title: I2C; add atomic_xfer callback
team: IO
key: 30697a96-203e-11eb-98aa-cf61d186fbec
assignee: Ulrich
status: Done

upstream:
  - torvalds: 82531dfdf163319cbeaa969c734ebf8d84456810 # i2c: rcar: implement atomic transfers

comments:
  - "created seperate task from the already finished IIC task"
  - "Wolfram provided test case to Ulrich"
  - "v1: http://patchwork.ozlabs.org/project/linux-i2c/patch/20210212164541.8986-1-uli+renesas@fpond.eu/"
  - "merged"