linux-kernel - [PATCH v2 2/2] arm64: dts: qcom: sdm845-starqltechn: add slpi support

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Message-Id: <20250912-starqltechn_slpi-v2-2-5ca5ddbbe7b4@gmail.com>
Date: Fri, 12 Sep 2025 21:56:36 +0300
From: Dzmitry Sankouski <dsankouski@...il.com>
To: 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 v2 2/2] arm64: dts: qcom: sdm845-starqltechn: add slpi
 support

Add support for Qualcomm sensor low power island.

Signed-off-by: Dzmitry Sankouski <dsankouski@...il.com>
---
Changes in v2:
- pinctrl replaced with fixed regulator
- add space before 'status' node
---
 .../boot/dts/qcom/sdm845-samsung-starqltechn.dts   | 29 ++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm845-samsung-starqltechn.dts b/arch/arm64/boot/dts/qcom/sdm845-samsung-starqltechn.dts
index 32ce666fc57e..75a53f0bbebd 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-samsung-starqltechn.dts
+++ b/arch/arm64/boot/dts/qcom/sdm845-samsung-starqltechn.dts
@@ -56,6 +56,21 @@ framebuffer: framebuffer@...00000 {
 		};
 	};
 
+	slpi_regulator: slpi-regulator {
+		compatible = "regulator-fixed";
+		pinctrl-0 = <&slpi_ldo_active_state>;
+		pinctrl-names = "default";
+
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		regulator-name = "slpi";
+
+		enable-active-high;
+		gpio = <&tlmm 8 GPIO_ACTIVE_HIGH>;
+	};
+
 	vib_regulator: gpio-regulator {
 		compatible = "regulator-fixed";
 
@@ -902,6 +917,13 @@ &ipa {
 	status = "okay";
 };
 
+&slpi_pas {
+	firmware-name = "qcom/sdm845/starqltechn/slpi.mbn";
+	cx-supply = <&slpi_regulator>;
+
+	status = "okay";
+};
+
 &usb_1 {
 	status = "okay";
 };
@@ -1028,6 +1050,13 @@ sd_card_det_n_state: sd-card-det-n-state {
 		bias-pull-up;
 	};
 
+	slpi_ldo_active_state: slpi-ldo-active-state {
+		pins = "gpio8";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
 	touch_irq_state: touch-irq-state {
 		pins = "gpio120";
 		function = "gpio";

-- 
2.39.5