ARM: dts: qcom: Add support for Samsung Galaxy Tab 4 10.1 LTE (SM-T535)

Add a device tree for the Samsung Galaxy Tab 4 10.1 (SM-T535) LTE tablet
based on the MSM8926 platform.

The common dtsi is also modified to describe the widest constraints,
which required modifications to the matisse-wifi dts.

Signed-off-by: Stefan Hansson <newbyte@postmarketos.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240215180322.99089-4-newbyte@postmarketos.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

Author: Newbytee

arch/arm/boot/dts/qcom/Makefile

@@ -36,6 +36,7 @@ dtb-$(CONFIG_ARCH_QCOM) += \
 	qcom-msm8926-microsoft-superman-lte.dtb \
 	qcom-msm8926-microsoft-tesla.dtb \
 	qcom-msm8926-motorola-peregrine.dtb \
+	qcom-msm8926-samsung-matisselte.dtb \
 	qcom-msm8960-cdp.dtb \
 	qcom-msm8960-samsung-expressatt.dtb \
 	qcom-msm8974-lge-nexus5-hammerhead.dtb \

arch/arm/boot/dts/qcom/qcom-apq8026-samsung-matisse-wifi.dts

@@ -73,6 +73,14 @@
 	};
 };
 
+&pm8226_l3 {
+	regulator-max-microvolt = <1337500>;
+};
+
+&pm8226_s4 {
+	regulator-max-microvolt = <1800000>;
+};
+
 &tlmm {
 	tsp_en1_default_state: tsp-en1-default-state {
 		pins = "gpio73";

arch/arm/boot/dts/qcom/qcom-msm8226-samsung-matisse-common.dtsi

@@ -230,7 +230,7 @@
 
 		pm8226_s4: s4 {
 			regulator-min-microvolt = <1800000>;
-			regulator-max-microvolt = <1800000>;
+			regulator-max-microvolt = <2200000>;
 		};
 
 		pm8226_s5: s5 {
@@ -250,7 +250,7 @@
 
 		pm8226_l3: l3 {
 			regulator-min-microvolt = <750000>;
-			regulator-max-microvolt = <1337500>;
+			regulator-max-microvolt = <1350000>;
 			regulator-always-on;
 		};
 

arch/arm/boot/dts/qcom/qcom-msm8926-samsung-matisselte.dts

@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) 2022, Matti Lehtimäki <matti.lehtimaki@gmail.com>
+ * Copyright (c) 2023, Stefan Hansson <newbyte@postmarketos.org>
+ */
+
+/dts-v1/;
+
+#include "qcom-msm8226-samsung-matisse-common.dtsi"
+
+/ {
+	model = "Samsung Galaxy Tab 4 10.1 LTE";
+	compatible = "samsung,matisselte", "qcom,msm8926", "qcom,msm8226";
+	chassis-type = "tablet";
+
+	reg_tsp_3p3v: regulator-tsp-3p3v {
+		compatible = "regulator-fixed";
+		regulator-name = "tsp_3p3v";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpio = <&tlmm 32 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&tsp_en1_default_state>;
+	};
+};
+
+&tlmm {
+	tsp_en1_default_state: tsp-en1-default-state {
+		pins = "gpio32";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+};