The of-display-mode-bridge driver calls of_get_drm_display_mode(), which is provided when VIDEOMODE_HELPERS is selected. So far the dependency has been satisfied by the users selecting VIDEOMODE_HELPERS themselves (e.g. the Exynos and i.MX DRM drivers), which breaks as soon as a user does not, resulting in undefined references to of_get_drm_display_mode() at link time.
Select VIDEOMODE_HELPERS from DRM_OF_DISPLAY_MODE_BRIDGE, so that the dependency is always satisfied. Signed-off-by: Damon Ding <[email protected]> --- drivers/gpu/drm/bridge/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig index c7da6b02d7b6..f717523014e8 100644 --- a/drivers/gpu/drm/bridge/Kconfig +++ b/drivers/gpu/drm/bridge/Kconfig @@ -266,6 +266,7 @@ config DRM_NXP_PTN3460 config DRM_OF_DISPLAY_MODE_BRIDGE tristate depends on DRM_BRIDGE && OF + select VIDEOMODE_HELPERS help This is a DRM bridge implementation that uses of_get_drm_display_mode to acquire display mode. -- 2.34.1
