i2c: mv64xxx: Add bus error recovery

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This adds i2c bus recovery to the mv64xxx driver.

Implement bus recovery to recover from SCL/SDA stuck low.

This uses the generic recovery function, setting the clock/data lines as
GPIO pins, and sending 9 clocks to try and recover the bus.

Signed-off-by: Mark Tomlinson <mark.tomlinson@alliedtelesis.co.nz>
[wsa: added some curly braces]
Signed-off-by: Wolfram Sang <wsa@kernel.org>

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Mark Tomlinson 2020-08-27 10:35:16 +12:00 • committed by Wolfram Sang

parent 5df324b5f4

commit 9c7cae2427

1 changed files with 28 additions and 1 deletions

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drivers/i2c/busses/i2c-mv64xxx.c

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