drivers/spmi/spmi-uclass.c

   1 /*
   2  * SPMI bus uclass driver
   3  *
   4  * (C) Copyright 2015 Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
   5  *
   6  * SPDX-License-Identifier:     GPL-2.0+
   7  */
   8
   9 #include <common.h>
  10 #include <dm.h>
  11 #include <errno.h>
  12 #include <spmi/spmi.h>
  13 #include <linux/ctype.h>
  14
  15 DECLARE_GLOBAL_DATA_PTR;
  16
  17 int spmi_reg_read(struct udevice *dev, int usid, int pid, int reg)
  18 {
  19         const struct dm_spmi_ops *ops = dev_get_driver_ops(dev);
  20
  21         if (!ops || !ops->read)
  22                 return -ENOSYS;
  23
  24         return ops->read(dev, usid, pid, reg);
  25 }
  26
  27 int spmi_reg_write(struct udevice *dev, int usid, int pid, int reg,
  28                    uint8_t value)
  29 {
  30         const struct dm_spmi_ops *ops = dev_get_driver_ops(dev);
  31
  32         if (!ops || !ops->write)
  33                 return -ENOSYS;
  34
  35         return ops->write(dev, usid, pid, reg, value);
  36 }
  37
  38 UCLASS_DRIVER(spmi) = {
  39         .id             = UCLASS_SPMI,
  40         .name           = "spmi",
  41         .post_bind      = dm_scan_fdt_dev,
  42 };