drm/fbdev: Select FB_CORE dependency for fbdev on DMA and TTM

Select FB_CORE if GEM's DMA and TTM implementations support fbdev
emulation. Fixes linker errors about missing symbols from the fbdev
subsystem.

Also see [1] for a related SHMEM fix.

Fixes: dadd28d4142f ("drm/client: Add client-lib module")
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/series/141411/
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20241216074450.8590-3-tzimmermann@suse.de

diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index a0690049b292ecf1088338c37467a0489b1b0b11..ccee570eab7dbdcfd9a4c17cc39bfb0602afba20 100644 (file)
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -358,6 +358,7 @@ config DRM_TTM_HELPER
        tristate
        depends on DRM
        select DRM_TTM
+       select FB_CORE if DRM_FBDEV_EMULATION
        select FB_SYSMEM_HELPERS_DEFERRED if DRM_FBDEV_EMULATION
        help
          Helpers for ttm-based gem objects
@@ -365,6 +366,7 @@ config DRM_TTM_HELPER
 config DRM_GEM_DMA_HELPER
        tristate
        depends on DRM
+       select FB_CORE if DRM_FBDEV_EMULATION
        select FB_DMAMEM_HELPERS_DEFERRED if DRM_FBDEV_EMULATION
        help
          Choose this if you need the GEM DMA helper functions