Hi Alexander,
On Thu, Jan 17, 2019 at 2:39 PM Alexander Shiyan <shc_work@xxxxxxx> wrote:
> We have two *_CLASS_DEVICE kernel config options (LCD_CLASS_DEVICE
> and BACKLIGHT_LCD_DEVICE) that do the same job.
> The patch removes useless BACKLIGHT_LCD_SUPPORT option
> and converts LCD_CLASS_DEVICE into a menu.
>
> Signed-off-by: Alexander Shiyan <shc_work@xxxxxxx>
This is now commit 8c5dc8d9f19c7992 ("video: backlight: Remove useless
BACKLIGHT_LCD_SUPPORT kernel symbol").
> --- a/drivers/video/backlight/Kconfig
> +++ b/drivers/video/backlight/Kconfig
> @@ -2,13 +2,7 @@
> # Backlight & LCD drivers configuration
> #
>
> -menuconfig BACKLIGHT_LCD_SUPPORT
> - bool "Backlight & LCD device support"
> - help
> - Enable this to be able to choose the drivers for controlling the
> - backlight and the LCD panel on some platforms, for example on PDAs.
> -
> -if BACKLIGHT_LCD_SUPPORT
> +menu "Backlight & LCD device support"
>
> #
> # LCD
Below, we have:
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
in order to have a platform-specific way to control the flat panel
(contrast and applying power to the LCD (not to the backlight!)).
and:
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.
Hence running "make oldconfig" on a .config where
CONFIG_BACKLIGHT_LCD_SUPPORT was not set leads two to new
questions, where the answers default to "m".
Perhaps the "default m" statements should be removed?
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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