Re: [PATCH 0/8] Power domains support for Exynos5433 SoCs

Krzysztof Kozlowski
2017-01-27T07:52:32Z

On Fri, Jan 27, 2017 at 08:47:44AM +0100, Marek Szyprowski wrote:
> Hi Krzysztof,
>
> On 2017-01-27 08:43, Krzysztof Kozlowski wrote:
> > On Wed, Jan 25, 2017 at 12:55:34PM +0100, Marek Szyprowski wrote:
> > > Hello,
> > >
> > > This patchset is a final step to add support for all power domains
> > > on Exynos5433 SoCs. This patchset contains patches for adding Exynos5433
> > > support to Exynos power domain driver and definitions of all power
> > > domains found in Exynos5433 SoCs.
> > >
> > > Patches have been generated on top of linux-next from 25th January 2017.
> > >
> > > This is a part of a larger task, which goal is to add support for power
> > > domains on Exynos5433 SoCs / TM2 boards. All patches needed to get it
> > > working have been pushed to the following git repo:
> > > https://git.linaro.org/people/marek.szyprowski/linux-srpol.git v4.10-next-tm2-pd
> > >
> > > To get everything working following patches/patchsets are needed on top
> > > of the linux-next tree:
> > By "get everything working" you also mean that there is a runtime
> > dependency? In other words, can I apply DTS patches here?
>
> IMHO we should wait with applying pm domains DTS patches. Without ALL other
> patches
> kernel will sooner or later panic with "(a)synchronous external abort" or
> deadlock
> in a different way.

Okay, makes sense. A partial solution would be to apply them with
status=disabled. After all it is still a valid description of a
hardware. However this would not bring much benefits anyway...

Beside the name of node I mentioned, please put all the power domains
sorted to each other by address. I see the big picture here:
https://git.linaro.org/people/marek.szyprowski/linux-srpol.git/tree/arch/arm64/boot/dts/exynos/exynos5433.dtsi?h=v4.10-next-tm2-pd
and it does not looks ordered.

Best regards,
Krzysztof