1 // SPDX-License-Identifier: GPL-2.0
8 #include <linux/ulpi/interface.h>
23 	while (usec--) {  in ci_ulpi_wait()
25 			return 0;  in ci_ulpi_wait()
30 	return -ETIMEDOUT;  in ci_ulpi_wait()
38 	hw_write(ci, OP_ULPI_VIEWPORT, 0xffffffff, ULPI_WRITE | ULPI_WAKEUP);  in ci_ulpi_read()
43 	hw_write(ci, OP_ULPI_VIEWPORT, 0xffffffff, ULPI_RUN | ULPI_ADDR(addr));  in ci_ulpi_read()
56 	hw_write(ci, OP_ULPI_VIEWPORT, 0xffffffff, ULPI_WRITE | ULPI_WAKEUP);  in ci_ulpi_write()
61 	hw_write(ci, OP_ULPI_VIEWPORT, 0xffffffff,  in ci_ulpi_write()
68 	if (ci->platdata->phy_mode != USBPHY_INTERFACE_MODE_ULPI)  in ci_ulpi_init()
69 		return 0;  in ci_ulpi_init()
72 	 * Set PORTSC correctly so we can read/write ULPI registers for  in ci_ulpi_init()
77 	ci->ulpi_ops.read = ci_ulpi_read;  in ci_ulpi_init()
78 	ci->ulpi_ops.write = ci_ulpi_write;  in ci_ulpi_init()
79 	ci->ulpi = ulpi_register_interface(ci->dev, &ci->ulpi_ops);  in ci_ulpi_init()
80 	if (IS_ERR(ci->ulpi))  in ci_ulpi_init()
81 		dev_err(ci->dev, "failed to register ULPI interface");  in ci_ulpi_init()
83 	return PTR_ERR_OR_ZERO(ci->ulpi);  in ci_ulpi_init()
88 	if (ci->ulpi) {  in ci_ulpi_exit()
89 		ulpi_unregister_interface(ci->ulpi);  in ci_ulpi_exit()
90 		ci->ulpi = NULL;  in ci_ulpi_exit()
98 	if (ci->platdata->phy_mode != USBPHY_INTERFACE_MODE_ULPI)  in ci_ulpi_resume()
99 		return 0;  in ci_ulpi_resume()
101 	while (cnt-- > 0) {  in ci_ulpi_resume()
103 			return 0;  in ci_ulpi_resume()
107 	return -ETIMEDOUT;  in ci_ulpi_resume()