u-boot/board/gdsys/a38x/dt_helpers.c

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/*
* (C) Copyright 2016
* Mario Six, Guntermann & Drunck GmbH, mario.six@gdsys.cc
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <i2c.h>
#include <fdt_support.h>
#include <asm-generic/gpio.h>
#include <dm.h>
int fdt_disable_by_ofname(void *rw_fdt_blob, char *ofname)
{
int offset = fdt_path_offset(rw_fdt_blob, ofname);
return fdt_status_disabled(rw_fdt_blob, offset);
}
bool dm_i2c_simple_probe(struct udevice *bus, uint chip_addr)
{
struct udevice *dev;
return !dm_i2c_probe(bus, chip_addr, DM_I2C_CHIP_RD_ADDRESS |
DM_I2C_CHIP_WR_ADDRESS, &dev);
}
int request_gpio_by_name(struct gpio_desc *gpio, const char *gpio_dev_name,
uint offset, char *gpio_name)
{
struct udevice *gpio_dev = NULL;
if (uclass_get_device_by_name(UCLASS_GPIO, gpio_dev_name, &gpio_dev))
return 1;
gpio->dev = gpio_dev;
gpio->offset = offset;
gpio->flags = 0;
return dm_gpio_request(gpio, gpio_name);
}