[linux-sunxi] Re: [PATCH] ARM: sun8i: h2+: add support for Banana Pi M2 Zero board

2018-10-06 Thread 'MS71' via linux-sunxi 
Hi,
i am just doing something with this board.
For my understand, support for the AP6212 BT modules is not implemented in 
the DT.
I am missing the 32k clock output.
Maybe, support for rfkill is missing as well.

May I ask you, help me adding this?

Maik

Am Mittwoch, 1. November 2017 10:39:09 UTC+1 schrieb Icenowy Zheng:
>
> Banana Pi M2 Zero board is a H2+-based board by Sinovoip, with a form 
> factor and GPIO holes similar to Raspberry Pi Zero. 
>
> It features: 
> - Allwinner H2+ SoC 
> - Single-chip (16-bit) 512MiB DDR3 DRAM 
> - Ampak AP6212 Wi-Fi/Bluetooth module 
> - MicroSD slot 
> - Two MicroUSB Type-B ports (one can only be used to power the board and 
>   the other features OTG functionality) 
> - Two keys, a reset and a GPIO-connected key. 
> - HDMI Type-C (miniHDMI) connector connected to the HDMI part of H2+. 
> - CSI connector to connect the camera sensor provided by Sinovoip. 
>
> Signed-off-by: Icenowy Zheng > 
> --- 
>  arch/arm/boot/dts/Makefile |   1 + 
>  .../boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts| 156 
> + 
>  2 files changed, 157 insertions(+) 
>  create mode 100644 arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts 
>
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile 
> index 3a5b79fd8198..803dbdf03916 100644 
> --- a/arch/arm/boot/dts/Makefile 
> +++ b/arch/arm/boot/dts/Makefile 
> @@ -930,6 +930,7 @@ dtb-$(CONFIG_MACH_SUN8I) += \ 
>  sun8i-a83t-bananapi-m3.dtb \ 
>  sun8i-a83t-cubietruck-plus.dtb \ 
>  sun8i-a83t-tbs-a711.dtb \ 
> +sun8i-h2-plus-bananapi-m2-zero.dtb \ 
>  sun8i-h2-plus-orangepi-zero.dtb \ 
>  sun8i-h3-bananapi-m2-plus.dtb \ 
>  sun8i-h3-beelink-x2.dtb \ 
> diff --git a/arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts 
> b/arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts 
> new file mode 100644 
> index ..414258da4308 
> --- /dev/null 
> +++ b/arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts 
> @@ -0,0 +1,156 @@ 
> +/* 
> + * Copyright (C) 2017 Icenowy Zheng > 
> + * 
> + * Based on sun8i-h3-bananapi-m2-plus.dts, which is: 
> + *   Copyright (C) 2016 Chen-Yu Tsai > 
> + * 
> + * 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. 
> + */ 
> + 
> +/dts-v1/; 
> +#include "sun8i-h3.dtsi" 
> +#include "sunxi-common-regulators.dtsi" 
> + 
> +#include  
> +#include  
> + 
> +/ { 
> +model = "Banana Pi BPI-M2-Zero"; 
> +compatible = "sinovoip,bpi-m2-zero", "allwinner,sun8i-h2-plus"; 
> + 
> +aliases { 
> +serial0 =  
> +serial1 =  
> +}; 
> + 
> +chosen { 
> +stdout-path = "serial0:115200n8"; 
> +}; 
> + 
> +leds { 
> +compatible = "gpio-leds"; 
> +pinctrl-names = "default"; 
> + 
> +pwr_led { 
> +label = "bananapi-m2-zero:red:pwr"; 
> +gpios =

[linux-sunxi] Re: [PATCH] ARM: sun8i: h2+: add support for Banana Pi M2 Zero board

2018-04-10 Thread Carlos Alberto 
lol , very helpfull !

Em quarta-feira, 1 de novembro de 2017 07:39:09 UTC-2, Icenowy Zheng 
escreveu:
>
> Banana Pi M2 Zero board is a H2+-based board by Sinovoip, with a form 
> factor and GPIO holes similar to Raspberry Pi Zero. 
>
> It features: 
> - Allwinner H2+ SoC 
> - Single-chip (16-bit) 512MiB DDR3 DRAM 
> - Ampak AP6212 Wi-Fi/Bluetooth module 
> - MicroSD slot 
> - Two MicroUSB Type-B ports (one can only be used to power the board and 
>   the other features OTG functionality) 
> - Two keys, a reset and a GPIO-connected key. 
> - HDMI Type-C (miniHDMI) connector connected to the HDMI part of H2+. 
> - CSI connector to connect the camera sensor provided by Sinovoip. 
>
> Signed-off-by: Icenowy Zheng  
> --- 
>  arch/arm/boot/dts/Makefile |   1 + 
>  .../boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts| 156 
> + 
>  2 files changed, 157 insertions(+) 
>  create mode 100644 arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts 
>
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile 
> index 3a5b79fd8198..803dbdf03916 100644 
> --- a/arch/arm/boot/dts/Makefile 
> +++ b/arch/arm/boot/dts/Makefile 
> @@ -930,6 +930,7 @@ dtb-$(CONFIG_MACH_SUN8I) += \ 
>  sun8i-a83t-bananapi-m3.dtb \ 
>  sun8i-a83t-cubietruck-plus.dtb \ 
>  sun8i-a83t-tbs-a711.dtb \ 
> +sun8i-h2-plus-bananapi-m2-zero.dtb \ 
>  sun8i-h2-plus-orangepi-zero.dtb \ 
>  sun8i-h3-bananapi-m2-plus.dtb \ 
>  sun8i-h3-beelink-x2.dtb \ 
> diff --git a/arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts 
> b/arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts 
> new file mode 100644 
> index ..414258da4308 
> --- /dev/null 
> +++ b/arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts 
> @@ -0,0 +1,156 @@ 
> +/* 
> + * Copyright (C) 2017 Icenowy Zheng  
> + * 
> + * Based on sun8i-h3-bananapi-m2-plus.dts, which is: 
> + *   Copyright (C) 2016 Chen-Yu Tsai  
> + * 
> + * 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. 
> + */ 
> + 
> +/dts-v1/; 
> +#include "sun8i-h3.dtsi" 
> +#include "sunxi-common-regulators.dtsi" 
> + 
> +#include  
> +#include  
> + 
> +/ { 
> +model = "Banana Pi BPI-M2-Zero"; 
> +compatible = "sinovoip,bpi-m2-zero", "allwinner,sun8i-h2-plus"; 
> + 
> +aliases { 
> +serial0 =  
> +serial1 =  
> +}; 
> + 
> +chosen { 
> +stdout-path = "serial0:115200n8"; 
> +}; 
> + 
> +leds { 
> +compatible = "gpio-leds"; 
> +pinctrl-names = "default"; 
> + 
> +pwr_led { 
> +label = "bananapi-m2-zero:red:pwr"; 
> +gpios = <_pio 0 10 GPIO_ACTIVE_HIGH>; /* PL10 
> */ 
> +default-state = "on"; 
> +}; 
> +}; 
> + 
> +gpio_keys { 
> +

Re: [linux-sunxi] Re: [PATCH] ARM: sun8i: h2+: add support for Banana Pi M2 Zero board

2017-11-13 Thread Maxime Ripard 
Hi,

On Fri, Nov 03, 2017 at 07:53:17AM +0800, Icenowy Zheng wrote:
> 在 2017-11-02 23:50，Maxime Ripard 写道：
> > On Thu, Nov 02, 2017 at 05:07:30PM +0800, Icenowy Zheng wrote:
> > > > > + {
> > > > > + pinctrl-names = "default";
> > > > > + pinctrl-0 = <_pins_a>;
> > > > > + vmmc-supply = <_vcc3v3>;
> > > > > + bus-width = <4>;
> > > > > + /*
> > > > > +  * In different revisions the board have different card detect
> > > > > +  * configuration.
> > > > > +  */
> > > >
> > > > Which ones?
> > > 
> > > In the sample batch (1.2V fixed voltage) the card detect is normal
> > > (PF6 low as inserted), however in the final batch (1.1V/1.3V
> > > switchable) it's inverted at PF6 (high as inserted).
> > 
> > Then just use the final version's.
> > 
> > > > > + {
> > > > > + usb0_id_det-gpios = <_pio 0 6 GPIO_ACTIVE_HIGH>; /* PL6 */
> > > > > + /* USB OTG VBUS is directly connected to 5V without any 
> > > > > regulators
> > > > > */
> > > >
> > > > So it cannot operate in OTG, but it's host only?
> > > 
> > > It can operate in OTG -- you can power the board via the OTG port,
> > > as the VBUS is not gated from 5V at all, so 5V power at VBUS will
> > > power up the board. Yes, it's a bit unsafe, but the board designer
> > > did it.
> > 
> > What will provide the 5v in the first place then if a USB device is
> > connected to the micro-USB connector?
> 
> There're two micro-USB connectors, one is power-only and another is
> OTG. The Vbus of these two connectors are connected together, so
> the external USB device will be powered just by the power input
> from the power-only USB port.

Can you put that in the comment?

Thanks.

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

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Re: [linux-sunxi] Re: [PATCH] ARM: sun8i: h2+: add support for Banana Pi M2 Zero board

2017-11-02 Thread Maxime Ripard 
On Thu, Nov 02, 2017 at 05:07:30PM +0800, Icenowy Zheng wrote:
> > > + {
> > > + pinctrl-names = "default";
> > > + pinctrl-0 = <_pins_a>;
> > > + vmmc-supply = <_vcc3v3>;
> > > + bus-width = <4>;
> > > + /*
> > > +  * In different revisions the board have different card detect
> > > +  * configuration.
> > > +  */
> > 
> > Which ones?
> 
> In the sample batch (1.2V fixed voltage) the card detect is normal
> (PF6 low as inserted), however in the final batch (1.1V/1.3V
> switchable) it's inverted at PF6 (high as inserted).

Then just use the final version's.

> > > + {
> > > + usb0_id_det-gpios = <_pio 0 6 GPIO_ACTIVE_HIGH>; /* PL6 */
> > > + /* USB OTG VBUS is directly connected to 5V without any regulators
> > > */
> > 
> > So it cannot operate in OTG, but it's host only?
> 
> It can operate in OTG -- you can power the board via the OTG port,
> as the VBUS is not gated from 5V at all, so 5V power at VBUS will
> power up the board. Yes, it's a bit unsafe, but the board designer
> did it.

What will provide the 5v in the first place then if a USB device is
connected to the micro-USB connector?

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

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Re: [linux-sunxi] Re: [PATCH] ARM: sun8i: h2+: add support for Banana Pi M2 Zero board

2017-11-02 Thread Icenowy Zheng 

在 2017-11-02 17:02，Maxime Ripard 写道：

Hi,

On Wed, Nov 01, 2017 at 05:38:14PM +0800, Icenowy Zheng wrote:

Banana Pi M2 Zero board is a H2+-based board by Sinovoip, with a form
factor and GPIO holes similar to Raspberry Pi Zero.

It features:
- Allwinner H2+ SoC
- Single-chip (16-bit) 512MiB DDR3 DRAM
- Ampak AP6212 Wi-Fi/Bluetooth module
- MicroSD slot
- Two MicroUSB Type-B ports (one can only be used to power the board 
and

  the other features OTG functionality)
- Two keys, a reset and a GPIO-connected key.
- HDMI Type-C (miniHDMI) connector connected to the HDMI part of H2+.
- CSI connector to connect the camera sensor provided by Sinovoip.

Signed-off-by: Icenowy Zheng 
---
 arch/arm/boot/dts/Makefile |   1 +
 .../boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts| 156 
+

 2 files changed, 157 insertions(+)
 create mode 100644 
arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts


diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 3a5b79fd8198..803dbdf03916 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -930,6 +930,7 @@ dtb-$(CONFIG_MACH_SUN8I) += \
sun8i-a83t-bananapi-m3.dtb \
sun8i-a83t-cubietruck-plus.dtb \
sun8i-a83t-tbs-a711.dtb \
+   sun8i-h2-plus-bananapi-m2-zero.dtb \
sun8i-h2-plus-orangepi-zero.dtb \
sun8i-h3-bananapi-m2-plus.dtb \
sun8i-h3-beelink-x2.dtb \
diff --git a/arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts 
b/arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts

new file mode 100644
index ..414258da4308
--- /dev/null
+++ b/arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts
@@ -0,0 +1,156 @@
+/*
+ * Copyright (C) 2017 Icenowy Zheng 
+ *
+ * Based on sun8i-h3-bananapi-m2-plus.dts, which is:
+ *   Copyright (C) 2016 Chen-Yu Tsai 
+ *
+ * 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.
+ */
+
+/dts-v1/;
+#include "sun8i-h3.dtsi"
+#include "sunxi-common-regulators.dtsi"
+
+#include 
+#include 
+
+/ {
+   model = "Banana Pi BPI-M2-Zero";
+   compatible = "sinovoip,bpi-m2-zero", "allwinner,sun8i-h2-plus";
+
+   aliases {
+   serial0 = 
+   serial1 = 
+   };
+
+   chosen {
+   stdout-path = "serial0:115200n8";
+   };
+
+   leds {
+   compatible = "gpio-leds";
+   pinctrl-names = "default";


This property is useless


+
+   pwr_led {
+   label = "bananapi-m2-zero:red:pwr";
+   gpios = <_pio 0 10 GPIO_ACTIVE_HIGH>; /* PL10 */
+   default-state = "on";
+   };
+   };
+
+   gpio_keys {
+   compatible = "gpio-keys";
+   pinctrl-names = "default";


Same thing here.


+
+   sw4 {


That node should be called power.


+   label = "power";
+   linux,code = ;
+   gpios = <_pio 0 3 GPIO_ACTIVE_LOW>;
+   };
+   };
+
+

[linux-sunxi] Re: [PATCH] ARM: sun8i: h2+: add support for Banana Pi M2 Zero board

2017-11-02 Thread Maxime Ripard 
Hi,

On Wed, Nov 01, 2017 at 05:38:14PM +0800, Icenowy Zheng wrote:
> Banana Pi M2 Zero board is a H2+-based board by Sinovoip, with a form
> factor and GPIO holes similar to Raspberry Pi Zero.
> 
> It features:
> - Allwinner H2+ SoC
> - Single-chip (16-bit) 512MiB DDR3 DRAM
> - Ampak AP6212 Wi-Fi/Bluetooth module
> - MicroSD slot
> - Two MicroUSB Type-B ports (one can only be used to power the board and
>   the other features OTG functionality)
> - Two keys, a reset and a GPIO-connected key.
> - HDMI Type-C (miniHDMI) connector connected to the HDMI part of H2+.
> - CSI connector to connect the camera sensor provided by Sinovoip.
> 
> Signed-off-by: Icenowy Zheng 
> ---
>  arch/arm/boot/dts/Makefile |   1 +
>  .../boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts| 156 
> +
>  2 files changed, 157 insertions(+)
>  create mode 100644 arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts
> 
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index 3a5b79fd8198..803dbdf03916 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -930,6 +930,7 @@ dtb-$(CONFIG_MACH_SUN8I) += \
>   sun8i-a83t-bananapi-m3.dtb \
>   sun8i-a83t-cubietruck-plus.dtb \
>   sun8i-a83t-tbs-a711.dtb \
> + sun8i-h2-plus-bananapi-m2-zero.dtb \
>   sun8i-h2-plus-orangepi-zero.dtb \
>   sun8i-h3-bananapi-m2-plus.dtb \
>   sun8i-h3-beelink-x2.dtb \
> diff --git a/arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts 
> b/arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts
> new file mode 100644
> index ..414258da4308
> --- /dev/null
> +++ b/arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts
> @@ -0,0 +1,156 @@
> +/*
> + * Copyright (C) 2017 Icenowy Zheng 
> + *
> + * Based on sun8i-h3-bananapi-m2-plus.dts, which is:
> + *   Copyright (C) 2016 Chen-Yu Tsai 
> + *
> + * 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.
> + */
> +
> +/dts-v1/;
> +#include "sun8i-h3.dtsi"
> +#include "sunxi-common-regulators.dtsi"
> +
> +#include 
> +#include 
> +
> +/ {
> + model = "Banana Pi BPI-M2-Zero";
> + compatible = "sinovoip,bpi-m2-zero", "allwinner,sun8i-h2-plus";
> +
> + aliases {
> + serial0 = 
> + serial1 = 
> + };
> +
> + chosen {
> + stdout-path = "serial0:115200n8";
> + };
> +
> + leds {
> + compatible = "gpio-leds";
> + pinctrl-names = "default";

This property is useless

> +
> + pwr_led {
> + label = "bananapi-m2-zero:red:pwr";
> + gpios = <_pio 0 10 GPIO_ACTIVE_HIGH>; /* PL10 */
> + default-state = "on";
> + };
> + };
> +
> + gpio_keys {
> + compatible = "gpio-keys";
> + pinctrl-names = "default";

Same thing here.

> +
> + sw4 {

That node should be called power.

> + label = "power";
> +