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dt-bindings: input: touchscreen: fsl,imx6ul-tsc convert to YAML
Convert the i.MX6UL touchscreen DT binding to YAML. Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Sebastian Reichel <sre@kernel.org> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Link: https://lore.kernel.org/r/20240226212740.2019837-3-sre@kernel.org Signed-off-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Sebastian Reichel
Rob Herring
parent
7cfc8db2c0
commit
b637660697
2 changed files with 97 additions and 38 deletions
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/input/touchscreen/fsl,imx6ul-tsc.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Freescale i.MX6UL Touch Controller
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maintainers:
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- Haibo Chen <haibo.chen@nxp.com>
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- Shawn Guo <shawnguo@kernel.org>
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- Sascha Hauer <s.hauer@pengutronix.de>
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properties:
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compatible:
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const: fsl,imx6ul-tsc
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reg:
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items:
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- description: touch controller address
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- description: ADC2 address
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interrupts:
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items:
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- description: touch controller address
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- description: ADC2 address
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clocks:
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maxItems: 2
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clock-names:
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items:
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- const: tsc
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- const: adc
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xnur-gpios:
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maxItems: 1
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description:
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The X- gpio this controller connect to. This xnur-gpio returns to
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low once the finger leave the touch screen (The last touch event
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the touch controller capture).
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measure-delay-time:
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$ref: /schemas/types.yaml#/definitions/uint32
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description:
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The value of measure delay time. Before X-axis or Y-axis measurement,
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the screen need some time before even potential distribution ready.
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default: 0xffff
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minimum: 0
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maximum: 0xffffff
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pre-charge-time:
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$ref: /schemas/types.yaml#/definitions/uint32
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description:
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The touch screen need some time to precharge.
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default: 0xfff
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minimum: 0
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maximum: 0xffffffff
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touchscreen-average-samples:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: Number of data samples which are averaged for each read.
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enum: [ 1, 4, 8, 16, 32 ]
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required:
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- compatible
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- reg
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- interrupts
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- clocks
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- clock-names
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- xnur-gpios
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allOf:
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- $ref: touchscreen.yaml#
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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#include <dt-bindings/clock/imx6ul-clock.h>
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#include <dt-bindings/gpio/gpio.h>
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touchscreen@2040000 {
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compatible = "fsl,imx6ul-tsc";
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reg = <0x02040000 0x4000>, <0x0219c000 0x4000>;
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interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&clks IMX6UL_CLK_IPG>,
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<&clks IMX6UL_CLK_ADC2>;
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clock-names = "tsc", "adc";
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_tsc>;
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xnur-gpios = <&gpio1 3 GPIO_ACTIVE_LOW>;
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measure-delay-time = <0xfff>;
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pre-charge-time = <0xffff>;
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touchscreen-average-samples = <32>;
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};
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@ -1,38 +0,0 @@
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* Freescale i.MX6UL Touch Controller
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Required properties:
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- compatible: must be "fsl,imx6ul-tsc".
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- reg: this touch controller address and the ADC2 address.
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- interrupts: the interrupt of this touch controller and ADC2.
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- clocks: the root clock of touch controller and ADC2.
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- clock-names; must be "tsc" and "adc".
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- xnur-gpio: the X- gpio this controller connect to.
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This xnur-gpio returns to low once the finger leave the touch screen (The
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last touch event the touch controller capture).
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Optional properties:
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- measure-delay-time: the value of measure delay time.
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Before X-axis or Y-axis measurement, the screen need some time before
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even potential distribution ready.
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This value depends on the touch screen.
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- pre-charge-time: the touch screen need some time to precharge.
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This value depends on the touch screen.
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- touchscreen-average-samples: Number of data samples which are averaged for
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each read. Valid values are 1, 4, 8, 16 and 32.
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Example:
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tsc: tsc@2040000 {
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compatible = "fsl,imx6ul-tsc";
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reg = <0x02040000 0x4000>, <0x0219c000 0x4000>;
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interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&clks IMX6UL_CLK_IPG>,
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<&clks IMX6UL_CLK_ADC2>;
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clock-names = "tsc", "adc";
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_tsc>;
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xnur-gpio = <&gpio1 3 GPIO_ACTIVE_LOW>;
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measure-delay-time = <0xfff>;
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pre-charge-time = <0xffff>;
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touchscreen-average-samples = <32>;
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};
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