55 static int mtk_musb_clks_get(struct mtk_glue *glue)  in mtk_musb_clks_get()  argument
57 	struct device *dev = glue->dev;  in mtk_musb_clks_get()
59 	glue->clks[0].id = "main";  in mtk_musb_clks_get()
60 	glue->clks[1].id = "mcu";  in mtk_musb_clks_get()
61 	glue->clks[2].id = "univpll";  in mtk_musb_clks_get()
63 	return devm_clk_bulk_get(dev, MTK_MUSB_CLKS_NUM, glue->clks);  in mtk_musb_clks_get()
66 static int mtk_otg_switch_set(struct mtk_glue *glue, enum usb_role role)  in mtk_otg_switch_set()  argument
68 	struct musb *musb = glue->musb;  in mtk_otg_switch_set()
72 	if (role == glue->role)  in mtk_otg_switch_set()
78 		glue->phy_mode = PHY_MODE_USB_HOST;  in mtk_otg_switch_set()
80 		if (glue->role == USB_ROLE_NONE)  in mtk_otg_switch_set()
81 			phy_power_on(glue->phy);  in mtk_otg_switch_set()
89 		glue->phy_mode = PHY_MODE_USB_DEVICE;  in mtk_otg_switch_set()
93 		if (glue->role == USB_ROLE_NONE)  in mtk_otg_switch_set()
94 			phy_power_on(glue->phy);  in mtk_otg_switch_set()
99 		glue->phy_mode = PHY_MODE_USB_OTG;  in mtk_otg_switch_set()
103 		if (glue->role != USB_ROLE_NONE)  in mtk_otg_switch_set()
104 			phy_power_off(glue->phy);  in mtk_otg_switch_set()
108 		dev_err(glue->dev, "Invalid State\n");  in mtk_otg_switch_set()
112 	glue->role = new_role;  in mtk_otg_switch_set()
113 	phy_set_mode(glue->phy, glue->phy_mode);  in mtk_otg_switch_set()
125 	struct mtk_glue *glue = usb_role_switch_get_drvdata(sw);  in musb_usb_role_sx_get()  local
127 	return glue->role;  in musb_usb_role_sx_get()
130 static int mtk_otg_switch_init(struct mtk_glue *glue)  in mtk_otg_switch_init()  argument
137 	role_sx_desc.fwnode = dev_fwnode(glue->dev);  in mtk_otg_switch_init()
138 	role_sx_desc.driver_data = glue;  in mtk_otg_switch_init()
139 	glue->role_sw = usb_role_switch_register(glue->dev, &role_sx_desc);  in mtk_otg_switch_init()
141 	return PTR_ERR_OR_ZERO(glue->role_sw);  in mtk_otg_switch_init()
144 static void mtk_otg_switch_exit(struct mtk_glue *glue)  in mtk_otg_switch_exit()  argument
146 	return usb_role_switch_unregister(glue->role_sw);  in mtk_otg_switch_exit()
221 	struct mtk_glue *glue = dev_get_drvdata(dev->parent);  in mtk_musb_set_mode()  local
239 		dev_err(glue->dev, "Invalid mode request\n");  in mtk_musb_set_mode()
243 	if (glue->phy_mode == new_mode)  in mtk_musb_set_mode()
247 		dev_err(glue->dev, "Does not support changing modes\n");  in mtk_musb_set_mode()
251 	mtk_otg_switch_set(glue, new_role);  in mtk_musb_set_mode()
258 	struct mtk_glue *glue = dev_get_drvdata(dev->parent);  in mtk_musb_init()  local
261 	glue->musb = musb;  in mtk_musb_init()
262 	musb->phy = glue->phy;  in mtk_musb_init()
263 	musb->xceiv = glue->xceiv;  in mtk_musb_init()
272 		ret = mtk_otg_switch_init(glue);  in mtk_musb_init()
277 	ret = phy_init(glue->phy);  in mtk_musb_init()
281 	ret = phy_power_on(glue->phy);  in mtk_musb_init()
285 	phy_set_mode(glue->phy, glue->phy_mode);  in mtk_musb_init()
296 	phy_exit(glue->phy);  in mtk_musb_init()
299 		mtk_otg_switch_exit(glue);  in mtk_musb_init()
337 	struct mtk_glue *glue = dev_get_drvdata(dev->parent);  in mtk_musb_exit()  local
339 	mtk_otg_switch_exit(glue);  in mtk_musb_exit()
340 	phy_power_off(glue->phy);  in mtk_musb_exit()
341 	phy_exit(glue->phy);  in mtk_musb_exit()
342 	clk_bulk_disable_unprepare(MTK_MUSB_CLKS_NUM, glue->clks);  in mtk_musb_exit()
403 	struct mtk_glue *glue;  in mtk_musb_probe()  local
409 	glue = devm_kzalloc(dev, sizeof(*glue), GFP_KERNEL);  in mtk_musb_probe()
410 	if (!glue)  in mtk_musb_probe()
413 	glue->dev = dev;  in mtk_musb_probe()
423 	ret = mtk_musb_clks_get(glue);  in mtk_musb_probe()
438 		glue->phy_mode = PHY_MODE_USB_HOST;  in mtk_musb_probe()
439 		glue->role = USB_ROLE_HOST;  in mtk_musb_probe()
442 		glue->phy_mode = PHY_MODE_USB_DEVICE;  in mtk_musb_probe()
443 		glue->role = USB_ROLE_DEVICE;  in mtk_musb_probe()
446 		glue->phy_mode = PHY_MODE_USB_OTG;  in mtk_musb_probe()
447 		glue->role = USB_ROLE_NONE;  in mtk_musb_probe()
454 	glue->phy = devm_of_phy_get_by_index(dev, np, 0);  in mtk_musb_probe()
455 	if (IS_ERR(glue->phy))  in mtk_musb_probe()
456 		return dev_err_probe(dev, PTR_ERR(glue->phy),  in mtk_musb_probe()
459 	glue->usb_phy = usb_phy_generic_register();  in mtk_musb_probe()
460 	if (IS_ERR(glue->usb_phy))  in mtk_musb_probe()
461 		return dev_err_probe(dev, PTR_ERR(glue->usb_phy),  in mtk_musb_probe()
464 	glue->xceiv = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);  in mtk_musb_probe()
465 	if (IS_ERR(glue->xceiv)) {  in mtk_musb_probe()
466 		ret = PTR_ERR(glue->xceiv);  in mtk_musb_probe()
471 	platform_set_drvdata(pdev, glue);  in mtk_musb_probe()
475 	ret = clk_bulk_prepare_enable(MTK_MUSB_CLKS_NUM, glue->clks);  in mtk_musb_probe()
488 	glue->musb_pdev = platform_device_register_full(&pinfo);  in mtk_musb_probe()
489 	if (IS_ERR(glue->musb_pdev)) {  in mtk_musb_probe()
490 		ret = PTR_ERR(glue->musb_pdev);  in mtk_musb_probe()
498 	clk_bulk_disable_unprepare(MTK_MUSB_CLKS_NUM, glue->clks);  in mtk_musb_probe()
503 	usb_phy_generic_unregister(glue->usb_phy);  in mtk_musb_probe()
509 	struct mtk_glue *glue = platform_get_drvdata(pdev);  in mtk_musb_remove()  local
510 	struct platform_device *usb_phy = glue->usb_phy;  in mtk_musb_remove()
512 	platform_device_unregister(glue->musb_pdev);  in mtk_musb_remove()
535 MODULE_DESCRIPTION("MediaTek MUSB Glue Layer");