u-boot-brain/drivers/rng/rng-uclass.c
Sughosh Ganu a248768400 dm: rng: Add random number generator(rng) uclass
Add a uclass for reading a random number seed from a random number
generator device.

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-01-07 18:08:21 +01:00

24 lines
395 B
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2019, Linaro Limited
*/
#include <common.h>
#include <dm.h>
#include <rng.h>
int dm_rng_read(struct udevice *dev, void *buffer, size_t size)
{
const struct dm_rng_ops *ops = device_get_ops(dev);
if (!ops->read)
return -ENOSYS;
return ops->read(dev, buffer, size);
}
UCLASS_DRIVER(rng) = {
.name = "rng",
.id = UCLASS_RNG,
};