hwrng: exynos - Add support for Exynos random number generator

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This patch supports Exynos SOC's PRNG driver. Exynos's PRNG has 5 seeds and
5 random number outputs. Module is excuted under runtime power management control,
so it activates only while it's in use. Otherwise it will be suspended generally.
It was tested on PQ board by rngtest program.

Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

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Jonghwa Lee 2012-06-29 09:43:26 +09:00 • committed by Herbert Xu

parent bf084d8f6e

commit b329669ea0

3 changed files with 195 additions and 0 deletions

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12

drivers/char/hw_random/Kconfig

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1

drivers/char/hw_random/Makefile

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182

drivers/char/hw_random/exynos-rng.c

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