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hw_random: timeriomem_rng: Allow setting RNG quality from platform data

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When a hw_random device's quality is non-zero, it will automatically be
used to fill the kernel's entropy pool.  Since timeriomem_rng is used by
many different devices, the quality needs to be provided by platform
data or device tree.

Signed-off-by: Rick Altherr <raltherr@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Rick Altherr 2017-05-22 14:12:24 -07:00 • committed by Herbert Xu
parent b14c534517
commit 284e76387c
2 changed files with 10 additions and 0 deletions
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3
include/linux/timeriomem-rng.h
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@ -13,4 +13,7 @@ struct timeriomem_rng_data {
/* measures in usecs */
unsigned int period;
/* bits of entropy per 1024 bits read */
unsigned int quality;
};