Messages in this thread | | | Date | Thu, 18 Dec 2014 08:13:34 +0000 | From | Lee Jones <> | Subject | Re: [PATCH 5/8] watchdog: bindings: Provide ST bindings for ST's LPC Watchdog device |
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On Wed, 17 Dec 2014, Arnd Bergmann wrote:
> On Wednesday 17 December 2014 16:45:24 Lee Jones wrote: > > +- compatible : Must be one of: "st,stih407-lpc" "st,stih416-lpc" > > + "st,stih415-lpc" "st,stid127-lpc" > > +- reg : LPC registers base address + size > > +- interrupts : LPC interrupt line number and associated flags > > +- clocks : Clock used by LPC device (See: ../clock/clock-bindings.txt) > > +- st,lpc-mode : The LPC can run either one of two modes ST_LPC_MODE_RTC [0] or > > + ST_LPC_MODE_WDT [1]. One (and only one) mode must be > > + selected. > > > > I'm glad you got it to work with two drivers for the same device. > > With this binding, I'm still a bit unhappy about the st,lpc-mode property, > in particular since you rely on a shared include file for something that > can only be set in one way or another and always has to be present. > > Why not just use a boolean property that enforces one mode when present > and another mode when absent?
There is nothing stopping me from doing that, and it was a consideration. I concluded that this method would be more explicit however. Both when describing our choices in DT and at a functional level within each of the drivers.
Let me know if you fundamentally disagree and I can fix-up.
-- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog
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