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- // SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
- /*
- * STMicroelectronics STUSB Type-C controller driver
- * based on Linux drivers/usb/typec/stusb160x.c
- *
- * Copyright (C) 2020, STMicroelectronics - All Rights Reserved
- */
- #include <common.h>
- #include <dm.h>
- #include <i2c.h>
- /* REGISTER */
- #define STUSB160X_CC_CONNECTION_STATUS 0x0E
- /* STUSB160X_CC_CONNECTION_STATUS bitfields */
- #define STUSB160X_CC_ATTACH BIT(0)
- int stusb160x_cable_connected(void)
- {
- struct udevice *dev;
- int ret;
- ret = uclass_get_device_by_driver(UCLASS_I2C_GENERIC,
- DM_DRIVER_GET(stusb160x),
- &dev);
- if (ret < 0)
- return ret;
- ret = dm_i2c_reg_read(dev, STUSB160X_CC_CONNECTION_STATUS);
- if (ret < 0)
- return 0;
- return ret & STUSB160X_CC_ATTACH;
- }
- static const struct udevice_id stusb160x_ids[] = {
- { .compatible = "st,stusb1600" },
- {}
- };
- U_BOOT_DRIVER(stusb160x) = {
- .name = "stusb160x",
- .id = UCLASS_I2C_GENERIC,
- .of_match = stusb160x_ids,
- };
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