From: Arnd Bergmann arnd@arndb.de
Rather than having CONFIG_FB_BACKLIGHT select CONFIG_BACKLIGHT_CLASS_DEVICE, make any driver that needs it have a dependency on the class device being available, to prevent circular dependencies.
This is the same way that the backlight is already treated for the DRM subsystem.
Signed-off-by: Arnd Bergmann arnd@arndb.de --- drivers/auxdisplay/Kconfig | 1 + drivers/macintosh/Kconfig | 1 + drivers/staging/fbtft/Kconfig | 1 + drivers/staging/olpc_dcon/Kconfig | 2 +- drivers/video/fbdev/Kconfig | 14 +++++++++++--- 5 files changed, 15 insertions(+), 4 deletions(-)
diff --git a/drivers/auxdisplay/Kconfig b/drivers/auxdisplay/Kconfig index 64012cda4d12..356afb6a569d 100644 --- a/drivers/auxdisplay/Kconfig +++ b/drivers/auxdisplay/Kconfig @@ -170,6 +170,7 @@ config IMG_ASCII_LCD config HT16K33 tristate "Holtek Ht16K33 LED controller with keyscan" depends on FB && I2C && INPUT + depends on BACKLIGHT_CLASS_DEVICE select FB_SYS_FOPS select FB_SYS_FILLRECT select FB_SYS_COPYAREA diff --git a/drivers/macintosh/Kconfig b/drivers/macintosh/Kconfig index 5cdc361da37c..cb0fbdf8ff7f 100644 --- a/drivers/macintosh/Kconfig +++ b/drivers/macintosh/Kconfig @@ -113,6 +113,7 @@ config PMAC_MEDIABAY config PMAC_BACKLIGHT bool "Backlight control for LCD screens" depends on PPC_PMAC && ADB_PMU && FB = y && (BROKEN || !PPC64) + depends on BACKLIGHT_CLASS_DEVICE select FB_BACKLIGHT help Say Y here to enable Macintosh specific extensions of the generic diff --git a/drivers/staging/fbtft/Kconfig b/drivers/staging/fbtft/Kconfig index dad1ddcd7b0c..c4f2f01cd798 100644 --- a/drivers/staging/fbtft/Kconfig +++ b/drivers/staging/fbtft/Kconfig @@ -3,6 +3,7 @@ menuconfig FB_TFT tristate "Support for small TFT LCD display modules" depends on FB && SPI depends on GPIOLIB || COMPILE_TEST + depends on BACKLIGHT_CLASS_DEVICE select FB_SYS_FILLRECT select FB_SYS_COPYAREA select FB_SYS_IMAGEBLIT diff --git a/drivers/staging/olpc_dcon/Kconfig b/drivers/staging/olpc_dcon/Kconfig index d1a0dea09ef0..a9f36538d7ab 100644 --- a/drivers/staging/olpc_dcon/Kconfig +++ b/drivers/staging/olpc_dcon/Kconfig @@ -4,7 +4,7 @@ config FB_OLPC_DCON depends on OLPC && FB depends on I2C depends on GPIO_CS5535 && ACPI - select BACKLIGHT_CLASS_DEVICE + depends on BACKLIGHT_CLASS_DEVICE help In order to support very low power operation, the XO laptop uses a secondary Display CONtroller, or DCON. This secondary controller diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig index c187a93c9a16..3ad499433726 100644 --- a/drivers/video/fbdev/Kconfig +++ b/drivers/video/fbdev/Kconfig @@ -186,7 +186,7 @@ config FB_MACMODES config FB_BACKLIGHT tristate depends on FB - select BACKLIGHT_CLASS_DEVICE + depends on BACKLIGHT_CLASS_DEVICE
config FB_MODE_HELPERS bool "Enable Video Mode Handling Helpers" @@ -275,12 +275,12 @@ config FB_ARMCLCD tristate "ARM PrimeCell PL110 support" depends on ARM || ARM64 || COMPILE_TEST depends on FB && ARM_AMBA && HAS_IOMEM + depends on BACKLIGHT_CLASS_DEVICE || !OF select FB_CFB_FILLRECT select FB_CFB_COPYAREA select FB_CFB_IMAGEBLIT select FB_MODE_HELPERS if OF select VIDEOMODE_HELPERS if OF - select BACKLIGHT_CLASS_DEVICE if OF help This framebuffer device driver is for the ARM PrimeCell PL110 Colour LCD controller. ARM PrimeCells provide the building @@ -863,6 +863,7 @@ config FB_ATMEL tristate "AT91 LCD Controller support" depends on FB && OF && HAVE_CLK && HAS_IOMEM depends on HAVE_FB_ATMEL || COMPILE_TEST + depends on BACKLIGHT_CLASS_DEVICE select FB_BACKLIGHT select FB_CFB_FILLRECT select FB_CFB_COPYAREA @@ -916,6 +917,7 @@ config FB_NVIDIA_DEBUG config FB_NVIDIA_BACKLIGHT bool "Support for backlight control" depends on FB_NVIDIA + depends on BACKLIGHT_CLASS_DEVICE=y || BACKLIGHT_CLASS_DEVICE=FB_NVIDIA default y help Say Y here if you want to control the backlight of your display. @@ -963,6 +965,7 @@ config FB_RIVA_DEBUG config FB_RIVA_BACKLIGHT bool "Support for backlight control" depends on FB_RIVA + depends on BACKLIGHT_CLASS_DEVICE=y || BACKLIGHT_CLASS_DEVICE=FB_RIVA default y help Say Y here if you want to control the backlight of your display. @@ -1234,6 +1237,7 @@ config FB_RADEON_I2C config FB_RADEON_BACKLIGHT bool "Support for backlight control" depends on FB_RADEON + depends on BACKLIGHT_CLASS_DEVICE=y || BACKLIGHT_CLASS_DEVICE=FB_RADEON default y help Say Y here if you want to control the backlight of your display. @@ -1265,6 +1269,7 @@ config FB_ATY128 config FB_ATY128_BACKLIGHT bool "Support for backlight control" depends on FB_ATY128 + depends on BACKLIGHT_CLASS_DEVICE=y || BACKLIGHT_CLASS_DEVICE=FB_ATY128 default y help Say Y here if you want to control the backlight of your display. @@ -1314,6 +1319,7 @@ config FB_ATY_GX
config FB_ATY_BACKLIGHT bool "Support for backlight control" + depends on BACKLIGHT_CLASS_DEVICE=y || BACKLIGHT_CLASS_DEVICE=FB_ATY depends on FB_ATY default y help @@ -1838,6 +1844,7 @@ config FB_SH_MOBILE_LCDC tristate "SuperH Mobile LCDC framebuffer support" depends on FB && HAVE_CLK && HAS_IOMEM depends on SUPERH || ARCH_RENESAS || COMPILE_TEST + depends on BACKLIGHT_CLASS_DEVICE select FB_SYS_FILLRECT select FB_SYS_COPYAREA select FB_SYS_IMAGEBLIT @@ -2166,7 +2173,7 @@ config FB_PRE_INIT_FB config FB_MX3 tristate "MX3 Framebuffer support" depends on FB && MX3_IPU - select BACKLIGHT_CLASS_DEVICE + depends on BACKLIGHT_CLASS_DEVICE select FB_CFB_FILLRECT select FB_CFB_COPYAREA select FB_CFB_IMAGEBLIT @@ -2222,6 +2229,7 @@ config FB_SSD1307 tristate "Solomon SSD1307 framebuffer support" depends on FB && I2C depends on GPIOLIB || COMPILE_TEST + depends on BACKLIGHT_CLASS_DEVICE select FB_SYS_FOPS select FB_SYS_FILLRECT select FB_SYS_COPYAREA