tree 60cd98b891b6cfcd2a5475ece284f48ce620ea09
parent 18d30c0946f912cdb86ab0417661eccda6342375
author Russell King <rmk+kernel@armlinux.org.uk> 1588757798 +0100
committer Wolfram Sang <wsa@kernel.org> 1589279835 +0200

i2c: pxa: clear all master action bits in i2c_pxa_stop_message()

If we timeout during a message transfer, the control register may
contain bits that cause an action to be set. Read-modify-writing the
register leaving these bits set may trigger the hardware to attempt
one of these actions unintentionally.

Always clear these bits when cleaning up after a message or after
a timeout.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Wolfram Sang <wsa@kernel.org>