[Freedreno] [PATCH] [RFC] qcom_scm: hide Kconfig symbol

Arnd Bergmann arnd at kernel.org
Mon Sep 27 20:15:45 UTC 2021


On Mon, Sep 27, 2021 at 9:52 PM Bjorn Andersson
<bjorn.andersson at linaro.org> wrote:
> On Mon 27 Sep 08:22 PDT 2021, Arnd Bergmann wrote:
> > From: Arnd Bergmann <arnd at arndb.de>
> >
> >  - To avoid a circular dependency chain involving RESET_CONTROLLER
> >    and PINCTRL_SUNXI, change the 'depends on RESET_CONTROLLER' in
> >    the latter one to 'select'.
>
> Can you please help me understand why this is part of the same patch?

This can be done as a preparatory patch if we decide to do it this way,
for the review it seemed better to spell out that this is required.

I still hope that we can avoid adding another 'select RESET_CONTROLLER'
if someone can figure out what to do instead.

The problem here is that QCOM_SCM selects RESET_CONTROLLER,
and turning that into 'depends on' would in turn mean that any driver that
wants to select QCOM_SCM would have to have the same RESET_CONTROLLER
dependency.

An easier option might be to find a way to build QCOM_SCM without
RESET_CONTROLLER for compile testing purposes. I don't know
what would break from that.

     Arnd


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