This adds support for the Ainol AW1, an A20-based 7" tablet from Ainol.

The following board-specific features are supported: * LCD panel * Backlight * USB OTG * Buttons * Touchscreen (doesn't work without non-free firmware) * Accelerometer * Battery

The following are untested: * Audio output * Audio speakers * USB via SPCI connector

The following are not supported: * Wi-Fi * Bluetooth * NAND * Audio via SPCI connector * Audio via Bluetooth I2S

Signed-off-by: Paul Kocialkowski contact@paulk.fr --- arch/arm/boot/dts/Makefile | 1 + arch/arm/boot/dts/sun7i-a20-ainol-aw1.dts | 275 ++++++++++++++++++++++ 2 files changed, 276 insertions(+) create mode 100644 arch/arm/boot/dts/sun7i-a20-ainol-aw1.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index 7e2424957809..4a80971f2bc9 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -946,6 +946,7 @@ dtb-$(CONFIG_MACH_SUN6I) += \ sun6i-a31s-sinovoip-bpi-m2.dtb \ sun6i-a31s-yones-toptech-bs1078-v2.dtb dtb-$(CONFIG_MACH_SUN7I) += \ + sun7i-a20-ainol-aw1.dtb \ sun7i-a20-bananapi.dtb \ sun7i-a20-bananapi-m1-plus.dtb \ sun7i-a20-bananapro.dtb \ diff --git a/arch/arm/boot/dts/sun7i-a20-ainol-aw1.dts b/arch/arm/boot/dts/sun7i-a20-ainol-aw1.dts new file mode 100644 index 000000000000..9a1d54a9f9a0 --- /dev/null +++ b/arch/arm/boot/dts/sun7i-a20-ainol-aw1.dts @@ -0,0 +1,275 @@ +/* + * Copyright (C) 2018 Paul Kocialkowski contact@paulk.fr + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +/dts-v1/; +#include "sun7i-a20.dtsi" +#include "sunxi-common-regulators.dtsi" + +#include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/input/input.h> +#include <dt-bindings/interrupt-controller/irq.h> +#include <dt-bindings/pwm/pwm.h> + +/ { + model = "Ainol AW1"; + compatible = "ainol,ainol-aw1", "allwinner,sun7i-a20"; + + aliases { + serial0 = &uart0; + }; + + chosen { + stdout-path = "serial0:115200n8"; + }; + + 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 = <5>; + enable-gpios = <&pio 7 7 GPIO_ACTIVE_HIGH>; /* PH7 */ + }; + + panel: panel { + compatible = "innolux,at070tn90"; + #address-cells = <1>; + #size-cells = <0>; + power-supply = <&panel_power>; + backlight = <&backlight>; + + port@0 { + reg = <0>; + #address-cells = <1>; + #size-cells = <0>; + + panel_input: endpoint@0 { + reg = <0>; + remote-endpoint = <&tcon0_out_panel>; + }; + }; + }; + + panel_power: panel_power { + compatible = "regulator-fixed"; + pinctrl-names = "default"; + pinctrl-0 = <&panel_power_pin>; + regulator-name = "panel-power"; + regulator-min-microvolt = <10400000>; + regulator-max-microvolt = <10400000>; + gpio = <&pio 7 8 GPIO_ACTIVE_HIGH>; /* PH8 */ + enable-active-high; + regulator-boot-on; + }; +}; + +&codec { + allwinner,pa-gpios = <&pio 7 15 GPIO_ACTIVE_HIGH>; /* PH15 */ + status = "okay"; +}; + +&cpu0 { + cpu-supply = <&reg_dcdc2>; +}; + +&de { + status = "okay"; +}; + +&ehci0 { + status = "okay"; +}; + +&ehci1 { + status = "okay"; +}; + +&i2c0 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c0_pins_a>; + status = "okay"; + + axp209: pmic@34 { + reg = <0x34>; + interrupt-parent = <&nmi_intc>; + interrupts = <0 IRQ_TYPE_LEVEL_LOW>; + }; +}; + +&i2c1 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c1_pins_a>; + status = "okay"; + + lis3dh: accelerometer@18 { + compatible = "st,lis3dh-accel"; + reg = <0x18>; + vdd-supply = <&reg_vcc3v3>; + vddio-supply = <&reg_vcc3v3>; + st,drdy-int-pin = <1>; + }; +}; + +&i2c2 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c2_pins_a>; + status = "okay"; + clock-frequency = <400000>; + + gsl1680: touchscreen@40 { + compatible = "silead,gsl1680"; + reg = <0x40>; + interrupt-parent = <&pio>; + interrupts = <7 21 IRQ_TYPE_EDGE_FALLING>; /* EINT21 (PH21) */ + power-gpios = <&pio 7 20 GPIO_ACTIVE_HIGH>; /* PH20 */ + firmware-name = "gsl1680-ainol-aw1.fw"; + touchscreen-size-x = <480>; + touchscreen-size-y = <800>; + touchscreen-swapped-x-y; + touchscreen-inverted-y; + silead,max-fingers = <5>; + }; +}; + +&lradc { + vref-supply = <&reg_ldo2>; + status = "okay"; + + button@571 { + label = "Volume Up"; + linux,code = <KEY_VOLUMEUP>; + channel = <0>; + voltage = <571428>; + }; + + button@761 { + label = "Volume Down"; + linux,code = <KEY_VOLUMEDOWN>; + channel = <0>; + voltage = <761904>; + }; + + button@952 { + label = "Home"; + linux,code = <KEY_HOME>; + channel = <0>; + voltage = <952380>; + }; +}; + +&mmc0 { + pinctrl-names = "default"; + pinctrl-0 = <&mmc0_pins_a>; + vmmc-supply = <&reg_vcc3v3>; + bus-width = <4>; + cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */ + cd-inverted; + status = "okay"; +}; + +&ohci0 { + status = "okay"; +}; + +&ohci1 { + status = "okay"; +}; + +&otg_sram { + status = "okay"; +}; + +&pio { + panel_power_pin: panel_power_pin@0 { + pins = "PH8"; + function = "gpio_out"; + }; +}; + +&pwm { + pinctrl-names = "default"; + pinctrl-0 = <&pwm0_pins_a>; + status = "okay"; +}; + +&tcon0 { + pinctrl-names = "default"; + pinctrl-0 = <&lcd0_rgb666_pins>; + status = "okay"; +}; + +&tcon0_out { + tcon0_out_panel: endpoint@0 { + reg = <0>; + remote-endpoint = <&panel_input>; + }; +}; + +&uart0 { + pinctrl-names = "default"; + pinctrl-0 = <&uart0_pins_a>; + status = "okay"; +}; + +&usb_otg { + dr_mode = "otg"; + status = "okay"; +}; + +&usbphy { + usb0_id_det-gpio = <&pio 7 4 GPIO_ACTIVE_HIGH>; /* PH4 */ + usb0_vbus_power-supply = <&usb_power_supply>; + usb0_vbus-supply = <&reg_usb0_vbus>; + usb1_vbus-supply = <&reg_usb1_vbus>; + usb2_vbus-supply = <&reg_usb2_vbus>; + status = "okay"; +}; + +#include "axp209.dtsi" + +&battery_power_supply { + status = "okay"; +}; + +&reg_dcdc2 { + regulator-always-on; + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <1450000>; + regulator-name = "vdd-cpu"; +}; + +&reg_dcdc3 { + regulator-always-on; + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <1400000>; + regulator-name = "vdd-int-dll"; +}; + +&reg_ldo1 { + regulator-name = "vdd-rtc"; +}; + +&reg_ldo2 { + regulator-always-on; + regulator-min-microvolt = <3000000>; + regulator-max-microvolt = <3000000>; + regulator-name = "avcc"; +}; + +&reg_usb0_vbus { + status = "okay"; +}; + +&reg_usb1_vbus { + status = "okay"; +}; + +&reg_usb2_vbus { + status = "okay"; +}; + +&usb_power_supply { + status = "okay"; +};

Hi,

On Sun, May 06, 2018 at 11:48:59PM +0200, Paul Kocialkowski wrote:

This adds timings for the RGB666 variant of the Innolux AT070TN90 panel, as found on the Ainol AW1 tablet.

The panel also supports RGB888 output. When RGB666 mode is used instead, the two extra lanes per component are grounded.

In the future, it might become necessary to introduce a dedicated device-tree property to specify the bus format and maybe specify it in the mode description instead of panel description so that the appropriate mode can be selected for each bus format.

Signed-off-by: Paul Kocialkowski contact@paulk.fr

A change log would be nice. Also, you mentionned in your first version that the screen was an AT070TN92, and now you mention that it is an AT070TN90, which one is it?

Maxime

---

drivers/gpu/drm/panel/panel-simple.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+)

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c index cbf1ab404ee7..351742df8ee1 100644 --- a/drivers/gpu/drm/panel/panel-simple.c +++ b/drivers/gpu/drm/panel/panel-simple.c @@ -1086,6 +1086,29 @@ static const struct panel_desc innolux_at070tn92 = { .bus_format = MEDIA_BUS_FMT_RGB888_1X24, };

+static const struct drm_display_mode innolux_at070tn90_mode = {

• .clock = 40000,
• .hdisplay = 800,
• .hsync_start = 800 + 112,
• .hsync_end = 800 + 112 + 1,
• .htotal = 800 + 112 + 1 + 87,
• .vdisplay = 480,
• .vsync_start = 480 + 141,
• .vsync_end = 480 + 141 + 1,
• .vtotal = 480 + 141 + 1 + 38,
• .vrefresh = 60,

+};

+static const struct panel_desc innolux_at070tn90 = {

• .modes = &innolux_at070tn90_mode,
• .num_modes = 1,
• .size = {

• .width = 154,
  

• .height = 86,
  

• },
• .bus_format = MEDIA_BUS_FMT_RGB666_1X18,

+};

static const struct display_timing innolux_g101ice_l01_timing = { .pixelclock = { 60400000, 71100000, 74700000 }, .hactive = { 1280, 1280, 1280 }, @@ -2154,6 +2177,9 @@ static const struct of_device_id platform_of_match[] = { }, { .compatible = "innolux,at070tn92", .data = &innolux_at070tn92,

• }, {

• .compatible = "innolux,at070tn90",
  

• .data = &innolux_at070tn90,
  

This should be ordered alphabetically.

Maxime