i2c: rcar: implement bus recovery

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We can force levels of SCL and SDA, so we can use that for bus recovery.
Note that we cannot read SDA back, because we will only get the internal
state of the bus free detection.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

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Wolfram Sang 2018-01-09 14:58:59 +01:00 • committed by Wolfram Sang

parent 2806e6ad77

commit 7d2c17f021

1 changed files with 52 additions and 2 deletions

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drivers/i2c/busses/i2c-rcar.c

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