Aries boards have soft touchkeys, manufactured by Cypress,
attached over i2c-gpio.
Signed-off-by: Jonathan Bakker <xc-racer2@xxxxxxx>
---
arch/arm/boot/dts/s5pv210-aries.dtsi | 58 ++++++++++++++++++++++++++++
1 file changed, 58 insertions(+)
diff --git a/arch/arm/boot/dts/s5pv210-aries.dtsi b/arch/arm/boot/dts/s5pv210-aries.dtsi
index 6233884713cb..6683ecec905a 100644
--- a/arch/arm/boot/dts/s5pv210-aries.dtsi
+++ b/arch/arm/boot/dts/s5pv210-aries.dtsi
@@ -16,6 +16,7 @@
i2c6 = &i2c_pmic;
i2c7 = &i2c_musb;
i2c9 = &i2c_fuel;
+ i2c10 = &i2c_touchkey;
};
memory@30000000 {
@@ -50,6 +51,18 @@
gpio = <&gpj1 1 GPIO_ACTIVE_HIGH>;
};
+ touchkey_vdd: regulator-fixed-1 {
+ compatible = "regulator-fixed";
+ regulator-name = "VTOUCH_3.3V";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ enable-active-high;
+ gpio = <&gpj3 2 GPIO_ACTIVE_HIGH>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&touchkey_vdd_ena>;
+ };
+
wifi_pwrseq: wifi-pwrseq {
compatible = "mmc-pwrseq-simple";
reset-gpios = <&gpg1 2 GPIO_ACTIVE_LOW>;
@@ -400,6 +413,32 @@
};
};
+ i2c_touchkey: i2c-gpio-5 {
+ compatible = "i2c-gpio";
+ sda-gpios = <&gpj3 0 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+ scl-gpios = <&gpj3 1 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+ i2c-gpio,delay-us = <2>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&touchkey_i2c_pins>;
+
+ touchkey@20 {
+ compatible = "cypress,aries-touchkey";
+ reg = <0x20>;
+ vdd-supply = <&touchkey_vdd>;
+ vcc-supply = <&buck3_reg>;
+ linux,keycodes = <KEY_MENU KEY_BACK
+ KEY_HOMEPAGE KEY_SEARCH>;
+ interrupt-parent = <&gpj4>;
+ interrupts = <1 IRQ_TYPE_LEVEL_LOW>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&touchkey_irq>;
+ };
+ };
+
vibrator: pwm-vibrator {
compatible = "pwm-vibrator";
pwms = <&pwm 1 44642 0>;
@@ -530,6 +569,18 @@
samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
};
+ touchkey_i2c_pins: touchkey-i2c-pins {
+ samsung,pins = "gpj3-0", "gpj3-1";
+ samsung,pin-pud = <S3C64XX_PIN_PULL_NONE>;
+ samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
+ };
+
+ touchkey_vdd_ena: touchkey-vdd-ena {
+ samsung,pins = "gpj3-2";
+ samsung,pin-pud = <S3C64XX_PIN_PULL_NONE>;
+ samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
+ };
+
musb_i2c_pins: musb-i2c-pins {
samsung,pins = "gpj3-4", "gpj3-5";
samsung,pin-pud = <S3C64XX_PIN_PULL_NONE>;
@@ -542,6 +593,13 @@
samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
};
+ touchkey_irq: touchkey-irq {
+ samsung,pins = "gpj4-1";
+ samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
+ samsung,pin-pud = <S3C64XX_PIN_PULL_UP>;
+ samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
+ };
+
fg_i2c_pins: fg-i2c-pins {
samsung,pins = "mp05-0", "mp05-1";
samsung,pin-pud = <S3C64XX_PIN_PULL_NONE>;
--
2.20.1
