The new S6E3HA2 driver fails to link when backlight is disabled:
ERROR: "backlight_device_register" [drivers/gpu/drm/panel/panel-samsung-s6e3ha2.ko] undefined!
ERROR: "backlight_device_unregister" [drivers/gpu/drm/panel/panel-samsung-s6e3ha2.ko] undefined!
This adds a Kconfig dependency like we have it for some other panel drivers.
Fixes: ed29f9426d9b ("drm/panel: Add support for S6E3HA2 panel driver on TM2 board")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
drivers/gpu/drm/panel/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index 3e29a9903303..6eb9774284df 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -66,6 +66,7 @@ config DRM_PANEL_SAMSUNG_S6E3HA2
tristate "Samsung S6E3HA2 DSI video mode panel"
depends on OF
depends on DRM_MIPI_DSI
+ depends on BACKLIGHT_CLASS_DEVICE
select VIDEOMODE_HELPERS
config DRM_PANEL_SAMSUNG_S6E8AA0
--
2.9.0
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