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hw_random: ixp4xx: Add OF support

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This makes the hardware random number generator found in
the IXP46x SoCs probe from the device tree.

Cc: Deepak Saxena <dsaxena@plexity.net>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2021-05-11 15:04:21 +02:00
parent cca061b04c
commit b80e60eb8e
1 changed files with 10 additions and 0 deletions
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10
drivers/char/hw_random/ixp4xx-rng.c
View file

@ -19,6 +19,7 @@
#include <linux/init.h>
#include <linux/bitops.h>
#include <linux/hw_random.h>
#include <linux/of.h>
#include <linux/soc/ixp4xx/cpu.h>
#include <asm/io.h>
@ -55,9 +56,18 @@ static int ixp4xx_rng_probe(struct platform_device *pdev)
return devm_hwrng_register(dev, &ixp4xx_rng_ops);
}
static const struct of_device_id ixp4xx_rng_of_match[] = {
{
.compatible = "intel,ixp46x-rng",
},
{},
};
MODULE_DEVICE_TABLE(of, ixp4xx_rng_of_match);
static struct platform_driver ixp4xx_rng_driver = {
.driver = {
.name = "ixp4xx-hwrandom",
.of_match_table = ixp4xx_rng_of_match,
},
.probe = ixp4xx_rng_probe,
};