On Mon, Mar 09, 2015 at 11:39:17AM -0500, Felipe Balbi wrote: > On Thu, Feb 19, 2015 at 12:06:49PM -0600, Felipe Balbi wrote: > > If either SCL or SDA are stuck low, we need to > > recover the bus using the procedure described > > on section 3.1.16 of the I2C specification. > > > > Note that we're trying to implement the procedure > > exactly as described by that section. First we > > check which line is stuck low, then implement > > one or the other procedure. If SDA recovery procedure > > fails, we reset our IP in an attempt to make it work. > > > > Signed-off-by: Felipe Balbi <balbi@xxxxxx> > > --- > > > > Tested with AM437x IDK, AM437x SK, BeagleBoneBlack and Beagle X15 with > > 1000 iterations of i2cdetect on all available buses. > > > > That said, I couldn't get any device to hold the bus busy so I could > > see this working. If anybody has any good way of forcing a condition > > so that we need bus recovery, I'd be glad to look at. > > ping any comments here ?? Anybody at all ???? -- balbi
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