video: auo_k190x: add driver for AUO-K1901 variant

This controller not only supports higher resolutions than the K1900
but concurrent updates as well. This results in a generally higher
display speed.

Signed-off-by: Heiko Stübner <heiko@sntech.de>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 9ad0753..0217f74 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -2407,6 +2407,14 @@
 	  This controller can drive Sipix epaper displays but can only do
 	  serial updates, reducing the number of possible frames per second.
 
+config FB_AUO_K1901
+	tristate "AUO-K1901 EPD controller support"
+	depends on FB && FB_AUO_K190X
+	help
+	  This driver implements support for the AUO K1901 epd-controller.
+	  This controller can drive Sipix epaper displays and supports
+	  concurrent updates, making higher frames per second possible.
+
 config FB_JZ4740
 	tristate "JZ4740 LCD framebuffer support"
 	depends on FB && MACH_JZ4740