Re: [PATCH v2 4/7] regulator: core: Allow specifying an initial load w/ the bulk API

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Hi,

On Mon, Aug 22, 2022 at 11:23 PM Yongqin Liu <yongqin.liu@xxxxxxxxxx> wrote:
>
> Hi, Douglas
>
> Just an update on the fix you pointed out previously here:
> > > [1] https://lore.kernel.org/r/20220809142738.1.I91625242f137c707bb345c51c80c5ecee02eeff3@changeid
>
> With it I could boot the hikey960 build to the home screen if it does
> not use the GKI kernel.
> but the problem will be reproduced if it uses the GKI kernel.
>
> And if this change is reverted, then it could boot with the GKI kernel as well.
>
> I am not sure what's the reason there, but there seems to be some
> difference with the fix above and the workaround of revert.
> Not sure if you have any idea about that.
>
> Regarding the GKI kernel(Android Generic Kernel Image)[2], it's built
> from the android-mainline tree(f51334eac4de) without any workaround.
> (Neither the revert, nor the fix applied), and the regulator modules
> used for the hikey960 build are hi6421v530-regulator.ko and
> hi655x-regulator.ko
>
> I am still not sure if it would work with the GKI kernel that has the
> fix that you pointed out in. the case that both the GKI kernel and
> vendor tree have the fix.
> Will update here when I have some results.
>
> [2]: https://source.android.com/docs/core/architecture/kernel/generic-kernel-image?hl=en

That's not too surprising. The broken patch is in the core kernel so
you need the fix in the core kernel. I think that means you'll have to
wait until `android-mainline` gets the fix. I don't work on Android,
so if there's some other route to get an expedited fix into
android-mainline I'm not aware of it.

-Doug

-Doug



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