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SubjectRe: [STLinux Kernel] [PATCH 06/12] watchdog: bindings: Supply knowledge of a third supported device - clocksource
On Fri, 08 May 2015, Peter Griffin wrote:
> On Fri, 08 May 2015, Lee Jones wrote:
> > > > > >
> > > > > > -- compatible : Must be one of: "st,stih407-lpc" "st,stih416-lpc"
> > > > > > - "st,stih415-lpc" "st,stid127-lpc"
> > > > > > +- compatible : Must be one of: "st,stih407-lpc"
> > > > >
> > > > > The same comment as the RTC DT patch, you are removing the compatibles
> > > > > documentation for the other supported platforms like stih416-lpc.
> > > > > AFAIK they are required in the driver to get the correct sysconfig register.
> > > >
> > > > That's intentional. I haven't yet tested any of this IP on
> > > > STiH41{5,6} & STiH127. Due to lack of documentation, I'm not even
> > > > sure if this IP even exists on some of the other platforms. I will
> > > > add them back when support is added to both driver and DTB and I've
> > > > been able to test them.
> > >
> > > That was kind of my point, the driver code AFAIK already contains support
> > > for these SoC's.
> > >
> > > I would either expect the patch to remove support from the DT docs AND the
> > > driver, or leave it as is.
> > >
> > > It seems odd to only change the DT docs, and become unaligned to the
> > > code (this assumes I'm looking at the latest patchset here
> > > https://lkml.org/lkml/2015/3/4/1088 which includes support for these SoCs).
> >
> > The decision to remove these 'supported' platforms was made on the RTC
> > side, where there is only support for "st,stih407-lpc" in the driver.
>
> The change makes sense in the RTC case then.
>
> > I thought it best to mirror that thought over to the Watchdog LPC
> > bindings,
>
> Why? This is the bit I disagree with, the wdt DT docs IMHO should match the wdt
> driver code.

Fair enough. I'll add the 'supported' compatibles back in.

--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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