i2c: i2c-stm32f7: Implement I2C release mechanism

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Feature prevents I2C lock-ups. Mechanism resets I2C state machine
and releases SCL/SDA signals but preserves I2C registers.

Signed-off-by: Pierre-Yves MORDRET <pierre-yves.mordret@st.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

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Pierre-Yves MORDRET 2018-04-11 15:24:58 +02:00 • committed by Wolfram Sang

parent 7ecc8cfde5

commit 562de4ff4c

1 changed files with 24 additions and 3 deletions

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drivers/i2c/busses/i2c-stm32f7.c

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