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arm64: dts: mt8365-evk: Add goodix touchscreen support

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The Mediatek Genio 350-EVK board has on the DSI0 connector a StarTek
KD070FHFID015 display panel that uses a Goodix GT9271 I2C capacitive
touch controller.

The mt8365-evk devicetree already have the display panel support but
lacks the touchscreen support, so add it.

Signed-off-by: Louis-Alexis Eyraud <louisalexis.eyraud@collabora.com>
Link: https://lore.kernel.org/r/20250515-mt8365-evk-enable-touchscreen-v1-1-7ba3c87b2a71@collabora.com
[Angelo: Reordered regulator nodes and interurpts-extended property]
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
This commit is contained in:
Louis-Alexis Eyraud 2025-05-15 12:04:11 +02:00 • committed by AngeloGioacchino Del Regno
parent cf57ec7b9f
commit b28c4af8e4
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1 changed files with 40 additions and 0 deletions
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40
arch/arm64/boot/dts/mediatek/mt8365-evk.dts
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@ -78,6 +78,21 @@
enable-active-high;
};
reg_vsys: regulator-vsys {
compatible = "regulator-fixed";
regulator-name = "vsys";
regulator-always-on;
regulator-boot-on;
};
touch0_fixed_3v3: regulator-vio33tp {
compatible = "regulator-fixed";
regulator-name = "vio33_tp";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
vin-supply = <&reg_vsys>;
};
reserved-memory {
#address-cells = <2>;
#size-cells = <2>;
@ -324,6 +339,18 @@
};
};
};
touchscreen@5d {
compatible = "goodix,gt9271";
reg = <0x5d>;
interrupts-extended = <&pio 78 IRQ_TYPE_EDGE_FALLING>;
pinctrl-names = "default";
pinctrl-0 = <&touch_pins>;
irq-gpios = <&pio 78 GPIO_ACTIVE_HIGH>;
reset-gpios = <&pio 79 GPIO_ACTIVE_LOW>;
AVDD28-supply = <&touch0_fixed_3v3>;
VDDIO-supply = <&mt6357_vrf12_reg>;
};
};
&mmc0 {
@ -650,6 +677,19 @@
};
};
touch_pins: touch-pins {
ctp-int1-pins {
pinmux = <MT8365_PIN_78_CMHSYNC__FUNC_GPIO78>;
input-enable;
bias-disable;
};
rst-pins {
pinmux = <MT8365_PIN_79_CMVSYNC__FUNC_GPIO79>;
output-low;
};
};
uart0_pins: uart0-pins {
pins {
pinmux = <MT8365_PIN_35_URXD0__FUNC_URXD0>,