Commit 9a436d52 authored by Haibo Chen's avatar Haibo Chen Committed by Dmitry Torokhov

Input: touchscreen - add imx6ul_tsc driver support

Freescale i.MX6UL contains a internal touchscreen controller,
this patch add a driver to support this controller.
Signed-off-by: default avatarHaibo Chen <haibo.chen@freescale.com>
Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
parent 48ead50c
* Freescale i.MX6UL Touch Controller
Required properties:
- compatible: must be "fsl,imx6ul-tsc".
- reg: this touch controller address and the ADC2 address.
- interrupts: the interrupt of this touch controller and ADC2.
- clocks: the root clock of touch controller and ADC2.
- clock-names; must be "tsc" and "adc".
- xnur-gpio: the X- gpio this controller connect to.
This xnur-gpio returns to low once the finger leave the touch screen (The
last touch event the touch controller capture).
Optional properties:
- measure-delay-time: the value of measure delay time.
Before X-axis or Y-axis measurement, the screen need some time before
even potential distribution ready.
This value depends on the touch screen.
- pre-charge-time: the touch screen need some time to precharge.
This value depends on the touch screen.
Example:
tsc: tsc@02040000 {
compatible = "fsl,imx6ul-tsc";
reg = <0x02040000 0x4000>, <0x0219c000 0x4000>;
interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clks IMX6UL_CLK_IPG>,
<&clks IMX6UL_CLK_ADC2>;
clock-names = "tsc", "adc";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_tsc>;
xnur-gpio = <&gpio1 3 GPIO_ACTIVE_LOW>;
measure-delay-time = <0xfff>;
pre-charge-time = <0xffff>;
status = "okay";
};
...@@ -479,6 +479,18 @@ config TOUCHSCREEN_MTOUCH ...@@ -479,6 +479,18 @@ config TOUCHSCREEN_MTOUCH
To compile this driver as a module, choose M here: the To compile this driver as a module, choose M here: the
module will be called mtouch. module will be called mtouch.
config TOUCHSCREEN_IMX6UL_TSC
tristate "Freescale i.MX6UL touchscreen controller"
depends on (OF && GPIOLIB) || COMPILE_TEST
help
Say Y here if you have a Freescale i.MX6UL, and want to
use the internal touchscreen controller.
If unsure, say N.
To compile this driver as a module, choose M here: the
module will be called imx6ul_tsc.
config TOUCHSCREEN_INEXIO config TOUCHSCREEN_INEXIO
tristate "iNexio serial touchscreens" tristate "iNexio serial touchscreens"
select SERIO select SERIO
......
...@@ -38,6 +38,7 @@ obj-$(CONFIG_TOUCHSCREEN_EGALAX) += egalax_ts.o ...@@ -38,6 +38,7 @@ obj-$(CONFIG_TOUCHSCREEN_EGALAX) += egalax_ts.o
obj-$(CONFIG_TOUCHSCREEN_FUJITSU) += fujitsu_ts.o obj-$(CONFIG_TOUCHSCREEN_FUJITSU) += fujitsu_ts.o
obj-$(CONFIG_TOUCHSCREEN_GOODIX) += goodix.o obj-$(CONFIG_TOUCHSCREEN_GOODIX) += goodix.o
obj-$(CONFIG_TOUCHSCREEN_ILI210X) += ili210x.o obj-$(CONFIG_TOUCHSCREEN_ILI210X) += ili210x.o
obj-$(CONFIG_TOUCHSCREEN_IMX6UL_TSC) += imx6ul_tsc.o
obj-$(CONFIG_TOUCHSCREEN_INEXIO) += inexio.o obj-$(CONFIG_TOUCHSCREEN_INEXIO) += inexio.o
obj-$(CONFIG_TOUCHSCREEN_INTEL_MID) += intel-mid-touch.o obj-$(CONFIG_TOUCHSCREEN_INTEL_MID) += intel-mid-touch.o
obj-$(CONFIG_TOUCHSCREEN_IPROC) += bcm_iproc_tsc.o obj-$(CONFIG_TOUCHSCREEN_IPROC) += bcm_iproc_tsc.o
......
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