Like many other panel drivers, this one fails to build
when backlight support is disabled:

drivers/gpu/drm/panel/panel-raydium-rm68200.o: In function `rm68200_probe':
panel-raydium-rm68200.c:(.text+0x14a): undefined reference to 

This adds the appropriate dependency.

Fixes: 2b7ed18bed1a ("drm/panel: Add support for Raydium RM68200 panel driver")
Signed-off-by: Arnd Bergmann <>
 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 077bc58c1913..25682ff3449a 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -112,6 +112,7 @@ config DRM_PANEL_RAYDIUM_RM68200
        tristate "Raydium RM68200 720x1280 DSI video mode panel"
        depends on OF
        depends on DRM_MIPI_DSI
+       depends on BACKLIGHT_CLASS_DEVICE
          Say Y here if you want to enable support for Raydium RM68200
          720x1280 DSI video mode panel.

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