Hi and thanks for the review ! Le mercredi 11 avril 2018 à 09:06 +0200, Maxime Ripard a écrit : > Hi, > > On Tue, Apr 10, 2018 at 11:31:29PM +0200, Paul Kocialkowski wrote: > > 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 > > > > Signed-off-by: Paul Kocialkowski <[email protected]> > > --- > > arch/arm/boot/dts/Makefile | 1 + > > arch/arm/boot/dts/sun7i-a20-ainol-aw1.dts | 358 > > ++++++++++++++++++++++++++++++ > > 2 files changed, 359 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 9f7133b6fba0..03bfacebfdbd 100644 > > --- a/arch/arm/boot/dts/Makefile > > +++ b/arch/arm/boot/dts/Makefile > > @@ -929,6 +929,7 @@ 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..697586991aea > > --- /dev/null > > +++ b/arch/arm/boot/dts/sun7i-a20-ainol-aw1.dts > > @@ -0,0 +1,358 @@ > > +/* > > + * Copyright 2018 Paul Kocialkowski <[email protected]> > > + * > > + * This file is dual-licensed: you can use it either under the > > terms > > + * of the GPL or the X11 license, at your option. Note that this > > dual > > + * licensing only applies to this file, and not this project as a > > + * whole. > > + * > > + * a) This file is free software; you can redistribute it and/or > > + * modify it under the terms of the GNU General Public License > > as > > + * published by the Free Software Foundation; either version 2 > > of the > > + * License, or (at your option) any later version. > > + * > > + * This file is distributed in the hope that it will be useful, > > + * but WITHOUT ANY WARRANTY; without even the implied warranty > > of > > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See > > the > > + * GNU General Public License for more details. > > + * > > + * Or, alternatively, > > + * > > + * b) Permission is hereby granted, free of charge, to any person > > + * obtaining a copy of this software and associated > > documentation > > + * files (the "Software"), to deal in the Software without > > + * restriction, including without limitation the rights to use, > > + * copy, modify, merge, publish, distribute, sublicense, and/or > > + * sell copies of the Software, and to permit persons to whom > > the > > + * Software is furnished to do so, subject to the following > > + * conditions: > > + * > > + * The above copyright notice and this permission notice shall > > be > > + * included in all copies or substantial portions of the > > Software. > > + * > > + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY > > KIND, > > + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE > > WARRANTIES > > + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND > > + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT > > + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, > > + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING > > + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE > > OR > > + * OTHER DEALINGS IN THE SOFTWARE. > > Can you use an SPDX header instead of the whole license text?
Sure, will do in v2.
> > + */
> > +
> > +/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";
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&backlight_enable_pin>;
>
> You don't need any of the pinctrl nodes for the GPIOs
I tried without the pinctrl nodes and got issues on various controllers
(e.g. i2c for the touchscreen) because of the missing pinctrl nodes on
4.16. Maybe I'm missing some patches here?
> > + 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,at070tn92";
> > + #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;
>
> Sigh, we should really convert regulator-fixed to use the proper GPIO
> API here...
>
> > + regulator-boot-on;
> > + };
> > +};
> > +
> > +&codec {
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&codec_pa_pin>;
> > + allwinner,pa-gpios = <&pio 7 15 GPIO_ACTIVE_HIGH>; /* PH15
> > */
> > + status = "okay";
> > +};
> > +
> > +&cpu0 {
> > + cpu-supply = <®_dcdc2>;
> > +};
>
> How was CPUfreq tested?
In fact, I haven't tried it at all, but I can definitely do that with
e.g. ssvb's stress test for various cpufreq functioning points.
> > +
> > +&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 = <®_vcc3v3>;
> > + vddio-supply = <®_vcc3v3>;
> > + st,drdy-int-pin = <1>;
> > + };
> > +};
> > +
> > +&i2c2 {
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&i2c2_pins_a>;
> > + status = "okay";
> > + clock-frequency = <400000>; /* 400 KHz required for
> > GSL1680. */
>
> I'm not sure that comment is worth it. The only device there is the
> touchscreen, so it's kind of obvious that it's the device that needs
> that frequency.
Well, I found a similar comment in the other dts using the same
touchscreen controller. Since the information was rather valuable (it
made it clear that I needed the same clock frequency for that specific
touchscreen), it might help others in the future (even if only when
grepping for gsl1680).
> > +
> > + gsl1680: touchscreen@40 {
> > + compatible = "silead,gsl1680";
> > + reg = <0x40>;
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&touchscreen_power_pin>;
> > + 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 = <®_vcc3v0>;
>
> You should use the proper regulator from the PMIC here.
Fair enough, I'll look into that and try to fix it in v2. I think this
was inspired from another dts using lradc for buttons.
> > + 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 = <®_vcc3v3>;
>
> And here too.
I will also look into it for v2 then.
> > + 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";
> > + };
> > +
> > + backlight_enable_pin: backlight_enable_pin@0 {
> > + pins = "PH7";
> > + function = "gpio_out";
> > + };
> > +
> > + touchscreen_power_pin: touchscreen_power_pin@0 {
> > + pins = "PH20";
> > + function = "gpio_out";
> > + };
> > +
> > + codec_pa_pin: codec_pa_pin@0 {
> > + pins = "PH15";
> > + function = "gpio_out";
> > + };
> > +
> > + usb0_id_detect_pin: usb0_id_detect_pin@0 {
> > + pins = "PH4";
> > + function = "gpio_in";
> > + bias-pull-up;
> > + };
> > +
> > + usb0_vbus_pin: usb0_vbus_pin@0 {
> > + pins = "PB9";
> > + function = "gpio_out";
> > + };
> > +
> > + usb1_vbus_pin: usb1_vbus_pin@0 {
> > + pins = "PH6";
> > + function = "gpio_out";
> > + };
> > +
> > + usb2_vbus_pin: usb2_vbus_pin@0 {
> > + pins = "PH3";
> > + function = "gpio_out";
> > + };
> > +};
> > +
> > +&pwm {
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pwm0_pins_a>;
> > + status = "okay";
> > +};
> > +
> > +&tcon0 {
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&lcd_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 {
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&usb0_id_detect_pin>;
> > + usb0_id_det-gpio = <&pio 7 4 GPIO_ACTIVE_HIGH>; /* PH4 */
> > + usb0_vbus_power-supply = <&usb_power_supply>;
> > + usb0_vbus-supply = <®_usb0_vbus>;
> > + usb1_vbus-supply = <®_usb1_vbus>;
> > + usb2_vbus-supply = <®_usb2_vbus>;
>
> And here as well.
--
Paul Kocialkowski,
developer of free digital technology and hardware support.
Website: https://www.paulk.fr/
Coding blog: https://code.paulk.fr/
Git repositories: https://git.paulk.fr/ https://git.code.paulk.fr/
signature.asc
Description: This is a digitally signed message part
