[PATCH v1 2/2] drivers/gpu/drm: don't select DMA_CMA or CMA from aspeed or etnaviv
arnd at arndb.de
Thu Apr 8 21:44:22 AEST 2021
On Thu, Apr 8, 2021 at 1:00 PM David Hildenbrand <david at redhat.com> wrote:
> > It is a somewhat awkward way to say "prevent this symbol from
> > being =y if the dependency is =m".
> What would be the right thing to do in the case here then to achieve the
> "if DRMA_ASPEED_GFX is enabled, also enable DMA_CMA id possible"?
> One approach could be to have for DMA_CMA
> default y if DRMA_ASPEED_GFX
> but it feels like the wrong way to tackle this.
I'm still not sure what you are trying to achieve. Is the idea only to provide
a useful default for DMA_CMA depending on which drivers are enabled?
This is something you could do using a hidden helper symbol like
bool "Aspeed display driver"
Select this from any driver that benefits from CMA being enabled
bool "Use CMA helpers for DRM"
More information about the Linux-aspeed