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 12int 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 22UCLASS_DRIVER(rng) = { 23 .name = "rng", 24 .id = UCLASS_RNG, 25}; 26