On 03/19/2013 03:27 PM, Marek Vasut wrote: > Dear Andrew Chew, > >> The pwm-backlight driver now takes a mandatory regulator that is gotten >> during driver probe. Initialize a dummy regulator to satisfy this >> requirement. >> >> Signed-off-by: Andrew Chew <[email protected]> > > Do we really need a mandatory regulator? Why can't it be optional?
IIRC, the previous advice I've seen is that if a device (driver) uses a regulator, it must /require/ a regulator, and if a particular board doesn't actually have a SW-controlled regulator, then a fixed- or dummy- regulator should be provided to satisfy this requirement. CC'ing Mark Brown to make sure I really do Recall Correctly. -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
