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arm64: dts: mt8192-asurada-spherion: Add Synaptics trackpad support

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Some spherion variants use Synaptics trackpad at address 0x2c in the
I2C2 bus with the generic HID-over-i2c driver, and this cannot be
distinguished from the firmware compatible string.

Support both trackpads in the same devicetree by moving the trackpad
pinctrl property to i2c2 and adding the node for Synaptics trackpad.

Signed-off-by: Pin-yen Lin <treapking@chromium.org>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Link: https://lore.kernel.org/r/20240912154451.3447081-1-treapking@chromium.org
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
This commit is contained in:
Pin-yen Lin
2024-09-12 23:44:29 +08:00
committed by AngeloGioacchino Del Regno
parent 43a9d9ea62
commit 925ebc0cd5
2 changed files with 12 additions and 3 deletions
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11
arch/arm64/boot/dts/mediatek/mt8192-asurada-spherion-r0.dts
View File

@@ -79,3 +79,14 @@ headset-codec {
&touchscreen {
compatible = "elan,ekth3500";
};
&i2c2 {
/* synaptics touchpad */
trackpad@2c {
compatible = "hid-over-i2c";
reg = <0x2c>;
hid-descr-addr = <0x20>;
interrupts-extended = <&pio 15 IRQ_TYPE_LEVEL_LOW>;
wakeup-source;
};
};

4
arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
View File

@@ -335,14 +335,12 @@ &i2c2 {
clock-frequency = <400000>;
clock-stretch-ns = <12600>;
pinctrl-names = "default";
pinctrl-0 = <&i2c2_pins>;
pinctrl-0 = <&i2c2_pins>, <&trackpad_pins>;
trackpad@15 {
compatible = "elan,ekth3000";
reg = <0x15>;
interrupts-extended = <&pio 15 IRQ_TYPE_LEVEL_LOW>;
pinctrl-names = "default";
pinctrl-0 = <&trackpad_pins>;
vcc-supply = <&pp3300_u>;
wakeup-source;
};