linux-kernel - [PATCH] arm64: dts: qcom: msm8996-xiaomi-scorpio: Add touchkey controller

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Message-ID: <20211104104932.104046-1-y.oudjana@protonmail.com>
Date:   Thu, 04 Nov 2021 10:49:58 +0000
From:   Yassine Oudjana <y.oudjana@...tonmail.com>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>
Cc:     Yassine Oudjana <y.oudjana@...tonmail.com>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        phone-devel@...r.kernel.org, linux-kernel@...r.kernel.org,
        ~postmarketos/upstreaming@...ts.sr.ht
Subject: [PATCH] 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@...tonmail.com>
---
 .../boot/dts/qcom/msm8996-xiaomi-scorpio.dts  | 28 +++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/msm8996-xiaomi-scorpio.dts b/arch/arm64/boot/dts/qcom/msm8996-xiaomi-scorpio.dts
index e5b8402b1ed6..27a45ddbb5bd 100644
--- a/arch/arm64/boot/dts/qcom/msm8996-xiaomi-scorpio.dts
+++ b/arch/arm64/boot/dts/qcom/msm8996-xiaomi-scorpio.dts
@@ -60,6 +60,20 @@ &adsp_pil {
 };
 
 &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 @@ &tlmm {
 		"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";
-- 
2.33.1