crypto: stm32/crc32 - don't sleep in runtime pm

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Ensure stm32_crc_update() and stm32_crc_init() can be called
in atomic context and can't sleep.

Add pm_runtime_irq_safe() to make pm_runtime_get_sync() atomic.
Change runtime pm to call clk_enable()/clk_disable() and change
system pm to unprepare/prepare the clock and force runtime pm
suspend/resume.

Signed-off-by: Nicolas Toromanoff <nicolas.toromanoff@st.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

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Nicolas Toromanoff 2020-05-12 16:11:12 +02:00 • committed by Herbert Xu

parent 10b89c43a6

commit 100f84beee

1 changed files with 36 additions and 9 deletions

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drivers/crypto/stm32/stm32-crc32.c

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