From 4b888e50f0abb105430c1bba2b6fd7c55bbbed82 Mon Sep 17 00:00:00 2001 From: Max Krummenacher Date: Thu, 23 May 2019 19:16:27 +0200 Subject: Input: colbri-vf50-ts: improve bindings documentation Clarify properties. Drop unused pinctrl-2 state 'gpio'. Signed-off-by: Max Krummenacher (cherry picked from commit 54095d88b39a02ea674794e49ecd2c711d8a3d09) Conflicts: Documentation/devicetree/bindings/input/touchscreen/colibri-vf50-ts.txt --- .../bindings/input/touchscreen/colibri-vf50-ts.txt | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'Documentation/devicetree') diff --git a/Documentation/devicetree/bindings/input/touchscreen/colibri-vf50-ts.txt b/Documentation/devicetree/bindings/input/touchscreen/colibri-vf50-ts.txt index 2e1490a8fe74..192574f38ddb 100644 --- a/Documentation/devicetree/bindings/input/touchscreen/colibri-vf50-ts.txt +++ b/Documentation/devicetree/bindings/input/touchscreen/colibri-vf50-ts.txt @@ -3,15 +3,16 @@ Required Properties: - compatible must be toradex,vf50-touchscreen - io-channels: adc channels being used by the Colibri VF50 module + IIO ADC for Y-, X-, Y+, X+ connections - 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- -- interrupts: pen irq interrupt for touch detection -- pinctrl-names: "idle", "default", "gpios" -- pinctrl-0: pinctrl node for pen/touch detection state pinmux +- interrupts: pen irq interrupt for touch detection, signal from X plate +- pinctrl-names: "idle", "default" +- pinctrl-0: pinctrl node for pen/touch detection, pinctrl must provide + pull-up resistor on X+, X-. - 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: @@ -19,7 +20,7 @@ Example: touchctrl: vf50_touchctrl { compatible = "toradex,vf50-touchscreen"; io-channels = <&adc1 0>,<&adc0 0>, - <&adc0 1>,<&adc1 2>; + <&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>; @@ -27,8 +28,7 @@ Example: 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>; + pinctrl-0 = <&pinctrl_touchctrl_idle>, <&pinctrl_touchctrl_gpios> ; + pinctrl-1 = <&pinctrl_touchctrl_default>, <&pinctrl_touchctrl_gpios>; vf50-ts-min-pressure = <200>; }; -- cgit v1.2.3