Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 66aee900 authored by Scott Liu's avatar Scott Liu Committed by Dmitry Torokhov
Browse files

Input: add support for Elan eKTH I2C touchscreens 



This driver supports Elan eKTH I2C touchscreen controllers. Note that these
are using custom protocol, as opposed to other Elan parts that use
HID-over-I2C and are supported by the standard HID-multitouch driver.

Signed-off-by: default avatarScott Liu <scott.liu@emc.com.tw>
Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
parent af906faa

Documentation/devicetree/bindings/input/elants_i2c.txt

0 → 100644
+33 −0
Original line number Diff line number Diff line 
Elantech I2C Touchscreen



Required properties:

- compatible: must be "elan,ekth3500".

- reg: I2C address of the chip.

- interrupt-parent: a phandle for the interrupt controller (see interrupt

  binding[0]).

- interrupts: interrupt to which the chip is connected (see interrupt

  binding[0]).



Optional properties:

- wakeup-source: touchscreen can be used as a wakeup source.

- pinctrl-names: should be "default" (see pinctrl binding [1]).

- pinctrl-0: a phandle pointing to the pin settings for the device (see

  pinctrl binding [1]).



[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt

[1]: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt



Example:

	&i2c1 {

		/* ... */



		touchscreen@10 {

			compatible = "elan,ekth3500";

			reg = <0x10>;

			interrupt-parent = <&gpio4>;

			interrupts = <0x0 IRQ_TYPE_EDGE_FALLING>;

			wakeup-source;

		};



		/* ... */

	};

drivers/input/touchscreen/Kconfig

+12 −0
Original line number Diff line number Diff line
@@ -347,6 +347,18 @@ config TOUCHSCREEN_GUNZE 
	  To compile this driver as a module, choose M here: the

	  module will be called gunze.



config TOUCHSCREEN_ELAN

	tristate "Elan eKTH I2C touchscreen"

	depends on I2C

	help

	  Say Y here if you have an Elan eKTH I2C touchscreen

	  connected to your system.



	  If unsure, say N.



	  To compile this driver as a module, choose M here: the

	  module will be called elants_i2c.



config TOUCHSCREEN_ELO

	tristate "Elo serial touchscreens"

	select SERIO

drivers/input/touchscreen/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -31,6 +31,7 @@ obj-$(CONFIG_TOUCHSCREEN_EDT_FT5X06) += edt-ft5x06.o 
obj-$(CONFIG_TOUCHSCREEN_HAMPSHIRE)	+= hampshire.o

obj-$(CONFIG_TOUCHSCREEN_GUNZE)		+= gunze.o

obj-$(CONFIG_TOUCHSCREEN_EETI)		+= eeti_ts.o

obj-$(CONFIG_TOUCHSCREEN_ELAN)		+= elants_i2c.o

obj-$(CONFIG_TOUCHSCREEN_ELO)		+= elo.o

obj-$(CONFIG_TOUCHSCREEN_EGALAX)	+= egalax_ts.o

obj-$(CONFIG_TOUCHSCREEN_FUJITSU)	+= fujitsu_ts.o

drivers/input/touchscreen/elants_i2c.c

0 → 100644
+1271 −0

File added.

Preview size limit exceeded, changes collapsed.