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authorMark Tomlinson <mark.tomlinson@alliedtelesis.co.nz>2014-12-02 08:49:18 +1300
committerHeiko Schocher <hs@denx.de>2014-12-08 07:27:06 +0100
commit2fe50ef4034b69b45413108dd3e736de2548c04a (patch)
tree29f55f284566e86ef0d20c41465d686877b666ac /drivers/i2c/u8500_i2c.c
parent97cdf64026c7d749dd7a5c0dbaba7a60a7292ac9 (diff)
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i2c: Fix deselection of muxes
Due to an uninitialised variable, when muxes were deselected, any value could be written to the mux control register. On the PCA9548, this could result in multiple channels being selected, thus enabling multiple pull-up resistors, and much bus capacitance. The fix is simply to initialise the written value to zero. Signed-off-by: Mark Tomlinson <mark.tomlinson@alliedtelesis.co.nz>
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