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 <csmanjuvi...@gmail.com>
Cc: David Airlie <airl...@linux.ie>
Cc: Laurent Pinchart <laurent.pinchart+rene...@ideasonboard.com>
Cc: Sascha Hauer <s.ha...@pengutronix.de>
Cc: dri-de...@lists.freedesktop.org
Cc: linux-kernel@vger.kernel.org
---
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
select DRM_KMS_HELPER
select DRM_KMS_CMA_HELPER
select DRM_GEM_CMA_HELPER
--
1.7.9.5
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