i2c: mediatek: Add arb clock in i2c driver

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When two i2c controllers are internally connected to the same
GPIO pins, the arb clock is needed to ensure that the waveforms
do not interfere with each other. And we also need to enable
the interrupt to find arb lost, old i2c controllers also have
the bit.

Signed-off-by: Qii Wang <qii.wang@mediatek.com>
Reviewed-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

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Qii Wang 2019-04-02 20:35:57 +08:00 • committed by Wolfram Sang

parent a3438152c6

commit cad6dc5d28

1 changed files with 22 additions and 3 deletions

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25

drivers/i2c/busses/i2c-mt65xx.c

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