On Fri, Jul 25, 2014 at 07:57:46PM +0800, Jisheng Zhang wrote: > pca954x may be power lost during suspend, so after resume we also suffer > the issue fixed by commit cd823db8b1161ef0d756514d280715a576d65cc3, > > "pca954x power-on default is channel 0 connected. If multiple pca954x > muxes are connected to the same physical I2C bus, the parent bus will > see channel 0 devices behind both muxes by default." > > What's more, when resume bootloader may also operate the mux, so the > the channel connected after that may not be the one driver thought. > > We fix this problem by putting the mux to disconnected state and > clearing last_chan in the resume hook. > > Signed-off-by: Jisheng Zhang <jszhang@xxxxxxxxxxx> Applied to for-next, thanks!
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