7d3b0d9ebd
The ili9882t touch screen chip same as Elan eKTH6915 controller has a reset gpio. The difference is that ili9882t needs to use vccio-supply instead of vcc33-supply. Doug's series[1] allows panels and touchscreens to power on/off together, let's add a phandle for this. [1]: https://lore.kernel.org/r/20230607215224.2067679-1-dianders@chromium.org Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Cong Yang <yangcong5@huaqin.corp-partner.google.com> Reviewed-by: Douglas Anderson <dianders@chromium.org> Link: https://lore.kernel.org/r/20230802071947.1683318-2-yangcong5@huaqin.corp-partner.google.com Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
68 lines
1.3 KiB
YAML
68 lines
1.3 KiB
YAML
# 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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$id: http://devicetree.org/schemas/input/ilitek,ili9882t.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Ilitek ili9882t touchscreen controller
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maintainers:
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- Cong Yang <yangcong5@huaqin.corp-partner.google.com>
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description:
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Supports the Ilitek ili9882t touchscreen controller.
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This touchscreen controller uses the i2c-hid protocol with a reset GPIO.
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allOf:
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- $ref: /schemas/input/touchscreen/touchscreen.yaml#
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properties:
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compatible:
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const: ilitek,ili9882t
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reg:
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const: 0x41
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interrupts:
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maxItems: 1
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panel: true
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reset-gpios:
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maxItems: 1
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description: Reset GPIO.
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vccio-supply:
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description: The 1.8V supply to the touchscreen.
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required:
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- compatible
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- reg
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- interrupts
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- panel
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- vccio-supply
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/interrupt-controller/irq.h>
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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touchscreen: touchscreen@41 {
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compatible = "ilitek,ili9882t";
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reg = <0x41>;
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interrupt-parent = <&pio>;
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interrupts = <12 IRQ_TYPE_LEVEL_LOW>;
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panel = <&panel>;
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reset-gpios = <&pio 60 GPIO_ACTIVE_LOW>;
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vccio-supply = <&mt6366_vio18_reg>;
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};
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};
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