Macro (un)definition at include/linux/backlight.h, line 130 References: drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c, line 3134 drivers/gpu/drm/nouveau/nouveau_backlight.c, line 93 drivers/gpu/drm/nouveau/nouveau_backlight.c, line 146 drivers/gpu/drm/nouveau/nouveau_backlight.c, line 192 drivers/gpu/drm/shmobile/shmob_drm_backlight.c, line 40 drivers/platform/x86/apple-gmux.c, line 305 drivers/platform/x86/sony-laptop.c, line 1059 drivers/platform/x86/sony-laptop.c, line 1064 drivers/platform/x86/toshiba_acpi.c, line 1708 drivers/video/backlight/backlight.c, line 325 drivers/video/backlight/backlight.c, line 339 drivers/video/backlight/jornada720_bl.c, line 102 drivers/video/backlight/ktd253-backlight.c, line 104 drivers/video/backlight/lm3630a_bl.c, line 254 drivers/video/backlight/lm3630a_bl.c, line 331 drivers/video/backlight/lp855x_bl.c, line 279 drivers/video/backlight/tps65217_bl.c, line 105 drivers/video/fbdev/sh_mobile_lcdcfb.c, line 2151 drivers/video/fbdev/ssd1307fb.c, line 527