From: Arnd Bergmann <arnd@xxxxxxxx>
The newly added driver uses the backlight subsystem but is missing the
corresponding Kconfig dependency:
arm-linux-gnueabi-ld: drivers/gpu/drm/panel/panel-visionox-vtdr6130.o: in function `visionox_vtdr6130_probe':
panel-visionox-vtdr6130.c:(.text+0xdee): undefined reference to `devm_backlight_device_register'
Fixes: 65dc9360f741 ("drm: panel: Add Himax HX8394 panel controller driver")
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 dd79928f5482..8f2046caaa6b 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -742,6 +742,7 @@ config DRM_PANEL_VISIONOX_VTDR6130
tristate "Visionox VTDR6130"
depends on OF
depends on DRM_MIPI_DSI
+ depends on BACKLIGHT_CLASS_DEVICE
help
Say Y here if you want to enable support for Visionox
VTDR6130 1080x2400 AMOLED DSI panel.
--
2.39.0
