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SubjectRe: [PATCH v8 03/26] dt-bindings: Add doc for the Ingenic TCU drivers


Le mar. 18 déc. 2018 à 17:36, Rob Herring <robh@kernel.org> a écrit :
> On Mon, Dec 17, 2018 at 4:04 PM Paul Cercueil <paul@crapouillou.net>
> wrote:
>>
>> Hi Rob,
>>
>> Le lun. 17 déc. 2018 à 22:05, Rob Herring <robh@kernel.org> a
>> écrit :
>> > On Wed, Dec 12, 2018 at 11:08:58PM +0100, Paul Cercueil wrote:
>> >> Add documentation about how to properly use the Ingenic TCU
>> >> (Timer/Counter Unit) drivers from devicetree.
>> >>
>> >> Signed-off-by: Paul Cercueil <paul@crapouillou.net>
>> >> ---
>> >>
>> >> Notes:
>> >> v4: New patch in this series. Corresponds to V2 patches
>> 3-4-5
>> >> with
>> >> added content.
>> >>
>> >> v5: - Edited PWM/watchdog DT bindings documentation to
>> point
>> >> to the new
>> >> document.
>> >> - Moved main document to
>> >>
>> Documentation/devicetree/bindings/timer/ingenic,tcu.txt
>> >> - Updated documentation to reflect the new devicetree
>> >> bindings.
>> >>
>> >> v6: - Removed PWM/watchdog documentation files as asked by
>> >> upstream
>> >> - Removed doc about properties that should be implicit
>> >> - Removed doc about ingenic,timer-channel /
>> >> ingenic,clocksource-channel as they are gone
>> >> - Fix WDT clock name in the binding doc
>> >> - Fix lengths of register areas in watchdog/pwm nodes
>> >>
>> >> v7: No change
>> >>
>> >> v8: - Fix address of the PWM node
>> >> - Added doc about system timer and clocksource children
>> >> nodes
>> >
>> > I thought we'd sorted this out...
>>
>> Yeah, well I just can't please everybody. V6/V7 didn't have the
>> system timer or clocksource in devicetree, which was good for
>> you, but then the driver nearly doubled in size and complexity,
>> and Thierry rightfully refused it. Now I'm at the point where
>
> You mean Daniel?

Oops - I meant Daniel yes.

>> I'm trying alternative ways of encoding the information in
>> devicetree, as suggested by various people, just so that you
>> accept it. Because I don't see any other option.
>
> Does the problem boil down to needing to reserve channel x to use PWMx
> pin? If so, just do a mask property of reserved for PWM channels.

Yes, that's exactly the problem. I will go with a property then. Thanks!

> Sorry this is going in circles.
>
> Rob

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