156 static u32 dwc3_omap_read_utmi_ctrl(struct dwc3_omap *omap)  in dwc3_omap_read_utmi_ctrl()  argument
158 	return dwc3_omap_readl(omap->base, USBOTGSS_UTMI_OTG_CTRL +  in dwc3_omap_read_utmi_ctrl()
159 							omap->utmi_otg_offset);  in dwc3_omap_read_utmi_ctrl()
162 static void dwc3_omap_write_utmi_ctrl(struct dwc3_omap *omap, u32 value)  in dwc3_omap_write_utmi_ctrl()  argument
164 	dwc3_omap_writel(omap->base, USBOTGSS_UTMI_OTG_CTRL +  in dwc3_omap_write_utmi_ctrl()
165 					omap->utmi_otg_offset, value);  in dwc3_omap_write_utmi_ctrl()
169 static u32 dwc3_omap_read_irq0_status(struct dwc3_omap *omap)  in dwc3_omap_read_irq0_status()  argument
171 	return dwc3_omap_readl(omap->base, USBOTGSS_IRQSTATUS_0 -  in dwc3_omap_read_irq0_status()
172 						omap->irq0_offset);  in dwc3_omap_read_irq0_status()
175 static void dwc3_omap_write_irq0_status(struct dwc3_omap *omap, u32 value)  in dwc3_omap_write_irq0_status()  argument
177 	dwc3_omap_writel(omap->base, USBOTGSS_IRQSTATUS_0 -  in dwc3_omap_write_irq0_status()
178 						omap->irq0_offset, value);  in dwc3_omap_write_irq0_status()
182 static u32 dwc3_omap_read_irqmisc_status(struct dwc3_omap *omap)  in dwc3_omap_read_irqmisc_status()  argument
184 	return dwc3_omap_readl(omap->base, USBOTGSS_IRQSTATUS_MISC +  in dwc3_omap_read_irqmisc_status()
185 						omap->irqmisc_offset);  in dwc3_omap_read_irqmisc_status()
188 static void dwc3_omap_write_irqmisc_status(struct dwc3_omap *omap, u32 value)  in dwc3_omap_write_irqmisc_status()  argument
190 	dwc3_omap_writel(omap->base, USBOTGSS_IRQSTATUS_MISC +  in dwc3_omap_write_irqmisc_status()
191 					omap->irqmisc_offset, value);  in dwc3_omap_write_irqmisc_status()
195 static void dwc3_omap_write_irqmisc_set(struct dwc3_omap *omap, u32 value)  in dwc3_omap_write_irqmisc_set()  argument
197 	dwc3_omap_writel(omap->base, USBOTGSS_IRQENABLE_SET_MISC +  in dwc3_omap_write_irqmisc_set()
198 						omap->irqmisc_offset, value);  in dwc3_omap_write_irqmisc_set()
202 static void dwc3_omap_write_irq0_set(struct dwc3_omap *omap, u32 value)  in dwc3_omap_write_irq0_set()  argument
204 	dwc3_omap_writel(omap->base, USBOTGSS_IRQENABLE_SET_0 -  in dwc3_omap_write_irq0_set()
205 						omap->irq0_offset, value);  in dwc3_omap_write_irq0_set()
208 static void dwc3_omap_write_irqmisc_clr(struct dwc3_omap *omap, u32 value)  in dwc3_omap_write_irqmisc_clr()  argument
210 	dwc3_omap_writel(omap->base, USBOTGSS_IRQENABLE_CLR_MISC +  in dwc3_omap_write_irqmisc_clr()
211 						omap->irqmisc_offset, value);  in dwc3_omap_write_irqmisc_clr()
214 static void dwc3_omap_write_irq0_clr(struct dwc3_omap *omap, u32 value)  in dwc3_omap_write_irq0_clr()  argument
216 	dwc3_omap_writel(omap->base, USBOTGSS_IRQENABLE_CLR_0 -  in dwc3_omap_write_irq0_clr()
217 						omap->irq0_offset, value);  in dwc3_omap_write_irq0_clr()
220 static void dwc3_omap_set_mailbox(struct dwc3_omap *omap,  in dwc3_omap_set_mailbox()  argument
228 		dev_dbg(omap->dev, "ID GND\n");  in dwc3_omap_set_mailbox()
230 		if (omap->vbus_reg) {  in dwc3_omap_set_mailbox()
231 			ret = regulator_enable(omap->vbus_reg);  in dwc3_omap_set_mailbox()
233 				dev_dbg(omap->dev, "regulator enable failed\n");  in dwc3_omap_set_mailbox()
238 		val = dwc3_omap_read_utmi_ctrl(omap);  in dwc3_omap_set_mailbox()
244 		dwc3_omap_write_utmi_ctrl(omap, val);  in dwc3_omap_set_mailbox()
248 		dev_dbg(omap->dev, "VBUS Connect\n");  in dwc3_omap_set_mailbox()
250 		val = dwc3_omap_read_utmi_ctrl(omap);  in dwc3_omap_set_mailbox()
256 		dwc3_omap_write_utmi_ctrl(omap, val);  in dwc3_omap_set_mailbox()
260 		if (omap->vbus_reg)  in dwc3_omap_set_mailbox()
261 			regulator_disable(omap->vbus_reg);  in dwc3_omap_set_mailbox()
264 		dev_dbg(omap->dev, "VBUS Disconnect\n");  in dwc3_omap_set_mailbox()
266 		val = dwc3_omap_read_utmi_ctrl(omap);  in dwc3_omap_set_mailbox()
272 		dwc3_omap_write_utmi_ctrl(omap, val);  in dwc3_omap_set_mailbox()
276 		dev_dbg(omap->dev, "invalid state\n");  in dwc3_omap_set_mailbox()
282 	struct dwc3_omap	*omap = _omap;  in dwc3_omap_interrupt()  local
285 	reg = dwc3_omap_read_irqmisc_status(omap);  in dwc3_omap_interrupt()
288 		dev_dbg(omap->dev, "DMA Disable was Cleared\n");  in dwc3_omap_interrupt()
289 		omap->dma_status = false;  in dwc3_omap_interrupt()
293 		dev_dbg(omap->dev, "OTG Event\n");  in dwc3_omap_interrupt()
296 		dev_dbg(omap->dev, "DRVVBUS Rise\n");  in dwc3_omap_interrupt()
299 		dev_dbg(omap->dev, "CHRGVBUS Rise\n");  in dwc3_omap_interrupt()
302 		dev_dbg(omap->dev, "DISCHRGVBUS Rise\n");  in dwc3_omap_interrupt()
305 		dev_dbg(omap->dev, "IDPULLUP Rise\n");  in dwc3_omap_interrupt()
308 		dev_dbg(omap->dev, "DRVVBUS Fall\n");  in dwc3_omap_interrupt()
311 		dev_dbg(omap->dev, "CHRGVBUS Fall\n");  in dwc3_omap_interrupt()
314 		dev_dbg(omap->dev, "DISCHRGVBUS Fall\n");  in dwc3_omap_interrupt()
317 		dev_dbg(omap->dev, "IDPULLUP Fall\n");  in dwc3_omap_interrupt()
319 	dwc3_omap_write_irqmisc_status(omap, reg);  in dwc3_omap_interrupt()
321 	reg = dwc3_omap_read_irq0_status(omap);  in dwc3_omap_interrupt()
323 	dwc3_omap_write_irq0_status(omap, reg);  in dwc3_omap_interrupt()
328 static void dwc3_omap_enable_irqs(struct dwc3_omap *omap)  in dwc3_omap_enable_irqs()  argument
334 	dwc3_omap_write_irq0_set(omap, reg);  in dwc3_omap_enable_irqs()
346 	dwc3_omap_write_irqmisc_set(omap, reg);  in dwc3_omap_enable_irqs()
349 static void dwc3_omap_disable_irqs(struct dwc3_omap *omap)  in dwc3_omap_disable_irqs()  argument
355 	dwc3_omap_write_irq0_clr(omap, reg);  in dwc3_omap_disable_irqs()
367 	dwc3_omap_write_irqmisc_clr(omap, reg);  in dwc3_omap_disable_irqs()
375 	struct dwc3_omap *omap = container_of(nb, struct dwc3_omap, id_nb);  in dwc3_omap_id_notifier()  local
378 		dwc3_omap_set_mailbox(omap, OMAP_DWC3_ID_GROUND);  in dwc3_omap_id_notifier()
380 		dwc3_omap_set_mailbox(omap, OMAP_DWC3_ID_FLOAT);  in dwc3_omap_id_notifier()
388 	struct dwc3_omap *omap = container_of(nb, struct dwc3_omap, vbus_nb);  in dwc3_omap_vbus_notifier()  local
391 		dwc3_omap_set_mailbox(omap, OMAP_DWC3_VBUS_VALID);  in dwc3_omap_vbus_notifier()
393 		dwc3_omap_set_mailbox(omap, OMAP_DWC3_VBUS_OFF);  in dwc3_omap_vbus_notifier()
398 static void dwc3_omap_map_offset(struct dwc3_omap *omap)  in dwc3_omap_map_offset()  argument
400 	struct device_node	*node = omap->dev->of_node;  in dwc3_omap_map_offset()
411 		omap->irq_eoi_offset = USBOTGSS_EOI_OFFSET;  in dwc3_omap_map_offset()
412 		omap->irq0_offset = USBOTGSS_IRQ0_OFFSET;  in dwc3_omap_map_offset()
413 		omap->irqmisc_offset = USBOTGSS_IRQMISC_OFFSET;  in dwc3_omap_map_offset()
414 		omap->utmi_otg_offset = USBOTGSS_UTMI_OTG_OFFSET;  in dwc3_omap_map_offset()
415 		omap->debug_offset = USBOTGSS_DEBUG_OFFSET;  in dwc3_omap_map_offset()
419 static void dwc3_omap_set_utmi_mode(struct dwc3_omap *omap)  in dwc3_omap_set_utmi_mode()  argument
422 	struct device_node	*node = omap->dev->of_node;  in dwc3_omap_set_utmi_mode()
425 	reg = dwc3_omap_read_utmi_ctrl(omap);  in dwc3_omap_set_utmi_mode()
437 		dev_dbg(omap->dev, "UNKNOWN utmi mode %d\n", utmi_mode);  in dwc3_omap_set_utmi_mode()
440 	dwc3_omap_write_utmi_ctrl(omap, reg);  in dwc3_omap_set_utmi_mode()
443 static int dwc3_omap_extcon_register(struct dwc3_omap *omap)  in dwc3_omap_extcon_register()  argument
446 	struct device_node	*node = omap->dev->of_node;  in dwc3_omap_extcon_register()
450 		edev = extcon_get_edev_by_phandle(omap->dev, 0);  in dwc3_omap_extcon_register()
452 			dev_vdbg(omap->dev, "couldn't get extcon device\n");  in dwc3_omap_extcon_register()
456 		omap->vbus_nb.notifier_call = dwc3_omap_vbus_notifier;  in dwc3_omap_extcon_register()
457 		ret = extcon_register_interest(&omap->extcon_vbus_dev,  in dwc3_omap_extcon_register()
459 					       &omap->vbus_nb);  in dwc3_omap_extcon_register()
461 			dev_vdbg(omap->dev, "failed to register notifier for USB\n");  in dwc3_omap_extcon_register()
463 		omap->id_nb.notifier_call = dwc3_omap_id_notifier;  in dwc3_omap_extcon_register()
464 		ret = extcon_register_interest(&omap->extcon_id_dev,  in dwc3_omap_extcon_register()
466 					       &omap->id_nb);  in dwc3_omap_extcon_register()
468 			dev_vdbg(omap->dev, "failed to register notifier for USB-HOST\n");  in dwc3_omap_extcon_register()
471 			dwc3_omap_set_mailbox(omap, OMAP_DWC3_VBUS_VALID);  in dwc3_omap_extcon_register()
473 			dwc3_omap_set_mailbox(omap, OMAP_DWC3_ID_GROUND);  in dwc3_omap_extcon_register()
483 	struct dwc3_omap	*omap;  in dwc3_omap_probe()  local
500 	omap = devm_kzalloc(dev, sizeof(*omap), GFP_KERNEL);  in dwc3_omap_probe()
501 	if (!omap)  in dwc3_omap_probe()
504 	platform_set_drvdata(pdev, omap);  in dwc3_omap_probe()
525 	omap->dev	= dev;  in dwc3_omap_probe()
526 	omap->irq	= irq;  in dwc3_omap_probe()
527 	omap->base	= base;  in dwc3_omap_probe()
528 	omap->vbus_reg	= vbus_reg;  in dwc3_omap_probe()
538 	dwc3_omap_map_offset(omap);  in dwc3_omap_probe()
539 	dwc3_omap_set_utmi_mode(omap);  in dwc3_omap_probe()
542 	reg = dwc3_omap_readl(omap->base, USBOTGSS_SYSCONFIG);  in dwc3_omap_probe()
543 	omap->dma_status = !!(reg & USBOTGSS_SYSCONFIG_DMADISABLE);  in dwc3_omap_probe()
545 	ret = devm_request_irq(dev, omap->irq, dwc3_omap_interrupt, 0,  in dwc3_omap_probe()
546 			"dwc3-omap", omap);  in dwc3_omap_probe()
549 				omap->irq, ret);  in dwc3_omap_probe()
553 	dwc3_omap_enable_irqs(omap);  in dwc3_omap_probe()
555 	ret = dwc3_omap_extcon_register(omap);  in dwc3_omap_probe()
568 	if (omap->extcon_vbus_dev.edev)  in dwc3_omap_probe()
569 		extcon_unregister_interest(&omap->extcon_vbus_dev);  in dwc3_omap_probe()
570 	if (omap->extcon_id_dev.edev)  in dwc3_omap_probe()
571 		extcon_unregister_interest(&omap->extcon_id_dev);  in dwc3_omap_probe()
574 	dwc3_omap_disable_irqs(omap);  in dwc3_omap_probe()
587 	struct dwc3_omap	*omap = platform_get_drvdata(pdev);  in dwc3_omap_remove()  local
589 	if (omap->extcon_vbus_dev.edev)  in dwc3_omap_remove()
590 		extcon_unregister_interest(&omap->extcon_vbus_dev);  in dwc3_omap_remove()
591 	if (omap->extcon_id_dev.edev)  in dwc3_omap_remove()
592 		extcon_unregister_interest(&omap->extcon_id_dev);  in dwc3_omap_remove()
593 	dwc3_omap_disable_irqs(omap);  in dwc3_omap_remove()
594 	of_platform_depopulate(omap->dev);  in dwc3_omap_remove()
615 	struct dwc3_omap	*omap = dev_get_drvdata(dev);  in dwc3_omap_suspend()  local
617 	omap->utmi_otg_ctrl = dwc3_omap_read_utmi_ctrl(omap);  in dwc3_omap_suspend()
618 	dwc3_omap_disable_irqs(omap);  in dwc3_omap_suspend()
625 	struct dwc3_omap	*omap = dev_get_drvdata(dev);  in dwc3_omap_resume()  local
627 	dwc3_omap_write_utmi_ctrl(omap, omap->utmi_otg_ctrl);  in dwc3_omap_resume()
628 	dwc3_omap_enable_irqs(omap);  in dwc3_omap_resume()