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https://github.com/brain-hackers/u-boot-brain
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65e25bea59
In the spirit of using the same base name for all of these related macros, rename this to have the operation at the end. This is not widely used so the impact is fairly small. Signed-off-by: Simon Glass <sjg@chromium.org>
47 lines
960 B
C
47 lines
960 B
C
// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
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/*
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* STMicroelectronics STUSB Type-C controller driver
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* based on Linux drivers/usb/typec/stusb160x.c
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*
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* Copyright (C) 2020, STMicroelectronics - All Rights Reserved
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*/
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#include <common.h>
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#include <dm.h>
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#include <i2c.h>
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/* REGISTER */
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#define STUSB160X_CC_CONNECTION_STATUS 0x0E
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/* STUSB160X_CC_CONNECTION_STATUS bitfields */
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#define STUSB160X_CC_ATTACH BIT(0)
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int stusb160x_cable_connected(void)
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{
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struct udevice *dev;
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int ret;
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ret = uclass_get_device_by_driver(UCLASS_I2C_GENERIC,
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DM_DRIVER_GET(stusb160x),
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&dev);
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if (ret < 0)
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return ret;
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ret = dm_i2c_reg_read(dev, STUSB160X_CC_CONNECTION_STATUS);
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if (ret < 0)
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return 0;
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return ret & STUSB160X_CC_ATTACH;
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}
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static const struct udevice_id stusb160x_ids[] = {
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{ .compatible = "st,stusb1600" },
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{}
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};
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U_BOOT_DRIVER(stusb160x) = {
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.name = "stusb160x",
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.id = UCLASS_I2C_GENERIC,
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.of_match = stusb160x_ids,
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};
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