From 28fa7f5243c02a812af50707c9805c2b57deceeb Mon Sep 17 00:00:00 2001 From: Nathan Chancellor Date: Thu, 21 Aug 2025 13:52:12 -0700 Subject: [PATCH] drm/bridge: cdns-dsi: Select VIDEOMODE_HELPERS When no other driver selects CONFIG_VIDEOMODE_HELPERS but CONFIG_DRM_CDNS_DSI is enabled, there is a linker or modpost error: ERROR: modpost: "drm_display_mode_to_videomode" [drivers/gpu/drm/bridge/cadence/cdns-dsi.ko] undefined! Select VIDEOMODE_HELPERS to ensure that this helper function is available to the driver. Fixes: ce4bc5ca7c1d ("drm/bridge: cdns-dsi: Use video mode and clean up cdns_dsi_mode2cfg()") Signed-off-by: Nathan Chancellor Reviewed-by: Dmitry Baryshkov Link: https://lore.kernel.org/r/20250821-cdns-videohelpers-v1-1-853e021908cf@kernel.org Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/bridge/cadence/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/bridge/cadence/Kconfig b/drivers/gpu/drm/bridge/cadence/Kconfig index cced81633ddcd..f1d8a8a151d84 100644 --- a/drivers/gpu/drm/bridge/cadence/Kconfig +++ b/drivers/gpu/drm/bridge/cadence/Kconfig @@ -6,6 +6,7 @@ config DRM_CDNS_DSI select DRM_PANEL_BRIDGE select GENERIC_PHY select GENERIC_PHY_MIPI_DPHY + select VIDEOMODE_HELPERS depends on OF help Support Cadence DPI to DSI bridge. This is an internal -- 2.47.3