usb/phy/phy-keystone.c

1 // SPDX-License-Identifier: GPL-2.0+
3  * phy-keystone - USB PHY, talking to dwc3 controller in Keystone.
5  * Copyright (C) 2013 Texas Instruments Incorporated - https://www.ti.com
7  * Author: WingMan Kwok <w-kwok2@ti.com>
16 #include "phy-generic.h"
46 	struct keystone_usbphy *k_phy = dev_get_drvdata(phy->dev);  in keystone_usbphy_init()
49 	val  = keystone_usbphy_readl(k_phy->phy_ctrl, USB_PHY_CTL_CLOCK);  in keystone_usbphy_init()
50 	keystone_usbphy_writel(k_phy->phy_ctrl, USB_PHY_CTL_CLOCK,  in keystone_usbphy_init()
57 	struct keystone_usbphy *k_phy = dev_get_drvdata(phy->dev);  in keystone_usbphy_shutdown()
60 	val  = keystone_usbphy_readl(k_phy->phy_ctrl, USB_PHY_CTL_CLOCK);  in keystone_usbphy_shutdown()
61 	keystone_usbphy_writel(k_phy->phy_ctrl, USB_PHY_CTL_CLOCK,  in keystone_usbphy_shutdown()
67 	struct device		*dev = &pdev->dev;  in keystone_usbphy_probe()
73 		return -ENOMEM;  in keystone_usbphy_probe()
75 	k_phy->phy_ctrl = devm_platform_ioremap_resource(pdev, 0);  in keystone_usbphy_probe()
76 	if (IS_ERR(k_phy->phy_ctrl))  in keystone_usbphy_probe()
77 		return PTR_ERR(k_phy->phy_ctrl);  in keystone_usbphy_probe()
79 	ret = usb_phy_gen_create_phy(dev, &k_phy->usb_phy_gen);  in keystone_usbphy_probe()
83 	k_phy->usb_phy_gen.phy.init = keystone_usbphy_init;  in keystone_usbphy_probe()
84 	k_phy->usb_phy_gen.phy.shutdown = keystone_usbphy_shutdown;  in keystone_usbphy_probe()
88 	return usb_add_phy_dev(&k_phy->usb_phy_gen.phy);  in keystone_usbphy_probe()
95 	usb_remove_phy(&k_phy->usb_phy_gen.phy);  in keystone_usbphy_remove()
99 	{ .compatible = "ti,keystone-usbphy" },
108 		.name   = "keystone-usbphy",
115 MODULE_ALIAS("platform:keystone-usbphy");
117 MODULE_DESCRIPTION("Keystone USB phy driver");