* [PATCH] drm/bridge: cdns-dsi: Select VIDEOMODE_HELPERS
@ 2025-08-21 20:52 Nathan Chancellor
0 siblings, 0 replies; only message in thread
From: Nathan Chancellor @ 2025-08-21 20:52 UTC (permalink / raw)
To: Andrzej Hajda, Neil Armstrong, Robert Foss, Laurent Pinchart,
Jonas Karlman, Jernej Skrabec, Maarten Lankhorst, Maxime Ripard,
Thomas Zimmermann, Devarsh Thakkar, Tomi Valkeinen,
Aradhya Bhatia
Cc: dri-devel, patches, Nathan Chancellor
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 <nathan@kernel.org>
---
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 cced81633ddc..f1d8a8a151d8 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
---
base-commit: 3f13bcc886fc034113cb75cb32b8d9db1216b846
change-id: 20250821-cdns-videohelpers-71182a6145bc
Best regards,
--
Nathan Chancellor <nathan@kernel.org>
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