[PATCH v4 2/2] media: mtk-vcodec: fix build breakage when one of VPU or SCP is enabled

[Alexandre Courbot]

On Tue, Oct 13, 2020 at 9:44 PM Alexandre Courbot <acourbot at chromium.org> wrote:
>
> The addition of MT8183 support added a dependency on the SCP remoteproc
> module. However the initial patch used the "select" Kconfig directive,
> which may result in the SCP module to not be compiled if remoteproc was
> disabled. In such a case, mtk-vcodec would try to link against
> non-existent SCP symbols. "select" was clearly misused here as explained
> in kconfig-language.txt.
>
> Replace this by a "depends" directive on at least one of the VPU and
> SCP modules, to allow the driver to be compiled as long as one of these
> is enabled, and adapt the code to support this new scenario.
>
> Also adapt the Kconfig text to explain the extra requirements for MT8173
> and MT8183.
>
> Reported-by: Sakari Ailus <sakari.ailus at linux.intel.com>
> Signed-off-by: Alexandre Courbot <acourbot at chromium.org>

Fixes: bf1d556ad4e0 ("media: mtk-vcodec: abstract firmware interface")