From: Randy Dunlap <rdun...@infradead.org>

commit ad085b3a712a89e4a48472121b231add7a8362e4 upstream.

The Lontium DRM bridge drivers use mipi_dsi_() function interfaces so
they need to select DRM_MIPI_DSI to prevent build errors.

ERROR: modpost: "mipi_dsi_attach" [drivers/gpu/drm/bridge/lontium-lt9611uxc.ko] 
undefined!
ERROR: modpost: "mipi_dsi_device_register_full" 
[drivers/gpu/drm/bridge/lontium-lt9611uxc.ko] undefined!
ERROR: modpost: "of_find_mipi_dsi_host_by_node" 
[drivers/gpu/drm/bridge/lontium-lt9611uxc.ko] undefined!
ERROR: modpost: "mipi_dsi_device_unregister" 
[drivers/gpu/drm/bridge/lontium-lt9611uxc.ko] undefined!
ERROR: modpost: "mipi_dsi_detach" [drivers/gpu/drm/bridge/lontium-lt9611uxc.ko] 
undefined!
ERROR: modpost: "mipi_dsi_attach" [drivers/gpu/drm/bridge/lontium-lt9611.ko] 
undefined!
ERROR: modpost: "mipi_dsi_device_register_full" 
[drivers/gpu/drm/bridge/lontium-lt9611.ko] undefined!
ERROR: modpost: "of_find_mipi_dsi_host_by_node" 
[drivers/gpu/drm/bridge/lontium-lt9611.ko] undefined!
ERROR: modpost: "mipi_dsi_device_unregister" 
[drivers/gpu/drm/bridge/lontium-lt9611.ko] undefined!
ERROR: modpost: "mipi_dsi_detach" [drivers/gpu/drm/bridge/lontium-lt9611.ko] 
undefined!
WARNING: modpost: suppressed 5 unresolved symbol warnings because there were 
too many)

Fixes: 23278bf54afe ("drm/bridge: Introduce LT9611 DSI to HDMI bridge")
Fixes: 0cbbd5b1a012 ("drm: bridge: add support for lontium LT9611UXC bridge")
Fixes: 30e2ae943c26 ("drm/bridge: Introduce LT8912B DSI to HDMI bridge")
Reported-by: kernel test robot <l...@intel.com>
Signed-off-by: Randy Dunlap <rdun...@infradead.org>
Reviewed-by: Adren Grassein <adrien.grass...@gmail.com>
Cc: Dmitry Baryshkov <dmitry.barysh...@linaro.org>
Cc: Sam Ravnborg <s...@ravnborg.org>
Cc: Vinod Koul <vk...@kernel.org>
Cc: Bjorn Andersson <bjorn.anders...@linaro.org>
Cc: Srinivas Kandagatla <srinivas.kandaga...@linaro.org>
Cc: Adrien Grassein <adrien.grass...@gmail.com>
Cc: Andrzej Hajda <a.ha...@samsung.com>
Cc: Neil Armstrong <narmstr...@baylibre.com>
Cc: Robert Foss <robert.f...@linaro.org>
Cc: dri-devel@lists.freedesktop.org
Cc: sta...@vger.kernel.org
Signed-off-by: Robert Foss <robert.f...@linaro.org>
Link: 
https://patchwork.freedesktop.org/patch/msgid/20210415183639.1487-1-rdun...@infradead.org
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 drivers/gpu/drm/bridge/Kconfig |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/gpu/drm/bridge/Kconfig
+++ b/drivers/gpu/drm/bridge/Kconfig
@@ -67,6 +67,7 @@ config DRM_LONTIUM_LT9611UXC
        depends on OF
        select DRM_PANEL_BRIDGE
        select DRM_KMS_HELPER
+       select DRM_MIPI_DSI
        select REGMAP_I2C
        help
          Driver for Lontium LT9611UXC DSI to HDMI bridge
@@ -151,6 +152,7 @@ config DRM_SII902X
        tristate "Silicon Image sii902x RGB/HDMI bridge"
        depends on OF
        select DRM_KMS_HELPER
+       select DRM_MIPI_DSI
        select REGMAP_I2C
        select I2C_MUX
        select SND_SOC_HDMI_CODEC if SND_SOC
@@ -200,6 +202,7 @@ config DRM_TOSHIBA_TC358767
        tristate "Toshiba TC358767 eDP bridge"
        depends on OF
        select DRM_KMS_HELPER
+       select DRM_MIPI_DSI
        select REGMAP_I2C
        select DRM_PANEL
        help


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