From 6e73b11062b2e3e873666ba35577437502cf1dd2 Mon Sep 17 00:00:00 2001 From: Paul Cercueil Date: Wed, 6 Dec 2023 23:15:55 +0100 Subject: [PATCH] ARM: dts: samsung: exynos4210-i9100: Add node for touch keys Add a Device Tree node to support the LED-backed "menu" and "back" keys. Signed-off-by: Paul Cercueil Link: https://lore.kernel.org/r/20231206221556.15348-3-paul@crapouillou.net Signed-off-by: Krzysztof Kozlowski --- .../arm/boot/dts/samsung/exynos4210-i9100.dts | 23 ++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/samsung/exynos4210-i9100.dts b/arch/arm/boot/dts/samsung/exynos4210-i9100.dts index a076a1dfe41f..f03b03dbe9f2 100644 --- a/arch/arm/boot/dts/samsung/exynos4210-i9100.dts +++ b/arch/arm/boot/dts/samsung/exynos4210-i9100.dts @@ -184,6 +184,28 @@ }; }; + i2c-gpio-2 { + compatible = "i2c-gpio"; + #address-cells = <1>; + #size-cells = <0>; + + sda-gpios = <&gpk1 2 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; + scl-gpios = <&gpk1 0 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; + i2c-gpio,delay-us = <2>; + + touchscreen@20 { + compatible = "cypress,aries-touchkey"; + reg = <0x20>; + + interrupt-parent = <&gpl0>; + interrupts = <5 IRQ_TYPE_EDGE_FALLING>; + + vdd-supply = <&vtouchled_reg>; + vcc-supply = <&vtouch_reg>; + linux,keycodes = , ; + }; + }; + spi-3 { compatible = "spi-gpio"; #address-cells = <1>; @@ -513,7 +535,6 @@ regulator-name = "TOUCH_2.8V"; regulator-min-microvolt = <2800000>; regulator-max-microvolt = <2800000>; - regulator-always-on; }; vpll_reg: LDO10 {