]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
i2c: cadence: Fix the hold bit setting
authorShubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Tue, 5 Feb 2019 11:12:53 +0000 (16:42 +0530)
committerWolfram Sang <wsa@the-dreams.de>
Fri, 15 Feb 2019 08:42:17 +0000 (09:42 +0100)
commitd358def706880defa4c9e87381c5bf086a97d5f9
tree9b4bb7c99fa280365631179c3d71a44d2fd90369
parentd13937116f1e82bf508a6325111b322c30c85eb9
i2c: cadence: Fix the hold bit setting

In case the hold bit is not needed we are carrying the old values.
Fix the same by resetting the bit when not needed.

Fixes the sporadic i2c bus lockups on National Instruments
Zynq-based devices.

Fixes: df8eb5691c48 ("i2c: Add driver for Cadence I2C controller")
Reported-by: Kyle Roeschley <kyle.roeschley@ni.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Tested-by: Kyle Roeschley <kyle.roeschley@ni.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
drivers/i2c/busses/i2c-cadence.c