Re: [linux-sunxi] [PATCH 5/5] arm64: dts: allwinner: a64: add support for PineTab

Vasily Khoruzhick
2020-01-10T18:50:52Z

On Fri, Jan 10, 2020 at 7:54 AM Icenowy Zheng <icenowy@aosc.io> wrote:
>
> PineTab is a 10.1" tablet by Pine64 with Allwinner A64 inside.
>
> It includes the following peripherals:
>
> USB:
> - A microUSB Type-B port connected to the OTG-capable USB PHY of
> Allwinner A64. The ID pin is connected to a GPIO of the A64 SoC, and the
> Vbus is connected to the Vbus of AXP803 PMIC. These enables OTG
> functionality on this port.
> - A USB Type-A port is connected to the internal hub attached to the
> non-OTG USB PHY of Allwinner A64.
> - There are reserved pins for an external keyboard connected to the
> internal hub.
>
> Power:
> - The microUSB port has its Vbus connected to AXP803, mentioned above.
> - A DC jack (of a strange size, 2.5mm outer diameter) is connected to
> the ACIN of AXP803.
> - A Li-Polymer battery is connected to the battery pins of AXP803.
>
> Storage:
> - An tradition Pine64 eMMC slot is on the board, mounted with an eMMC
> module by factory.
> - An external microSD slot is hidden under a protect case.
>
> Display:
> - A MIPI-DSI LCD panel (800x1280) is connected to the DSI port of A64 SoC.
> - A mini HDMI port.
>
> Input:
> - A touch panel attached to a Goodix GT9271 touch controller.
> - Volume keys connected to the LRADC of the A64 SoC.
>
> Camera:
> - An OV5640 CMOS camera is at rear, connected to the CSI bus of A64 SoC.
> - A GC2145 CMOS camera is at front, shares the same CSI bus with OV5640.
>
> Audio:
> - A headphone jack is conencted to the SoC's internal codec.
> - A speaker connected is to the Line Out port of SoC's internal codec, via
> an amplifier.
>
> Misc:
> - Debug UART is muxed with the headphone jack, with the switch next to
> the microSD slot.
> - A bosch BMA223 accelerometer is connected to the I2C bus of A64 SoC.
> - Wi-Fi and Bluetooth are available via a RTL8723CS chip, similar to the
> one in Pinebook.
>
> This commit adds a basically usable device tree for it, implementing
> most of the features mentioned above. HDMI is not supported now because
> bad LCD-HDMI coexistence situation of mainline A64 display driver, and
> the front camera currently lacks a driver and a facility to share the
> bus with the rear one.
>
> Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
> ---
> arch/arm64/boot/dts/allwinner/Makefile | 1 +
> .../boot/dts/allwinner/sun50i-a64-pinetab.dts | 461 ++++++++++++++++++
> 2 files changed, 462 insertions(+)
> create mode 100644 arch/arm64/boot/dts/allwinner/sun50i-a64-pinetab.dts
>
> diff --git a/arch/arm64/boot/dts/allwinner/Makefile b/arch/arm64/boot/dts/allwinner/Makefile
> index cf4f78617c3f..6dad63881cd3 100644
> --- a/arch/arm64/boot/dts/allwinner/Makefile
> +++ b/arch/arm64/boot/dts/allwinner/Makefile
> @@ -9,6 +9,7 @@ dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-orangepi-win.dtb
> dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-pine64-lts.dtb
> dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-pine64-plus.dtb sun50i-a64-pine64.dtb
> dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-pinebook.dtb
> +dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-pinetab.dtb
> dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-sopine-baseboard.dtb
> dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-teres-i.dtb
> dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h5-bananapi-m2-plus.dtb
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinetab.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinetab.dts
> new file mode 100644
> index 000000000000..1dfa3668636e
> --- /dev/null
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinetab.dts
> @@ -0,0 +1,461 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright (C) 2019 Icenowy Zheng <icenowy@aosc.xyz>
> + *
> + */
> +
> +/dts-v1/;
> +
> +#include "sun50i-a64.dtsi"

You may want to include dtsi with OPP for A64 here if you want to enable DVFS

> +
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/input/input.h>
> +#include <dt-bindings/pwm/pwm.h>
> +
> +/ {
> + model = "PineTab";
> + compatible = "pine64,pinetab", "allwinner,sun50i-a64";
> +
> + aliases {
> + serial0 = &uart0;
> + ethernet0 = &rtl8723cs;
> + };
> +
> + backlight: backlight {
> + compatible = "pwm-backlight";
> + pwms = <&pwm 0 50000 PWM_POLARITY_INVERTED>;
> + brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>;
> + default-brightness-level = <8>;
> + enable-gpios = <&pio 3 23 GPIO_ACTIVE_HIGH>; /* PD23 */
> + power-supply = <&vdd_bl>;
> + };
> +
> + chosen {
> + stdout-path = "serial0:115200n8";
> + };
> +
> + i2c-csi {
> + compatible = "i2c-gpio";
> + sda-gpios = <&pio 4 13 GPIO_ACTIVE_HIGH>; /* PE13 */
> + scl-gpios = <&pio 4 12 GPIO_ACTIVE_HIGH>; /* PE12 */
> + i2c-gpio,delay-us = <5>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + /* Rear camera */
> + ov5640: camera@3c {
> + compatible = "ovti,ov5640";
> + reg = <0x3c>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&csi_mclk_pin>;
> + clocks = <&ccu CLK_CSI_MCLK>;
> + clock-names = "xclk";
> +
> + AVDD-supply = <&reg_dldo3>;
> + DOVDD-supply = <&reg_aldo1>;
> + DVDD-supply = <&reg_eldo3>;
> + reset-gpios = <&pio 4 14 GPIO_ACTIVE_LOW>; /* PE14 */
> + powerdown-gpios = <&pio 4 15 GPIO_ACTIVE_HIGH>; /* PE15 */
> +
> + port {
> + ov5640_ep: endpoint {
> + remote-endpoint = <&csi_ep>;
> + bus-width = <8>;
> + hsync-active = <1>; /* Active high */
> + vsync-active = <0>; /* Active low */
> + data-active = <1>; /* Active high */
> + pclk-sample = <1>; /* Rising */
> + };
> + };
> + };
> + };
> +
> + speaker_amp: audio-amplifier {
> + compatible = "simple-audio-amplifier";
> + enable-gpios = <&pio 7 7 GPIO_ACTIVE_HIGH>; /* PH7 */
> + sound-name-prefix = "Speaker Amp";
> + };
> +
> + vdd_bl: regulator@0 {
> + compatible = "regulator-fixed";
> + regulator-name = "bl-3v3";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + gpio = <&pio 7 6 GPIO_ACTIVE_HIGH>; /* PH6 */
> + enable-active-high;
> + };
> +
> + wifi_pwrseq: wifi_pwrseq {
> + compatible = "mmc-pwrseq-simple";
> + reset-gpios = <&r_pio 0 2 GPIO_ACTIVE_LOW>; /* PL2 */
> + post-power-on-delay-ms = <200>;
> + };
> +};
> +
> +&codec {
> + status = "okay";
> +};
> +
> +&codec_analog {
> + hpvcc-supply = <&reg_eldo1>;
> + status = "okay";
> +};
> +
> +&cpu0 {
> + cpu-supply = <&reg_dcdc2>;
> +};

I believe you need CPU regulator for each CPU. I'm aware that we share
clock and regulator for all the CPUs but what would happen if you put
CPU0 offline?

> +
> +&csi {
> + status = "okay";
> +
> + port {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + csi_ep: endpoint {
> + remote-endpoint = <&ov5640_ep>;
> + bus-width = <8>;
> + hsync-active = <1>; /* Active high */
> + vsync-active = <0>; /* Active low */
> + data-active = <1>; /* Active high */
> + pclk-sample = <1>; /* Rising */
> + };
> + };
> +};
> +
> +&dai {
> + status = "okay";
> +};
> +
> +&de {
> + status = "okay";
> +};
> +
> +&dphy {
> + status = "okay";
> +};
> +
> +&dsi {
> + vcc-dsi-supply = <&reg_dldo1>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> + status = "okay";
> +
> + panel@0 {
> + compatible = "feixin,k101-im2ba02";
> + reg = <0>;
> + avdd-supply = <&reg_dc1sw>;
> + dvdd-supply = <&reg_dc1sw>;
> + cvdd-supply = <&reg_ldo_io1>;
> + reset-gpios = <&pio 3 24 GPIO_ACTIVE_HIGH>; /* PD24 */
> + backlight = <&backlight>;
> + };
> +};
> +
> +&ehci0 {
> + status = "okay";
> +};
> +
> +&ehci1 {
> + status = "okay";
> +};
> +
> +&i2c0 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&i2c0_pins>;
> + status = "okay";
> +
> + touchscreen@5d {
> + compatible = "goodix,gt9271";
> + reg = <0x5d>;
> + interrupt-parent = <&pio>;
> + interrupts = <7 4 IRQ_TYPE_LEVEL_HIGH>; /* PH4 */
> + irq-gpios = <&pio 7 4 GPIO_ACTIVE_HIGH>; /* PH4 */
> + reset-gpios = <&pio 7 8 GPIO_ACTIVE_HIGH>; /* PH8 */
> + AVDD28-supply = <&reg_ldo_io1>;
> + };
> +};
> +
> +&i2c0_pins {
> + bias-pull-up;
> +};
> +
> +&i2c1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&i2c1_pins>;
> + status = "okay";
> +
> + bma223@18 {
> + compatible = "bosch,bma223", "bosch,bma222e";
> + reg = <0x18>;
> + interrupt-parent = <&pio>;
> + interrupts = <7 5 IRQ_TYPE_LEVEL_HIGH>; /* PH5 */
> + mount-matrix = "0", "-1", "0",
> + "-1", "0", "0",
> + "0", "0", "-1";
> + };
> +};
> +
> +&lradc {
> + vref-supply = <&reg_aldo3>;
> + status = "okay";
> +
> + button-200 {
> + label = "Volume Up";
> + linux,code = <KEY_VOLUMEUP>;
> + channel = <0>;
> + voltage = <200000>;
> + };
> +
> + button-400 {
> + label = "Volume Down";
> + linux,code = <KEY_VOLUMEDOWN>;
> + channel = <0>;
> + voltage = <400000>;
> + };
> +};
> +
> +&mixer1 {
> + status = "okay";
> +};
> +
> +&mmc0 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&mmc0_pins>;
> + vmmc-supply = <&reg_dcdc1>;
> + cd-gpios = <&pio 5 6 GPIO_ACTIVE_LOW>;
> + disable-wp;
> + bus-width = <4>;
> + status = "okay";
> +};
> +
> +&mmc1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&mmc1_pins>;
> + vmmc-supply = <&reg_dldo4>;
> + vqmmc-supply = <&reg_eldo1>;
> + mmc-pwrseq = <&wifi_pwrseq>;
> + bus-width = <4>;
> + non-removable;
> + status = "okay";
> +
> + rtl8723cs: wifi@1 {
> + reg = <1>;
> + };
> +};
> +
> +&mmc2 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&mmc2_pins>;
> + vmmc-supply = <&reg_dcdc1>;
> + vqmmc-supply = <&reg_dcdc1>;
> + bus-width = <8>;
> + non-removable;
> + cap-mmc-hw-reset;
> + status = "okay";
> +};
> +
> +&ohci0 {
> + status = "okay";
> +};
> +
> +&pwm {
> + status = "okay";
> +};
> +
> +&r_rsb {
> + status = "okay";
> +
> + axp803: pmic@3a3 {
> + compatible = "x-powers,axp803";
> + reg = <0x3a3>;
> + interrupt-parent = <&r_intc>;
> + interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
> + x-powers,drive-vbus-en;
> + };
> +};
> +
> +#include "axp803.dtsi"
> +
> +&ac_power_supply {
> + status = "okay";
> +};
> +
> +&battery_power_supply {
> + status = "okay";
> +};
> +
> +&reg_aldo1 {
> + regulator-min-microvolt = <2800000>;
> + regulator-max-microvolt = <2800000>;
> + regulator-name = "dovdd-csi";
> +};
> +
> +&reg_aldo2 {
> + regulator-always-on;
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-name = "vcc-pl";
> +};
> +
> +&reg_aldo3 {
> + regulator-always-on;
> + regulator-min-microvolt = <2700000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-name = "vcc-pll-avcc";
> +};
> +
> +&reg_dc1sw {
> + regulator-name = "vcc-lcd";
> +};
> +
> +&reg_dcdc1 {
> + regulator-always-on;
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-name = "vcc-3v3";
> +};
> +
> +&reg_dcdc2 {
> + regulator-always-on;
> + regulator-min-microvolt = <1000000>;
> + regulator-max-microvolt = <1300000>;
> + regulator-name = "vdd-cpux";
> +};
> +
> +/* DCDC3 is polyphased with DCDC2 */
> +
> +&reg_dcdc5 {
> + regulator-always-on;
> + regulator-min-microvolt = <1200000>;
> + regulator-max-microvolt = <1200000>;
> + regulator-name = "vcc-dram";
> +};
> +
> +&reg_dcdc6 {
> + regulator-always-on;
> + regulator-min-microvolt = <1100000>;
> + regulator-max-microvolt = <1100000>;
> + regulator-name = "vdd-sys";
> +};
> +
> +&reg_dldo1 {
> + regulator-always-on;
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-name = "vcc-hdmi-dsi-sensor";
> +};
> +
> +&reg_dldo3 {
> + regulator-min-microvolt = <2800000>;
> + regulator-max-microvolt = <2800000>;
> + regulator-name = "avdd-csi";
> +};
> +
> +&reg_dldo4 {
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-name = "vcc-wifi";
> +};
> +
> +&reg_drivevbus {
> + regulator-name = "usb0-vbus";
> + status = "okay";
> +};
> +
> +&reg_eldo1 {
> + regulator-always-on;
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-name = "cpvdd";
> +};
> +
> +&reg_eldo2 {
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-name = "vcca-1v8";
> +};
> +
> +&reg_eldo3 {
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-name = "dvdd-1v8-csi";
> +};
> +
> +&reg_fldo1 {
> + regulator-min-microvolt = <1200000>;
> + regulator-max-microvolt = <1200000>;
> + regulator-name = "vcc-1v2-hsic";
> +};
> +
> +&reg_fldo2 {
> + regulator-always-on;
> + regulator-min-microvolt = <1100000>;
> + regulator-max-microvolt = <1100000>;
> + regulator-name = "vdd-cpus";
> +};
> +
> +&reg_ldo_io0 {
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-name = "vcc-usb";
> + status = "okay";
> +};
> +
> +&reg_ldo_io1 {
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-enable-ramp-delay = <3500000>;
> + regulator-name = "vcc-touchscreen";
> + status = "okay";
> +};
> +
> +&reg_rtc_ldo {
> + regulator-name = "vcc-rtc";
> +};
> +
> +&sound {
> + status = "okay";
> + simple-audio-card,aux-devs = <&codec_analog>, <&speaker_amp>;
> + simple-audio-card,widgets = "Microphone", "Internal Microphone Left",
> + "Microphone", "Internal Microphone Right",
> + "Headphone", "Headphone Jack",
> + "Speaker", "Internal Speaker";
> + simple-audio-card,routing =
> + "Left DAC", "AIF1 Slot 0 Left",
> + "Right DAC", "AIF1 Slot 0 Right",
> + "Speaker Amp INL", "LINEOUT",
> + "Speaker Amp INR", "LINEOUT",
> + "Internal Speaker", "Speaker Amp OUTL",
> + "Internal Speaker", "Speaker Amp OUTR",
> + "Headphone Jack", "HP",
> + "AIF1 Slot 0 Left ADC", "Left ADC",
> + "AIF1 Slot 0 Right ADC", "Right ADC",
> + "Internal Microphone Left", "MBIAS",
> + "MIC1", "Internal Microphone Left",
> + "Internal Microphone Right", "HBIAS",
> + "MIC2", "Internal Microphone Right";
> +};
> +
> +&uart0 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&uart0_pb_pins>;
> + status = "okay";
> +};
> +
> +&usb_otg {
> + dr_mode = "otg";
> + status = "okay";
> +};
> +
> +&usb_power_supply {
> + status = "okay";
> +};
> +
> +&usbphy {
> + usb0_id_det-gpios = <&pio 7 9 GPIO_ACTIVE_HIGH>; /* PH9 */
> + usb0_vbus_power-supply = <&usb_power_supply>;
> + usb0_vbus-supply = <&reg_drivevbus>;
> + usb1_vbus-supply = <&reg_ldo_io0>;
> + status = "okay";
> +};
> --
> 2.23.0
>
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