On Fri, Oct 12, 2018 at 1:45 PM Russell King - ARM Linux <linux@xxxxxxxxxxxxxxx> wrote: > > On Fri, Oct 12, 2018 at 11:39:15AM +0100, Jon Hunter wrote: > > We had the same situation for Tegra124 Jetson TK1 but I don't think that > > adding a pseudo intermediate regulator is cleaner. If the GPIO controls > > more than one regulator, I don't see why is it necessary to change the > > DT. There are several other people reporting the same problem with > > various different boards. So this does seem to be a common usage. > > Given that DT describes the hardware, not the software implementation, > it must not change just because we move from GPIO numbers to GPIO > descriptors. > > The existing DT description is reasonable, and introducing ficticious > regulators in DT to work around the implementation is not reasonable. If there is no way to detect shared use of GPIO line for regulators (*) from current DT description, DT description should be updated to reflect, yes, hardware. (*) Not familiar with the guts of DT descriptive language, don't know if there are some ways to do a such without additional flags or so. -- With Best Regards, Andy Shevchenko
