arm64: dts: qcom: msm8996-xiaomi-scorpio: Add touchkey controller

Add a node and pin states for Cypress StreetFighter touchkey
controller.

Signed-off-by: Yassine Oudjana <y.oudjana@protonmail.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211104104932.104046-1-y.oudjana@protonmail.com

diff --git a/arch/arm64/boot/dts/qcom/msm8996-xiaomi-scorpio.dts b/arch/arm64/boot/dts/qcom/msm8996-xiaomi-scorpio.dts
index e5b8402..27a45dd 100644 (file)
--- a/arch/arm64/boot/dts/qcom/msm8996-xiaomi-scorpio.dts
+++ b/arch/arm64/boot/dts/qcom/msm8996-xiaomi-scorpio.dts
@@ -60,6 +60,20 @@
 };
 
 &blsp2_i2c6 {
+       touchkey: touchkey@28 {
+               compatible = "cypress,sf3155";
+               reg = <0x28>;
+               interrupt-parent = <&tlmm>;
+               interrupts = <77 IRQ_TYPE_EDGE_FALLING>;
+               avdd-supply = <&vreg_l6a_1p8>;
+               vdd-supply = <&vdd_3v2_tp>;
+               linux,keycodes = <KEY_BACK KEY_MENU>;
+
+               pinctrl-names = "default", "sleep";
+               pinctrl-0 = <&touchkey_default>;
+               pinctrl-1 = <&touchkey_sleep>;
+       };
+
        touchscreen: atmel-mxt-ts@4a {
                compatible = "atmel,maxtouch";
                reg = <0x4a>;
@@ -416,6 +430,20 @@
                "RFFE1_DATA",           /* GPIO_148 */
                "RFFE1_CLK";            /* GPIO_149 */
 
+       touchkey_default: touchkey_default {
+               pins = "gpio77";
+               function = "gpio";
+               drive-strength = <16>;
+               bias-pull-up;
+       };
+
+       touchkey_sleep: touchkey_sleep {
+               pins = "gpio77";
+               function = "gpio";
+               drive-strength = <2>;
+               bias-disable;
+       };
+
        touchscreen_default: touchscreen_default {
                pins = "gpio75", "gpio125";
                function = "gpio";