auxdisplay: charlcd: add help text for backlight initial state

While the individual CHARLCD_BL_xxx options have help texts, the
menu itself does not.  Fix this.

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Mans Rullgard <mans@mansr.com>
[Added a bit more text to address Linus' suggestion]
Signed-off-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>

diff --git a/drivers/auxdisplay/Kconfig b/drivers/auxdisplay/Kconfig
index dd61fdd..68489d1 100644 (file)
--- a/drivers/auxdisplay/Kconfig
+++ b/drivers/auxdisplay/Kconfig
@@ -448,6 +448,11 @@ config PANEL_BOOT_MESSAGE
 choice
        prompt "Backlight initial state"
        default CHARLCD_BL_FLASH
+       ---help---
+         Select the initial backlight state on boot or module load.
+
+         Previously, there was no option for this: the backlight flashed
+         briefly on init. Now you can also turn it off/on.
 
        config CHARLCD_BL_OFF
                bool "Off"