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| author | Ludovic Desroches | 2015-10-26 10:38:27 +0100 |
|---|---|---|
| committer | Wolfram Sang | 2015-10-26 15:44:59 +0100 |
| commit | a9bed6b10bd117a300cceb9062003f7a2761ef99 (patch) | |
| tree | 6ab2b6481067ab4d759f4a206d84dd19745e6aae /Documentation | |
| parent | i2c: pnx: Use setup_timer instead of open coding it (diff) | |
| download | kernel-qcow2-linux-a9bed6b10bd117a300cceb9062003f7a2761ef99.tar.gz kernel-qcow2-linux-a9bed6b10bd117a300cceb9062003f7a2761ef99.tar.xz kernel-qcow2-linux-a9bed6b10bd117a300cceb9062003f7a2761ef99.zip | |
i2c: at91: manage unexpected RXRDY flag when starting a transfer
In some cases, we could start a new i2c transfer with the RXRDY flag
set. It is not a clean state and it leads to print annoying error
messages even if there no real issue. The cause is only having garbage
data in the Receive Holding Register because of a weird behavior of the
RXRDY flag.
Reported-by: Peter Rosin <peda@lysator.liu.se>
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Tested-by: Peter Rosin <peda@lysator.liu.se>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Fixes: 93563a6a71bb ("i2c: at91: fix a race condition when using the DMA controller")
Cc: stable@vger.kernel.org #4.1
Diffstat (limited to 'Documentation')
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