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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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