From e031715a7027c63e0f722a0a4d844c3d9c020b71 Mon Sep 17 00:00:00 2001
From: =?utf8?q?N=C3=ADcolas=20F=2E=20R=2E=20A=2E=20Prado?=
 <nfraprado@collabora.com>
Date: Wed, 29 Jun 2022 11:59:47 -0400
Subject: [PATCH] arm64: dts: mediatek: asurada: Add Elan eKTH3000 I2C trackpad
MIME-Version: 1.0
Content-Type: text/plain; charset=utf8
Content-Transfer-Encoding: 8bit

Add support for the Elan eKTH3000 i2c trackpad present on Asurada. It is
connected to the I2C2 bus and has address 0x15.

Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20220629155956.1138955-11-nfraprado@collabora.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
---
 .../boot/dts/mediatek/mt8192-asurada.dtsi      | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi b/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
index fe626535ee5df..4de4235cb7685 100644
--- a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
@@ -109,6 +109,16 @@
 	clock-stretch-ns = <12600>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&i2c2_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;
+	};
 };
 
 &i2c3 {
@@ -436,6 +446,14 @@
 			bias-disable;
 		};
 	};
+
+	trackpad_pins: trackpad-default-pins {
+		pins-int-n {
+			pinmux = <PINMUX_GPIO15__FUNC_GPIO15>;
+			input-enable;
+			bias-pull-up = <MTK_PUPD_SET_R1R0_11>;
+		};
+	};
 };
 
 &spi1 {
-- 
2.30.2