i2c: rcar: document HW incapabilities
authorWolfram Sang <wsa+renesas@sang-engineering.com>
Mon, 19 Jun 2017 21:41:46 +0000 (23:41 +0200)
committerWolfram Sang <wsa@the-dreams.de>
Fri, 23 Jun 2017 18:30:46 +0000 (20:30 +0200)
commitb395ba21699dbbca2dbf05833a71f5fbf5245a3f
tree50dac13950fa19ad1bef6e9fbf640a43d09ec8c6
parentf64622167f4aa5124fed264d481509829d34e126
i2c: rcar: document HW incapabilities

Add recent findings (IGNORE_NAK) and document in a bit more detail why
the feature is not possible.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
drivers/i2c/busses/i2c-rcar.c