Re: Build failure: shmobile drm driver references backlight symbols

Hi Russell,

On Tuesday 29 October 2013 10:04:13 Russell King - ARM Linux wrote:

My build system picked up on this failure:

drivers/built-in.o: In function `shmob_drm_backlight_init': fmc-chardev.c:(.text+0x9f2d0): undefined reference to `backlight_device_register' drivers/built-in.o: In function `shmob_drm_backlight_exit': fmc-chardev.c:(.text+0x9f370): undefined reference to `backlight_device_unregister'

which is cuased by drivers/gpu/drm/shmobile/shmob_drm_backlight.c being built without the backlight dependency being enabled. It looks like the backlight dependency is a hard requirement, so needs ot be added to the Kconfig entry for this driver in some way.

Thank you for the report. I'll send a fix.