linux-kernel - [PATCH v6 08/12] arm64: dts: qcom: sdm845-starqltechn: add display PMIC

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Message-Id: <20241008-starqltechn_integration_upstream-v6-8-5445365d3052@gmail.com>
Date: Tue, 08 Oct 2024 19:51:45 +0300
From: Dzmitry Sankouski <dsankouski@...il.com>
To: cros-qcom-dts-watchers@...omium.org, 
 Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Dzmitry Sankouski <dsankouski@...il.com>
Subject: [PATCH v6 08/12] arm64: dts: qcom: sdm845-starqltechn: add display
 PMIC

Add support for s2dos05 display / touchscreen PMIC

Signed-off-by: Dzmitry Sankouski <dsankouski@...il.com>
---
Changes in v6:
- refactor: s/starqltechn/sdm845-starqltechn in subject
- refactor: 'i' < 'm', so put tlmm i2c node before motor*

Changes in v5:
- simplify regulator names
- remove single buck index
---
 arch/arm64/boot/dts/qcom/sdm845-samsung-starqltechn.dts | 77 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 77 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm845-samsung-starqltechn.dts b/arch/arm64/boot/dts/qcom/sdm845-samsung-starqltechn.dts
index 7d1d57f41024..5635f3b088cf 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-samsung-starqltechn.dts
+++ b/arch/arm64/boot/dts/qcom/sdm845-samsung-starqltechn.dts
@@ -39,6 +39,9 @@ framebuffer: framebuffer@...00000 {
 			height = <2960>;
 			stride = <(1440 * 4)>;
 			format = "a8r8g8b8";
+			vci-supply = <&s2dos05_ldo4>;
+			vddr-supply = <&s2dos05_buck>;
+			vdd3-supply = <&s2dos05_ldo1>;
 		};
 	};
 
@@ -101,6 +104,66 @@ key-wink {
 		};
 	};
 
+	i2c21 {
+		compatible = "i2c-gpio";
+		sda-gpios = <&tlmm 127 GPIO_ACTIVE_HIGH>;
+		scl-gpios = <&tlmm 128 GPIO_ACTIVE_HIGH>;
+		i2c-gpio,delay-us = <2>;
+		pinctrl-0 = <&i2c21_sda_state &i2c21_scl_state>;
+		pinctrl-names = "default";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		pmic@60 {
+			compatible = "samsung,s2dos05";
+			reg = <0x60>;
+
+			regulators {
+				s2dos05_ldo1: ldo1 {
+					regulator-active-discharge = <1>;
+					regulator-enable-ramp-delay = <12000>;
+					regulator-min-microvolt = <1500000>;
+					regulator-max-microvolt = <2000000>;
+					regulator-name = "ldo1";
+				};
+
+				s2dos05_ldo2: ldo2 {
+					regulator-active-discharge = <1>;
+					regulator-boot-on;
+					regulator-enable-ramp-delay = <12000>;
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-name = "ldo2";
+				};
+
+				s2dos05_ldo3: ldo3 {
+					regulator-active-discharge = <1>;
+					regulator-boot-on;
+					regulator-enable-ramp-delay = <12000>;
+					regulator-min-microvolt = <3000000>;
+					regulator-max-microvolt = <3000000>;
+					regulator-name = "ldo3";
+				};
+
+				s2dos05_ldo4: ldo4 {
+					regulator-active-discharge = <1>;
+					regulator-enable-ramp-delay = <12000>;
+					regulator-min-microvolt = <2700000>;
+					regulator-max-microvolt = <3775000>;
+					regulator-name = "ldo4";
+				};
+
+				s2dos05_buck: buck {
+					regulator-active-discharge = <1>;
+					regulator-enable-ramp-delay = <12000>;
+					regulator-min-microvolt = <850000>;
+					regulator-max-microvolt = <2100000>;
+					regulator-name = "buck";
+				};
+			};
+		};
+	};
+
 	vib_regulator: gpio-regulator {
 		compatible = "regulator-fixed";
 		regulator-name = "haptic";
@@ -544,6 +607,20 @@ &tlmm {
 	gpio-reserved-ranges = <27 4>, /* SPI (eSE - embedded Secure Element) */
 			       <85 4>; /* SPI (fingerprint reader) */
 
+	i2c21_sda_state: i2c21-sda-state {
+		pins = "gpio127";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
+	i2c21_scl_state: i2c21-scl-state {
+		pins = "gpio128";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
 	motor_pwm_default_state: motor-pwm-active-state {
 		pins = "gpio57";
 		function = "gcc_gp1";

-- 
2.39.2