Messages in this thread | | | Date | Tue, 11 Sep 2018 22:55:05 +0200 | From | Pavel Machek <> | Subject | Re: [PATCH v6 1/2] dt-bindings: leds: Add bindings for lm3697 driver |
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Hi!
> >>>>>> And I think Jacek pointed out that the bindings references in this bindings > >>>>>> don't even exist. > >>>>>> > >>>>>> I am thinking we need to deprecate this MFD driver and consolidate these drivers > >>>>>> in the LED directory as we indicated before. I did not find any ti-lmu support > >>>>>> code. > >>>>>> > >>>>>> ti-lmu common core code and then the LED children appending the feature differentiation. > >>>>> > >>>>>> Need some maintainer weigh in here. > >>>>> > >>>>> Hehe. I'm maintnainer. Fun. > >>>> > >>>> I know. I want to see if there was any other opinion. Especially for the LED driver. > >>>> > >>> [...] > >>> > >>> I have a question - is this lm3697 LED controller a cell of some MFD > >>> device? Or is it a self-contained chip? > >>> > >> > >> This is a self contained chip. And the LM3697 only function is a LED driver. > >> It does not have any other special functions like the LM363X drivers for GPIO and Regulator support. > > > > This is an argument for merging it as a standalone LED class driver > > then. It is even more justifiable, taking into account uncertainties > > related to the proper way of adding the support for it to the existing > > MFD driver, whereas the code reuse would be the only advantage of having > > thus support in MFD subsystem. > > Does the argument carry over to the other devices?
We really need something reasonable, that works for stand-alone LEDs, and also works for LEDs that are part of MFD when the hardware is similar.
> Like the LM3632 (part of the ti-lmu) has flash and torch and no other special functions > so it would look like the lm3601x family with different register mappings. > > The LM3631 seems to also be just a LED driver with no extra functionality > > I could go buy an EVM and put together a driver for that device as well using the lm3601x as > reference.
I do have hardware with lm3532. I can test patches, and I guess I can port driver easily if it is obvious how to do that.
Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html [unhandled content-type:application/pgp-signature] | |