tree e2b398b763972d323b7bff25c800ac7dc4d85b2e
parent 84fe291e6e55e4a38d0060f67e8b133e765acc31
author Alexander Kochetkov <al.kochet@gmail.com> 1522162347 +0300
committer Heiko Schocher <hs@denx.de> 1523439267 +0200

dm: i2c: implement gpio-based I2C deblock

The commit implement a gpio-based software deblocking. The code
extract I2C pins description from device tree, switch pins to GPIO
mode, toggle SCL until slave release SDA, send I2C stop and switch
I2C pins back to I2C mode.

Signed-off-by: Alexander Kochetkov <al.kochet@gmail.com>