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 <a...@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 48efa7a047f3..f5751b5b0e88 100644
--- a/drivers/auxdisplay/Kconfig
+++ b/drivers/auxdisplay/Kconfig
@@ -144,6 +144,7 @@ config IMG_ASCII_LCD
config HT16K33
tristate "Holtek Ht16K33 LED controller with keyscan"
depends on FB && OF && 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 cbd46c1c5bf7..a1c6677c7043 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 bcf7834dbdbf..47e1b65276f4 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
@@ -861,6 +861,7 @@ 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
@@ -914,6 +915,7 @@ 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.
@@ -961,6 +963,7 @@ 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.
@@ -1232,6 +1235,7 @@ 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.
@@ -1263,6 +1267,7 @@ 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.
@@ -1312,6 +1317,7 @@ 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
@@ -1855,6 +1861,7 @@ 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
@@ -2183,7 +2190,7 @@ 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
@@ -2250,6 +2257,7 @@ config FB_SSD1307
depends on FB && I2C
depends on OF
depends on GPIOLIB || COMPILE_TEST
+ depends on BACKLIGHT_CLASS_DEVICE
select FB_SYS_FOPS
select FB_SYS_FILLRECT
select FB_SYS_COPYAREA
--
2.26.0
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