tree ca5df449a65c07317e75818f5626c61d10ee1f3b
parent 46ceebc6a43cbaa32c66e90fa4f08bf416b18b52
author Masahiro Yamada <yamada.masahiro@socionext.com> 1535725848 +0900
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1539154399 +0200

i2c: uniphier-f: issue STOP only for last message or I2C_M_STOP

[ Upstream commit 4c85609b08c4761eca0a40fd7beb06bc650f252d ]

This driver currently emits a STOP if the next message is not
I2C_MD_RD.  It should not do it because it disturbs the I2C_RDWR
ioctl, where read/write transactions are combined without STOP
between.

Issue STOP only when the message is the last one _or_ flagged with
I2C_M_STOP.

Fixes: 6a62974b667f ("i2c: uniphier_f: add UniPhier FIFO-builtin I2C driver")
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>