Input: add driver for the Hycon HY46XX touchpanel series

This patch adds support for Hycon HY46XX.

Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Link: https://lore.kernel.org/r/20210413144446.2277817-4-giulio.benetti@benettiengineering.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

MAINTAINERS

@@ -8249,6 +8249,7 @@ M:	Giulio Benetti <giulio.benetti@benettiengineering.com>
 L:	linux-input@vger.kernel.org
 S:	Maintained
 F:	Documentation/devicetree/bindings/input/touchscreen/hycon,hy46xx.yaml
+F:	drivers/input/touchscreen/hy46xx.c
 
 HYGON PROCESSOR SUPPORT
 M:	Pu Wen <puwen@hygon.cn>

drivers/input/touchscreen/Kconfig

@@ -411,6 +411,17 @@ config TOUCHSCREEN_HIDEEP
 	  To compile this driver as a module, choose M here : the
 	  module will be called hideep_ts.
 
+config TOUCHSCREEN_HYCON_HY46XX
+	tristate "Hycon hy46xx touchscreen support"
+	depends on I2C
+	help
+	  Say Y here if you have a touchscreen using Hycon hy46xx
+
+	  If unsure, say N.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called hycon-hy46xx.
+
 config TOUCHSCREEN_ILI210X
 	tristate "Ilitek ILI210X based touchscreen"
 	depends on I2C

drivers/input/touchscreen/Makefile

@@ -34,6 +34,7 @@ obj-$(CONFIG_TOUCHSCREEN_DA9052)	+= da9052_tsi.o
 obj-$(CONFIG_TOUCHSCREEN_DYNAPRO)	+= dynapro.o
 obj-$(CONFIG_TOUCHSCREEN_EDT_FT5X06)	+= edt-ft5x06.o
 obj-$(CONFIG_TOUCHSCREEN_HAMPSHIRE)	+= hampshire.o
+obj-$(CONFIG_TOUCHSCREEN_HYCON_HY46XX)	+= hycon-hy46xx.o
 obj-$(CONFIG_TOUCHSCREEN_GUNZE)		+= gunze.o
 obj-$(CONFIG_TOUCHSCREEN_EETI)		+= eeti_ts.o
 obj-$(CONFIG_TOUCHSCREEN_EKTF2127)	+= ektf2127.o