On Fri, Apr 04, 2014 at 05:44:23PM +0530, Harini Katakam wrote: > On Fri, Apr 4, 2014 at 3:39 PM, Mark Brown <broonie@xxxxxxxxxx> wrote: > > On Fri, Apr 04, 2014 at 08:30:38AM +0530, Harini Katakam wrote: > >> This IP can drive 4 slaves. > >> The CS line to be driven is selected in spi device structure and > >> that is driven by the software. > > So why specify this in the binding at all? If the device always has the > > same number of chip selects it's redundant. > I'm sorry, I should have explained that better. > The IP can support upto 4 chip selects. > The num-cs value here is the number of chip selects actually used on the board. Why does that need to be configured? Surely the presence of slaves is enough information.
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