Lines Matching refs:hsotg
20 static void dwc2_ovr_init(struct dwc2_hsotg *hsotg)
25 spin_lock_irqsave(&hsotg->lock, flags);
27 gotgctl = dwc2_readl(hsotg, GOTGCTL);
30 if (hsotg->role_sw_default_mode == USB_DR_MODE_HOST)
32 else if (hsotg->role_sw_default_mode == USB_DR_MODE_PERIPHERAL)
34 dwc2_writel(hsotg, gotgctl, GOTGCTL);
36 spin_unlock_irqrestore(&hsotg->lock, flags);
38 dwc2_force_mode(hsotg, (hsotg->dr_mode == USB_DR_MODE_HOST) ||
39 (hsotg->role_sw_default_mode == USB_DR_MODE_HOST));
42 static int dwc2_ovr_avalid(struct dwc2_hsotg *hsotg, bool valid)
44 u32 gotgctl = dwc2_readl(hsotg, GOTGCTL);
59 dwc2_writel(hsotg, gotgctl, GOTGCTL);
64 static int dwc2_ovr_bvalid(struct dwc2_hsotg *hsotg, bool valid)
66 u32 gotgctl = dwc2_readl(hsotg, GOTGCTL);
81 dwc2_writel(hsotg, gotgctl, GOTGCTL);
88 struct dwc2_hsotg *hsotg = usb_role_switch_get_drvdata(sw);
93 if ((role == USB_ROLE_DEVICE && hsotg->dr_mode == USB_DR_MODE_HOST) ||
94 (role == USB_ROLE_HOST && hsotg->dr_mode == USB_DR_MODE_PERIPHERAL))
100 if (role == USB_ROLE_NONE && hsotg->test_mode) {
101 dev_dbg(hsotg->dev, "Core is in test mode\n");
113 if (!hsotg->ll_hw_enabled && hsotg->clk) {
114 int ret = clk_prepare_enable(hsotg->clk);
120 spin_lock_irqsave(&hsotg->lock, flags);
124 if (hsotg->role_sw_default_mode == USB_DR_MODE_HOST)
126 else if (hsotg->role_sw_default_mode == USB_DR_MODE_PERIPHERAL)
131 already = dwc2_ovr_avalid(hsotg, true);
133 already = dwc2_ovr_bvalid(hsotg, true);
134 if (dwc2_is_device_enabled(hsotg)) {
136 dwc2_hsotg_core_connect(hsotg);
139 if (dwc2_is_device_mode(hsotg)) {
140 if (!dwc2_ovr_bvalid(hsotg, false))
142 dwc2_hsotg_core_disconnect(hsotg);
144 dwc2_ovr_avalid(hsotg, false);
148 spin_unlock_irqrestore(&hsotg->lock, flags);
150 if (!already && hsotg->dr_mode == USB_DR_MODE_OTG)
152 dwc2_force_mode(hsotg, role == USB_ROLE_HOST);
154 if (!hsotg->ll_hw_enabled && hsotg->clk)
155 clk_disable_unprepare(hsotg->clk);
157 dev_dbg(hsotg->dev, "%s-session valid\n",
164 int dwc2_drd_init(struct dwc2_hsotg *hsotg)
170 if (!device_property_read_bool(hsotg->dev, "usb-role-switch"))
173 hsotg->role_sw_default_mode = usb_get_role_switch_default_mode(hsotg->dev);
174 role_sw_desc.driver_data = hsotg;
175 role_sw_desc.fwnode = dev_fwnode(hsotg->dev);
179 role_sw = usb_role_switch_register(hsotg->dev, &role_sw_desc);
182 dev_err(hsotg->dev,
187 hsotg->role_sw = role_sw;
190 dwc2_ovr_init(hsotg);
195 void dwc2_drd_suspend(struct dwc2_hsotg *hsotg)
199 if (hsotg->role_sw && !hsotg->params.external_id_pin_ctl) {
200 gintmsk = dwc2_readl(hsotg, GINTMSK);
202 dwc2_writel(hsotg, gintmsk, GINTMSK);
203 gintsts = dwc2_readl(hsotg, GINTSTS);
204 dwc2_writel(hsotg, gintsts | GINTSTS_CONIDSTSCHNG, GINTSTS);
208 void dwc2_drd_resume(struct dwc2_hsotg *hsotg)
213 if (hsotg->role_sw) {
215 role = usb_role_switch_get_role(hsotg->role_sw);
218 if (hsotg->role_sw_default_mode == USB_DR_MODE_HOST)
220 else if (hsotg->role_sw_default_mode == USB_DR_MODE_PERIPHERAL)
226 dwc2_ovr_avalid(hsotg, true);
228 dwc2_ovr_bvalid(hsotg, true);
230 dwc2_force_mode(hsotg, role == USB_ROLE_HOST);
232 dev_dbg(hsotg->dev, "resuming %s-session valid\n",
237 if (hsotg->role_sw && !hsotg->params.external_id_pin_ctl) {
238 gintsts = dwc2_readl(hsotg, GINTSTS);
239 dwc2_writel(hsotg, gintsts | GINTSTS_CONIDSTSCHNG, GINTSTS);
240 gintmsk = dwc2_readl(hsotg, GINTMSK);
242 dwc2_writel(hsotg, gintmsk, GINTMSK);
246 void dwc2_drd_exit(struct dwc2_hsotg *hsotg)
248 if (hsotg->role_sw)
249 usb_role_switch_unregister(hsotg->role_sw);