		hsotg->hcd_enabled = 1;  in dwc2_driver_probe()
447 	platform_set_drvdata(dev, hsotg);  in dwc2_driver_probe()
449 	dwc2_debugfs_init(hsotg);  in dwc2_driver_probe()
452 	if (hsotg->dr_mode == USB_DR_MODE_PERIPHERAL)  in dwc2_driver_probe()
453 		dwc2_lowlevel_hw_disable(hsotg);  in dwc2_driver_probe()
458 	dwc2_lowlevel_hw_disable(hsotg);  in dwc2_driver_probe()