LXR uboot/board/gdsys/a38x/dt

   1/*
   2 * (C) Copyright 2016
   3 * Mario Six, Guntermann & Drunck GmbH, mario.six@gdsys.cc
   4 *
   5 * SPDX-License-Identifier:    GPL-2.0+
   6 */
   7
   8#include <common.h>
   9#include <i2c.h>
  10#include <fdt_support.h>
  11#include <asm-generic/gpio.h>
  12#include <dm.h>
  13
  14int fdt_disable_by_ofname(void *rw_fdt_blob, char *ofname)
  15{
  16        int offset = fdt_path_offset(rw_fdt_blob, ofname);
  17
  18        return fdt_status_disabled(rw_fdt_blob, offset);
  19}
  20
  21bool dm_i2c_simple_probe(struct udevice *bus, uint chip_addr)
  22{
  23        struct udevice *dev;
  24
  25        return !dm_i2c_probe(bus, chip_addr, DM_I2C_CHIP_RD_ADDRESS |
  26                             DM_I2C_CHIP_WR_ADDRESS, &dev);
  27}
  28
  29int request_gpio_by_name(struct gpio_desc *gpio, const char *gpio_dev_name,
  30                         uint offset, char *gpio_name)
  31{
  32        struct udevice *gpio_dev = NULL;
  33
  34        if (uclass_get_device_by_name(UCLASS_GPIO, gpio_dev_name, &gpio_dev))
  35                return 1;
  36
  37        gpio->dev = gpio_dev;
  38        gpio->offset = offset;
  39        gpio->flags = 0;
  40
  41        return dm_gpio_request(gpio, gpio_name);
  42}
  43
  44