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Date: Tue, 2 Jan 2024 19:07:56 +0100
From: =?utf-8?Q?Ond=C5=99ej?= Jirman <megi@xff.cz>
To: Manuel Traut <manut@mecka.net>
Cc: Neil Armstrong <neil.armstrong@linaro.org>, 
	Jessica Zhang <quic_jesszhan@quicinc.com>, Sam Ravnborg <sam@ravnborg.org>, 
	Maarten Lankhorst <maarten.lankhorst@linux.intel.com>, Maxime Ripard <mripard@kernel.org>, 
	Thomas Zimmermann <tzimmermann@suse.de>, David Airlie <airlied@gmail.com>, 
	Daniel Vetter <daniel@ffwll.ch>, Rob Herring <robh+dt@kernel.org>, 
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>, Conor Dooley <conor+dt@kernel.org>, 
	Heiko Stuebner <heiko@sntech.de>, Sandy Huang <hjc@rock-chips.com>, 
	Mark Yao <markyao0591@gmail.com>, Diederik de Haas <didi.debian@cknow.org>, 
	Segfault <awarnecke002@hotmail.com>, Arnaud Ferraris <aferraris@debian.org>, 
	Danct12 <danct12@riseup.net>, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, 
	linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, 
	linux-rockchip@lists.infradead.org
Subject: Re: [PATCH v3 4/4] arm64: dts: rockchip: Add devicetree for Pine64
 PineTab2
Message-ID: <775vjfucu2g2s6zzeutj7f7tapx3q2geccpxvv4ppcms4hxbq7@cbrdmlu2ryzp>
Mail-Followup-To: =?utf-8?Q?Ond=C5=99ej?= Jirman <megi@xff.cz>, 
	Manuel Traut <manut@mecka.net>, Neil Armstrong <neil.armstrong@linaro.org>, 
	Jessica Zhang <quic_jesszhan@quicinc.com>, Sam Ravnborg <sam@ravnborg.org>, 
	Maarten Lankhorst <maarten.lankhorst@linux.intel.com>, Maxime Ripard <mripard@kernel.org>, 
	Thomas Zimmermann <tzimmermann@suse.de>, David Airlie <airlied@gmail.com>, 
	Daniel Vetter <daniel@ffwll.ch>, Rob Herring <robh+dt@kernel.org>, 
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>, Conor Dooley <conor+dt@kernel.org>, 
	Heiko Stuebner <heiko@sntech.de>, Sandy Huang <hjc@rock-chips.com>, 
	Mark Yao <markyao0591@gmail.com>, Diederik de Haas <didi.debian@cknow.org>, 
	Segfault <awarnecke002@hotmail.com>, Arnaud Ferraris <aferraris@debian.org>, 
	Danct12 <danct12@riseup.net>, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, 
	linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, 
	linux-rockchip@lists.infradead.org
References: <20240102-pinetab2-v3-0-cb1aa69f8c30@mecka.net>
 <20240102-pinetab2-v3-4-cb1aa69f8c30@mecka.net>
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In-Reply-To: <20240102-pinetab2-v3-4-cb1aa69f8c30@mecka.net>

Hello Manuel,

see below...

On Tue, Jan 02, 2024 at 05:15:47PM +0100, Manuel Traut wrote:
> From: Alexander Warnecke <awarnecke002@hotmail.com>
> 
> [...]
>
> diff --git a/arch/arm64/boot/dts/rockchip/rk3566-pinetab2.dtsi b/arch/arm64/boot/dts/rockchip/rk3566-pinetab2.dtsi
> new file mode 100644
> index 000000000000..5d895628406b
> --- /dev/null
> +++ b/arch/arm64/boot/dts/rockchip/rk3566-pinetab2.dtsi
> @@ -0,0 +1,959 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/input/gpio-keys.h>
> +#include <dt-bindings/input/input.h>
> +#include <dt-bindings/leds/common.h>
> +#include <dt-bindings/pinctrl/rockchip.h>
> +#include <dt-bindings/soc/rockchip,vop2.h>
> +#include <dt-bindings/usb/pd.h>
> +#include "rk3566.dtsi"
> +
> +/ {
> +	chassis-type = "tablet";
> +
> +	aliases {
> +		mmc0 = &sdhci;
> +		mmc1 = &sdmmc0;
> +	};
> +
> +	chosen {
> +		stdout-path = "serial2:1500000n8";
> +	};
> +
> +	adc-keys {
> +		compatible = "adc-keys";
> +		io-channels = <&saradc 0>;
> +		io-channel-names = "buttons";
> +		keyup-threshold-microvolt = <1800000>;
> +		poll-interval = <25>;
> +
> +		button-vol-up {
> +			label = "Volume Up";
> +			linux,code = <KEY_VOLUMEUP>;
> +			press-threshold-microvolt = <297500>;
> +		};
> +
> +		button-vol-down {
> +			label = "Volume Down";
> +			linux,code = <KEY_VOLUMEDOWN>;
> +			press-threshold-microvolt = <1750>;
> +		};
> +	};
> +
> +	backlight: backlight {
> +		compatible = "pwm-backlight";
> +		pwms = <&pwm4 0 25000 0>;
> +		brightness-levels = <20 220>;
> +		num-interpolated-steps = <200>;

Does this linear brightness -> PWM duty cycle mapping lead to linear
relationship between brighntess level and subjective brightness on this HW?

I doubt it a bit...

> +		default-brightness-level = <100>;
> +		power-supply = <&vcc_sys>;
> +	};
> +
> +	battery: battery {
> +		compatible = "simple-battery";
> +		charge-full-design-microamp-hours = <6000000>;
> +		charge-term-current-microamp = <300000>;
> +		constant-charge-current-max-microamp = <2000000>;
> +		constant-charge-voltage-max-microvolt = <4300000>;
> +		voltage-max-design-microvolt = <4350000>;
> +		voltage-min-design-microvolt = <3400000>;
> +
> +		ocv-capacity-celsius = <20>;
> +		ocv-capacity-table-0 = <4322000 100>, <4250000 95>, <4192000 90>, <4136000 85>,
> +				       <4080000 80>, <4022000 75>, <3972000 70>, <3928000 65>,
> +				       <3885000 60>, <3833000 55>, <3798000 50>, <3780000 45>,
> +				       <3776000 40>, <3773000 35>, <3755000 30>, <3706000 25>,
> +				       <3640000 20>, <3589000 15>, <3535000 10>, <3492000 5>,
> +				       <3400000 0>;
> +	};
> +
> +	gpio_keys: gpio-keys {
> +		compatible = "gpio-keys";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&kb_id_det>;
> +
> +		tablet-mode-switch {
> +			debounce-interval = <20>;
> +			gpios = <&gpio4 RK_PA4 GPIO_ACTIVE_HIGH>;
> +			label = "Tablet Mode";
> +			linux,input-type = <EV_SW>;
> +			linux,code = <SW_TABLET_MODE>;
> +		};
> +	};
> +
> +	hdmi-con {

hdmi-connector

> +		compatible = "hdmi-connector";
> +		type = "d";
> +
> +		port {
> +			hdmi_con_in: endpoint {
> +				remote-endpoint = <&hdmi_out_con>;
> +			};
> +		};
> +	};
> +
> +	leds {
> +		compatible = "gpio-leds";
> +

Spurious newline ^

> +		pinctrl-names = "default";
> +		pinctrl-0 = <&flash_led_en_h>;
> +
> +		led-0 {
> +			gpios = <&gpio4 RK_PA5 GPIO_ACTIVE_HIGH>;
> +			color = <LED_COLOR_ID_WHITE>;
> +			function = LED_FUNCTION_FLASH;
> +		};
> +	};
> +
> +	rk817-sound {
> +		compatible = "simple-audio-card";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&hp_det_l>;
> +		simple-audio-card,format = "i2s";
> +		simple-audio-card,name = "rk817_ext";
> +		simple-audio-card,mclk-fs = <256>;
> +
> +		simple-audio-card,widgets =
> +			"Microphone", "Mic Jack",
> +			"Headphone", "Headphones",
> +			"Speaker", "Internal Speakers";
> +
> +		simple-audio-card,routing =
> +			"MICR", "Mic Jack",
> +			"Headphones", "HPOL",
> +			"Headphones", "HPOR",
> +			"Internal Speakers", "Speaker Amplifier OUTL",
> +			"Internal Speakers", "Speaker Amplifier OUTR",
> +			"Speaker Amplifier INL", "HPOL",
> +			"Speaker Amplifier INR", "HPOR";
> +		simple-audio-card,hp-det-gpio = <&gpio4 RK_PC6 GPIO_ACTIVE_LOW>;
> +		simple-audio-card,aux-devs = <&speaker_amp>;
> +		simple-audio-card,pin-switches = "Internal Speakers";
> +
> +		simple-audio-card,cpu {
> +			sound-dai = <&i2s1_8ch>;
> +		};
> +
> +		simple-audio-card,codec {
> +			sound-dai = <&rk817>;
> +		};
> +	};
> +
> +	speaker_amp: speaker-amplifier {
> +		compatible = "simple-audio-amplifier";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&spk_ctl>;
> +		enable-gpios = <&gpio4 RK_PC2 GPIO_ACTIVE_HIGH>;
> +		sound-name-prefix = "Speaker Amplifier";
> +		VCC-supply = <&vcc_bat>;
> +	};
> +
> +	vcc_3v3: vcc-3v3 {

Regulator node names shoule end with -regulator suffix. The same applies for
all of the below nodes.

> +		compatible = "regulator-fixed";
> +		regulator-name = "vcc_3v3";
> +		regulator-always-on;
> +		regulator-boot-on;
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +		vin-supply = <&vcc3v3_sys>;
> +	};
> +
> +	vcc3v3_minipcie: vcc3v3-minipcie {
> +		compatible = "regulator-fixed";
> +		enable-active-high;
> +		gpio = <&gpio4 RK_PC3 GPIO_ACTIVE_HIGH>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pcie_pwren_h>;
> +		regulator-name = "vcc3v3_minipcie";
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +		vin-supply = <&vcc_sys>;
> +	};
> +
> +	vcc3v3_sd: vcc3v3-sd {
> +		compatible = "regulator-fixed";
> +		gpio = <&gpio0 RK_PA5 GPIO_ACTIVE_HIGH>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&sdmmc_pwren_l>;
> +		regulator-name = "vcc3v3_sd";
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +		vin-supply = <&vcc3v3_sys>;
> +	};
> +
> +	vcc5v0_usb_host0: vcc5v0-usb-host0 {
> +		compatible = "regulator-fixed";
> +		enable-active-high;
> +		gpio = <&gpio4 RK_PC4 GPIO_ACTIVE_HIGH>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&usb_host_pwren1_h>;
> +		regulator-name = "vcc5v0_usb_host0";
> +		regulator-min-microvolt = <5000000>;
> +		regulator-max-microvolt = <5000000>;
> +		vin-supply = <&vcc5v_midu>;
> +	};
> +
> +	vcc5v0_usb_host2: vcc5v0-usb-host2 {
> +		compatible = "regulator-fixed";
> +		enable-active-high;
> +		gpio = <&gpio4 RK_PC5 GPIO_ACTIVE_HIGH>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&usb_host_pwren2_h>;
> +		regulator-name = "vcc5v0_usb_host2";
> +		regulator-min-microvolt = <5000000>;
> +		regulator-max-microvolt = <5000000>;
> +		vin-supply = <&vcc5v_midu>;
> +	};
> +
> +	vcc_bat: vcc-bat {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vcc_bat";
> +		regulator-always-on;
> +		regulator-boot-on;
> +	};
> +
> +	vcc_sys: vcc-sys {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vcc_sys";
> +		regulator-always-on;
> +		regulator-boot-on;
> +		vin-supply = <&vcc_bat>;
> +	};
> +
> +	vdd1v2_dvp: vdd1v2-dvp {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vdd1v2_dvp";
> +		regulator-min-microvolt = <1200000>;
> +		regulator-max-microvolt = <1200000>;
> +		vin-supply = <&vcc_3v3>;
> +		/*enable-supply = <&vcc2v8_dvp>;*/

There's no such property. Delete this commented out line.

> +	};
> +};
> +
> +&combphy1 {
> +	status = "okay";
> +};
> +
> +&combphy2 {
> +	status = "okay";
> +};
> +
> +&cpu0 {
> +	cpu-supply = <&vdd_cpu>;
> +};
> +
> +&cpu1 {
> +	cpu-supply = <&vdd_cpu>;
> +};
> +
> +&cpu2 {
> +	cpu-supply = <&vdd_cpu>;
> +};
> +
> +&cpu3 {
> +	cpu-supply = <&vdd_cpu>;
> +};
> +
> +&cru {
> +	assigned-clocks = <&pmucru CLK_RTC_32K>, <&cru PLL_GPLL>,
> +			  <&pmucru PLL_PPLL>, <&cru PLL_VPLL>;
> +	assigned-clock-rates = <32768>, <1200000000>, <200000000>, <500000000>;
> +	assigned-clock-parents = <&pmucru CLK_RTC32K_FRAC>;
> +};
> +
> +&csi_dphy {
> +	status = "okay";
> +};
> +
> +&dsi0 {
> +	status = "okay";
> +	clock-master;
> +	#address-cells = <1>;
> +	#size-cells = <0>;
> +
> +	lcd: panel@0 {
> +		compatible = "boe,th101mb31ig002-28a";
> +		reg = <0>;
> +		backlight = <&backlight>;
> +		enable-gpios = <&gpio0 RK_PC7 GPIO_ACTIVE_HIGH>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&lcd_pwren_h &lcd0_rst_l>;

Re lcd0_rst_l:

It's a bit weird conceptually to reference from dtsi something that's only 
declared in dts that includes the dtsi. Maybe move pinctrl-* properties
to dts &lcd, too...

> +		rotation = <90>;
> +		power-supply = <&vcc_3v3>;
> +
> +		port@0 {
> +			panel_in_dsi: endpoint@0 {
> +				remote-endpoint = <&dsi0_out_con>;
> +			};
> +		};
> +	};
> +};
> +
> +&dsi0_in {
> +	dsi0_in_vp1: endpoint {
> +		remote-endpoint = <&vp1_out_dsi0>;
> +	};
> +};
> +
> +&dsi0_out {
> +	dsi0_out_con: endpoint {
> +		remote-endpoint = <&panel_in_dsi>;
> +	};
> +};
> +
> +&dsi_dphy0 {
> +	status = "okay";
> +};
> +
> +&gpu {
> +	mali-supply = <&vdd_gpu_npu>;
> +	status = "okay";
> +};
> +
> +&hdmi {
> +	avdd-0v9-supply = <&vdda_0v9_p>;
> +	avdd-1v8-supply = <&vcc_1v8>;
> +	status = "okay";
> +};
> +
> +&hdmi_in {
> +	hdmi_in_vp0: endpoint {
> +		remote-endpoint = <&vp0_out_hdmi>;
> +	};
> +};
> +
> +&hdmi_out {
> +	hdmi_out_con: endpoint {
> +		remote-endpoint = <&hdmi_con_in>;
> +	};
> +};
> +
> +&hdmi_sound {
> +	status = "okay";
> +};
> +
> +&i2c0 {
> +	clock-frequency = <400000>;
> +	status = "okay";
> +
> +	vdd_cpu: regulator@1c {
> +		compatible = "tcs,tcs4525";
> +		reg = <0x1c>;
> +		fcs,suspend-voltage-selector = <1>;
> +		regulator-name = "vdd_cpu";
> +		regulator-min-microvolt = <800000>;
> +		regulator-max-microvolt = <1150000>;
> +		regulator-ramp-delay = <2300>;
> +		regulator-always-on;
> +		regulator-boot-on;
> +		vin-supply = <&vcc_sys>;
> +
> +		regulator-state-mem {
> +			regulator-off-in-suspend;
> +		};
> +	};
> +
> +	rk817: pmic@20 {
> +		compatible = "rockchip,rk817";
> +		reg = <0x20>;
> +		interrupt-parent = <&gpio0>;
> +		interrupts = <RK_PA3 IRQ_TYPE_LEVEL_LOW>;
> +		assigned-clocks = <&cru I2S1_MCLKOUT_TX>;
> +		assigned-clock-parents = <&cru CLK_I2S1_8CH_TX>;
> +		clock-names = "mclk";
> +		clocks = <&cru I2S1_MCLKOUT_TX>;
> +		clock-output-names = "rk808-clkout1", "rk808-clkout2";
> +		#clock-cells = <1>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pmic_int_l>, <&i2s1m0_mclk>;
> +		rockchip,system-power-controller;
> +		#sound-dai-cells = <0>;
> +		wakeup-source;
> +
> +		vcc1-supply = <&vcc_sys>;
> +		vcc2-supply = <&vcc_sys>;
> +		vcc3-supply = <&vcc_sys>;
> +		vcc4-supply = <&vcc_sys>;
> +		vcc5-supply = <&vcc_sys>;
> +		vcc6-supply = <&vcc_sys>;
> +		vcc7-supply = <&vcc_sys>;
> +		vcc8-supply = <&vcc_sys>;
> +		vcc9-supply = <&vcc5v_midu>;
> +
> +		regulators {
> +			vdd_logic: DCDC_REG1 {
> +				regulator-always-on;
> +				regulator-boot-on;
> +				regulator-min-microvolt = <500000>;
> +				regulator-max-microvolt = <1350000>;
> +				regulator-ramp-delay = <6001>;
> +				regulator-initial-mode = <0x2>;
> +				regulator-name = "vdd_logic";
> +				regulator-state-mem {
> +					regulator-off-in-suspend;
> +				};
> +			};
> +
> +			vdd_gpu_npu: DCDC_REG2 {
> +				regulator-min-microvolt = <500000>;
> +				regulator-max-microvolt = <1350000>;
> +				regulator-ramp-delay = <6001>;
> +				regulator-initial-mode = <0x2>;
> +				regulator-name = "vdd_gpu_npu";
> +				regulator-state-mem {
> +					regulator-off-in-suspend;
> +				};
> +			};
> +
> +			vcc_ddr: DCDC_REG3 {
> +				regulator-always-on;
> +				regulator-boot-on;
> +				regulator-initial-mode = <0x2>;
> +				regulator-name = "vcc_ddr";
> +				regulator-state-mem {
> +					regulator-on-in-suspend;
> +				};
> +			};
> +
> +			vcc3v3_sys: DCDC_REG4 {
> +				regulator-always-on;
> +				regulator-boot-on;
> +				regulator-min-microvolt = <3300000>;
> +				regulator-max-microvolt = <3300000>;
> +				regulator-initial-mode = <0x2>;
> +				regulator-name = "vcc3v3_sys";
> +				regulator-state-mem {
> +					regulator-off-in-suspend;
> +				};
> +			};
> +
> +			vcca1v8_pmu: LDO_REG1 {
> +				regulator-always-on;
> +				regulator-boot-on;
> +				regulator-min-microvolt = <1800000>;
> +				regulator-max-microvolt = <1800000>;
> +				regulator-name = "vcca1v8_pmu";
> +				regulator-state-mem {
> +					regulator-on-in-suspend;
> +				};
> +			};
> +
> +			vdda_0v9_p: LDO_REG2 {
> +				regulator-always-on;
> +				regulator-boot-on;
> +				regulator-min-microvolt = <900000>;
> +				regulator-max-microvolt = <900000>;
> +				regulator-name = "vdda_0v9_p";
> +				regulator-state-mem {
> +					regulator-off-in-suspend;
> +				};
> +			};
> +
> +			vdda0v9_pmu: LDO_REG3 {
> +				regulator-always-on;
> +				regulator-boot-on;
> +				regulator-min-microvolt = <900000>;
> +				regulator-max-microvolt = <900000>;
> +				regulator-name = "vdda0v9_pmu";
> +				regulator-state-mem {
> +					regulator-on-in-suspend;
> +				};
> +			};
> +
> +			vccio_acodec: LDO_REG4 {
> +				regulator-always-on;
> +				regulator-boot-on;
> +				regulator-min-microvolt = <3300000>;
> +				regulator-max-microvolt = <3300000>;
> +				regulator-name = "vccio_acodec";
> +				regulator-state-mem {
> +					regulator-off-in-suspend;
> +				};
> +			};
> +
> +			vccio_sd: LDO_REG5 {
> +				regulator-always-on;
> +				regulator-boot-on;
> +				regulator-min-microvolt = <1800000>;
> +				regulator-max-microvolt = <3300000>;
> +				regulator-name = "vccio_sd";
> +				regulator-state-mem {
> +					regulator-off-in-suspend;
> +				};
> +			};
> +
> +			vcc3v3_pmu: LDO_REG6 {
> +				regulator-always-on;
> +				regulator-boot-on;
> +				regulator-min-microvolt = <3300000>;
> +				regulator-max-microvolt = <3300000>;
> +				regulator-name = "vcc3v3_pmu";
> +				regulator-state-mem {
> +					regulator-on-in-suspend;
> +				};
> +			};
> +
> +			vcc_1v8: LDO_REG7 {
> +				regulator-always-on;
> +				regulator-boot-on;
> +				regulator-min-microvolt = <1800000>;
> +				regulator-max-microvolt = <1800000>;
> +				regulator-name = "vcc_1v8";
> +				regulator-state-mem {
> +					regulator-off-in-suspend;
> +				};
> +			};
> +
> +			vcc1v8_dvp: LDO_REG8 {
> +				regulator-always-on;
> +				regulator-boot-on;
> +				regulator-min-microvolt = <1800000>;
> +				regulator-max-microvolt = <1800000>;
> +				regulator-name = "vcc1v8_dvp";
> +				regulator-state-mem {
> +					regulator-off-in-suspend;
> +				};
> +			};
> +
> +			vcc2v8_dvp: LDO_REG9 {
> +				regulator-always-on;
> +				regulator-boot-on;
> +				regulator-min-microvolt = <2800000>;
> +				regulator-max-microvolt = <2800000>;
> +				regulator-name = "vcc2v8_dvp";
> +				regulator-state-mem {
> +					regulator-off-in-suspend;
> +				};
> +			};
> +
> +			vcc5v_midu: BOOST {
> +				regulator-always-on;
> +				regulator-boot-on;
> +				regulator-min-microvolt = <5000000>;
> +				regulator-max-microvolt = <5000000>;
> +				regulator-name = "boost";
> +				regulator-state-mem {
> +					regulator-off-in-suspend;

I guess this prevents remote USB wakeup by USB devices. Like wakeup via USB
keyboard. Probably not a bad thing, though.

> +				};
> +			};
> +
> +			vbus: OTG_SWITCH {
> +				regulator-min-microvolt = <5000000>;
> +				regulator-max-microvolt = <5000000>;
> +				regulator-name = "otg_switch";
> +				regulator-state-mem {
> +					regulator-off-in-suspend;
> +				};
> +			};
> +		};
> +
> +		charger {
> +			monitored-battery = <&battery>;
> +			rockchip,resistor-sense-micro-ohms = <10000>;
> +			rockchip,sleep-enter-current-microamp = <300000>;
> +			rockchip,sleep-filter-current-microamp = <100000>;
> +		};
> +	};
> +};
> +
> +&i2c1 {
> +	clock-frequency = <400000>;
> +	status = "okay";
> +
> +	touchscreen@5d {
> +		compatible = "goodix,gt911";
> +		reg = <0x5d>;
> +		interrupt-parent = <&gpio0>;
> +		interrupts = <RK_PB0 IRQ_TYPE_EDGE_FALLING>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&tp_int_l_pmuio2>, <&tp_rst_l_pmuio2>;
> +		AVDD28-supply = <&vcc3v3_pmu>;
> +		VDDIO-supply = <&vcca1v8_pmu>;
> +		irq-gpios = <&gpio0 RK_PB0 GPIO_ACTIVE_HIGH>;
> +		reset-gpios = <&gpio0 RK_PC2 GPIO_ACTIVE_HIGH>;
> +	};
> +};
> +
> +&i2c2 {
> +	clock-frequency = <400000>;
> +	pinctrl-0 = <&i2c2m1_xfer>;
> +	status = "okay";
> +
> +	vcm@c {
> +		compatible = "dongwoon,dw9714";
> +		reg = <0x0c>;
> +		vcc-supply = <&vcc1v8_dvp>;
> +	};
> +
> +	camera@36 {
> +		compatible = "ovti,ov5648";
> +		reg = <0x36>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&camerab_pdn_l &camerab_rst_l>;
> +
> +		clocks = <&cru CLK_CIF_OUT>;
> +		assigned-clocks = <&cru CLK_CIF_OUT>;
> +		assigned-clock-rates = <24000000>;
> +
> +		avdd-supply = <&vcc2v8_dvp>;
> +		dvdd-supply = <&vdd1v2_dvp>;
> +		dovdd-supply = <&vcc1v8_dvp>;
> +		powerdown-gpios = <&gpio4 RK_PB3 GPIO_ACTIVE_LOW>;
> +		reset-gpios = <&gpio4 RK_PB1 GPIO_ACTIVE_LOW>;
> +
> +		port {
> +			endpoint {
> +				data-lanes = <1 2>;
> +				remote-endpoint = <0>;
> +				link-frequencies = /bits/ 64 <210000000 168000000>;
> +			};
> +		};
> +	};
> +};
> +
> +&i2c5 {
> +	clock-frequency = <400000>;
> +	status = "okay";
> +
> +	accelerometer@18 {
> +		compatible = "silan,sc7a20";
> +		reg = <0x18>;
> +		interrupt-parent = <&gpio3>;
> +		interrupts = <RK_PA2 IRQ_TYPE_LEVEL_LOW>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&gsensor_int_l>;
> +		st,drdy-int-pin = <1>;
> +		vdd-supply = <&vcc_1v8>;
> +		vddio-supply = <&vcc_1v8>;
> +		mount-matrix = "1", "0", "0",
> +			       "0", "0", "1",
> +			       "0", "1", "0";
> +	};
> +};
> +
> +&i2s0_8ch {
> +	status = "okay";
> +};
> +
> +&i2s1_8ch {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&i2s1m0_sclktx
> +		     &i2s1m0_lrcktx
> +		     &i2s1m0_sdi0
> +		     &i2s1m0_sdo0>;
> +	rockchip,trcm-sync-tx-only;
> +	status = "okay";
> +};
> +
> +&pcie2x1 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pcie_reset_h>;
> +	reset-gpios = <&gpio1 RK_PB2 GPIO_ACTIVE_HIGH>;
> +	vpcie3v3-supply = <&vcc3v3_minipcie>;
> +	status = "okay";
> +};

Does it make sense to enable this HW block by default, when it isn't used on
actual HW?

> +&pinctrl {
> +	bt {
> +		bt_wake_host_h: bt-wake-host-h {
> +			rockchip,pins = <0 RK_PB5 RK_FUNC_GPIO &pcfg_pull_down>;
> +		};
> +	};

^^^ unused

> +
> +	camerab {
> +		camerab_pdn_l: camerab-pdn-l {
> +			rockchip,pins = <4 RK_PB3 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +
> +		camerab_rst_l: camerab-rst-l {
> +			rockchip,pins = <4 RK_PB1 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +	};
> +
> +	cameraf {
> +		cameraf_pdn_l: cameraf-pdn-l {
> +			rockchip,pins = <4 RK_PB2 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +
> +		cameraf_rst_l: cameraf-rst-l {
> +			rockchip,pins = <4 RK_PB0 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +	};

^^^ unused

> +
> +	flash {
> +		flash_led_en_h: flash-led-en-h {
> +			rockchip,pins = <4 RK_PA5 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +	};
> +
> +	fspi {
> +		fspi_dual_io_pins: fspi-dual-io-pins {
> +			rockchip,pins =
> +				/* fspi_clk */
> +				<1 RK_PD0 1 &pcfg_pull_none>,
> +				/* fspi_cs0n */
> +				<1 RK_PD3 1 &pcfg_pull_none>,
> +				/* fspi_d0 */
> +				<1 RK_PD1 1 &pcfg_pull_none>,
> +				/* fspi_d1 */
> +				<1 RK_PD2 1 &pcfg_pull_none>;
> +		};
> +	};
> +
> +	gsensor {
> +		gsensor_int_l: gsensor-int-l {
> +			rockchip,pins = <3 RK_PA2 RK_FUNC_GPIO &pcfg_pull_up>;
> +		};
> +	};
> +
> +	kb {
> +		kb_id_det: kb-id-det {
> +			rockchip,pins = <4 RK_PA4 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +	};
> +
> +	lcd {
> +		lcd_pwren_h: lcd-pwren-h {
> +			rockchip,pins = <0 RK_PC7 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +	};
> +
> +	pcie {
> +		pcie_pwren_h: pcie-pwren-h {
> +			rockchip,pins = <4 RK_PC3 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +
> +		pcie_reset_h: pcie-reset-h {
> +			rockchip,pins = <1 RK_PB2 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +	};
> +
> +	pmic {
> +		pmic_int_l: pmic-int-l {
> +			rockchip,pins = <0 RK_PA3 RK_FUNC_GPIO &pcfg_pull_up>;
> +		};
> +	};
> +
> +	sdmmc {
> +		sdmmc_pwren_l: sdmmc-pwren-l {
> +			rockchip,pins = <0 RK_PA5 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +	};
> +
> +	sound {
> +		hp_det_l: hp-det-l {
> +			rockchip,pins = <4 RK_PC6 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +
> +		spk_ctl: spk-ctl {
> +			rockchip,pins = <4 RK_PC2 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +	};
> +
> +	tp {
> +		tp_int_l_pmuio2: tp-int-l-pmuio2 {
> +			rockchip,pins = <0 RK_PB0 RK_FUNC_GPIO &pcfg_pull_up>;
> +		};
> +
> +		tp_rst_l_pmuio2: tp-rst-l-pmuio2 {
> +			rockchip,pins = <0 RK_PC2 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +	};
> +
> +	usb {
> +		usbcc_int_l: usbcc-int-l {
> +			rockchip,pins = <0 RK_PC5 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};

^^^ unused

> +		usb_host_pwren1_h: usb-host-pwren1-h {
> +			rockchip,pins = <4 RK_PC4 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +
> +		usb_host_pwren2_h: usb-host-pwren2-h {
> +			rockchip,pins = <4 RK_PC5 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +	};
> +
> +	wifi {
> +		host_wake_wl: host-wake-wl {
> +			rockchip,pins = <0 RK_PB7 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +
> +		wifi_pwren: wifi-pwren {
> +			rockchip,pins = <0 RK_PA0 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +
> +		wifi_wake_host_h: wifi-wake-host-h {
> +			rockchip,pins = <0 RK_PC4 RK_FUNC_GPIO &pcfg_pull_down>;
> +		};
> +	};

^^^ all of this wifi stuff is unused

Also wifi_pwren is not really useful on actual HW. W_VBAT is routed directly
to wifi chip, with wifi_pwren_h signal having no effect: (short via R9664)

   https://megous.com/dl/tmp/b499859c1012f969.png

> +};
> +
> +&pmu_io_domains {
> +	pmuio1-supply = <&vcc3v3_pmu>;
> +	pmuio2-supply = <&vcca1v8_pmu>;
> +	vccio1-supply = <&vccio_acodec>;
> +	vccio2-supply = <&vcc_1v8>;
> +	vccio3-supply = <&vccio_sd>;
> +	vccio4-supply = <&vcc_1v8>;
> +	vccio5-supply = <&vcc_1v8>;
> +	vccio6-supply = <&vcc1v8_dvp>;
> +	vccio7-supply = <&vcc_3v3>;
> +	status = "okay";
> +};
> +
> +&pwm4 {
> +	status = "okay";
> +};
> +
> +&saradc {
> +	vref-supply = <&vcc_1v8>;
> +	status = "okay";
> +};
> +
> +&sdhci {
> +	bus-width = <8>;
> +	no-sdio;
> +	no-sd;
> +	non-removable;
> +	max-frequency = <200000000>;
> +	mmc-hs200-1_8v;
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&emmc_bus8
> +		     &emmc_clk
> +		     &emmc_cmd
> +		     &emmc_datastrobe
> +		     &emmc_rstnout>;
> +	vmmc-supply = <&vcc_3v3>;
> +	vqmmc-supply = <&vcc_1v8>;
> +	status = "okay";
> +};
> +
> +&sdmmc0 {
> +	bus-width = <4>;
> +	cap-sd-highspeed;
> +	cd-gpios = <&gpio0 RK_PA4 GPIO_ACTIVE_LOW>;
> +	disable-wp;
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&sdmmc0_bus4
> +		     &sdmmc0_clk
> +		     &sdmmc0_cmd
> +		     &sdmmc0_det>;
> +	sd-uhs-sdr104;
> +	vmmc-supply = <&vcc3v3_sd>;
> +	vqmmc-supply = <&vccio_sd>;
> +	status = "okay";
> +};
> +
> +&sdmmc1 {
> +	bus-width = <4>;
> +	cap-sd-highspeed;
> +	cap-sdio-irq;
> +	keep-power-in-suspend;
> +	non-removable;
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&sdmmc1_bus4
> +		     &sdmmc1_cmd
> +		     &sdmmc1_clk>;
> +	sd-uhs-sdr104;
> +	vqmmc-supply = <&vcca1v8_pmu>;
> +	status = "okay";
> +};
> +
> +&sfc {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&fspi_dual_io_pins>;
> +	status = "okay";
> +	#address-cells = <1>;
> +	#size-cells = <0>;
> +
> +	flash@0 {
> +		compatible = "jedec,spi-nor";
> +		reg = <0>;
> +		spi-max-frequency = <24000000>;

That's a bit on the low side. The flash chip should work for all commands up to
80MHz https://megous.com/dl/tmp/b428ad9b85ac4633.png and SGM3157YC6 switch
for the FSPI-CLK should have high enough bandwidth, too.

> +		spi-rx-bus-width = <2>;

GD25LQ128E supports quad I/O. Maybe try 4 if it will work.

> +		spi-tx-bus-width = <1>;
> +	};
> +};
> +
> +&tsadc {
> +	rockchip,hw-tshut-mode = <1>;
> +	rockchip,hw-tshut-polarity = <0>;
> +	status = "okay";
> +};
> +
> +&uart1 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&uart1m0_xfer
> +		     &uart1m0_ctsn
> +		     &uart1m0_rtsn>;
> +	status = "okay";
> +	uart-has-rtscts;
> +};

Not sure about enabling UART for bluetooth, without having the bluetooth driver
hooked in, somehow. UART will by default pull TX signal high, which may cause
current leakage into gpio/uart pin of the bluetooth chip, if it's not powered up.

Maybe just remove this, until bluetooth is figured out...

kind regards,
	o.