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55bffc8170
Currently the CONFIG_FB option has to be enabled even if no legacy fbdev drivers are needed (e.g: only to have support for framebuffer consoles). The DRM subsystem has a fbdev emulation layer, but depends on CONFIG_FB and so it can only be enabled if that dependency is enabled as well. That means fbdev drivers have to be explicitly disabled if users want to enable CONFIG_FB, only to use fbcon and/or the DRM fbdev emulation layer. This patch introduces a non-visible CONFIG_FB_CORE symbol that could be enabled just to have core support needed for CONFIG_DRM_FBDEV_EMULATION, allowing CONFIG_FB to be disabled (and automatically disabling all the fbdev drivers). Nothing from fb_backlight.o and fbmon.o is used by the DRM fbdev emulation layer so these two objects can be compiled out when CONFIG_FB is disabled. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Tested-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Helge Deller <deller@gmx.de> Link: https://patchwork.freedesktop.org/patch/msgid/20230719081544.741051-4-javierm@redhat.com
35 lines
1.3 KiB
Makefile
35 lines
1.3 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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obj-$(CONFIG_FB_NOTIFY) += fb_notify.o
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obj-$(CONFIG_FB_CORE) += fb.o
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fb-y := fb_info.o \
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fbmem.o fbcmap.o \
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modedb.o fbcvt.o fb_cmdline.o fb_io_fops.o
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ifdef CONFIG_FB
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fb-y += fb_backlight.o fbmon.o
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endif
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fb-$(CONFIG_FB_DEFERRED_IO) += fb_defio.o
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fb-$(CONFIG_FB_DEVICE) += fb_chrdev.o \
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fb_procfs.o \
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fbsysfs.o
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ifeq ($(CONFIG_FRAMEBUFFER_CONSOLE),y)
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fb-y += fbcon.o bitblit.o softcursor.o
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ifeq ($(CONFIG_FB_TILEBLITTING),y)
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fb-y += tileblit.o
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endif
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ifeq ($(CONFIG_FRAMEBUFFER_CONSOLE_ROTATION),y)
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fb-y += fbcon_rotate.o fbcon_cw.o fbcon_ud.o \
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fbcon_ccw.o
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endif
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endif
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obj-$(CONFIG_FB_CFB_FILLRECT) += cfbfillrect.o
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obj-$(CONFIG_FB_CFB_COPYAREA) += cfbcopyarea.o
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obj-$(CONFIG_FB_CFB_IMAGEBLIT) += cfbimgblt.o
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obj-$(CONFIG_FB_SYS_FILLRECT) += sysfillrect.o
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obj-$(CONFIG_FB_SYS_COPYAREA) += syscopyarea.o
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obj-$(CONFIG_FB_SYS_IMAGEBLIT) += sysimgblt.o
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obj-$(CONFIG_FB_SYS_FOPS) += fb_sys_fops.o
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obj-$(CONFIG_FB_SVGALIB) += svgalib.o
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obj-$(CONFIG_FB_DDC) += fb_ddc.o
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