drivers/rng/rng-uclass.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (c) 2019, Linaro Limited
   4  */
   5
   6 #define LOG_CATEGORY UCLASS_RNG
   7
   8 #include <common.h>
   9 #include <dm.h>
  10 #include <rng.h>
  11
  12 int dm_rng_read(struct udevice *dev, void *buffer, size_t size)
  13 {
  14         const struct dm_rng_ops *ops = device_get_ops(dev);
  15
  16         if (!ops->read)
  17                 return -ENOSYS;
  18
  19         return ops->read(dev, buffer, size);
  20 }
  21
  22 UCLASS_DRIVER(rng) = {
  23         .name = "rng",
  24         .id = UCLASS_RNG,
  25 };