Message-ID: <20240219214643.197116-3-bryant@mai.rs>
Date: Mon, 19 Feb 2024 22:43:17 +0100
From: Bryant Mairs <bryant@....rs>
To: Bjorn Andersson <andersson@...nel.org>,
	Konrad Dybcio <konrad.dybcio@...aro.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	linux-arm-msm@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	luca@...tu.xyz
Cc: ~postmarketos/upstreaming@...ts.sr.ht,
	phone-devel@...r.kernel.org,
	Linus Walleij <linus.walleij@...aro.org>
Subject: [PATCH v3 2/2] ARM: dts: qcom: Add support for Samsung Galaxy Tab 4 8.0 Wi-Fi

Add support for this tablet based on the MSM8226 SoC, codenamed
"milletwifi".

Acked-by: Linus Walleij <linus.walleij@...aro.org>
Reviewed-by: Luca Weiss <luca@...tu.xyz>
Signed-off-by: Bryant Mairs <bryant@....rs>
---
 arch/arm/boot/dts/qcom/Makefile               |   1 +
 .../qcom/qcom-apq8026-samsung-milletwifi.dts  | 573 ++++++++++++++++++
 2 files changed, 574 insertions(+)
 create mode 100644 arch/arm/boot/dts/qcom/qcom-apq8026-samsung-milletwifi.dts

diff --git a/arch/arm/boot/dts/qcom/Makefile b/arch/arm/boot/dts/qcom/Makefile
index 9cc1e14e6cd0..730d98c2c715 100644
--- a/arch/arm/boot/dts/qcom/Makefile
+++ b/arch/arm/boot/dts/qcom/Makefile
@@ -5,6 +5,7 @@ dtb-$(CONFIG_ARCH_QCOM) += \
 	qcom-apq8026-huawei-sturgeon.dtb \
 	qcom-apq8026-lg-lenok.dtb \
 	qcom-apq8026-samsung-matisse-wifi.dtb \
+	qcom-apq8026-samsung-milletwifi.dtb \
 	qcom-apq8060-dragonboard.dtb \
 	qcom-apq8064-cm-qs600.dtb \
 	qcom-apq8064-ifc6410.dtb \
diff --git a/arch/arm/boot/dts/qcom/qcom-apq8026-samsung-milletwifi.dts b/arch/arm/boot/dts/qcom/qcom-apq8026-samsung-milletwifi.dts
new file mode 100644
index 000000000000..7d519156d91d
--- /dev/null
+++ b/arch/arm/boot/dts/qcom/qcom-apq8026-samsung-milletwifi.dts
@@ -0,0 +1,573 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) 2022, Matti Lehtimäki <matti.lehtimaki@...il.com>
+ * Copyright (c) 2023, Bryant Mairs <bryant@....rs>
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/power/summit,smb347-charger.h>
+#include "qcom-msm8226.dtsi"
+#include "pm8226.dtsi"
+
+/delete-node/ &adsp_region;
+/delete-node/ &smem_region;
+
+/ {
+	model = "Samsung Galaxy Tab 4 8.0 Wi-Fi";
+	compatible = "samsung,milletwifi", "qcom,apq8026";
+	chassis-type = "tablet";
+
+	aliases {
+		display0 = &framebuffer0;
+		mmc0 = &sdhc_1; /* SDC1 eMMC slot */
+		mmc1 = &sdhc_2; /* SDC2 SD card slot */
+	};
+
+	chosen {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		stdout-path = "display0";
+
+		framebuffer0: framebuffer@...0000 {
+			compatible = "simple-framebuffer";
+			reg = <0x03200000 0x800000>;
+			width = <800>;
+			height = <1280>;
+			stride = <(800 * 3)>;
+			format = "r8g8b8";
+		};
+	};
+
+	gpio-hall-sensor {
+		compatible = "gpio-keys";
+
+		event-hall-sensor {
+			label = "Cover";
+			gpios = <&tlmm 37 GPIO_ACTIVE_LOW>;
+			linux,input-type = <EV_SW>;
+			linux,code = <SW_LID>;
+			debounce-interval = <15>;
+			linux,can-disable;
+			wakeup-source;
+		};
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+		autorepeat;
+
+		key-home {
+			label = "Home";
+			gpios = <&tlmm 108 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_HOMEPAGE>;
+			debounce-interval = <15>;
+		};
+
+		key-volume-down {
+			label = "Volume Down";
+			gpios = <&tlmm 107 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_VOLUMEDOWN>;
+			debounce-interval = <15>;
+		};
+
+		key-volume-up {
+			label = "Volume Up";
+			gpios = <&tlmm 106 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_VOLUMEUP>;
+			debounce-interval = <15>;
+		};
+	};
+
+	i2c-backlight {
+		compatible = "i2c-gpio";
+		sda-gpios = <&tlmm 20 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
+		scl-gpios = <&tlmm 21 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
+
+		pinctrl-0 = <&backlight_i2c_default_state>;
+		pinctrl-names = "default";
+
+		i2c-gpio,delay-us = <4>;
+
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		backlight@2c {
+			compatible = "ti,lp8556";
+			reg = <0x2c>;
+			enable-supply = <&reg_backlight_vddio>;
+
+			dev-ctrl = /bits/ 8 <0x80>;
+			init-brt = /bits/ 8 <0x3f>;
+
+			/*
+			 * Change transition duration: 200ms, Change
+			 * transition strength: heavy, PWM hysteresis:
+			 * 1-bit w/ 8-bit resolution
+			 */
+			rom-a3h {
+				rom-addr = /bits/ 8 <0xa3>;
+				rom-val = /bits/ 8 <0x5e>;
+			};
+
+			/*
+			 * PWM phase configuration: 3-phase/3 drivers
+			 * (0, 120deg, 240deg, -, -, -),
+			 * PWM frequency: 9616Hz (10-bit)
+			 */
+			rom-a5h {
+				rom-addr = /bits/ 8 <0xa5>;
+				rom-val = /bits/ 8 <0x34>;
+			};
+
+			/*
+			 * Enable LED drivers 2 & 3, Boot inductor
+			 * current limit: 1.5A/2.6A
+			 */
+			rom-a7h {
+				rom-addr = /bits/ 8 <0xa7>;
+				rom-val = /bits/ 8 <0xfa>;
+			};
+		};
+	};
+
+	reg_backlight_vddio: regulator-backlight-vddio {
+		compatible = "regulator-fixed";
+		regulator-name = "backlight_vddio";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+
+		gpio = <&tlmm 74 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-0 = <&backlight_vddio_default_state>;
+		pinctrl-names = "default";
+	};
+
+	reg_tsp_1p8v: regulator-tsp-1p8v {
+		compatible = "regulator-fixed";
+		regulator-name = "tsp_1p8v";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+
+		gpio = <&tlmm 114 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-0 = <&tsp_en1_default_state>;
+		pinctrl-names = "default";
+	};
+
+	reg_tsp_3p3v: regulator-tsp-3p3v {
+		compatible = "regulator-fixed";
+		regulator-name = "tsp_3p3v";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpio = <&tlmm 31 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-0 = <&tsp_en_default_state>;
+		pinctrl-names = "default";
+	};
+
+	reserved-memory {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		framebuffer@...0000 {
+			reg = <0x03200000 0x800000>;
+			no-map;
+		};
+
+		mpss_region: mpss@...0000 {
+			reg = <0x08400000 0x1f00000>;
+			no-map;
+		};
+
+		mba_region: mba@...0000 {
+			reg = <0x0a300000 0x100000>;
+			no-map;
+		};
+
+		reserved@...0000 {
+			reg = <0x0cb00000 0x700000>;
+			no-map;
+		};
+
+		wcnss_region: wcnss@...0000 {
+			reg = <0x0d200000 0x700000>;
+			no-map;
+		};
+
+		adsp_region: adsp@...0000 {
+			reg = <0x0d900000 0x1800000>;
+			no-map;
+		};
+
+		venus@...0000 {
+			reg = <0x0f100000 0x500000>;
+			no-map;
+		};
+
+		smem_region: smem@...0000 {
+			reg = <0x0fa00000 0x100000>;
+			no-map;
+		};
+
+		reserved@...0000 {
+			reg = <0x0fb00000 0x260000>;
+			no-map;
+		};
+
+		rfsa@...0000 {
+			reg = <0x0fd60000 0x20000>;
+			no-map;
+		};
+
+		rmtfs@...0000 {
+			compatible = "qcom,rmtfs-mem";
+			reg = <0x0fd80000 0x180000>;
+			no-map;
+
+			qcom,client-id = <1>;
+		};
+	};
+};
+
+&blsp1_i2c2 {
+	status = "okay";
+
+	accelerometer@1d {
+		compatible = "st,lis2hh12";
+		reg = <0x1d>;
+
+		interrupts-extended = <&tlmm 54 IRQ_TYPE_LEVEL_HIGH>;
+
+		pinctrl-0 = <&accel_int_default_state>;
+		pinctrl-names = "default";
+
+		vdd-supply = <&pm8226_l19>;
+		vddio-supply = <&pm8226_lvs1>;
+
+		mount-matrix = "0", "1", "0",
+			       "-1", "0", "0",
+			       "0", "0", "1";
+
+		st,drdy-int-pin = <1>;
+	};
+};
+
+&blsp1_i2c3 {
+	status = "okay";
+
+	charger@6a {
+		compatible = "summit,smb358";
+		reg = <0x6a>;
+
+		interrupts-extended = <&tlmm 115 IRQ_TYPE_EDGE_FALLING>;
+
+		pinctrl-0 = <&charger_int_default_state>;
+		pinctrl-names = "default";
+
+		summit,enable-usb-charging;
+		summit,enable-charge-control = <SMB3XX_CHG_ENABLE_SW>;
+		summit,fast-voltage-threshold-microvolt = <3000000>;
+		summit,chip-temperature-threshold-celsius = <130>;
+		summit,usb-current-limit-microamp = <1500000>;
+	};
+};
+
+&blsp1_i2c4 {
+	status = "okay";
+
+	muic: usb-switch@25 {
+		compatible = "siliconmitus,sm5502-muic";
+		reg = <0x25>;
+
+		interrupts-extended = <&tlmm 67 IRQ_TYPE_EDGE_FALLING>;
+
+		pinctrl-0 = <&muic_int_default_state>;
+		pinctrl-names = "default";
+	};
+};
+
+&blsp1_i2c5 {
+	status = "okay";
+
+	touchscreen@48 {
+		compatible = "melfas,mms252", "melfas,mms114";
+		reg = <0x48>;
+		interrupts-extended = <&tlmm 17 IRQ_TYPE_EDGE_FALLING>;
+		touchscreen-size-x = <800>;
+		touchscreen-size-y = <1280>;
+		avdd-supply = <&reg_tsp_3p3v>;
+		vdd-supply = <&reg_tsp_1p8v>;
+		linux,keycodes = <KEY_APPSELECT KEY_BACK>;
+
+		pinctrl-0 = <&tsp_int_rst_default_state>;
+		pinctrl-names = "default";
+	};
+};
+
+&rpm_requests {
+	regulators {
+		compatible = "qcom,rpm-pm8226-regulators";
+
+		pm8226_s3: s3 {
+			regulator-min-microvolt = <1200000>;
+			regulator-max-microvolt = <1300000>;
+		};
+
+		pm8226_s4: s4 {
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <1800000>;
+		};
+
+		pm8226_s5: s5 {
+			regulator-min-microvolt = <1150000>;
+			regulator-max-microvolt = <1150000>;
+		};
+
+		pm8226_l1: l1 {
+			regulator-min-microvolt = <1225000>;
+			regulator-max-microvolt = <1225000>;
+		};
+
+		pm8226_l2: l2 {
+			regulator-min-microvolt = <1200000>;
+			regulator-max-microvolt = <1200000>;
+		};
+
+		pm8226_l3: l3 {
+			regulator-min-microvolt = <750000>;
+			regulator-max-microvolt = <1337500>;
+			regulator-always-on;
+		};
+
+		pm8226_l4: l4 {
+			regulator-min-microvolt = <1200000>;
+			regulator-max-microvolt = <1200000>;
+		};
+
+		pm8226_l5: l5 {
+			regulator-min-microvolt = <1200000>;
+			regulator-max-microvolt = <1200000>;
+		};
+
+		pm8226_l6: l6 {
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <1800000>;
+			regulator-always-on;
+		};
+
+		pm8226_l7: l7 {
+			regulator-min-microvolt = <1850000>;
+			regulator-max-microvolt = <1850000>;
+		};
+
+		pm8226_l8: l8 {
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <1800000>;
+			regulator-always-on;
+		};
+
+		pm8226_l9: l9 {
+			regulator-min-microvolt = <2050000>;
+			regulator-max-microvolt = <2050000>;
+		};
+
+		pm8226_l10: l10 {
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <1800000>;
+		};
+
+		pm8226_l12: l12 {
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <1800000>;
+		};
+
+		pm8226_l14: l14 {
+			regulator-min-microvolt = <2750000>;
+			regulator-max-microvolt = <2750000>;
+		};
+
+		pm8226_l15: l15 {
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <3300000>;
+		};
+
+		pm8226_l16: l16 {
+			regulator-min-microvolt = <3000000>;
+			regulator-max-microvolt = <3350000>;
+		};
+
+		pm8226_l17: l17 {
+			regulator-min-microvolt = <2950000>;
+			regulator-max-microvolt = <2950000>;
+
+			regulator-system-load = <200000>;
+			regulator-allow-set-load;
+			regulator-always-on;
+		};
+
+		pm8226_l18: l18 {
+			regulator-min-microvolt = <2950000>;
+			regulator-max-microvolt = <2950000>;
+		};
+
+		pm8226_l19: l19 {
+			regulator-min-microvolt = <2850000>;
+			regulator-max-microvolt = <3000000>;
+		};
+
+		pm8226_l20: l20 {
+			regulator-min-microvolt = <3075000>;
+			regulator-max-microvolt = <3075000>;
+		};
+
+		pm8226_l21: l21 {
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <2950000>;
+		};
+
+		pm8226_l22: l22 {
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <3000000>;
+		};
+
+		pm8226_l23: l23 {
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <3300000>;
+		};
+
+		pm8226_l24: l24 {
+			regulator-min-microvolt = <1300000>;
+			regulator-max-microvolt = <1350000>;
+		};
+
+		pm8226_l25: l25 {
+			regulator-min-microvolt = <1775000>;
+			regulator-max-microvolt = <2125000>;
+		};
+
+		pm8226_l26: l26 {
+			regulator-min-microvolt = <1225000>;
+			regulator-max-microvolt = <1300000>;
+		};
+
+		pm8226_l27: l27 {
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <1800000>;
+		};
+
+		pm8226_l28: l28 {
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <2950000>;
+		};
+
+		pm8226_lvs1: lvs1 {};
+	};
+};
+
+&sdhc_1 {
+	vmmc-supply = <&pm8226_l17>;
+	vqmmc-supply = <&pm8226_l6>;
+
+	bus-width = <8>;
+	non-removable;
+
+	status = "okay";
+};
+
+&sdhc_2 {
+	vmmc-supply = <&pm8226_l18>;
+	vqmmc-supply = <&pm8226_l21>;
+
+	bus-width = <4>;
+	cd-gpios = <&tlmm 38 GPIO_ACTIVE_LOW>;
+
+	pinctrl-0 = <&sdhc2_default_state>, <&sdc2_cd_default_state>;
+	pinctrl-names = "default";
+
+	status = "okay";
+};
+
+&tlmm {
+	accel_int_default_state: accel-int-default-state {
+		pins = "gpio54";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
+	backlight_i2c_default_state: backlight-i2c-default-state {
+		pins = "gpio20", "gpio21";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
+	backlight_vddio_default_state: backlight-vddio-default-state {
+		pins = "gpio74";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
+	charger_int_default_state: charger-int-default-state {
+		pins = "gpio115";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
+	muic_int_default_state: muic-int-default-state {
+		pins = "gpio67";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
+	sdc2_cd_default_state: sdc2-cd-default-state {
+		pins = "gpio38";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
+	tsp_en_default_state: tsp-en-default-state {
+		pins = "gpio31";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
+	tsp_en1_default_state: tsp-en1-default-state {
+		pins = "gpio114";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
+	tsp_int_rst_default_state: tsp-int-rst-default-state {
+		pins = "gpio17";
+		function = "gpio";
+		drive-strength = <10>;
+		bias-pull-up;
+	};
+};
+
+&usb {
+	extcon = <&muic>, <&muic>;
+	status = "okay";
+};
+
+&usb_hs_phy {
+	extcon = <&muic>;
+	v1p8-supply = <&pm8226_l10>;
+	v3p3-supply = <&pm8226_l20>;
+};
-- 
2.43.0

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