1 // SPDX-License-Identifier: GPL-1.0+
33  *			+-------+	+-----------+
34  *			| pipe0 |------>| fifo pio  |
35  * +------------+	+-------+	+-----------+
36  * | mod_gadget |=====> | pipe1 |--+
37  * +------------+	+-------+  |	+-----------+
38  *			| pipe2 |  |  +-| fifo dma0 |
39  * +------------+	+-------+  |  |	+-----------+
40  * | mod_host   |	| pipe3 |<-|--+
41  * +------------+	+-------+  |	+-----------+
42  *			| ....  |  +--->| fifo dma1 |
43  *			| ....  |	+-----------+
54 	(!(priv) ? -ENODEV :			\
55 	 !((priv)->pfunc->func) ? 0 :		\
56 	 (priv)->pfunc->func(args))
63 	return ioread16(priv->base + reg);  in usbhs_read()
68 	iowrite16(data, priv->base + reg);  in usbhs_write()
83 	return dev_get_drvdata(&pdev->dev);  in usbhs_pdev_to_priv()
92  *		syscfg functions
96 	usbhs_bset(priv, SYSCFG, SCKE, enable ? SCKE : 0);  in usbhs_sys_clock_ctrl()
107 	 * - select Host mode  in usbhs_sys_host_ctrl()
108 	 * - D+ Line/D- Line Pull-down  in usbhs_sys_host_ctrl()
110 	usbhs_bset(priv, SYSCFG, mask, enable ? val : 0);  in usbhs_sys_host_ctrl()
127 	 * - select Function mode  in usbhs_sys_function_ctrl()
128 	 * - D+ Line Pull-up is disabled  in usbhs_sys_function_ctrl()
129 	 *      When D+ Line Pull-up is enabled,  in usbhs_sys_function_ctrl()
132 	usbhs_bset(priv, SYSCFG, mask, enable ? val : 0);  in usbhs_sys_function_ctrl()
137 	usbhs_bset(priv, SYSCFG, DPRPU, enable ? DPRPU : 0);  in usbhs_sys_function_pullup()
161 	req->bRequest		= (val >> 8) & 0xFF;  in usbhs_usbreq_get_val()
162 	req->bRequestType	= (val >> 0) & 0xFF;  in usbhs_usbreq_get_val()
164 	req->wValue	= cpu_to_le16(usbhs_read(priv, USBVAL));  in usbhs_usbreq_get_val()
165 	req->wIndex	= cpu_to_le16(usbhs_read(priv, USBINDX));  in usbhs_usbreq_get_val()
166 	req->wLength	= cpu_to_le16(usbhs_read(priv, USBLENG));  in usbhs_usbreq_get_val()
171 	usbhs_write(priv, USBREQ,  (req->bRequest << 8) | req->bRequestType);  in usbhs_usbreq_set_val()
172 	usbhs_write(priv, USBVAL,  le16_to_cpu(req->wValue));  in usbhs_usbreq_set_val()
173 	usbhs_write(priv, USBINDX, le16_to_cpu(req->wIndex));  in usbhs_usbreq_set_val()
174 	usbhs_write(priv, USBLENG, le16_to_cpu(req->wLength));  in usbhs_usbreq_set_val()
241 		return -EIO;  in usbhs_set_device_config()
246 		return -EIO;  in usbhs_set_device_config()
261 		return -EIO;  in usbhs_set_device_config()
295 	return priv->dparam.multi_clks;  in usbhsc_is_multi_clks()
304 	priv->clks[0] = of_clk_get(dev_of_node(dev), 0);  in usbhsc_clk_get()
305 	if (IS_ERR(priv->clks[0]))  in usbhsc_clk_get()
306 		return PTR_ERR(priv->clks[0]);  in usbhsc_clk_get()
310 	 * value if it's -ENOENT or not.  in usbhsc_clk_get()
312 	priv->clks[1] = of_clk_get(dev_of_node(dev), 1);  in usbhsc_clk_get()
313 	if (PTR_ERR(priv->clks[1]) == -ENOENT)  in usbhsc_clk_get()
314 		priv->clks[1] = NULL;  in usbhsc_clk_get()
315 	else if (IS_ERR(priv->clks[1]))  in usbhsc_clk_get()
316 		return PTR_ERR(priv->clks[1]);  in usbhsc_clk_get()
328 	for (i = 0; i < ARRAY_SIZE(priv->clks); i++)  in usbhsc_clk_put()
329 		clk_put(priv->clks[i]);  in usbhsc_clk_put()
339 	for (i = 0; i < ARRAY_SIZE(priv->clks); i++) {  in usbhsc_clk_prepare_enable()
340 		ret = clk_prepare_enable(priv->clks[i]);  in usbhsc_clk_prepare_enable()
342 			while (--i >= 0)  in usbhsc_clk_prepare_enable()
343 				clk_disable_unprepare(priv->clks[i]);  in usbhsc_clk_prepare_enable()
358 	for (i = 0; i < ARRAY_SIZE(priv->clks); i++)  in usbhsc_clk_disable_unprepare()
359 		clk_disable_unprepare(priv->clks[i]);  in usbhsc_clk_disable_unprepare()
366 /* commonly used on old SH-Mobile and RZ/G2L family SoCs */
380 /* commonly used on newer SH-Mobile and R-Car SoCs */
417 		usbhs_platform_call(priv, power_ctrl, pdev, priv->base, enable);  in usbhsc_power_ctrl()
426 		usbhs_platform_call(priv, power_ctrl, pdev, priv->base, enable);  in usbhsc_power_ctrl()
459 		if (priv->edev) {  in usbhsc_hotplug()
460 			cable = extcon_get_state(priv->edev, EXTCON_USB_HOST);  in usbhsc_hotplug()
463 				dev_info(&pdev->dev,  in usbhsc_hotplug()
473 		dev_dbg(&pdev->dev, "%s enable\n", __func__);  in usbhsc_hotplug()
487 		dev_dbg(&pdev->dev, "%s disable\n", __func__);  in usbhsc_hotplug()
499 		usbhs_mod_change(priv, -1);  in usbhsc_hotplug()
527 	schedule_delayed_work(&priv->notify_hotplug_work,  in usbhsc_schedule_notify_hotplug()
537 		.compatible = "renesas,usbhs-r8a774c0",
541 		.compatible = "renesas,usbhs-r8a7790",
545 		.compatible = "renesas,usbhs-r8a7791",
549 		.compatible = "renesas,usbhs-r8a7794",
553 		.compatible = "renesas,usbhs-r8a7795",
557 		.compatible = "renesas,usbhs-r8a7796",
561 		.compatible = "renesas,usbhs-r8a77990",
565 		.compatible = "renesas,usbhs-r8a77995",
569 		.compatible = "renesas,usbhs-r9a07g043",
573 		.compatible = "renesas,usbhs-r9a07g044",
577 		.compatible = "renesas,usbhs-r9a07g054",
581 		.compatible = "renesas,rcar-gen2-usbhs",
585 		.compatible = "renesas,rcar-gen3-usbhs",
589 		.compatible = "renesas,rza1-usbhs",
593 		.compatible = "renesas,rza2-usbhs",
597 		.compatible = "renesas,rzg2l-usbhs",
608 	struct device *dev = &pdev->dev;  in usbhs_probe()
612 	int irq;  in usbhs_probe()  local
618 			return dev_err_probe(dev, -EINVAL, "no platform info\n");  in usbhs_probe()
622 	irq = platform_get_irq(pdev, 0);  in usbhs_probe()
623 	if (irq < 0)  in usbhs_probe()
624 		return irq;  in usbhs_probe()
629 		return -ENOMEM;  in usbhs_probe()
631 	priv->base = devm_platform_ioremap_resource(pdev, 0);  in usbhs_probe()
632 	if (IS_ERR(priv->base))  in usbhs_probe()
633 		return PTR_ERR(priv->base);  in usbhs_probe()
636 		priv->edev = extcon_get_edev_by_phandle(dev, 0);  in usbhs_probe()
637 		if (IS_ERR(priv->edev))  in usbhs_probe()
638 			return PTR_ERR(priv->edev);  in usbhs_probe()
641 	priv->rsts = devm_reset_control_array_get_optional_shared(dev);  in usbhs_probe()
642 	if (IS_ERR(priv->rsts))  in usbhs_probe()
643 		return PTR_ERR(priv->rsts);  in usbhs_probe()
649 	priv->dparam = info->driver_param;  in usbhs_probe()
651 	if (!info->platform_callback.get_id) {  in usbhs_probe()
653 		return -EINVAL;  in usbhs_probe()
655 	priv->pfunc = &info->platform_callback;  in usbhs_probe()
659 		priv->dparam.pipe_configs = usbhsc_new_pipe;  in usbhs_probe()
660 		priv->dparam.pipe_size = ARRAY_SIZE(usbhsc_new_pipe);  in usbhs_probe()
661 	} else if (!priv->dparam.pipe_configs) {  in usbhs_probe()
662 		priv->dparam.pipe_configs = usbhsc_default_pipe;  in usbhs_probe()
663 		priv->dparam.pipe_size = ARRAY_SIZE(usbhsc_default_pipe);  in usbhs_probe()
665 	if (!priv->dparam.pio_dma_border)  in usbhs_probe()
666 		priv->dparam.pio_dma_border = 64; /* 64byte */  in usbhs_probe()
668 		priv->dparam.buswait_bwait = tmp;  in usbhs_probe()
675 	if (priv->pfunc->get_vbus)  in usbhs_probe()
681 	priv->irq = irq;  in usbhs_probe()
682 	priv->pdev	= pdev;  in usbhs_probe()
683 	INIT_DELAYED_WORK(&priv->notify_hotplug_work, usbhsc_notify_hotplug);  in usbhs_probe()
702 	ret = reset_control_deassert(priv->rsts);  in usbhs_probe()
721 			ret = -ENOTSUPP;  in usbhs_probe()
763 	reset_control_assert(priv->rsts);  in usbhs_probe()
780 	dev_dbg(&pdev->dev, "usb remove\n");  in usbhs_remove()
786 	pm_runtime_disable(&pdev->dev);  in usbhs_remove()
790 	reset_control_assert(priv->rsts);  in usbhs_remove()
803 		usbhs_mod_change(priv, -1);  in usbhsc_suspend()