1 // SPDX-License-Identifier: GPL-2.0
3  * dwc3-keystone.c - Keystone Specific Glue layer
5  * Copyright (C) 2010-2013 Texas Instruments Incorporated - http://www.ti.com
7  * Author: WingMan Kwok <w-kwok2@ti.com>
14 #include <linux/dma-mapping.h>
53 	val = kdwc3_readl(kdwc->usbss, USBSS_IRQENABLE_SET_0);  in kdwc3_enable_irqs()
55 	kdwc3_writel(kdwc->usbss, USBSS_IRQENABLE_SET_0, val);  in kdwc3_enable_irqs()
62 	val = kdwc3_readl(kdwc->usbss, USBSS_IRQENABLE_SET_0);  in kdwc3_disable_irqs()
64 	kdwc3_writel(kdwc->usbss, USBSS_IRQENABLE_SET_0, val);  in kdwc3_disable_irqs()
71 	kdwc3_writel(kdwc->usbss, USBSS_IRQENABLE_CLR_0, USBSS_IRQ_COREIRQ_CLR);  in dwc3_keystone_interrupt()
72 	kdwc3_writel(kdwc->usbss, USBSS_IRQSTATUS_0, USBSS_IRQ_EVENT_ST);  in dwc3_keystone_interrupt()
73 	kdwc3_writel(kdwc->usbss, USBSS_IRQENABLE_SET_0, USBSS_IRQ_COREIRQ_EN);  in dwc3_keystone_interrupt()
74 	kdwc3_writel(kdwc->usbss, USBSS_IRQ_EOI, USBSS_IRQ_EOI_LINE(0));  in dwc3_keystone_interrupt()
81 	struct device		*dev = &pdev->dev;  in kdwc3_probe()
82 	struct device_node	*node = pdev->dev.of_node;  in kdwc3_probe()
89 		return -ENOMEM;  in kdwc3_probe()
93 	kdwc->dev = dev;  in kdwc3_probe()
96 	kdwc->usbss = devm_ioremap_resource(dev, res);  in kdwc3_probe()
97 	if (IS_ERR(kdwc->usbss))  in kdwc3_probe()
98 		return PTR_ERR(kdwc->usbss);  in kdwc3_probe()
100 	pm_runtime_enable(kdwc->dev);  in kdwc3_probe()
102 	error = pm_runtime_get_sync(kdwc->dev);  in kdwc3_probe()
104 		dev_err(kdwc->dev, "pm_runtime_get_sync failed, error %d\n",  in kdwc3_probe()
111 		dev_err(&pdev->dev, "missing irq\n");  in kdwc3_probe()
119 		dev_err(dev, "failed to request IRQ #%d --> %d\n",  in kdwc3_probe()
128 		dev_err(&pdev->dev, "failed to create dwc3 core\n");  in kdwc3_probe()
137 	pm_runtime_put_sync(kdwc->dev);  in kdwc3_probe()
138 	pm_runtime_disable(kdwc->dev);  in kdwc3_probe()
157 	device_for_each_child(&pdev->dev, NULL, kdwc3_remove_core);  in kdwc3_remove()
158 	pm_runtime_put_sync(kdwc->dev);  in kdwc3_remove()
159 	pm_runtime_disable(kdwc->dev);  in kdwc3_remove()
167 	{ .compatible = "ti,keystone-dwc3", },
176 		.name	= "keystone-dwc3",
183 MODULE_ALIAS("platform:keystone-dwc3");
184 MODULE_AUTHOR("WingMan Kwok <w-kwok2@ti.com>");
186 MODULE_DESCRIPTION("DesignWare USB3 KEYSTONE Glue Layer");