drivers/rng/rng-uclass.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (c) 2019, Linaro Limited
   4  */
   5
   6 #include <common.h>
   7 #include <dm.h>
   8 #include <rng.h>
   9
  10 int dm_rng_read(struct udevice *dev, void *buffer, size_t size)
  11 {
  12         const struct dm_rng_ops *ops = device_get_ops(dev);
  13
  14         if (!ops->read)
  15                 return -ENOSYS;
  16
  17         return ops->read(dev, buffer, size);
  18 }
  19
  20 UCLASS_DRIVER(rng) = {
  21         .name = "rng",
  22         .id = UCLASS_RNG,
  23 };