i2c: meson: use full 12 bits for clock divider

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The clock divider has 12 bits, splitted into a 10 bit field and a
2 bit field. The extra 2 bits aren't used currently.

Change this to use the full 12 bits and warn if the requested
frequency is too low.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Acked-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

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Heiner Kallweit 2017-03-25 14:07:57 +01:00 • committed by Wolfram Sang

parent 39b2ca6853

commit 47bb8f71ca

1 changed files with 14 additions and 2 deletions

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drivers/i2c/busses/i2c-meson.c

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