[PATCH V2 5/5] arm64: dts: rockchip: Add Indiedroid Nova board

[Chris Morgan <macroalpha82@gmail.com>]

From: Chris Morgan <macromorgan@hotmail.com>

The Indiedroid Nova is an SBC from a sub-brand of Ameridroid that
includes the following hardware:

 - A 40-pin GPIO header
 - 2 USB-A 3.0 ports
 - 2 USB-A 2.0 ports
 - A USB-C 2.0 OTG port (used for USB power delivery)
 - A USB-C 3.0 port that can do display port output.
 - A Micro HDMI 2.1 port.
 - A 1GB ethernet port.
 - An RT8821CS based WiFi/Bluetooth module.
 - A user replaceable eMMC module.
 - An SDMMC card slot.
 - A MIPI DSI connector.
 - A MIPI CSI connector.
 - A 3.5mm TRRS audio jack with microphone input.
 - An 2 pin socket for an RTC battery.
 - A 4 pin socket for a debug port.
 - A power button (connected to PMIC), a reset button (connected to SoC
   reset), a boot button, and a recovery button (both connected to the
   ADC).
 - 4GB, 8GB, or 16GB of system RAM.

This initial devicetree includes support for the WiFi, bluetooth,
analog audio out/in, SDMMC, eMMC, RTC, UART debugging, and has
the regulator values from the schematics. ADC, graphics output, GPU,
USB, and wired ethernet are still pending additional upstream changes.

Analog audio will require changes to handle a difference between the
requested clock frequency of 12288000 and the actual clock freqency
of 12287999 before it will work properly. This will be done in a
subsequent patch series.

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
---
 arch/arm64/boot/dts/rockchip/Makefile         |   1 +
 .../dts/rockchip/rk3588s-indiedroid-nova.dts  | 764 ++++++++++++++++++
 2 files changed, 765 insertions(+)
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3588s-indiedroid-nova.dts

diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
index 2d585bbb8f3a..99f11db8158d 100644
--- a/arch/arm64/boot/dts/rockchip/Makefile
+++ b/arch/arm64/boot/dts/rockchip/Makefile
@@ -94,5 +94,6 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-rock-3a.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-edgeble-neu6a-io.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-evb1-v10.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-rock-5b.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588s-indiedroid-nova.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588s-khadas-edge2.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588s-rock-5a.dtb
diff --git a/arch/arm64/boot/dts/rockchip/rk3588s-indiedroid-nova.dts b/arch/arm64/boot/dts/rockchip/rk3588s-indiedroid-nova.dts
new file mode 100644
index 000000000000..add15cdafe76
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3588s-indiedroid-nova.dts
@@ -0,0 +1,764 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pinctrl/rockchip.h>
+#include <dt-bindings/usb/pd.h>
+#include "rk3588s.dtsi"
+
+/ {
+	model = "Indiedroid Nova";
+	compatible = "indiedroid,nova", "rockchip,rk3588s";
+
+	aliases {
+		mmc0 = &sdhci;
+		mmc1 = &sdmmc;
+		mmc2 = &sdio;
+		serial2 = &uart2;
+	};
+
+	chosen {
+		stdout-path = "serial2:1500000n8";
+	};
+
+	sdio_pwrseq: sdio-pwrseq {
+		compatible = "mmc-pwrseq-simple";
+		clock-names = "ext_clock";
+		clocks = <&rtc_hym8563>;
+		pinctrl-0 = <&wifi_enable_h>;
+		pinctrl-names = "default";
+		post-power-on-delay-ms = <200>;
+		reset-gpios = <&gpio0 RK_PC7 GPIO_ACTIVE_LOW>;
+	};
+
+	sound {
+		compatible = "audio-graph-card";
+		label = "rockchip,es8388-codec";
+		widgets = "Microphone", "Mic Jack",
+			  "Headphone", "Headphones";
+		routing = "LINPUT2", "Mic Jack",
+			  "Headphones", "LOUT1",
+			  "Headphones", "ROUT1";
+		dais = <&i2s0_8ch_p0>;
+	};
+
+	vbus5v0_typec: vbus5v0-typec {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		gpio = <&gpio4 RK_PA5 GPIO_ACTIVE_HIGH>;
+		pinctrl-0 = <&typec5v_pwren>;
+		pinctrl-names = "default";
+		regulator-name = "vbus5v0_typec";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&vcc5v0_usb>;
+	};
+
+	vcc_1v1_nldo_s3: vcc-1v1-nldo-s3 {
+		compatible = "regulator-fixed";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-max-microvolt = <1100000>;
+		regulator-min-microvolt = <1100000>;
+		regulator-name = "vcc_1v1_nldo_s3";
+		vin-supply = <&vcc5v0_sys>;
+	};
+
+	/* Regulator is enabled whenever vcc_1v8_s0 is above 1.6v */
+	vcc_3v3_s0: vcc-3v3-s0 {
+		compatible = "regulator-fixed";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-max-microvolt = <3300000>;
+		regulator-min-microvolt = <3300000>;
+		regulator-name = "vcc_3v3_s0";
+		vin-supply = <&vcc_3v3_s3>;
+
+		regulator-state-mem {
+			regulator-off-in-suspend;
+		};
+	};
+
+	vcc5v0_sys: vcc5v0-sys {
+		compatible = "regulator-fixed";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-max-microvolt = <5000000>;
+		regulator-min-microvolt = <5000000>;
+		regulator-name = "vcc5v0_sys";
+	};
+
+	vcc5v0_usb: vcc5v0-usb {
+		compatible = "regulator-fixed";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-max-microvolt = <5000000>;
+		regulator-min-microvolt = <5000000>;
+		regulator-name = "vcc5v0_usb";
+		vin-supply = <&vcc5v0_usbdcin>;
+	};
+
+	vcc5v0_usbdcin: vcc5v0-usbdcin {
+		compatible = "regulator-fixed";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-max-microvolt = <5000000>;
+		regulator-min-microvolt = <5000000>;
+		regulator-name = "vcc5v0_usbdcin";
+	};
+};
+
+&cpu_l0 {
+	cpu-supply = <&vdd_cpu_lit_s0>;
+};
+
+&cpu_l1 {
+	cpu-supply = <&vdd_cpu_lit_s0>;
+};
+
+&cpu_l2 {
+	cpu-supply = <&vdd_cpu_lit_s0>;
+};
+
+&cpu_l3 {
+	cpu-supply = <&vdd_cpu_lit_s0>;
+};
+
+&cpu_b0{
+	cpu-supply = <&vdd_cpu_big0_s0>;
+};
+
+&cpu_b1{
+	cpu-supply = <&vdd_cpu_big0_s0>;
+};
+
+&cpu_b2{
+	cpu-supply = <&vdd_cpu_big1_s0>;
+};
+
+&cpu_b3{
+	cpu-supply = <&vdd_cpu_big1_s0>;
+};
+
+/*
+ * Add labels for each GPIO pin exposed on the 40 pin header. Note that
+ * voltage of each GPIO pin could be either 3.3v or 1.8v (as noted by
+ * label).
+ */
+&gpio0 {
+	gpio-line-names = /* GPIO0 A0-A7 */
+			  "", "", "", "",
+			  "", "", "", "",
+			  /* GPIO0 B0-B7 */
+			  "", "", "", "",
+			  "", "", "", "",
+			  /* GPIO0 C0-C7 */
+			  "", "", "", "",
+			  "", "", "", "",
+			  /* GPIO0 D0-D7 */
+			  "HEADER_12_1v8", "", "", "HEADER_24_1v8",
+			  "", "", "", "";
+};
+
+&gpio1 {
+	gpio-line-names = /* GPIO1 A0-A7 */
+			  "HEADER_27_3v3", "HEADER_28_3v3", "", "",
+			  "HEADER_29_1v8", "", "HEADER_7_1v8", "",
+			  /* GPIO1 B0-B7 */
+			  "", "HEADER_31_1v8", "HEADER_33_1v8", "",
+			  "HEADER_11_1v8", "HEADER_13_1v8", "", "",
+			  /* GPIO1 C0-C7 */
+			  "", "", "", "",
+			  "", "", "", "",
+			  /* GPIO1 D0-D7 */
+			  "", "", "", "",
+			  "", "", "HEADER_5_3v3", "HEADER_3_3v3";
+};
+
+&gpio3 {
+	gpio-line-names = /* GPIO3 A0-A7 */
+			  "", "", "", "",
+			  "", "", "", "",
+			  /* GPIO3 B0-B7 */
+			  "HEADER_16_1v8", "HEADER_18_1v8", "", "",
+			  "", "", "", "HEADER_19_1v8",
+			  /* GPIO3 C0-C7 */
+			  "HEADER_21_1v8", "HEADER_23_1v8", "", "HEADER_26_1v8",
+			  "HEADER_15_1v8", "HEADER_22_1v8", "", "",
+			  /* GPIO3 D0-D7 */
+			  "", "", "", "",
+			  "", "", "", "";
+};
+
+&gpio4 {
+	gpio-line-names = /* GPIO4 A0-A7 */
+			  "", "", "HEADER_37_3v3", "HEADER_32_3v3",
+			  "HEADER_36_3v3", "", "HEADER_35_3v3", "HEADER_38_3v3",
+			  /* GPIO4 B0-B7 */
+			  "", "", "", "HEADER_40_3v3",
+			  "HEADER_8_3v3", "HEADER_10_3v3", "", "",
+			  /* GPIO4 C0-C7 */
+			  "", "", "", "",
+			  "", "", "", "",
+			  /* GPIO4 D0-D7 */
+			  "", "", "", "",
+			  "", "", "", "";
+};
+
+&i2c0 {
+	pinctrl-0 = <&i2c0m2_xfer>;
+	pinctrl-names = "default";
+	status = "okay";
+
+	vdd_cpu_big0_s0: regulator@42 {
+		compatible = "rockchip,rk8602";
+		reg = <0x42>;
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-max-microvolt = <1050000>;
+		regulator-min-microvolt = <550000>;
+		regulator-name = "vdd_cpu_big0_s0";
+		regulator-ramp-delay = <2300>;
+		fcs,suspend-voltage-selector = <1>;
+		vin-supply = <&vcc5v0_sys>;
+
+		regulator-state-mem {
+			regulator-off-in-suspend;
+		};
+	};
+
+	vdd_cpu_big1_s0: regulator@43 {
+		compatible = "rockchip,rk8603", "rockchip,rk8602";
+		reg = <0x43>;
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-max-microvolt = <1050000>;
+		regulator-min-microvolt = <550000>;
+		regulator-name = "vdd_cpu_big1_s0";
+		regulator-ramp-delay = <2300>;
+		fcs,suspend-voltage-selector = <1>;
+		vin-supply = <&vcc5v0_sys>;
+
+		regulator-state-mem {
+			regulator-off-in-suspend;
+		};
+	};
+};
+
+&i2c2 {
+	status = "okay";
+
+	vdd_npu_s0: regulator@42 {
+		compatible = "rockchip,rk8602";
+		reg = <0x42>;
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-max-microvolt = <950000>;
+		regulator-min-microvolt = <550000>;
+		regulator-name = "vdd_npu_s0";
+		regulator-ramp-delay = <2300>;
+		fcs,suspend-voltage-selector = <1>;
+		vin-supply = <&vcc5v0_sys>;
+
+		regulator-state-mem {
+			regulator-off-in-suspend;
+		};
+	};
+};
+
+&i2c6 {
+	pinctrl-0 = <&i2c6m3_xfer>;
+	status = "okay";
+
+	fusb302: typec-portc@22 {
+		compatible = "fcs,fusb302";
+		reg = <0x22>;
+		interrupt-parent = <&gpio0>;
+		interrupts = <RK_PC4 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-0 = <&usbc0_int>;
+		pinctrl-names = "default";
+		vbus-supply = <&vbus5v0_typec>;
+
+		connector {
+			compatible = "usb-c-connector";
+			data-role = "dual";
+			label = "USB-C";
+			power-role = "dual";
+			try-power-role = "sink";
+			source-pdos = <PDO_FIXED(5000, 3000, PDO_FIXED_USB_COMM)>;
+			sink-pdos = <PDO_FIXED(5000, 1000, PDO_FIXED_USB_COMM)>;
+			op-sink-microwatt = <1000000>;
+		};
+	};
+
+	rtc_hym8563: rtc@51 {
+		compatible = "haoyu,hym8563";
+		reg = <0x51>;
+		#clock-cells = <0>;
+		clock-output-names = "hym8563";
+		interrupt-parent = <&gpio0>;
+		interrupts = <RK_PB0 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-0 = <&hym8563_int>;
+		pinctrl-names = "default";
+		wakeup-source;
+	};
+};
+
+&i2c7 {
+	pinctrl-0 = <&i2c7m0_xfer>;
+	status = "okay";
+
+	es8388: audio-codec@11 {
+		compatible = "everest,es8388";
+		reg = <0x11>;
+		assigned-clock-rates = <12288000>;
+		assigned-clocks = <&cru I2S0_8CH_MCLKOUT>;
+		AVDD-supply = <&vcc_3v3_s3>;
+		clock-names = "mclk";
+		clocks = <&cru I2S0_8CH_MCLKOUT>;
+		DVDD-supply = <&vcc_1v8_s3>;
+		HPVDD-supply = <&vcc_3v3_s3>;
+		PVDD-supply = <&vcc_1v8_s3>;
+		#sound-dai-cells = <0>;
+
+		port {
+			es8388_p0_0: endpoint {
+				remote-endpoint = <&i2s0_8ch_p0_0>;
+			};
+		};
+	};
+};
+
+&i2s0_8ch {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2s0_lrck
+		     &i2s0_mclk
+		     &i2s0_sclk
+		     &i2s0_sdi0
+		     &i2s0_sdo0>;
+	status = "okay";
+
+	i2s0_8ch_p0: port {
+		i2s0_8ch_p0_0: endpoint {
+			dai-format = "i2s";
+			mclk-fs = <256>;
+			remote-endpoint = <&es8388_p0_0>;
+		};
+	};
+};
+
+
+&pinctrl {
+	bluetooth-pins {
+		bt_reset: bt-reset {
+			rockchip,pins =
+				<0 RK_PD4 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+
+		bt_wake_dev: bt-wake-dev {
+			rockchip,pins =
+				<0 RK_PC6 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+
+		bt_wake_host: bt-wake-host {
+			rockchip,pins =
+				<0 RK_PC5 RK_FUNC_GPIO &pcfg_pull_down>;
+		};
+	};
+
+	hym8563 {
+
+		hym8563_int: hym8563-int {
+			rockchip,pins =
+				<0 RK_PB0 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
+	sdio-pwrseq {
+		wifi_enable_h: wifi-enable-h {
+			rockchip,pins =
+				<0 RK_PC7 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
+	usb-typec {
+		usbc0_int: usbc0-int {
+			rockchip,pins =
+				<0 RK_PC4 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+
+		typec5v_pwren: typec5v-pwren {
+			rockchip,pins =
+				<4 RK_PA5 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+};
+
+/* HS400 modes seemed to cause io errors. */
+&sdhci {
+	bus-width = <8>;
+	no-mmc-hs400;
+	no-sd;
+	no-sdio;
+	non-removable;
+	max-frequency = <200000000>;
+	vmmc-supply = <&vcc_3v3_s0>;
+	vqmmc-supply = <&vcc_1v8_s3>;
+	status = "okay";
+};
+
+&sdio {
+	bus-width = <4>;
+	cap-sd-highspeed;
+	cap-sdio-irq;
+	disable-wp;
+	keep-power-in-suspend;
+	max-frequency = <100000000>;
+	mmc-pwrseq = <&sdio_pwrseq>;
+	no-mmc;
+	no-sd;
+	non-removable;
+	sd-uhs-sdr104;
+	vmmc-supply = <&vcc_3v3_s3>;
+	vqmmc-supply = <&vcc_1v8_s3>;
+	status = "okay";
+};
+
+&sdmmc {
+	bus-width = <4>;
+	cap-mmc-highspeed;
+	cap-sd-highspeed;
+	disable-wp;
+	max-frequency = <200000000>;
+	no-sdio;
+	no-mmc;
+	sd-uhs-sdr104;
+	vmmc-supply = <&vcc_3v3_s3>;
+	vqmmc-supply = <&vccio_sd_s0>;
+	status = "okay";
+};
+
+&spi2 {
+	#address-cells = <1>;
+	assigned-clocks = <&cru CLK_SPI2>;
+	assigned-clock-rates = <200000000>;
+	num-cs = <1>;
+	pinctrl-0 = <&spi2m2_pins>, <&spi2m2_cs0>;
+	pinctrl-names = "default";
+	#size-cells = <0>;
+	status = "okay";
+
+	pmic@0 {
+		compatible = "rockchip,rk806";
+		reg = <0x0>;
+		#gpio-cells = <2>;
+		gpio-controller;
+		interrupt-parent = <&gpio0>;
+		interrupts = <RK_PA7 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-0 = <&pmic_pins>, <&rk806_dvs1_null>,
+			    <&rk806_dvs2_null>, <&rk806_dvs3_null>;
+		pinctrl-names = "default";
+		spi-max-frequency = <1000000>;
+
+		vcc1-supply = <&vcc5v0_sys>;
+		vcc2-supply = <&vcc5v0_sys>;
+		vcc3-supply = <&vcc5v0_sys>;
+		vcc4-supply = <&vcc5v0_sys>;
+		vcc5-supply = <&vcc5v0_sys>;
+		vcc6-supply = <&vcc5v0_sys>;
+		vcc7-supply = <&vcc5v0_sys>;
+		vcc8-supply = <&vcc5v0_sys>;
+		vcc9-supply = <&vcc5v0_sys>;
+		vcc10-supply = <&vcc5v0_sys>;
+		vcc11-supply = <&vcc_2v0_pldo_s3>;
+		vcc12-supply = <&vcc5v0_sys>;
+		vcc13-supply = <&vcc_1v1_nldo_s3>;
+		vcc14-supply = <&vcc_1v1_nldo_s3>;
+		vcca-supply = <&vcc5v0_sys>;
+
+		rk806_dvs1_null: dvs1-null-pins {
+			pins = "gpio_pwrctrl2";
+			function = "pin_fun0";
+		};
+
+		rk806_dvs2_null: dvs2-null-pins {
+			pins = "gpio_pwrctrl2";
+			function = "pin_fun0";
+		};
+
+		rk806_dvs3_null: dvs3-null-pins {
+			pins = "gpio_pwrctrl3";
+			function = "pin_fun0";
+		};
+
+		regulators {
+			vdd_gpu_s0: dcdc-reg1 {
+				regulator-boot-on;
+				regulator-enable-ramp-delay = <400>;
+				regulator-max-microvolt = <950000>;
+				regulator-min-microvolt = <550000>;
+				regulator-name = "vdd_gpu_s0";
+				regulator-ramp-delay = <12500>;
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			vdd_cpu_lit_s0: dcdc-reg2 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-max-microvolt = <950000>;
+				regulator-min-microvolt = <550000>;
+				regulator-ramp-delay = <12500>;
+				regulator-name = "vdd_cpu_lit_s0";
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			vdd_logic_s0: dcdc-reg3 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-max-microvolt = <750000>;
+				regulator-min-microvolt = <675000>;
+				regulator-name = "vdd_logic_s0";
+				regulator-ramp-delay = <12500>;
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <750000>;
+				};
+			};
+
+			vdd_vdenc_s0: dcdc-reg4 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-max-microvolt = <950000>;
+				regulator-min-microvolt = <550000>;
+				regulator-name = "vdd_vdenc_s0";
+				regulator-ramp-delay = <12500>;
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			vdd_ddr_s0: dcdc-reg5 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <750000>;
+				regulator-max-microvolt = <850000>;
+				regulator-ramp-delay = <12500>;
+				regulator-name = "vdd_ddr_s0";
+				regulator-state-mem {
+					regulator-off-in-suspend;
+					regulator-suspend-microvolt = <850000>;
+				};
+			};
+
+			vdd2_ddr_s3: dcdc-reg6 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-max-microvolt = <1100000>;
+				regulator-min-microvolt = <1100000>;
+				regulator-name = "vdd2_ddr_s3";
+				regulator-state-mem {
+					regulator-on-in-suspend;
+				};
+			};
+
+			vcc_2v0_pldo_s3: dcdc-reg7 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-max-microvolt = <2000000>;
+				regulator-min-microvolt = <2000000>;
+				regulator-name = "vdd_2v0_pldo_s3";
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <2000000>;
+				};
+			};
+
+			vcc_3v3_s3: dcdc-reg8 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-max-microvolt = <3300000>;
+				regulator-min-microvolt = <3300000>;
+				regulator-name = "vcc_3v3_s3";
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <3300000>;
+				};
+			};
+
+			vddq_ddr_s0: dcdc-reg9 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-max-microvolt = <600000>;
+				regulator-min-microvolt = <600000>;
+				regulator-name = "vddq_ddr_s0";
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			vcc_1v8_s3: dcdc-reg10 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-max-microvolt = <1800000>;
+				regulator-min-microvolt = <1800000>;
+				regulator-name = "vcc_1v8_s3";
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <1800000>;
+				};
+			};
+
+			vcc_1v8_s0: pldo-reg1 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-max-microvolt = <1800000>;
+				regulator-min-microvolt = <1800000>;
+				regulator-name = "vcc_1v8_s0";
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			vcca_1v8_s0: pldo-reg2 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-max-microvolt = <1800000>;
+				regulator-min-microvolt = <1800000>;
+				regulator-name = "vcca_1v8_s0";
+				regulator-state-mem {
+					regulator-off-in-suspend;
+					regulator-suspend-microvolt = <1800000>;
+				};
+			};
+
+			vdda_1v2_s0: pldo-reg3 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-max-microvolt = <1200000>;
+				regulator-min-microvolt = <1200000>;
+				regulator-name = "vdda_1v2_s0";
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			vcca_3v3_s0: pldo-reg4 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-max-microvolt = <3300000>;
+				regulator-min-microvolt = <3300000>;
+				regulator-name = "vcca_3v3_s0";
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			vccio_sd_s0: pldo-reg5 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-max-microvolt = <3300000>;
+				regulator-min-microvolt = <1800000>;
+				regulator-name = "vccio_sd_s0";
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			vcc_1v8_s3_pldo6: pldo-reg6 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-max-microvolt = <1800000>;
+				regulator-min-microvolt = <1800000>;
+				regulator-name = "vcc_1v8_s3_pldo6";
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <1800000>;
+				};
+			};
+
+			vdd_0v75_s3: nldo-reg1 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-max-microvolt = <750000>;
+				regulator-min-microvolt = <750000>;
+				regulator-name = "vdd_0v75_s3";
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <750000>;
+				};
+			};
+
+			vdda_ddr_pll_s0: nldo-reg2 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-max-microvolt = <850000>;
+				regulator-min-microvolt = <850000>;
+				regulator-name = "vdda_ddr_pll_s0";
+				regulator-state-mem {
+					regulator-off-in-suspend;
+					regulator-suspend-microvolt = <850000>;
+				};
+			};
+
+			avdd_0v75_s0: nldo-reg3 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-max-microvolt = <750000>;
+				regulator-min-microvolt = <750000>;
+				regulator-name = "avdd_0v75_s0";
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			vdda_0v85_s0: nldo-reg4 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <850000>;
+				regulator-max-microvolt = <850000>;
+				regulator-name = "vdda_0v85_s0";
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			/* Schematics show not in use */
+			nldo-reg5 {
+			};
+		};
+	};
+};
+
+&tsadc {
+	status = "okay";
+};
+
+&uart2 {
+	pinctrl-0 = <&uart2m0_xfer>;
+	status = "okay";
+};
+
+/* DMA seems to interfere with bluetooth device normal operation. */
+&uart9 {
+	pinctrl-0 = <&uart9m2_xfer>, <&uart9m2_ctsn>, <&uart9m2_rtsn>;
+	pinctrl-names = "default";
+	/delete-property/ dma-names;
+	/delete-property/ dmas;
+	uart-has-rtscts;
+	status = "okay";
+
+	bluetooth {
+		compatible = "realtek,rtl8821cs-bt",
+			     "realtek,rtl8723bs-bt";
+		device-wake-gpios = <&gpio0 RK_PC6 GPIO_ACTIVE_HIGH>;
+		enable-gpios = <&gpio0 RK_PD4 GPIO_ACTIVE_HIGH>;
+		host-wake-gpios = <&gpio0 RK_PC5 GPIO_ACTIVE_HIGH>;
+		pinctrl-0 = <&bt_reset>, <&bt_wake_dev>, <&bt_wake_host>;
+		pinctrl-names = "default";
+	};
+};
-- 
2.34.1


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