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authorGeert Uytterhoeven <geert@linux-m68k.org>2021-10-19 17:45:19 +0300
committerMiguel Ojeda <ojeda@kernel.org>2021-10-22 00:36:30 +0300
commitc223d9c636ed55ba8abaa94be329f92fe43d522d (patch)
tree2ce19496ef04f6e4f51778da36a80f2e992d723e /drivers/auxdisplay/Kconfig
parent2904c01428e7e372bcfa4723a891669b2c55f1fb (diff)
downloadlinux-c223d9c636ed55ba8abaa94be329f92fe43d522d.tar.xz
auxdisplay: ht16k33: Add LED support
Instantiate a single LED based on the "led" subnode in DT. This allows the user to control display brightness and blinking (backed by hardware support) through the LED class API and triggers, and exposes the display color. The LED will be named "auxdisplay:<color>:<function>". When running in dot-matrix mode and if no "led" subnode is found, the driver falls back to the traditional backlight mode, to preserve backwards compatibility. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Marek BehĂșn <kabel@kernel.org> Reviewed-by: Robin van der Gracht <robin@protonic.nl> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Diffstat (limited to 'drivers/auxdisplay/Kconfig')
-rw-r--r--drivers/auxdisplay/Kconfig2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/auxdisplay/Kconfig b/drivers/auxdisplay/Kconfig
index 42fc7b155de0..e32ef7f9945d 100644
--- a/drivers/auxdisplay/Kconfig
+++ b/drivers/auxdisplay/Kconfig
@@ -176,6 +176,8 @@ config HT16K33
select FB_SYS_IMAGEBLIT
select INPUT_MATRIXKMAP
select FB_BACKLIGHT
+ select NEW_LEDS
+ select LEDS_CLASS
select LINEDISP
help
Say yes here to add support for Holtek HT16K33, RAM mapping 16*8