Re: [PATCH 3/3] ARM: dts: sun8i: add device tree for Lichee Pi Zero with Dock

[Icenowy Zheng <icenowy-ymACFijhrKM@public.gmane.org>]

2017年3月23日 03:24于 Maxime Ripard <maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>写道：
>
> On Fri, Mar 17, 2017 at 11:43:43PM +0800, Icenowy Zheng wrote: 
> > Lichee Pi Zero features a dock, which adds some functions, and should be 
> > soldered with the core board of Lichee Pi Zero. 
> > 
> > Add support for the dock as a new dts, as soldering is needed to make 
> > the dock usable and there's functions enabled on the dock that is 
> > unavailable at the 2.54mm pins of the core board. 
> > 
> > Signed-off-by: Icenowy Zheng <icenowy-ymACFijhrKM@public.gmane.org> 
> > --- 
> >  arch/arm/boot/dts/Makefile                         |  3 +- 
> >  arch/arm/boot/dts/sun8i-v3s-licheepi-zero-dock.dts | 98 ++++++++++++++++++++++ 
> >  2 files changed, 100 insertions(+), 1 deletion(-) 
> >  create mode 100644 arch/arm/boot/dts/sun8i-v3s-licheepi-zero-dock.dts 
> > 
> > diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile 
> > index 43c27b624f94..de52d403f818 100644 
> > --- a/arch/arm/boot/dts/Makefile 
> > +++ b/arch/arm/boot/dts/Makefile 
> > @@ -878,7 +878,8 @@ dtb-$(CONFIG_MACH_SUN8I) += \ 
> >  sun8i-h3-orangepi-plus.dtb \ 
> >  sun8i-h3-orangepi-plus2e.dtb \ 
> >  sun8i-r16-parrot.dtb \ 
> > - sun8i-v3s-licheepi-zero.dtb 
> > + sun8i-v3s-licheepi-zero.dtb \ 
> > + sun8i-v3s-licheepi-zero-dock.dtb 
> >  dtb-$(CONFIG_MACH_SUN9I) += \ 
> >  sun9i-a80-optimus.dtb \ 
> >  sun9i-a80-cubieboard4.dtb 
> > diff --git a/arch/arm/boot/dts/sun8i-v3s-licheepi-zero-dock.dts b/arch/arm/boot/dts/sun8i-v3s-licheepi-zero-dock.dts 
> > new file mode 100644 
> > index 000000000000..956fa47fde53 
> > --- /dev/null 
> > +++ b/arch/arm/boot/dts/sun8i-v3s-licheepi-zero-dock.dts 
> > @@ -0,0 +1,98 @@ 
> > +/* 
> > + * Copyright (C) 2016 Icenowy Zheng <icenowy-ymACFijhrKM@public.gmane.org> 
> > + * 
> > + * 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. 
> > + */ 
> > + 
> > +#include "sun8i-v3s-licheepi-zero.dts" 
> > + 
> > +#include <dt-bindings/input/input.h> 
> > + 
> > +/ { 
> > + model = "Lichee Pi Zero with Dock"; 
> > + compatible = "licheepi,licheepi-zero-dock", "licheepi,licheepi-zero", 
> > +      "allwinner,sun8i-v3s"; 
> > +}; 
> > + 
> > +&leds { 
> > + /* The LEDs conflict with MMC1 slot */ 
>
> How does it conflicts? 

They both use PGx.

>
> > +&mmc1 { 
> > + pinctrl-0 = <&mmc1_pins>; 
> > + pinctrl-names = "default"; 
> > + broken-cd; 
>
> There's no card-detect on a GPIO? 

Yes.

All SD slots on Lichee Pi series have no card-detect.

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

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