From: Randy Dunlap rdunlap@infradead.org

commit ed01fca38717169fcb61bd45ad1c3750d9c40d59 upstream.

The Analogix DRM ANX7625 bridge driver uses mips_dsi_() function interfaces so it should select DRM_MIPI_DSI to prevent build errors.

ERROR: modpost: "mipi_dsi_attach" [drivers/gpu/drm/bridge/analogix/anx7625.ko] undefined! ERROR: modpost: "mipi_dsi_device_register_full" [drivers/gpu/drm/bridge/analogix/anx7625.ko] undefined! ERROR: modpost: "of_find_mipi_dsi_host_by_node" [drivers/gpu/drm/bridge/analogix/anx7625.ko] undefined! ERROR: modpost: "mipi_dsi_device_unregister" [drivers/gpu/drm/bridge/analogix/anx7625.ko] undefined! ERROR: modpost: "mipi_dsi_detach" [drivers/gpu/drm/bridge/analogix/anx7625.ko] undefined!

Fixes: 8bdfc5dae4e3 ("drm/bridge: anx7625: Add anx7625 MIPI DSI/DPI to DP") Reported-by: kernel test robot lkp@intel.com Signed-off-by: Randy Dunlap rdunlap@infradead.org Reviewed-by: Robert Foss robert.foss@linaro.org Cc: Xin Ji xji@analogixsemi.com Cc: Sam Ravnborg sam@ravnborg.org Cc: dri-devel@lists.freedesktop.org Cc: Andrzej Hajda a.hajda@samsung.com Cc: Neil Armstrong narmstrong@baylibre.com Cc: Robert Foss robert.foss@linaro.org Cc: stable@vger.kernel.org Signed-off-by: Robert Foss robert.foss@linaro.org Link: https://patchwork.freedesktop.org/patch/msgid/20210415183619.1431-1-rdunlap@... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/bridge/analogix/Kconfig | 1 + 1 file changed, 1 insertion(+)

--- a/drivers/gpu/drm/bridge/analogix/Kconfig +++ b/drivers/gpu/drm/bridge/analogix/Kconfig @@ -30,6 +30,7 @@ config DRM_ANALOGIX_ANX7625 tristate "Analogix Anx7625 MIPI to DP interface support" depends on DRM depends on OF + select DRM_MIPI_DSI help ANX7625 is an ultra-low power 4K mobile HD transmitter designed for portable devices. It converts MIPI/DPI to