On 12/06/2019 14:27, Marc Gonzalez wrote:
b20c5249aa6a ("backlight: Fix compile error if CONFIG_FB is unset")
added 'default m' for BACKLIGHT_CLASS_DEVICE and LCD_CLASS_DEVICE.
It took me some little while until I realized this patch is from 2005
which explains why I couldn't find it in the modern git repo!
Let's go back to not building support by default.
At first glance disabling this by default looks like it would cause some
existing defconfig files to disable useful drivers.
For backlight I think this isn't true (because both DRM and FB_BACKLIGHT
have a "select" on BACKLIGHT_CLASS_DEVICE).
However for LCD it is not nearly as clear cut. Commit message needs to
explain why this won't cause unacceptable problems for existinng
defconfig files.
Daniel.
Signed-off-by: Marc Gonzalez <[email protected]>
---
drivers/video/backlight/Kconfig | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index 8b081d61773e..40676be2e46a 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -10,7 +10,6 @@ menu "Backlight & LCD device support"
#
config LCD_CLASS_DEVICE
tristate "Lowlevel LCD controls"
- default m
help
This framework adds support for low-level control of LCD.
Some framebuffer devices connect to platform-specific LCD modules
@@ -143,7 +142,6 @@ endif # LCD_CLASS_DEVICE
#
config BACKLIGHT_CLASS_DEVICE
tristate "Lowlevel Backlight controls"
- default m
help
This framework adds support for low-level control of the LCD
backlight. This includes support for brightness and power.
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