[PATCH] auxdisplay: ht16k33: select required CONFIG_FB_CFB_* helpers

[Robin van der Gracht]

This selects the respective helpers required in addition to the one
Arnd Bergmann pointer out earlier.

Signed-off-by: Robin van der Gracht <robin@xxxxxxxxxxx>
---
This is a responce to https://lkml.org/lkml/2016/11/25/66
This patch complements the changes Arnd submitted earlier. 

 drivers/auxdisplay/Kconfig | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/auxdisplay/Kconfig b/drivers/auxdisplay/Kconfig
index b8bbfc6..4ef4c5c 100644
--- a/drivers/auxdisplay/Kconfig
+++ b/drivers/auxdisplay/Kconfig
@@ -132,6 +132,9 @@ config HT16K33
 	tristate "Holtek Ht16K33 LED controller with keyscan"
 	depends on FB && OF && I2C && INPUT
 	select FB_SYS_FOPS
+	select FB_CFB_FILLRECT
+	select FB_CFB_COPYAREA
+	select FB_CFB_IMAGEBLIT
 	select INPUT_MATRIXKMAP
 	select FB_BACKLIGHT
 	help
-- 
2.7.4