LXR uboot/drivers/power/pmic/rn5t567.c

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Copyright (C) 2016 Toradex AG
   4 * Stefan Agner <stefan.agner@toradex.com>
   5 */
   6
   7#include <common.h>
   8#include <dm.h>
   9#include <errno.h>
  10#include <fdtdec.h>
  11#include <log.h>
  12#include <linux/libfdt.h>
  13#include <power/rn5t567_pmic.h>
  14#include <power/pmic.h>
  15
  16static int rn5t567_reg_count(struct udevice *dev)
  17{
  18        return RN5T567_NUM_OF_REGS;
  19}
  20
  21static int rn5t567_write(struct udevice *dev, uint reg, const uint8_t *buff,
  22                          int len)
  23{
  24        int ret;
  25
  26        ret = dm_i2c_write(dev, reg, buff, len);
  27        if (ret) {
  28                debug("write error to device: %p register: %#x!\n", dev, reg);
  29                return ret;
  30        }
  31
  32        return 0;
  33}
  34
  35static int rn5t567_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
  36{
  37        int ret;
  38
  39        ret = dm_i2c_read(dev, reg, buff, len);
  40        if (ret) {
  41                debug("read error from device: %p register: %#x!\n", dev, reg);
  42                return ret;
  43        }
  44
  45        return 0;
  46}
  47
  48static struct dm_pmic_ops rn5t567_ops = {
  49        .reg_count = rn5t567_reg_count,
  50        .read = rn5t567_read,
  51        .write = rn5t567_write,
  52};
  53
  54static const struct udevice_id rn5t567_ids[] = {
  55        { .compatible = "ricoh,rn5t567" },
  56        { }
  57};
  58
  59U_BOOT_DRIVER(pmic_rn5t567) = {
  60        .name = "rn5t567 pmic",
  61        .id = UCLASS_PMIC,
  62        .of_match = rn5t567_ids,
  63        .ops = &rn5t567_ops,
  64};
  65