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Signed-off-by: Frank Li Reviewed-by: Rob Herring (Arm) --- .../bindings/input/touchscreen/fsl,imx25-tcq.yaml | 69 ++++++++++++++++++= ++++ .../bindings/input/touchscreen/fsl-mx25-tcq.txt | 34 ----------- 2 files changed, 69 insertions(+), 34 deletions(-) diff --git a/Documentation/devicetree/bindings/input/touchscreen/fsl,imx25-= tcq.yaml b/Documentation/devicetree/bindings/input/touchscreen/fsl,imx25-tc= q.yaml new file mode 100644 index 0000000000000000000000000000000000000000..94452ac423d04c24817440ce4a1= 671edeeb1ac28 --- /dev/null +++ b/Documentation/devicetree/bindings/input/touchscreen/fsl,imx25-tcq.yaml @@ -0,0 +1,69 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/input/touchscreen/fsl,imx25-tcq.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Freescale mx25 TS conversion queue module + +maintainers: + - Frank Li + +description: + mx25 touchscreen conversion queue module which controls the ADC unit of = the + mx25 for attached touchscreens. + +properties: + compatible: + const: fsl,imx25-tcq + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + fsl,wires: + description: touch wires number. + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [4, 5] + + fsl,pen-debounce-ns: + description: + Pen debounce time in nanoseconds. + + fsl,pen-threshold: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + Pen-down threshold for the touchscreen. This is a value + between 1 and 4096. It is the ratio between the internal reference v= oltage + and the measured voltage after the plate was precharged. Resistance = between + plates and therefore the voltage decreases with pressure so that a s= maller + value is equivalent to a higher pressure. + + fsl,settling-time-ns: + description: + Settling time in nanoseconds. The settling time is before + the actual touch detection to wait for an even charge distribution i= n the + plate. + +allOf: + - $ref: touchscreen.yaml + +required: + - compatible + - reg + - interrupts + - fsl,wires + +unevaluatedProperties: false + +examples: + - | + touchscreen@50030400 { + compatible =3D "fsl,imx25-tcq"; + reg =3D <0x50030400 0x60>; + interrupt-parent =3D <&tscadc>; + interrupts =3D <0>; + fsl,wires =3D <4>; + }; diff --git a/Documentation/devicetree/bindings/input/touchscreen/fsl-mx25-t= cq.txt b/Documentation/devicetree/bindings/input/touchscreen/fsl-mx25-tcq.t= xt deleted file mode 100644 index 99d6f9d2533579672eb4e277bcb40d274696831b..000000000000000000000000000= 0000000000000 --- a/Documentation/devicetree/bindings/input/touchscreen/fsl-mx25-tcq.txt +++ /dev/null @@ -1,34 +0,0 @@ -Freescale mx25 TS conversion queue module - -mx25 touchscreen conversion queue module which controls the ADC unit of the -mx25 for attached touchscreens. - -Required properties: - - compatible: Should be "fsl,imx25-tcq". - - reg: Memory range of the device. - - interrupts: Should be the interrupt number associated with this module = within - the tscadc unit (<0>). - - fsl,wires: Should be '<4>' or '<5>' - -Optional properties: - - fsl,pen-debounce-ns: Pen debounce time in nanoseconds. - - fsl,pen-threshold: Pen-down threshold for the touchscreen. This is a va= lue - between 1 and 4096. It is the ratio between the internal reference volt= age - and the measured voltage after the plate was precharged. Resistance bet= ween - plates and therefore the voltage decreases with pressure so that a smal= ler - value is equivalent to a higher pressure. - - fsl,settling-time-ns: Settling time in nanoseconds. The settling time i= s before - the actual touch detection to wait for an even charge distribution in t= he - plate. - -This device includes two conversion queues which can be added as subnodes. -The first queue is for the touchscreen, the second for general purpose ADC. - -Example: - tsc: tcq@50030400 { - compatible =3D "fsl,imx25-tcq"; - reg =3D <0x50030400 0x60>; - interrupt-parent =3D <&tscadc>; - interrupts =3D <0>; - fsl,wires =3D <4>; - }; --=20 2.43.0