On Thu, Nov 27, 2014 at 12:20:48PM +0100, Krzysztof Kozlowski wrote: > +- ena-gpios: GPIO to use for enable control. Actual implementation depends > + on regulator driver. The bindings documentation for given driver describes > + which regulator actually supports it. > +- ena-gpio-open-drain: GPIO is open drain type. I'm relly not a big fan of adding a fixed name property here with no override capability, it means that the naming won't reflect the specific regulator design so closely and in practice for many of the PMICs the GPIO control can do rather more than just control enables and supports reprogramming. The latter case where we've got a signal which can sometimes be simply and enable but sometimes more makes it especially worrying to have the property always be there, it's something that might work in some configurations but could easily be broken if we try to exploit more advanced functionality (things also triggering other configuration changes at the same time). Factoring out the code is good but it seems better to have it be something which drivers can control, for example by having them explicitly specify a property name to use or perhaps a flag to enable the default name. We also need an invert option.
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