input: touchscreen: Add Goodix touchscreen support

Goodix GT9xx series touch controller

Required properties:

 - compatible		: Should be "goodix,gt9xx"

 - reg			: I2C slave address of the device.

 - interrupt-parent	: Parent of interrupt.

 - interrupts		: Configuration of touch panel controller interrupt

				GPIO.

 - goodix,product-id	: Product identification of the controller.

 - interrupt-gpios	: Interrupt gpio which is to provide interrupts to

				host, same as "interrupts" node.

 - reset-gpios		: Reset gpio to control the reset of chip.

 - goodix,display-coords	: Display coordinates in pixels. It is a four

				tuple consisting of min x, min y, max x and

				max y values.

Optional properties:

 - avdd-supply		: Power supply needed to power up the device, this is

				for fixed voltage external regulator.

 - vdd-supply		: Power supply needed to power up the device, when use

				external regulator, do not add this property.

 - vcc-i2c-supply	: Power source required to power up i2c bus.

				GT9xx series can provide 1.8V from internal

				LDO, add this properties base on hardware

				design.

 - goodix,panel-coords	: Panel coordinates for the chip in pixels.

				It is a four tuple consisting of min x,

				min y, max x and max y values.

 - goodix,i2c-pull-up	: To specify pull up is required.

 - goodix,force-update	: To specify force update is allowed.

 - goodix,enable-power-off	: Power off touchscreen during suspend.

 - goodix,button-map	: Button map of key codes. The number of key codes

				depend on panel.

 - goodix,cfg-data0	: Touch screen controller config data group 0. Ask vendor

				to provide that.

				Driver supports maximum six config groups. If more than one

				groups are defined, driver will select config group depending

				on hardware configuration. If only config group 0 is defined,

				it will be used for all hardware configurations.

				Touch screen controller will use its onchip default config data

				if this property is not present.

 - goodix,cfg-data1	: Touch screen controller config data group 1. Ask vendor

				to provide that.

 - goodix,cfg-data2	: Touch screen controller config data group 2. Ask vendor

				to provide that.

 - goodix,cfg-data3	: Touch screen controller config data group 3. Ask vendor

				to provide that.

 - goodix,cfg-data4	: Touch screen controller config data group 4. Ask vendor

				to provide that.

 - goodix,cfg-data5	: Touch screen controller config data group 5. Ask vendor

				to provide that.

 - goodix,fw-name	: Touch screen controller firmware file name.

 - goodix,slide-wakeup	: To specify slide-wakeup property is enabled or not.

 - goodix,dbl-clk-wakeup	: To specify dbl-clk-wakeup property is enabled or not.

 - goodix,change-x2y	: To specify change-x2y property is enabled or not.

 - goodix,driver-send-cfg	: To specify driver-send-cfg property is enabled or not.

 - goodix,have-touch-key	: To specify have-touch-key property is enabled or not.

 - goodix,with-pen	: To specify with-pen property is enabled or not.

Example:

i2c@f9927000 {

		goodix@5d {

			compatible = "goodix,gt9xx";

			reg = <0x5d>;

			interrupt-parent = <&msmgpio>;

			interrupts = <17 0x2008>;

			reset-gpios = <&msmgpio 16 0x00>;

			interrupt-gpios = <&msmgpio 17 0x00>;

			avdd-supply = <&tp_power>;

			goodix,panel-coords = <0 0 720 1200>;

			goodix,display-coords = <0 0 720 1080>;

			goodix,button-map= <158 102 139>;

			goodix,product-id = "915";

			goodix,cfg-data0 = [

				41 D0 02 00 05 0A 05 01 01 08

				12 58 50 41 03 05 00 00 00 00

				00 00 00 00 00 00 00 8C 2E 0E

				28 24 73 13 00 00 00 83 03 1D

				40 02 00 00 00 03 64 32 00 00

				00 1A 38 94 C0 02 00 00 00 04

				9E 1C 00 8D 20 00 7A 26 00 6D

				2C 00 60 34 00 60 10 38 68 00

				F0 50 35 FF FF 27 00 00 00 00

				00 01 1B 14 0C 14 00 00 01 00

				00 00 00 00 00 00 00 00 00 00

				00 00 02 04 06 08 0A 0C 0E 10

				12 14 16 18 1A 1C FF FF FF FF

				FF FF FF FF FF FF FF FF FF FF

				FF FF 00 02 04 06 08 0A 0C 0F

				10 12 13 14 16 18 1C 1D 1E 1F

				20 21 22 24 26 28 29 2A FF FF

				FF FF FF FF FF FF FF 22 22 22

				22 22 22 FF 07 01];

			goodix,fw_name = "gtp_fw.bin";

			goodix,have-touch-key;

			goodix,driver-send-cfg;

		};

};

	  If unsure, say N.

config TOUCHSCREEN_GT9XX_v28

	bool "Goodix touchpanel GT9xx_v28 series"

	depends on I2C

	help

	  Say Y here if you have a Goodix GT9xx_v28 touchscreen.

	  Gt9xx controllers are multi touch controllers which can

	  report 5 touches at a time.

          If unsure, say N.

source "drivers/input/touchscreen/gt9xx_v2.8/Kconfig"

config TOUCHSCREEN_HIMAX_CHIPSET

	bool "Himax touchpanel CHIPSET"

	depends on I2C

obj-$(CONFIG_TOUCHSCREEN_ROHM_BU21023)	+= rohm_bu21023.o

obj-$(CONFIG_TOUCHSCREEN_FTS)		+= focaltech_touch/

obj-$(CONFIG_TOUCHSCREEN_HIMAX_CHIPSET)	+= hxchipset/

obj-$(CONFIG_TOUCHSCREEN_GT9XX_v28)		+= gt9xx_v2.8/

 No newline at end of file

#

# Goodix GT9xx Touchscreen driver

#

config TOUCHSCREEN_GT9XX_v28

	bool "Goodix touchpanel GT9xx series"

	depends on I2C

	help

	  Enable this for support Goodix GT9xx_v28 driver.

	  Say Y here if you have a Goodix GT9xx touchscreen

	  controller.

          If unsure, say N.

config TOUCHSCREEN_GT9XX_UPDATE

	tristate "Goodix GT9xx touch controller auto update support"

	depends on TOUCHSCREEN_GT9XX_v28

	help

	  Enable this for support firmware update.

	  Say Y here if you want update touch controller

	  firmware.

	  If unsure, say N.

config TOUCHSCREEN_GT9XX_TOOL

	tristate "Goodix GT9xx Tools for debuging"

	depends on TOUCHSCREEN_GT9XX_v28

	help

	  This implement interface support for Goodix GT9xx

	  touchscreen debug.

	  Say Y here if you want to have a Android app debug interface

	  to your system.

	  If unsure, say N.

#

# Makefile for the Goodix gt9xx touchscreen driver.

#

#subdir-ccflags-y += -DDEBUG

obj-$(CONFIG_TOUCHSCREEN_GT9XX_v28)	+= gt9xx.o

obj-$(CONFIG_TOUCHSCREEN_GT9XX_UPDATE)	+= gt9xx_update.o

obj-$(CONFIG_TOUCHSCREEN_GT9XX_TOOL)	+= goodix_tool.o