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Groups > linux.kernel > #1686410
| From | Viresh Kumar <viresh.kumar@linaro.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [RFC v2 5/6] drivers: boot_constraint: Add initial DT bindings |
| Date | 2017-07-13 11:40 +0200 |
| Message-ID | <u2ILh-3SK-23@gated-at.bofh.it> (permalink) |
| References | <u2jtv-4CF-3@gated-at.bofh.it> <u2jtw-4CF-7@gated-at.bofh.it> <u2xmP-53z-27@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On 12-07-17, 16:28, Rob Herring wrote:
> Display is a pretty well known use case here. Do you have other
> examples in mind?
No, I don't.
@Stephen: Do you have more cases like this for your Qcom products ?
> Other cases I've seen are automotive with keeping
> the backup camera going and CAN bus handling. Though my new car has a
> flicker shortly after coming on, so I guess the handoff doesn't have
> to be completely seemless. :)
:)
> [...]
>
> > + mmc: mmc@0x0 {
> > + ...
> > + ...
> > + vmmc-supply = <&twl_reg1>;
> > + vmmcaux-supply = <&twl_reg2>;
> > + boot-constraint-supplies = "vmmc", "vmmcaux";
> > + boot-constraint-uV = <1800000 2000000>, /* vmmc */
> > + <2000000 2000000>; /* vmmcaux */
>
> No. I don't like how this is going to extend to all the other bindings
> people are going to want constraints for. We don't need a parallel set
> of properties for each type of binding.
Fair enough.
> I'm not convinced that we need a general solution for what's probably
> a handful of things that need a handoff versus just re-initialize.
What about keeping the first four patches (mostly) as it is and adding
these constraints from a platform specific constraints driver ?
Will that be acceptable ?
--
viresh
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[RFC v2 5/6] drivers: boot_constraint: Add initial DT bindings Viresh Kumar <viresh.kumar@linaro.org> - 2017-07-12 08:40 +0200
Re: [RFC v2 5/6] drivers: boot_constraint: Add initial DT bindings Rob Herring <robh+dt@kernel.org> - 2017-07-12 23:30 +0200
Re: [RFC v2 5/6] drivers: boot_constraint: Add initial DT bindings Chen-Yu Tsai <wens@csie.org> - 2017-07-13 05:00 +0200
Re: [RFC v2 5/6] drivers: boot_constraint: Add initial DT bindings Viresh Kumar <viresh.kumar@linaro.org> - 2017-07-13 07:20 +0200
Re: [RFC v2 5/6] drivers: boot_constraint: Add initial DT bindings Chen-Yu Tsai <wens@csie.org> - 2017-07-13 11:50 +0200
Re: [RFC v2 5/6] drivers: boot_constraint: Add initial DT bindings Viresh Kumar <viresh.kumar@linaro.org> - 2017-07-13 12:00 +0200
Re: [RFC v2 5/6] drivers: boot_constraint: Add initial DT bindings Viresh Kumar <viresh.kumar@linaro.org> - 2017-07-13 11:40 +0200
Re: [RFC v2 5/6] drivers: boot_constraint: Add initial DT bindings Rob Herring <robh@kernel.org> - 2017-07-17 19:40 +0200
Re: [RFC v2 5/6] drivers: boot_constraint: Add initial DT bindings Viresh Kumar <viresh.kumar@linaro.org> - 2017-07-18 08:00 +0200
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