The simple panel code uses the backlight interface to find a device, which fails when backlight is disabled: drivers/built-in.o: In function `panel_simple_platform_probe': :(.text+0xd3c48): undefined reference to `of_find_backlight_by_node' 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 84506053a7ca..d84583776d50 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -10,6 +10,7 @@ menu "Display Panels" config DRM_PANEL_SIMPLE tristate "support for simple panels" depends on OF + depends on BACKLIGHT_CLASS_DEVICE help DRM panel driver for dumb panels that need at most a regulator and a GPIO to be powered up. Optionally a backlight can be attached so -- 2.1.0.rc2 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
