https://github.com/torvalds/linux
Revision 1de67a3dee7a279ebe4d892b359fe3696938ec15 authored by Christian Eggers on 09 October 2020, 11:03:19 UTC, committed by Wolfram Sang on 02 December 2020, 20:28:20 UTC
Arbitration Lost (IAL) can happen after every single byte transfer. If
arbitration is lost, the I2C hardware will autonomously switch from
master mode to slave. If a transfer is not aborted in this state,
consecutive transfers will not be executed by the hardware and will
timeout.

Signed-off-by: Christian Eggers <ceggers@arri.de>
Tested (not extensively) on Vybrid VF500 (Toradex VF50):
Tested-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Cc: stable@vger.kernel.org
Signed-off-by: Wolfram Sang <wsa@kernel.org>
1 parent 384a956
History
Tip revision: 1de67a3dee7a279ebe4d892b359fe3696938ec15 authored by Christian Eggers on 09 October 2020, 11:03:19 UTC
i2c: imx: Check for I2SR_IAL after every byte
Tip revision: 1de67a3

back to top