This patch series splits the fbdev core support in two different Kconfig symbols: FB and FB_CORE. The motivation for this is to allow CONFIG_FB to be disabled, while still having the the core fbdev support needed for the CONFIG_DRM_FBDEV_EMULATION to be enabled. The motivation is automatically disabling all fbdev drivers instead of having to be disabled individually. The reason for doing this is that now with simpledrm, there's no need for the legacy fbdev (e.g: efifb or vesafb) drivers anymore and many distros now disable them. But it would simplify the config a lot fo have a single Kconfig symbol to disable all fbdev drivers. I've built tested with possible combinations of CONFIG_FB, CONFIG_FB_CORE, CONFIG_DRM_FBDEV_EMULATION and CONFIG_FB_DEVICE symbols set to 'y' or 'n'. Patch #1 is just a cleanup for the DRM symbol prompt and help texts, patch DRM symbol to select FB_CORE if CONFIG_DRM_FBDEV_EMULATION was enabled. This is a v3 of the patch-set that addresses issues pointed out by Arnd Bergmann, Thomas Zimmermann and Geert Uytterhoeven in the previous v2: https://lists.freedesktop.org/archives/dri-devel/2023-July/411660.html Changes in v3: - Really make a hidden symbol by removing the prompt (Arnd Bergmann). - Change FB_CORE to config instead of menuconfig (Arnd Bergmann). - Keep "depends on FB" for FIRMWARE_EDID (Arnd Bergmann). - Compile out fb_backlight.o and fbmon.o that are only needed for FB (Arnd Bergmann). - Make FB_DEVICE to depend on FB_CORE instead of selecting it. - Make the DRM symbol to select FB_CORE if DRM_FBDEV_EMULATION is enabled (Arnd Bergmann). - Also make DRM select FB_SYS_HELPERS_DEFERRED if DRM_FBDEV_EMULATION - Make DRM_FBDEV_EMULATION to depend on DRM instead of DRM_KMS_HELPER. Changes in v2: - Keep "depends on FB" for FB_DDC, FB_HECUBA, FB_SVGALIB, FB_MACMODES, FB_BACKLIGHT, FB_MODE_HELPERS and FB_TILEBLITTING (Arnd Bergmann). - Don't change the fb.o object name (Arnd Bergmann). - Make FB_CORE a non-visible Kconfig symbol instead (Thomas Zimmermann). - Make CONFIG_DRM_FBDEV_EMULATION to select FB_CORE (Thomas Zimmermann). Javier Martinez Canillas (3): drm: Improve Kconfig symbol prompt and help texts fbdev: Split frame buffer support in FB and FB_CORE symbols drm: Make FB_CORE to be selected if DRM fbdev emulation is enabled arch/x86/Makefile | 2 +- arch/x86/video/Makefile | 2 +- drivers/gpu/drm/Kconfig | 29 ++++++++++++---------- drivers/video/console/Kconfig | 2 +- drivers/video/fbdev/Kconfig | 40 +++++++++++++++++++------------ drivers/video/fbdev/core/Makefile | 8 +++---- 6 files changed, 49 insertions(+), 34 deletions(-) -- 2.41.0
