drivers/power/pmic/s2mps11.c

   1 /*
   2  *  Copyright (C) 2015 Samsung Electronics
   3  *  Przemyslaw Marczak  <p.marczak@samsung.com>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <common.h>
   9 #include <fdtdec.h>
  10 #include <errno.h>
  11 #include <dm.h>
  12 #include <i2c.h>
  13 #include <power/pmic.h>
  14 #include <power/s2mps11.h>
  15
  16 DECLARE_GLOBAL_DATA_PTR;
  17
  18 static int s2mps11_reg_count(struct udevice *dev)
  19 {
  20         return S2MPS11_REG_COUNT;
  21 }
  22
  23 static int s2mps11_write(struct udevice *dev, uint reg, const uint8_t *buff,
  24                          int len)
  25 {
  26         int ret;
  27
  28         ret = dm_i2c_write(dev, reg, buff, len);
  29         if (ret)
  30                 pr_err("write error to device: %p register: %#x!", dev, reg);
  31
  32         return ret;
  33 }
  34
  35 static int s2mps11_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                 pr_err("read error from device: %p register: %#x!", dev, reg);
  42
  43         return ret;
  44 }
  45
  46 static struct dm_pmic_ops s2mps11_ops = {
  47         .reg_count = s2mps11_reg_count,
  48         .read = s2mps11_read,
  49         .write = s2mps11_write,
  50 };
  51
  52 static const struct udevice_id s2mps11_ids[] = {
  53         { .compatible = "samsung,s2mps11-pmic" },
  54         { }
  55 };
  56
  57 U_BOOT_DRIVER(pmic_s2mps11) = {
  58         .name = "s2mps11_pmic",
  59         .id = UCLASS_PMIC,
  60         .of_match = s2mps11_ids,
  61         .ops = &s2mps11_ops,
  62 };