The backlight code currently uses fbdev's FB_BLANK_ constants to represent power states UNBLANK and POWERDOWN. Introduce dedicated backlight constants to remove this dependency on fbdev.
Patch 1 introduces BACKLIGHT_POWER_ON and BACKLIGHT_POWER_OFF, which replace constants from fbdev. There's also BACKLIGHT_POWER_REDUCED, which is required by a few drivers that appear to use incorrect or uncommon blanking semantics. The rest of the patchset converts backlight drivers. The new constants' values are identical to the old ones, so the driver conversion can be done one-by-one. There are many more backlight drivers in other subsystems. These can later be converted when the new constants have been merged. Once merged, several include statements for <linux/fb.h> can be removed (specifically under drivers/platform/x86/). This patchset is part of a larger effort to implement the backlight code without depending on fbdev and ultimatively remove fbdev dependencies from the kernel. v2: - rename BL_CORE_ power constants to BACKLIGHT_POWER_ (Sam) - fix documentation Thomas Zimmermann (17): backlight: Add BACKLIGHT_POWER_ constants for power states backlight: aat2870-backlight: Use blacklight power constants backlight: ams369fb06: Use backlight power constants backlight: corgi-lcd: Use backlight power constants backlight: gpio-backlight: Use backlight power constants backlight: ipaq-micro-backlight: Use backlight power constants backlight: journada_bl: Use backlight power constants backlight: kb3886-bl: Use backlight power constants backlight: ktd253-backlight: Use backlight power constants backlight: led-backlight: Use backlight power constants backlight: lm3533-backlight: Use backlight power constants backlight: mp3309c: Use backlight power constants backlight: pandora-backlight: Use backlight power constants backlight: pcf50633-backlight: Use backlight power constants backlight: pwm-backlight: Use backlight power constants backlight: rave-sp-backlight: Use backlight power constants backlight: sky81452-backlight: Use backlight power constants .../ABI/stable/sysfs-class-backlight | 7 +++--- drivers/video/backlight/aat2870_bl.c | 4 ++-- drivers/video/backlight/ams369fg06.c | 23 +++++++++---------- drivers/video/backlight/corgi_lcd.c | 4 ++-- drivers/video/backlight/gpio_backlight.c | 9 ++++---- drivers/video/backlight/ipaq_micro_bl.c | 3 +-- drivers/video/backlight/jornada720_bl.c | 3 +-- drivers/video/backlight/kb3886_bl.c | 4 ++-- drivers/video/backlight/ktd253-backlight.c | 5 ++-- drivers/video/backlight/led_bl.c | 4 ++-- drivers/video/backlight/lm3533_bl.c | 3 +-- drivers/video/backlight/mp3309c.c | 4 ++-- drivers/video/backlight/pandora_bl.c | 3 +-- drivers/video/backlight/pcf50633-backlight.c | 5 ++-- drivers/video/backlight/pwm_bl.c | 4 ++-- drivers/video/backlight/rave-sp-backlight.c | 2 +- drivers/video/backlight/sky81452-backlight.c | 2 +- include/linux/backlight.h | 20 +++++++++------- 18 files changed, 53 insertions(+), 56 deletions(-) -- 2.45.2
