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author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2015-09-11 09:02:36 -0700 |
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committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2015-09-11 09:02:36 -0700 |
commit | 53431d0a3534263168c8ee576bad1c2c3a4cd9e0 (patch) | |
tree | 84b3dda2e2409d1eda7c2273053c78cd6aa3a677 /Documentation | |
parent | 01b944fe1cd4e21a2a9ed51adbdbafe2d5e905ba (diff) | |
parent | ade9c1a47c811a7ae1c874882ad9178af1ed1098 (diff) | |
download | linux-53431d0a3534263168c8ee576bad1c2c3a4cd9e0.tar.bz2 |
Merge branch 'next' into for-linus
Prepare second round of input updates for 4.3 merge window.
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/devicetree/bindings/input/touchscreen/colibri-vf50-ts.txt | 36 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/input/touchscreen/imx6ul_tsc.txt | 36 |
2 files changed, 72 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/input/touchscreen/colibri-vf50-ts.txt b/Documentation/devicetree/bindings/input/touchscreen/colibri-vf50-ts.txt new file mode 100644 index 000000000000..9d9e930f3251 --- /dev/null +++ b/Documentation/devicetree/bindings/input/touchscreen/colibri-vf50-ts.txt @@ -0,0 +1,36 @@ +* Toradex Colibri VF50 Touchscreen driver + +Required Properties: +- compatible must be toradex,vf50-touchscreen +- io-channels: adc channels being used by the Colibri VF50 module +- xp-gpios: FET gate driver for input of X+ +- xm-gpios: FET gate driver for input of X- +- yp-gpios: FET gate driver for input of Y+ +- ym-gpios: FET gate driver for input of Y- +- interrupt-parent: phandle for the interrupt controller +- interrupts: pen irq interrupt for touch detection +- pinctrl-names: "idle", "default", "gpios" +- pinctrl-0: pinctrl node for pen/touch detection state pinmux +- pinctrl-1: pinctrl node for X/Y and pressure measurement (ADC) state pinmux +- pinctrl-2: pinctrl node for gpios functioning as FET gate drivers +- vf50-ts-min-pressure: pressure level at which to stop measuring X/Y values + +Example: + + touchctrl: vf50_touchctrl { + compatible = "toradex,vf50-touchscreen"; + io-channels = <&adc1 0>,<&adc0 0>, + <&adc0 1>,<&adc1 2>; + xp-gpios = <&gpio0 13 GPIO_ACTIVE_LOW>; + xm-gpios = <&gpio2 29 GPIO_ACTIVE_HIGH>; + yp-gpios = <&gpio0 12 GPIO_ACTIVE_LOW>; + ym-gpios = <&gpio0 4 GPIO_ACTIVE_HIGH>; + interrupt-parent = <&gpio0>; + interrupts = <8 IRQ_TYPE_LEVEL_LOW>; + pinctrl-names = "idle","default","gpios"; + pinctrl-0 = <&pinctrl_touchctrl_idle>; + pinctrl-1 = <&pinctrl_touchctrl_default>; + pinctrl-2 = <&pinctrl_touchctrl_gpios>; + vf50-ts-min-pressure = <200>; + status = "disabled"; + }; diff --git a/Documentation/devicetree/bindings/input/touchscreen/imx6ul_tsc.txt b/Documentation/devicetree/bindings/input/touchscreen/imx6ul_tsc.txt new file mode 100644 index 000000000000..853dff96dd9f --- /dev/null +++ b/Documentation/devicetree/bindings/input/touchscreen/imx6ul_tsc.txt @@ -0,0 +1,36 @@ +* 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"; + }; |