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SubjectRe: [PATCH 1/3] auxdisplay: deconfuse configuration
On Fri, Mar 1, 2019 at 7:48 PM Mans Rullgard <mans@mansr.com> wrote:
>
> The auxdisplay Kconfig is confusing. It creates two separate menus
> even though the settings are closely related. Moreover, the options
> for setting the boot message depend on CONFIG_PARPORT even though they
> are used by drivers that do not.
>
> Clear up the confustion by moving the "Parallel port LCD/Keypad" menu

"confustion" -> "confusion"

> under auxdisplay where it logically belongs. Change the boot message
> options to depend only on CONFIG_CHARLCD, making them accessible also
> when only the HD44780 is selected.
>
> Since the "Parallel port LCD/Keypad" driver now has a new dependency
> on CONFIG_AUXDISPLAY, rename its Kconfig symbol and keep the old one
> such that make oldconfig will not disable the driver.
>
> Signed-off-by: Mans Rullgard <mans@mansr.com>
> ---
> drivers/auxdisplay/Kconfig | 17 ++++++++++++-----
> drivers/auxdisplay/Makefile | 2 +-
> 2 files changed, 13 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/auxdisplay/Kconfig b/drivers/auxdisplay/Kconfig
> index 57410f9c5d44..7d3fe27d6868 100644
> --- a/drivers/auxdisplay/Kconfig
> +++ b/drivers/auxdisplay/Kconfig
> @@ -164,9 +164,7 @@ config ARM_CHARLCD
> line and the Linux version on the second line, but that's
> still useful.
>
> -endif # AUXDISPLAY
> -
> -menuconfig PANEL
> +menuconfig PARPORT_PANEL

Do we want the PARPORT_ prefix here but not on the suboptions?

Also, having PANEL_PARPORT and PARPORT_PANEL seems confusing...

> tristate "Parallel port LCD/Keypad Panel support"
> depends on PARPORT
> select CHARLCD
> @@ -178,7 +176,7 @@ menuconfig PANEL
> compiled as a module, or linked into the kernel and started at boot.
> If you don't understand what all this is about, say N.
>
> -if PANEL
> +if PARPORT_PANEL
>
> config PANEL_PARPORT
> int "Default parallel port number (0=LPT1)"
> @@ -419,8 +417,11 @@ config PANEL_LCD_PIN_BL
>
> Default for the 'BL' pin in custom profile is '0' (uncontrolled).
>
> +endif # PARPORT_PANEL
> +
> config PANEL_CHANGE_MESSAGE
> bool "Change LCD initialization message ?"
> + depends on CHARLCD
> default "n"
> ---help---
> This allows you to replace the boot message indicating the kernel version
> @@ -444,7 +445,13 @@ config PANEL_BOOT_MESSAGE
> An empty message will only clear the display at driver init time. Any other
> printf()-formatted message is valid with newline and escape codes.
>
> -endif # PANEL
> +endif # AUXDISPLAY
> +
> +config PANEL
> + tristate "Parallel port LCD/Keypad Panel support (OLD OPTION)"

Hm... what do you mean by "OLD OPTION"? Should we keep it? (I don't
see any other place using this marking).

> + depends on PARPORT
> + select AUXDISPLAY
> + select PARPORT_PANEL

I agree the menu was a bit convoluted and we didn't get to clean it.

Since you are touching the panel.c options, CC'ing the maintainers
(please do run get_maintainer.pl in that case!)

Cheers,
Miguel

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