2017-07-10 12:53 GMT+02:00 Noralf Trønnes <noralf@xxxxxxxxxxx>: > Hi > > DRM_STM is 'default y' on ARCH_MULTIPLATFORM and it selects > FB_PROVIDE_GET_FB_UNMAPPED_AREA. This breaks fbdev mmap for me on > Raspberry Pi. mmap returns -ENOMEM. > > Disabling DRM_STM gives me working mmap. > > Noralf. > > > config DRM_STM > tristate "DRM Support for STMicroelectronics SoC Series" > depends on DRM && (ARCH_STM32 || ARCH_MULTIPLATFORM) > select DRM_KMS_HELPER > select DRM_GEM_CMA_HELPER > select DRM_KMS_CMA_HELPER > select DRM_PANEL > select VIDEOMODE_HELPERS > select FB_PROVIDE_GET_FB_UNMAPPED_AREA I think to two solutions: - add "if !MMU" after FB_PROVIDE_GET_FB_UNMAPPED_AREA in this Kconfig but other drivers could do the same. - add !MMU when FB_PROVIDE_GET_FB_UNMAPPED_AREA is used in fbmen.c > default y > > help > Enable support for the on-chip display controller on > STMicroelectronics STM32 MCUs. > To compile this driver as a module, choose M here: the module > will be called stm-drm. > > > _______________________________________________ > dri-devel mailing list > dri-devel@xxxxxxxxxxxxxxxxxxxxx > https://lists.freedesktop.org/mailman/listinfo/dri-devel _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
