i2c: mxs: Fix PIO mode on i.MX23

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The i.MX23 I2C controller is also capable of PIO, but needs a little harder
push to behave. The controller needs to be reset after every PIO/DMA operation
for some reason, otherwise in rare cases, the controller can hang or emit
bytes onto the bus.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

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Marek Vasut 2013-09-30 01:23:55 +02:00 • committed by Wolfram Sang

parent 29faeb388a

commit 19e221bed2

1 changed files with 29 additions and 11 deletions

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drivers/i2c/busses/i2c-mxs.c

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