Hi Majunath, Thank you for the patch. On Tuesday 08 October 2013 16:09:17 Majunath Goudar wrote: > This patch adds a BACKLIGHT_CLASS_DEVICE dependency to configure the > DRM_SHMOBILE. Without this patch, build system can lead to build failure. > This was observed during randconfig testing, in which DRM_SHMOBILE was > enabled w/o BACKLIGHT_CLASS_DEVICE being enabled. Following was the error: > > Building modules, stage 2. > MODPOST 516 modules > ERROR: "backlight_device_register" [drivers/gpu/drm/shmobile/shmob-drm.ko] > undefined! ERROR: "backlight_device_unregister" > [drivers/gpu/drm/shmobile/shmob-drm.ko] undefined! make[1]: *** [__modpost] > Error 1 > make: *** [modules] Error 2 > > Signed-off-by: Manjunath Goudar <csmanjuvijay@xxxxxxxxx> > Cc: David Airlie <airlied@xxxxxxxx> > Cc: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx> > Cc: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> > Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx > Cc: linux-kernel@xxxxxxxxxxxxxxx > --- > drivers/gpu/drm/shmobile/Kconfig | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/shmobile/Kconfig > b/drivers/gpu/drm/shmobile/Kconfig index ca498d1..eaf822e 100644 > --- a/drivers/gpu/drm/shmobile/Kconfig > +++ b/drivers/gpu/drm/shmobile/Kconfig > @@ -1,6 +1,6 @@ > config DRM_SHMOBILE > tristate "DRM Support for SH Mobile" > - depends on DRM && (ARM || SUPERH) > + depends on DRM && (ARM || SUPERH) && BACKLIGHT_CLASS_DEVICE What about select BACKLIGHT_CLASS_DEVICE instead ? That's what the i915, radeon, gma500, tilcdc and nouveau drivers do. > select DRM_KMS_HELPER > select DRM_KMS_CMA_HELPER > select DRM_GEM_CMA_HELPER -- Regards, Laurent Pinchart _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel