1 // SPDX-License-Identifier: GPL-2.0
3  * mtu3_dr.c - dual role switch and host glue layer
27 /* mt8183 */
65  * ip-sleep wakeup mode:
72 	switch (ssusb->uwk_vers) {  in ssusb_wakeup_ip_sleep_set()
74 		reg = ssusb->uwk_reg_base + PERI_WK_CTRL1;  in ssusb_wakeup_ip_sleep_set()
79 		reg = ssusb->uwk_reg_base + PERI_WK_CTRL0;  in ssusb_wakeup_ip_sleep_set()
84 		reg = ssusb->uwk_reg_base + PERI_WK_CTRL0;  in ssusb_wakeup_ip_sleep_set()
89 		reg = ssusb->uwk_reg_base + PERI_WK_CTRL1_8195;  in ssusb_wakeup_ip_sleep_set()
94 		reg = ssusb->uwk_reg_base + PERI_WK_CTRL0_8195;  in ssusb_wakeup_ip_sleep_set()
99 		reg = ssusb->uwk_reg_base + PERI_WK_CTRL0_8195;  in ssusb_wakeup_ip_sleep_set()
104 		reg = ssusb->uwk_reg_base + PERI_SSUSB_SPM_CTRL;  in ssusb_wakeup_ip_sleep_set()
111 	regmap_update_bits(ssusb->uwk, reg, msk, val);  in ssusb_wakeup_ip_sleep_set()
121 	ssusb->uwk_en = of_property_read_bool(dn, "wakeup-source");  in ssusb_wakeup_of_property_parse()
122 	if (!ssusb->uwk_en)  in ssusb_wakeup_of_property_parse()
126 				"mediatek,syscon-wakeup", 2, 0, &args);  in ssusb_wakeup_of_property_parse()
130 	ssusb->uwk_reg_base = args.args[0];  in ssusb_wakeup_of_property_parse()
131 	ssusb->uwk_vers = args.args[1];  in ssusb_wakeup_of_property_parse()
132 	ssusb->uwk = syscon_node_to_regmap(args.np);  in ssusb_wakeup_of_property_parse()
134 	dev_info(ssusb->dev, "uwk - reg:0x%x, version:%d\n",  in ssusb_wakeup_of_property_parse()
135 			ssusb->uwk_reg_base, ssusb->uwk_vers);  in ssusb_wakeup_of_property_parse()
137 	return PTR_ERR_OR_ZERO(ssusb->uwk);  in ssusb_wakeup_of_property_parse()
142 	if (ssusb->uwk_en)  in ssusb_wakeup_set()
150 	xhci_cap = mtu3_readl(ssusb->ippc_base, U3D_SSUSB_IP_XHCI_CAP);  in host_ports_num_get()
151 	ssusb->u2_ports = SSUSB_IP_XHCI_U2_PORT_NUM(xhci_cap);  in host_ports_num_get()
152 	ssusb->u3_ports = SSUSB_IP_XHCI_U3_PORT_NUM(xhci_cap);  in host_ports_num_get()
154 	dev_dbg(ssusb->dev, "host - u2_ports:%d, u3_ports:%d\n",  in host_ports_num_get()
155 		 ssusb->u2_ports, ssusb->u3_ports);  in host_ports_num_get()
161 	void __iomem *ibase = ssusb->ippc_base;  in ssusb_host_enable()
162 	int num_u3p = ssusb->u3_ports;  in ssusb_host_enable()
163 	int num_u2p = ssusb->u2_ports;  in ssusb_host_enable()
175 		if ((0x1 << i) & ssusb->u3p_dis_msk) {  in ssusb_host_enable()
188 		if ((0x1 << i) & ssusb->u2p_dis_msk)  in ssusb_host_enable()
206 	void __iomem *ibase = ssusb->ippc_base;  in ssusb_host_disable()
207 	int num_u3p = ssusb->u3_ports;  in ssusb_host_disable()
208 	int num_u2p = ssusb->u2_ports;  in ssusb_host_disable()
214 		if ((0x1 << i) & ssusb->u3p_dis_msk)  in ssusb_host_disable()
224 		if ((0x1 << i) & ssusb->u2p_dis_msk)  in ssusb_host_disable()
240 	void __iomem *ibase = ssusb->ippc_base;  in ssusb_host_resume()
241 	int u3p_skip_msk = ssusb->u3p_dis_msk;  in ssusb_host_resume()
242 	int u2p_skip_msk = ssusb->u2p_dis_msk;  in ssusb_host_resume()
243 	int num_u3p = ssusb->u3_ports;  in ssusb_host_resume()
244 	int num_u2p = ssusb->u2_ports;  in ssusb_host_resume()
250 		if (ssusb->otg_switch.is_u3_drd)  in ssusb_host_resume()
283 	void __iomem *ibase = ssusb->ippc_base;  in ssusb_host_suspend()
284 	int num_u3p = ssusb->u3_ports;  in ssusb_host_suspend()
285 	int num_u2p = ssusb->u2_ports;  in ssusb_host_suspend()
291 		if ((0x1 << i) & ssusb->u3p_dis_msk)  in ssusb_host_suspend()
301 		if ((0x1 << i) & ssusb->u2p_dis_msk)  in ssusb_host_suspend()
326 	/* if port0 supports dual-role, works as host mode by default */  in ssusb_host_setup()
327 	ssusb_set_vbus(&ssusb->otg_switch, 1);  in ssusb_host_setup()
332 	if (ssusb->is_host)  in ssusb_host_cleanup()
333 		ssusb_set_vbus(&ssusb->otg_switch, 0);  in ssusb_host_cleanup()
346 	struct device *parent_dev = ssusb->dev;  in ssusb_host_init()
358 	dev_info(parent_dev, "xHCI platform device register success...\n");  in ssusb_host_init()
365 	of_platform_depopulate(ssusb->dev);  in ssusb_host_exit()