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