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Shubhrajyoti Datta 07bf8c30fa i2c: cadence: Fix the hold bit setting

[ Upstream commit d358def706 ]

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: df8eb5691c ("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>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2023-05-15 12:05:22 +09:00

algos

i2c: algo-bit: declare i2c_bit_quirk_no_clk_stretch as static

2016-05-11 17:16:30 +02:00

busses

i2c: cadence: Fix the hold bit setting

2023-05-15 12:05:22 +09:00

muxes

i2c: mux: reg: put away the parent i2c adapter on probe failure

2018-04-13 19:47:57 +02:00

i2c-boardinfo.c

i2c: remove __init from i2c_register_board_info()