linux-kernel - [PATCH v2 2/7] arm64: dts: qcom: sdm845-oneplus: Describe panel vci and poc supplies

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Message-Id: <20251008-s6e3fc2x01-v2-2-21eca1d5c289@ixit.cz>
Date: Wed, 08 Oct 2025 16:05:29 +0200
From: David Heidelberg via B4 Relay <devnull+david.ixit.cz@...nel.org>
To: Neil Armstrong <neil.armstrong@...aro.org>, 
 Jessica Zhang <jessica.zhang@....qualcomm.com>, 
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Thierry Reding <thierry.reding@...il.com>, Sam Ravnborg <sam@...nborg.org>, 
 Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>, 
 Casey Connolly <casey.connolly@...aro.org>
Cc: dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org, 
 phone-devel@...r.kernel.org, David Heidelberg <david@...t.cz>
Subject: [PATCH v2 2/7] arm64: dts: qcom: sdm845-oneplus: Describe panel
 vci and poc supplies

From: Casey Connolly <casey.connolly@...aro.org>

There are two additional supplies used by the panel, both are GPIO
controlled and are left enabled by the bootloader for continuous splash.

Previously these were (incorrectly) modelled as pinctrl. Describe them
properly so that the panel can control them.

Fixes: 288ef8a42612 ("arm64: dts: sdm845: add oneplus6/6t devices")
Signed-off-by: Casey Connolly <casey.connolly@...aro.org>
Co-developed-by: David Heidelberg <david@...t.cz>
Signed-off-by: David Heidelberg <david@...t.cz>
---
 .../arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi | 46 +++++++++++++++++++++-
 1 file changed, 45 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi b/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi
index dcfffb271fcf3..1cf03047dd7ae 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi
@@ -162,6 +162,34 @@ ts_1p8_supply: ts-1p8-regulator {
 		enable-active-high;
 		regulator-boot-on;
 	};
+
+	panel_vci_3v3: panel-vci-3v3-regulator {
+		compatible = "regulator-fixed";
+		regulator-name = "LCD_VCI_3V";
+
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpio = <&tlmm 26 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		pinctrl-0 = <&panel_vci_default>;
+		pinctrl-names = "default";
+		regulator-boot-on;
+	};
+
+	panel_vddi_poc_1p8: panel-vddi-poc-regulator {
+		compatible = "regulator-fixed";
+		regulator-name = "VDDI_POC";
+
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+
+		gpio = <&tlmm 25 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		pinctrl-0 = <&panel_poc_default>;
+		pinctrl-names = "default";
+		regulator-boot-on;
+	};
 };
 
 &adsp_pas {
@@ -429,6 +457,8 @@ display_panel: panel@0 {
 		reg = <0>;
 
 		vddio-supply = <&vreg_l14a_1p88>;
+		vci-supply = <&panel_vci_3v3>;
+		poc-supply = <&panel_vddi_poc_1p8>;
 
 		reset-gpios = <&tlmm 6 GPIO_ACTIVE_LOW>;
 
@@ -803,6 +833,20 @@ hall_sensor_default: hall-sensor-default-state {
 		bias-disable;
 	};
 
+	panel_vci_default: vci-state {
+		pins = "gpio26";
+		function = "gpio";
+		drive-strength = <8>;
+		bias-disable;
+	};
+
+	panel_poc_default: poc-state {
+		pins = "gpio25";
+		function = "gpio";
+		drive-strength = <8>;
+		bias-disable;
+	};
+
 	tri_state_key_default: tri-state-key-default-state {
 		pins = "gpio40", "gpio42", "gpio26";
 		function = "gpio";
@@ -818,7 +862,7 @@ ts_default_pins: ts-int-state {
 	};
 
 	panel_reset_pins: panel-reset-state {
-		pins = "gpio6", "gpio25", "gpio26";
+		pins = "gpio6";
 		function = "gpio";
 		drive-strength = <8>;
 		bias-disable;

-- 
2.51.0