src/arm/st/ste-ux500-samsung-golden.dts

// SPDX-License-Identifier: GPL-2.0-only
/dts-v1/;

#include "ste-db8500.dtsi"
#include "ste-ab8505.dtsi"
#include "ste-dbx5x0-pinctrl.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/leds/common.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/interrupt-controller/irq.h>

/*
 * Note: This device tree cannot be booted directly with the Samsung bootloader.
 * You need an intermediate, device-tree compatible bootloader
 * that locks the L2 cache. Otherwise the kernel will crash after decompression.
 *
 * There is a port of (mainline) U-Boot, see
 * https://wiki.postmarketos.org/wiki/ST-Ericsson_NovaThor_U8500#U-Boot
 */
/ {
	model = "Samsung Galaxy S III mini (GT-I8190)";
	compatible = "samsung,golden", "st-ericsson,u8500";

	chosen {
		stdout-path = &serial2;
	};

	battery: battery {
		compatible = "samsung,eb-l1m7flu";
	};

	thermal-zones {
		battery-thermal {
			/* This zone will be polled by the battery temperature code */
			polling-delay = <0>;
			polling-delay-passive = <0>;
			thermal-sensors = <&bat_therm>;

			trips {
				battery-crit-hi {
					temperature = <70000>;
					hysteresis = <2000>;
					type = "critical";
				};
			};
		};
	};

	bat_therm: thermistor {
		compatible = "samsung,1404-001221";
		io-channels = <&gpadc 0x02>; /* BatTemp */
		pullup-uv = <1800000>;
		pullup-ohm = <230000>;
		pulldown-ohm = <0>;
		#thermal-sensor-cells = <0>;
	};

	i2c-gpio-0 {
		compatible = "i2c-gpio";
		sda-gpios = <&gpio2 14 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
		scl-gpios = <&gpio2 13 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;

		pinctrl-names = "default";
		pinctrl-0 = <&i2c_gpio_0_default>;

		#address-cells = <1>;
		#size-cells = <0>;

		touchkey@20 {
			compatible = "coreriver,tc360-touchkey";
			reg = <0x20>;
			vdd-supply = <&ab8500_ldo_aux4_reg>;
			vcc-supply = <&ab8500_ldo_aux6_reg>;

			interrupt-parent = <&gpio2>;
			interrupts = <15 IRQ_TYPE_EDGE_FALLING>;

			pinctrl-names = "default";
			pinctrl-0 = <&touchkey_default>;
			linux,keycodes = <KEY_MENU KEY_BACK>;
		};
	};

	i2c-gpio-1 {
		compatible = "i2c-gpio";
		sda-gpios = <&gpio4 24 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
		scl-gpios = <&gpio4 23 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;

		pinctrl-names = "default";
		pinctrl-0 = <&i2c_gpio_1_default>;

		#address-cells = <1>;
		#size-cells = <0>;

		magnetometer@c {
			compatible = "alps,hscdtd008a";
			reg = <0x0c>;

			avdd-supply = <&ab8500_ldo_aux1_reg>;
			dvdd-supply = <&ab8500_ldo_aux8_reg>;
		};
	};

	soc {
		/* External Micro SD card slot */
		mmc@80126000 {
			status = "okay";

			arm,primecell-periphid = <0x10480180>;
			max-frequency = <100000000>;
			bus-width = <4>;

			non-removable;
			/*
			 * Unfortunately, there is no way to enable the UHS
			 * modes due to a limitation of the SD level translator:
			 * It will either translate to 2.9V or disconnect the
			 * DATA lines, so switching to 1.8V signal voltage fails.
			 */
			cap-sd-highspeed;
			cap-mmc-highspeed;
			st,sig-pin-fbclk;
			full-pwr-cycle;

			vmmc-supply = <&ab8500_ldo_aux3_reg>;
			vqmmc-supply = <&sd_level_translator>;

			pinctrl-names = "default", "sleep";
			pinctrl-0 = <&mc0_a_2_default>;
			pinctrl-1 = <&mc0_a_2_sleep>;
		};

		/* WLAN SDIO */
		mmc@80118000 {
			status = "okay";

			arm,primecell-periphid = <0x10480180>;
			max-frequency = <50000000>;
			bus-width = <4>;

			non-removable;
			cap-sd-highspeed;

			vmmc-supply = <&wl_reg_on>;

			pinctrl-names = "default", "sleep";
			pinctrl-0 = <&mc1_a_2_default>;
			pinctrl-1 = <&mc1_a_2_sleep>;

			#address-cells = <1>;
			#size-cells = <0>;

			wifi@1 {
				compatible = "brcm,bcm4334-fmac", "brcm,bcm4329-fmac";
				reg = <1>;

				/* GPIO216 (WLAN_HOST_WAKE) */
				interrupt-parent = <&gpio6>;
				interrupts = <24 IRQ_TYPE_EDGE_FALLING>;
				interrupt-names = "host-wake";

				pinctrl-names = "default";
				pinctrl-0 = <&wlan_default>;
			};
		};

		/* eMMC */
		mmc@80005000 {
			status = "okay";

			arm,primecell-periphid = <0x10480180>;
			max-frequency = <100000000>;
			bus-width = <8>;

			non-removable;
			cap-mmc-highspeed;
			mmc-ddr-1_8v;
			no-sdio;
			no-sd;

			vmmc-supply = <&vmem_3v3>;

			pinctrl-names = "default", "sleep";
			pinctrl-0 = <&mc2_a_1_default>;
			pinctrl-1 = <&mc2_a_1_sleep>;
		};

		/* BT UART */
		serial@80120000 {
			status = "okay";

			pinctrl-names = "default", "sleep";
			pinctrl-0 = <&u0_a_1_default>;
			pinctrl-1 = <&u0_a_1_sleep>;

			bluetooth {
				/* BCM4334B0 actually */
				compatible = "brcm,bcm4330-bt";
				/* GPIO222 (BT_VREG_ON) */
				shutdown-gpios = <&gpio6 30 GPIO_ACTIVE_HIGH>;
				/* GPIO199 (BT_WAKE) */
				device-wakeup-gpios = <&gpio6 7 GPIO_ACTIVE_HIGH>;
				/* GPIO97 (BT_HOST_WAKE) */
				host-wakeup-gpios = <&gpio3 1 GPIO_ACTIVE_HIGH>;

				pinctrl-names = "default";
				pinctrl-0 = <&bluetooth_default>;
			};
		};

		/* GPF UART */
		serial@80121000 {
			status = "okay";

			pinctrl-names = "default", "sleep";
			pinctrl-0 = <&u1rxtx_a_1_default &u1ctsrts_a_1_default>;
			pinctrl-1 = <&u1rxtx_a_1_sleep &u1ctsrts_a_1_sleep>;
		};

		/* Debugging console UART */
		serial@80007000 {
			status = "okay";

			pinctrl-names = "default", "sleep";
			pinctrl-0 = <&u2rxtx_c_1_default>;
			pinctrl-1 = <&u2rxtx_c_1_sleep>;
		};

		i2c@80004000 {
			status = "okay";

			pinctrl-names = "default", "sleep";
			pinctrl-0 = <&i2c0_a_1_default>;
			pinctrl-1 = <&i2c0_a_1_sleep>;

			proximity@44 {
				compatible = "sharp,gp2ap002s00f";
				reg = <0x44>;

				/* GPIO146 (PS_INT) */
				interrupt-parent = <&gpio4>;
				interrupts = <18 IRQ_TYPE_EDGE_FALLING>;

				vdd-supply = <&ab8500_ldo_aux1_reg>;
				vio-supply = <&ab8500_ldo_aux8_reg>;

				pinctrl-names = "default";
				pinctrl-0 = <&proximity_default>;

				sharp,proximity-far-hysteresis = <0x40>;
				sharp,proximity-close-hysteresis = <0x0f>;
			};
		};

		i2c@80128000 {
			status = "okay";

			pinctrl-names = "default", "sleep";
			pinctrl-0 = <&i2c2_b_2_default>;
			pinctrl-1 = <&i2c2_b_2_sleep>;

			imu@68 {
				compatible = "invensense,mpu6050";
				reg = <0x68>;

				/* GPIO206 (ACC_INT) */
				interrupt-parent = <&gpio6>;
				interrupts = <14 IRQ_TYPE_EDGE_RISING>;

				mount-matrix = "0", "1", "0",
					      "-1", "0", "0",
					       "0", "0", "1";

				vdd-supply = <&ab8500_ldo_aux1_reg>;
				vddio-supply = <&ab8500_ldo_aux8_reg>;

				pinctrl-names = "default";
				pinctrl-0 = <&imu_default>;
			};
		};

		i2c@80110000 {
			status = "okay";

			pinctrl-names = "default", "sleep";
			pinctrl-0 = <&i2c3_c_2_default>;
			pinctrl-1 = <&i2c3_c_2_sleep>;

			touchscreen@4a {
				compatible = "atmel,maxtouch";
				reg = <0x4a>;

				/* GPIO218 (TSP_INT_1V8) */
				interrupt-parent = <&gpio6>;
				interrupts = <26 IRQ_TYPE_EDGE_FALLING>;

				/* VDDA is "analog supply", 2.57-3.47 V */
				vdda-supply = <&ab8500_ldo_aux2_reg>;
				/* VDD is "digital supply" 1.71-3.47V */
				vdd-supply = <&ab8500_ldo_aux5_reg>;

				pinctrl-names = "default";
				pinctrl-0 = <&tsp_default>;
			};
		};

		prcmu@80157000 {
			ab8505 {
				phy {
					pinctrl-names = "default", "sleep";
					pinctrl-0 = <&usb_a_1_default>;
					pinctrl-1 = <&usb_a_1_sleep>;
				};

				ab8500_fg {
					line-impedance-micro-ohms = <36000>;
				};

				regulator {
					ab8500_ldo_aux1 {
						regulator-name = "sensor_3v";
						regulator-min-microvolt = <3000000>;
						regulator-max-microvolt = <3000000>;
					};

					ab8500_ldo_aux2 {
						regulator-name = "vreg_tsp_a3v3";
						regulator-min-microvolt = <3300000>;
						regulator-max-microvolt = <3300000>;
					};

					ab8500_ldo_aux3 {
						regulator-name = "vdd_tf_2v91";
					};

					ab8500_ldo_aux4 {
						regulator-name = "key_led_3.3v";
						regulator-min-microvolt = <3300000>;
						regulator-max-microvolt = <3300000>;
					};

					ab8500_ldo_aux5 {
						regulator-name = "vreg_tsp_1v8";
						regulator-min-microvolt = <1800000>;
						regulator-max-microvolt = <1800000>;
					};

					ab8500_ldo_aux6 {
						regulator-name = "touch_key_2.2v";
						regulator-min-microvolt = <2200000>;
						regulator-max-microvolt = <2200000>;
					};

					ab8500_ldo_aux8 {
						regulator-name = "sensor_1v8";
					};
				};
			};
		};

		mcde@a0350000 {
			status = "okay";
			pinctrl-names = "default";
			pinctrl-0 = <&dsi_default_mode>;

			dsi@a0351000 {
				panel@0 {
					compatible = "samsung,s6e63m0";
					reg = <0>;
					max-brightness = <15>;
					vdd3-supply = <&panel_reg_3v0>;
					vci-supply = <&panel_reg_1v8>;
					reset-gpios = <&gpio4 11 GPIO_ACTIVE_LOW>;
					/* ESD (electrostatic discharge) detection interrupt */
					interrupt-parent = <&gpio2>;
					interrupts = <18 IRQ_TYPE_EDGE_RISING>;
					interrupt-names = "esd";
					pinctrl-names = "default";
					pinctrl-0 = <&display_default_mode>;
				};
			};
		};
	};

	gpio-keys {
		compatible = "gpio-keys";

		pinctrl-names = "default";
		pinctrl-0 = <&gpio_keys_default>;

		label = "GPIO Buttons";

		volume-up {
			label = "Volume Up";
			/* GPIO67 (VOL_UP) */
			gpios = <&gpio2 3 GPIO_ACTIVE_LOW>;
			linux,code = <KEY_VOLUMEUP>;
		};

		volume-down {
			label = "Volume Down";
			/* GPIO92 (VOL_DOWN) */
			gpios = <&gpio2 28 GPIO_ACTIVE_LOW>;
			linux,code = <KEY_VOLUMEDOWN>;
		};

		home {
			label = "Home";
			/* GPIO91 (HOME_KEY) */
			gpios = <&gpio2 27 GPIO_ACTIVE_LOW>;
			linux,code = <KEY_HOMEPAGE>;
		};
	};

	/* Richtek RT8515GQW Flash LED Driver IC */
	flash {
		compatible = "richtek,rt8515";
		/* GPIO 140 */
		enf-gpios = <&gpio4 12 GPIO_ACTIVE_HIGH>;
		/* GPIO 141 */
		ent-gpios = <&gpio4 13 GPIO_ACTIVE_HIGH>;
		/*
		 * RFS is 16 kOhm and RTS is 100 kOhm giving
		 * the flash max current 343mA and torch max
		 * current 55 mA.
		 */
		richtek,rfs-ohms = <16000>;
		richtek,rts-ohms = <100000>;
		pinctrl-names = "default";
		pinctrl-0 = <&gpio_flash_default_mode>;

		led {
			function = LED_FUNCTION_FLASH;
			color = <LED_COLOR_ID_WHITE>;
			flash-max-timeout-us = <250000>;
			flash-max-microamp = <343750>;
			led-max-microamp = <55000>;
		};
	};

	vibrator {
		compatible = "gpio-vibrator";
		/* GPIO195 (MOT_EN) */
		enable-gpios = <&gpio6 3 GPIO_ACTIVE_HIGH>;

		pinctrl-names = "default";
		pinctrl-0 = <&vibrator_default>;
	};

	/* External LDO for eMMC */
	vmem_3v3: regulator-vmem {
		compatible = "regulator-fixed";

		regulator-name = "vmem_3v3";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-boot-on;

		startup-delay-us = <200>;

		/* GPIO223 (MEM_LDO_EN) */
		gpio = <&gpio6 31 GPIO_ACTIVE_HIGH>;
		enable-active-high;

		pinctrl-names = "default";
		pinctrl-0 = <&mem_ldo_default>;
	};

	/* TI TXS0206-29 level translator for 2.9 V */
	sd_level_translator: regulator-sd-level-translator {
		compatible = "regulator-fixed";

		regulator-name = "sd-level-translator";
		regulator-min-microvolt = <2900000>;
		regulator-max-microvolt = <2900000>;

		startup-delay-us = <200>;

		/* GPIO87 (TXS0206-29_EN) */
		gpios = <&gpio2 23 GPIO_ACTIVE_HIGH>;
		enable-active-high;

		pinctrl-names = "default";
		pinctrl-0 = <&sd_level_translator_default>;
	};

	/*
	 * WL_REG_ON takes WLAN out of reset and enables the internal regulators.
	 * The voltage specified here is only used to determine the OCR mask,
	 * the BCM chip is actually connected directly to VBAT.
	 */
	wl_reg_on: regulator-wl-reg-on {
		compatible = "regulator-fixed";

		regulator-name = "wl-reg-on";
		regulator-min-microvolt = <3000000>;
		regulator-max-microvolt = <3000000>;

		startup-delay-us = <100000>;

		/* GPIO215 (WLAN_EN) */
		gpio = <&gpio6 23 GPIO_ACTIVE_HIGH>;
		enable-active-high;

		pinctrl-names = "default";
		pinctrl-0 = <&wlan_en_default>;
	};

	/* MIC5366 GPIO-controlled regulator */
	panel_reg_1v8: regulator-panel-1v8 {
		compatible = "regulator-fixed";

		regulator-name = "panel-fixed-supply";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
		/* GPIO219 */
		gpio = <&gpio6 27 GPIO_ACTIVE_HIGH>;

		startup-delay-us = <200>;
		enable-active-high;

		pinctrl-names = "default";
		pinctrl-0 = <&panel_reg_default_mode>;
	};

	/* MIC5366 GPIO-controlled regulator */
	panel_reg_3v0: regulator-panel-3v0 {
		compatible = "regulator-fixed";

		regulator-name = "panel-fixed-supply";
		regulator-min-microvolt = <3000000>;
		regulator-max-microvolt = <3000000>;
		/* GPIO219 */
		gpio = <&gpio6 27 GPIO_ACTIVE_HIGH>;

		startup-delay-us = <200>;
		enable-active-high;

		pinctrl-names = "default";
		pinctrl-0 = <&panel_reg_default_mode>;
	};
};

&pinctrl {
	gpio-keys {
		gpio_keys_default: gpio_keys_default {
			golden_cfg1 {
				pins = "GPIO67",	/* VOL_UP */
				       "GPIO91",	/* HOME_KEY */
				       "GPIO92";	/* VOL_DOWN */
				ste,config = <&gpio_in_pu>;
			};
		};
	};

	i2c-gpio-0 {
		i2c_gpio_0_default: i2c_gpio_0 {
			golden_cfg1 {
				pins = "GPIO77",	/* TOUCHKEY_SCL */
				       "GPIO78";	/* TOUCHKEY_SDA */
				ste,config = <&gpio_in_nopull>;
			};
		};
	};

	flash {
		gpio_flash_default_mode: flash_default {
			golden_cfg1 {
				pins = "GPIO140_B11", "GPIO141_C12";
				ste,config = <&gpio_out_lo>;
			};
		};
	};

	i2c-gpio-1 {
		i2c_gpio_1_default: i2c_gpio_1 {
			golden_cfg1 {
				pins = "GPIO151",	/* COMP_SCL */
				       "GPIO152";	/* COMP_SDA */
				ste,config = <&gpio_in_nopull>;
			};
		};
	};

	touchkey {
		touchkey_default: touchkey_default {
			golden_cfg1 {
				pins = "GPIO79";	/* TOUCHKEY_INT */
				ste,config = <&gpio_in_nopull>;
			};
		};
	};

	sdi0 {
		sd_level_translator_default: sd_level_translator_default {
			golden_cfg1 {
				pins = "GPIO87_B3";	/* TXS0206-29_EN */
				ste,config = <&gpio_out_lo>;
			};
		};
	};

	sdi2 {
		mem_ldo_default: mem_ldo_default {
			golden_cfg1 {
				pins = "GPIO223_AH9";	/* MEM_LDO_EN */
				ste,config = <&gpio_out_hi>;
			};
		};
	};

	mcde {
		dsi_default_mode: dsi_default {
			default_mux1 {
				/* Mux in VSI0 used for DSI TE */
				function = "lcd";
				groups =
				"lcdvsi0_a_1"; /* VSI0 for LCD */
			};
			default_cfg1 {
				pins =
				"GPIO68_E1"; /* VSI0 */
				ste,config = <&in_nopull>;
			};
		};
	};

	display {
		display_default_mode: display_default {
			golden_cfg1 {
				pins = "GPIO139_C9"; /* MIPI_DSI0_RESET_N */
				ste,config = <&gpio_out_lo>;
			};
			golden_cfg2 {
				pins = "GPIO82_C1"; /* LDI_ESD_DET */
				ste,config = <&gpio_in_pu>;
			};
		};
		panel_reg_default_mode: panel_reg_default {
			golden_cfg1 {
				pins = "GPIO219_AG10"; /* LCD_PWR_EN */
				ste,config = <&gpio_out_lo>;
			};
		};
	};

	proximity {
		proximity_default: proximity_default {
			golden_cfg1 {
				pins = "GPIO146_D13";	/* PS_INT */
				ste,config = <&gpio_in_nopull>;
			};
		};
	};

	imu {
		imu_default: imu_default {
			golden_cfg1 {
				pins = "GPIO206_AG24";	/* ACC_INT */
				ste,config = <&gpio_in_pd>;
			};
		};
	};

	tsp {
		tsp_default: tsp_default {
			golden_cfg1 {
				pins = "GPIO218_AH11";	/* TSP_INT_1V8 */
				ste,config = <&gpio_in_nopull>;
			};
		};
	};

	wlan {
		wlan_default: wlan_default {
			golden_cfg1 {
				pins = "GPIO216_AG12";	/* WLAN_HOST_WAKE */
				ste,config = <&gpio_in_pd>;
			};
		};

		wlan_en_default: wlan_en_default {
			golden_cfg1 {
				pins = "GPIO215_AH13";	/* WLAN_EN */
				ste,config = <&gpio_out_lo>;
			};
		};
	};

	bluetooth {
		bluetooth_default: bluetooth_default {
			golden_cfg1 {
				pins = "GPIO199_AH23",	/* BT_WAKE */
				       "GPIO222_AJ9";	/* BT_VREG_ON */
				ste,config = <&gpio_out_lo>;
			};
			golden_cfg2 {
				pins = "GPIO97_D9";	/* BT_HOST_WAKE */
				ste,config = <&gpio_in_nopull>;
			};
		};
	};

	vibrator {
		vibrator_default: vibrator_default {
			golden_cfg1 {
				pins = "GPIO195_AG28";	/* MOT_EN */
				ste,config = <&gpio_out_lo>;
			};
		};
	};
};

&ab8505_gpio {
	/* Hog a few default settings */
	pinctrl-names = "default";
	pinctrl-0 = <&gpio_default>;

	gpio {
		gpio_default: gpio_default {
			golden_mux {
				/* Change unused pins to GPIO mode */
				function = "gpio";
				groups = "gpio3_a_1",	/* default: SysClkReq4 */
					 "gpio14_a_1";	/* default: PWMOut1 */
			};
			golden_cfg1 {
				pins = "GPIO11_B17", "GPIO13_D17", "GPIO50_L4";
				bias-disable;
			};
		};
	};
};