hwrng: stm32 - rework read timeout calculation

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Increase timeout delay to support longer timing linked
to rng initialization. Measurement is based on timer instead
of instructions per iteration which is not powerful on all
targets.

Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

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lionel.debieve@st.com 2018-02-15 14:03:12 +01:00 • committed by Herbert Xu

parent a888df9b89

commit 279f4f8f2f

1 changed files with 10 additions and 15 deletions

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drivers/char/hw_random/stm32-rng.c

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