[xlnx:master 1273/1520] warning: (DRM_RADEON && ..) selects BACKLIGHT_CLASS_DEVICE which has unmet direct dependencies (HAS_IOMEM && ..)

[kbuild test robot]

tree:   https://github.com/Xilinx/linux-xlnx master
head:   ef99b59d41d9546fe561e61fb7a489c83a544a2f
commit: 4d08c576e74d1f07fbfd2a0be564fc3b59fe2e99 [1273/1520] drm: xlnx: dsi: Adding dsi driver to new framework
config: x86_64-randconfig-x001-201810 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
        git checkout 4d08c576e74d1f07fbfd2a0be564fc3b59fe2e99
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

warning: (DRM_RADEON && DRM_AMDGPU && DRM_NOUVEAU && DRM_I915 && DRM_GMA500 && DRM_SHMOBILE && DRM_TILCDC && DRM_FSL_DCU && DRM_TINYDRM && DRM_XLNX_DSI && DRM_PARADE_PS8622 && FB_BACKLIGHT && FB_ARMCLCD && FB_MX3 && USB_APPLEDISPLAY && FB_OLPC_DCON && ACPI_CMPC && SAMSUNG_Q10) selects BACKLIGHT_CLASS_DEVICE which has unmet direct dependencies (HAS_IOMEM && BACKLIGHT_LCD_SUPPORT)

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0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation
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