This patch adds documentation of device tree bindings for the STM32 I2C
controller.
Signed-off-by: NM'boumba Cedric Madianga <cedric.madianga@gmail.com>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NWolfram Sang <wsa@the-dreams.de>