1 // SPDX-License-Identifier: GPL-2.0+
15 #include <linux/usb/chipidea.h>
16 #include <linux/usb/of.h>
87 	{ .compatible = "fsl,imx23-usb", .data = &imx23_usb_data},
88 	{ .compatible = "fsl,imx28-usb", .data = &imx28_usb_data},
89 	{ .compatible = "fsl,imx27-usb", .data = &imx27_usb_data},
90 	{ .compatible = "fsl,imx6q-usb", .data = &imx6q_usb_data},
91 	{ .compatible = "fsl,imx6sl-usb", .data = &imx6sl_usb_data},
92 	{ .compatible = "fsl,imx6sx-usb", .data = &imx6sx_usb_data},
93 	{ .compatible = "fsl,imx6ul-usb", .data = &imx6ul_usb_data},
94 	{ .compatible = "fsl,imx7d-usb", .data = &imx7d_usb_data},
95 	{ .compatible = "fsl,imx7ulp-usb", .data = &imx7ulp_usb_data},
96 	{ .compatible = "fsl,imx8ulp-usb", .data = &imx8ulp_usb_data},
97 	{ .compatible = "nxp,s32g2-usb", .data = &s32g_usb_data},
120 	/* --------------------------------- */
130 	struct device_node *np = dev->of_node;  in usbmisc_get_init_data()
144 		return ERR_PTR(-ENOMEM);  in usbmisc_get_init_data()
146 	ret = of_parse_phandle_with_args(np, "fsl,usbmisc", "#index-cells",  in usbmisc_get_init_data()
154 	data->index = args.args[0];  in usbmisc_get_init_data()
160 		return ERR_PTR(-EPROBE_DEFER);  in usbmisc_get_init_data()
163 		put_device(&misc_pdev->dev);  in usbmisc_get_init_data()
164 		return ERR_PTR(-EPROBE_DEFER);  in usbmisc_get_init_data()
166 	data->dev = &misc_pdev->dev;  in usbmisc_get_init_data()
172 	if (of_property_read_bool(np, "disable-over-current")) {  in usbmisc_get_init_data()
173 		data->disable_oc = 1;  in usbmisc_get_init_data()
174 	} else if (of_property_read_bool(np, "over-current-active-high")) {  in usbmisc_get_init_data()
175 		data->oc_pol_active_low = 0;  in usbmisc_get_init_data()
176 		data->oc_pol_configured = 1;  in usbmisc_get_init_data()
177 	} else if (of_property_read_bool(np, "over-current-active-low")) {  in usbmisc_get_init_data()
178 		data->oc_pol_active_low = 1;  in usbmisc_get_init_data()
179 		data->oc_pol_configured = 1;  in usbmisc_get_init_data()
184 	data->pwr_pol = of_property_read_bool(np, "power-active-high");  in usbmisc_get_init_data()
185 	data->evdo = of_property_read_bool(np, "external-vbus-divider");  in usbmisc_get_init_data()
188 		data->ulpi = 1;  in usbmisc_get_init_data()
190 	if (of_property_read_u32(np, "samsung,picophy-pre-emp-curr-control",  in usbmisc_get_init_data()
191 			&data->emp_curr_control))  in usbmisc_get_init_data()
192 		data->emp_curr_control = -1;  in usbmisc_get_init_data()
193 	if (of_property_read_u32(np, "samsung,picophy-dc-vol-level-adjust",  in usbmisc_get_init_data()
194 			&data->dc_vol_level_adjust))  in usbmisc_get_init_data()
195 		data->dc_vol_level_adjust = -1;  in usbmisc_get_init_data()
196 	if (of_property_read_u32(np, "fsl,picophy-rise-fall-time-adjust",  in usbmisc_get_init_data()
197 			&data->rise_fall_time_adjust))  in usbmisc_get_init_data()
198 		data->rise_fall_time_adjust = -1;  in usbmisc_get_init_data()
209 	data->clk_ipg = devm_clk_get(dev, "ipg");  in imx_get_clks()
210 	if (IS_ERR(data->clk_ipg)) {  in imx_get_clks()
212 		data->clk = devm_clk_get(dev, NULL);  in imx_get_clks()
213 		if (IS_ERR(data->clk)) {  in imx_get_clks()
214 			ret = PTR_ERR(data->clk);  in imx_get_clks()
217 				PTR_ERR(data->clk), PTR_ERR(data->clk_ipg));  in imx_get_clks()
223 		data->clk_wakeup = devm_clk_get_optional(dev, "usb_wakeup");  in imx_get_clks()
224 		if (IS_ERR(data->clk_wakeup))  in imx_get_clks()
225 			ret = dev_err_probe(dev, PTR_ERR(data->clk_wakeup),  in imx_get_clks()
230 	data->clk_ahb = devm_clk_get(dev, "ahb");  in imx_get_clks()
231 	if (IS_ERR(data->clk_ahb)) {  in imx_get_clks()
232 		ret = PTR_ERR(data->clk_ahb);  in imx_get_clks()
238 	data->clk_per = devm_clk_get(dev, "per");  in imx_get_clks()
239 	if (IS_ERR(data->clk_per)) {  in imx_get_clks()
240 		ret = PTR_ERR(data->clk_per);  in imx_get_clks()
246 	data->need_three_clks = true;  in imx_get_clks()
255 	if (data->need_three_clks) {  in imx_prepare_enable_clks()
256 		ret = clk_prepare_enable(data->clk_ipg);  in imx_prepare_enable_clks()
264 		ret = clk_prepare_enable(data->clk_ahb);  in imx_prepare_enable_clks()
269 			clk_disable_unprepare(data->clk_ipg);  in imx_prepare_enable_clks()
273 		ret = clk_prepare_enable(data->clk_per);  in imx_prepare_enable_clks()
278 			clk_disable_unprepare(data->clk_ahb);  in imx_prepare_enable_clks()
279 			clk_disable_unprepare(data->clk_ipg);  in imx_prepare_enable_clks()
283 		ret = clk_prepare_enable(data->clk);  in imx_prepare_enable_clks()
299 	if (data->need_three_clks) {  in imx_disable_unprepare_clks()
300 		clk_disable_unprepare(data->clk_per);  in imx_disable_unprepare_clks()
301 		clk_disable_unprepare(data->clk_ahb);  in imx_disable_unprepare_clks()
302 		clk_disable_unprepare(data->clk_ipg);  in imx_disable_unprepare_clks()
304 		clk_disable_unprepare(data->clk);  in imx_disable_unprepare_clks()
310 	struct device *dev = ci->dev->parent;  in ci_hdrc_imx_notify_event()
313 	struct imx_usbmisc_data *mdata = data->usbmisc_data;  in ci_hdrc_imx_notify_event()
317 		if (data->pinctrl) {  in ci_hdrc_imx_notify_event()
318 			ret = pinctrl_select_state(data->pinctrl,  in ci_hdrc_imx_notify_event()
319 					data->pinctrl_hsic_active);  in ci_hdrc_imx_notify_event()
333 		if (ci->vbus_active)  in ci_hdrc_imx_notify_event()
337 		if (ci->usb_phy)  in ci_hdrc_imx_notify_event()
338 			schedule_work(&ci->usb_phy->chg_work);  in ci_hdrc_imx_notify_event()
341 		if (ci->role == CI_ROLE_GADGET)  in ci_hdrc_imx_notify_event()
342 			imx_usbmisc_pullup(data->usbmisc_data,  in ci_hdrc_imx_notify_event()
343 					   ci->gadget.connected);  in ci_hdrc_imx_notify_event()
357 	pm_runtime_resume(&imx_data->ci_pdev->dev);  in ci_wakeup_irq_handler()
366 	regulator_disable(data->hsic_pad_regulator);  in ci_hdrc_imx_disable_regulator()
373 		.name		= dev_name(&pdev->dev),  in ci_hdrc_imx_probe()
380 	struct device_node *np = pdev->dev.of_node;  in ci_hdrc_imx_probe()
381 	struct device *dev = &pdev->dev;  in ci_hdrc_imx_probe()
383 	imx_platform_flag = of_device_get_match_data(&pdev->dev);  in ci_hdrc_imx_probe()
385 	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);  in ci_hdrc_imx_probe()
387 		return -ENOMEM;  in ci_hdrc_imx_probe()
389 	data->plat_data = imx_platform_flag;  in ci_hdrc_imx_probe()
390 	pdata.flags |= imx_platform_flag->flags;  in ci_hdrc_imx_probe()
392 	data->usbmisc_data = usbmisc_get_init_data(dev);  in ci_hdrc_imx_probe()
393 	if (IS_ERR(data->usbmisc_data))  in ci_hdrc_imx_probe()
394 		return PTR_ERR(data->usbmisc_data);  in ci_hdrc_imx_probe()
396 	if ((of_usb_get_phy_mode(dev->of_node) == USBPHY_INTERFACE_MODE_HSIC)  in ci_hdrc_imx_probe()
397 		&& data->usbmisc_data) {  in ci_hdrc_imx_probe()
399 		data->usbmisc_data->hsic = 1;  in ci_hdrc_imx_probe()
400 		data->pinctrl = devm_pinctrl_get(dev);  in ci_hdrc_imx_probe()
401 		if (PTR_ERR(data->pinctrl) == -ENODEV)  in ci_hdrc_imx_probe()
402 			data->pinctrl = NULL;  in ci_hdrc_imx_probe()
403 		else if (IS_ERR(data->pinctrl)) {  in ci_hdrc_imx_probe()
404 			ret = dev_err_probe(dev, PTR_ERR(data->pinctrl),  in ci_hdrc_imx_probe()
409 		data->hsic_pad_regulator =  in ci_hdrc_imx_probe()
411 		if (PTR_ERR(data->hsic_pad_regulator) == -ENODEV) {  in ci_hdrc_imx_probe()
413 			data->hsic_pad_regulator = NULL;  in ci_hdrc_imx_probe()
414 		} else if (IS_ERR(data->hsic_pad_regulator)) {  in ci_hdrc_imx_probe()
415 			ret = dev_err_probe(dev, PTR_ERR(data->hsic_pad_regulator),  in ci_hdrc_imx_probe()
420 		if (data->hsic_pad_regulator) {  in ci_hdrc_imx_probe()
421 			ret = regulator_enable(data->hsic_pad_regulator);  in ci_hdrc_imx_probe()
438 	if (data->pinctrl) {  in ci_hdrc_imx_probe()
441 		pinctrl_hsic_idle = pinctrl_lookup_state(data->pinctrl, "idle");  in ci_hdrc_imx_probe()
450 		ret = pinctrl_select_state(data->pinctrl, pinctrl_hsic_idle);  in ci_hdrc_imx_probe()
456 		data->pinctrl_hsic_active = pinctrl_lookup_state(data->pinctrl,  in ci_hdrc_imx_probe()
458 		if (IS_ERR(data->pinctrl_hsic_active)) {  in ci_hdrc_imx_probe()
461 					PTR_ERR(data->pinctrl_hsic_active));  in ci_hdrc_imx_probe()
462 			ret = PTR_ERR(data->pinctrl_hsic_active);  in ci_hdrc_imx_probe()
468 		cpu_latency_qos_add_request(&data->pm_qos_req, 0);  in ci_hdrc_imx_probe()
478 	ret = clk_prepare_enable(data->clk_wakeup);  in ci_hdrc_imx_probe()
482 	data->phy = devm_usb_get_phy_by_phandle(dev, "fsl,usbphy", 0);  in ci_hdrc_imx_probe()
483 	if (IS_ERR(data->phy)) {  in ci_hdrc_imx_probe()
484 		ret = PTR_ERR(data->phy);  in ci_hdrc_imx_probe()
485 		if (ret != -ENODEV) {  in ci_hdrc_imx_probe()
489 		data->phy = devm_usb_get_phy_by_phandle(dev, "phys", 0);  in ci_hdrc_imx_probe()
490 		if (IS_ERR(data->phy)) {  in ci_hdrc_imx_probe()
491 			ret = PTR_ERR(data->phy);  in ci_hdrc_imx_probe()
492 			if (ret == -ENODEV) {  in ci_hdrc_imx_probe()
493 				data->phy = NULL;  in ci_hdrc_imx_probe()
501 	pdata.usb_phy = data->phy;  in ci_hdrc_imx_probe()
502 	if (data->usbmisc_data)  in ci_hdrc_imx_probe()
503 		data->usbmisc_data->usb_phy = data->phy;  in ci_hdrc_imx_probe()
505 	if ((of_device_is_compatible(np, "fsl,imx53-usb") ||  in ci_hdrc_imx_probe()
506 	     of_device_is_compatible(np, "fsl,imx51-usb")) && pdata.usb_phy &&  in ci_hdrc_imx_probe()
509 		data->override_phy_control = true;  in ci_hdrc_imx_probe()
518 		data->supports_runtime_pm = true;  in ci_hdrc_imx_probe()
520 	data->wakeup_irq = platform_get_irq_optional(pdev, 1);  in ci_hdrc_imx_probe()
521 	if (data->wakeup_irq > 0) {  in ci_hdrc_imx_probe()
522 		ret = devm_request_threaded_irq(dev, data->wakeup_irq,  in ci_hdrc_imx_probe()
530 	ret = imx_usbmisc_init(data->usbmisc_data);  in ci_hdrc_imx_probe()
536 	data->ci_pdev = ci_hdrc_add_device(dev,  in ci_hdrc_imx_probe()
537 				pdev->resource, pdev->num_resources,  in ci_hdrc_imx_probe()
539 	if (IS_ERR(data->ci_pdev)) {  in ci_hdrc_imx_probe()
540 		ret = PTR_ERR(data->ci_pdev);  in ci_hdrc_imx_probe()
545 	if (data->usbmisc_data) {  in ci_hdrc_imx_probe()
547 		    of_property_read_bool(np, "usb-role-switch"))  in ci_hdrc_imx_probe()
548 			data->usbmisc_data->ext_id = 1;  in ci_hdrc_imx_probe()
551 		    of_property_read_bool(np, "usb-role-switch"))  in ci_hdrc_imx_probe()
552 			data->usbmisc_data->ext_vbus = 1;  in ci_hdrc_imx_probe()
555 		data->usbmisc_data->available_role =  in ci_hdrc_imx_probe()
556 			ci_hdrc_query_available_role(data->ci_pdev);  in ci_hdrc_imx_probe()
559 	ret = imx_usbmisc_init_post(data->usbmisc_data);  in ci_hdrc_imx_probe()
565 	if (data->supports_runtime_pm) {  in ci_hdrc_imx_probe()
575 	ci_hdrc_remove_device(data->ci_pdev);  in ci_hdrc_imx_probe()
577 	if (data->override_phy_control)  in ci_hdrc_imx_probe()
578 		usb_phy_shutdown(data->phy);  in ci_hdrc_imx_probe()
580 	clk_disable_unprepare(data->clk_wakeup);  in ci_hdrc_imx_probe()
585 		cpu_latency_qos_remove_request(&data->pm_qos_req);  in ci_hdrc_imx_probe()
586 	data->ci_pdev = NULL;  in ci_hdrc_imx_probe()
588 	if (data->usbmisc_data)  in ci_hdrc_imx_probe()
589 		put_device(data->usbmisc_data->dev);  in ci_hdrc_imx_probe()
597 	if (data->supports_runtime_pm) {  in ci_hdrc_imx_remove()
598 		pm_runtime_get_sync(&pdev->dev);  in ci_hdrc_imx_remove()
599 		pm_runtime_disable(&pdev->dev);  in ci_hdrc_imx_remove()
600 		pm_runtime_put_noidle(&pdev->dev);  in ci_hdrc_imx_remove()
602 	if (data->ci_pdev)  in ci_hdrc_imx_remove()
603 		ci_hdrc_remove_device(data->ci_pdev);  in ci_hdrc_imx_remove()
604 	if (data->override_phy_control)  in ci_hdrc_imx_remove()
605 		usb_phy_shutdown(data->phy);  in ci_hdrc_imx_remove()
606 	if (data->ci_pdev) {  in ci_hdrc_imx_remove()
607 		imx_disable_unprepare_clks(&pdev->dev);  in ci_hdrc_imx_remove()
608 		clk_disable_unprepare(data->clk_wakeup);  in ci_hdrc_imx_remove()
609 		if (data->plat_data->flags & CI_HDRC_PMQOS)  in ci_hdrc_imx_remove()
610 			cpu_latency_qos_remove_request(&data->pm_qos_req);  in ci_hdrc_imx_remove()
612 	if (data->usbmisc_data)  in ci_hdrc_imx_remove()
613 		put_device(data->usbmisc_data->dev);  in ci_hdrc_imx_remove()
629 	ret = imx_usbmisc_suspend(data->usbmisc_data,  in imx_controller_suspend()
639 	if (data->wakeup_irq > 0)  in imx_controller_suspend()
640 		enable_irq(data->wakeup_irq);  in imx_controller_suspend()
642 	if (data->plat_data->flags & CI_HDRC_PMQOS)  in imx_controller_suspend()
643 		cpu_latency_qos_remove_request(&data->pm_qos_req);  in imx_controller_suspend()
645 	data->in_lpm = true;  in imx_controller_suspend()
658 	if (!data->in_lpm) {  in imx_controller_resume()
663 	if (data->plat_data->flags & CI_HDRC_PMQOS)  in imx_controller_resume()
664 		cpu_latency_qos_add_request(&data->pm_qos_req, 0);  in imx_controller_resume()
666 	if (data->wakeup_irq > 0 &&  in imx_controller_resume()
667 	    !irqd_irq_disabled(irq_get_irq_data(data->wakeup_irq)))  in imx_controller_resume()
668 		disable_irq_nosync(data->wakeup_irq);  in imx_controller_resume()
674 	data->in_lpm = false;  in imx_controller_resume()
676 	ret = imx_usbmisc_resume(data->usbmisc_data,  in imx_controller_resume()
696 	if (data->in_lpm)  in ci_hdrc_imx_suspend()
706 	if (data->wakeup_irq > 0 && device_may_wakeup(dev))  in ci_hdrc_imx_suspend()
707 		enable_irq_wake(data->wakeup_irq);  in ci_hdrc_imx_suspend()
717 	if (data->wakeup_irq > 0 && device_may_wakeup(dev))  in ci_hdrc_imx_resume()
718 		disable_irq_wake(data->wakeup_irq);  in ci_hdrc_imx_resume()
722 	if (!ret && data->supports_runtime_pm) {  in ci_hdrc_imx_resume()
735 	if (data->in_lpm) {  in ci_hdrc_imx_runtime_suspend()
765 MODULE_ALIAS("platform:imx-usb");
767 MODULE_DESCRIPTION("CI HDRC i.MX USB binding");