Hi,

On Sun, Mar 25, 2018 at 02:35:59PM +0200, Paul Kocialkowski wrote:

This introduces a newer dts for the Ainol AW1, that will be the base for introducing upstream Linux support for the device.

This update in U-Boot allows fixing USB OTG detection, that was missing from the previous dts.

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

We usually will use the Linux DTS once it's been merged, so please send it there first.

---

arch/arm/dts/sun7i-a20-ainol-aw1.dts | 215 ++++++++++++++++++++++++++++++++++- 1 file changed, 211 insertions(+), 4 deletions(-)

diff --git a/arch/arm/dts/sun7i-a20-ainol-aw1.dts b/arch/arm/dts/sun7i-a20-ainol-aw1.dts index 8b730cdfae..f62d67d6d6 100644 --- a/arch/arm/dts/sun7i-a20-ainol-aw1.dts +++ b/arch/arm/dts/sun7i-a20-ainol-aw1.dts @@ -1,17 +1,57 @@ /*

• • Copyright 2015 Hans de Goede hdegoede@redhat.com

• • Copyright 2018 Paul Kocialkowski contact@paulk.fr

• • Minimal dts file for the Ainol AW1 for u-boot only

• • 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.

• • SPDX-License-Identifier: GPL-2.0+ or X11

• • 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.
    

  */

/dts-v1/; #include "sun7i-a20.dtsi" +#include "sunxi-common-regulators.dtsi"

Since you have regulator support, you shouldn't need these anymore.

+#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,aw1", "allwinner,sun7i-a20";

• compatible = "ainol,ainol-aw1", "allwinner,sun7i-a20";

  aliases { serial0 = &uart0;

@@ -20,6 +60,116 @@ chosen { stdout-path = "serial0:115200n8"; };

• backlight: backlight {

• compatible = "pwm-backlight";
  

• pinctrl-names = "default";
  

• pinctrl-0 = <&backlight_enable_pin>;
  

• 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 7 7 GPIO_ACTIVE_HIGH>; /* PH7 */
  

• };

+};

+&cpu0 {

• cpu-supply = <&reg_dcdc2>;

+};

+&otg_sram {

• status = "okay";

+};

+&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";

+};

+&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 = <&reg_usb0_vbus>;
• usb1_vbus-supply = <&reg_usb1_vbus>;
• usb2_vbus-supply = <&reg_usb2_vbus>;
• status = "okay";

+};

+&ehci0 {

• status = "okay";

+};

+&ohci0 {

• status = "okay";

+};

+&ehci1 {

• status = "okay";

+};

+&ohci1 {

• status = "okay";

+};

Your nodes should be ordered by alphabetical order (at least as much as possible, this isn't really doable for all the AXP stuff).

+&pio {

• backlight_enable_pin: backlight_enable_pin@0 {

• pins = "PH7";
  

• 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";
  

• };

+};

We're trying to remove these nodes from our DTs, it's redundant since the GPIOs will request the pin in pinctrl when being taken.

+&pwm {

• pinctrl-names = "default";
• pinctrl-0 = <&pwm0_pins_a>;
• status = "okay";

+};

+&lradc {

• vref-supply = <&reg_vcc3v0>;
• 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>;
  

• };

};

&uart0 { @@ -27,3 +177,60 @@ pinctrl-0 = <&uart0_pins_a>; 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>;
  

• };

+};

+#include "axp209.dtsi"

+&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 {

• pinctrl-0 = <&usb0_vbus_pin>;
• gpio = <&pio 1 9 GPIO_ACTIVE_HIGH>; /*PB9 */
• status = "okay";

+};

+&reg_usb1_vbus {

• status = "okay";

+};

+&reg_usb2_vbus {

• status = "okay";

+};

+&usb_power_supply {

• status = "okay";

+};

2.16.2