i2c: stm32f7: rework slave_id allocation

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The IP can handle two slave addresses. One address can either be
7 bits or 10 bits while the other can only be 7 bits.
In order to ensure that a 10 bits address can always be allocated
(assuming there is only one 7 bits address already allocated),
pick up the 7-bits only address slot in priority when performing a 7-bits
address allocation.

Fixes: 60d609f30d ("i2c: i2c-stm32f7: Add slave support")
Signed-off-by: Alain Volmat <alain.volmat@st.com>
Reviewed-by: Pierre-Yves MORDRET <pierre-yves.mordret@st.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

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Alain Volmat 2019-10-15 15:03:09 +02:00 • committed by Wolfram Sang

parent 07f047e3fe

commit 52d3be711e

1 changed files with 1 additions and 1 deletions

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drivers/i2c/busses/i2c-stm32f7.c

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