linux-kernel - Re: [PATCH v2 4/6] arm64: dts: rockchip: add core dtsi file for RK3328 SoCs

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Date:   Thu, 23 Mar 2017 10:16:32 +0100
From:   Heiko Stübner <heiko@...ech.de>
To:     陈亮 <cl@...k-chips.com>
Cc:     robh+dt@...nel.org, mark.rutland@....com, zhengxing@...k-chips.com,
        andy.yan@...k-chips.com, jay.xu@...k-chips.com,
        matthias.bgg@...il.com, paweljarosz3691@...il.com,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        wsa@...-dreams.de, linux-i2c@...r.kernel.org, jic23@...nel.org,
        knaack.h@....de, lars@...afoo.de, pmeerw@...erw.net,
        wxt@...k-chips.com, david.wu@...k-chips.com,
        linux-iio@...r.kernel.org, shawn.lin@...k-chips.com,
        akpm@...ux-foundation.org, dianders@...omium.org,
        yamada.masahiro@...ionext.com, catalin.marinas@....com,
        will.deacon@....com, afaerber@...e.de, shawnguo@...nel.org,
        khilman@...libre.com, arnd@...db.de, fabio.estevam@....com,
        zhangqing@...k-chips.com, kever.yang@...k-chips.com,
        tony.xie@...k-chips.com, huangtao@...k-chips.com,
        yhx@...k-chips.com, rocky.hao@...k-chips.com
Subject: Re: [PATCH v2 4/6] arm64: dts: rockchip: add core dtsi file for RK3328 SoCs

Am Donnerstag, 23. März 2017, 10:06:02 CET schrieb 陈亮:
> Hi， Heiko
> 
> 在 2017年03月21日 16:55, Heiko Stübner 写道:
> > Hi,
> > 
> > Am Donnerstag, 16. März 2017, 21:17:22 CET schrieb cl@...k-chips.com:
> >> From: Liang Chen <cl@...k-chips.com>
> >> 
> >> This patch adds core dtsi file for Rockchip RK3328 SoCs.
> >> 
> >> Signed-off-by: Liang Chen <cl@...k-chips.com>
> >> ---
> >> 
> >>   arch/arm64/boot/dts/rockchip/rk3328.dtsi | 1362
> >> 
> >> ++++++++++++++++++++++++++++++ 1 file changed, 1362 insertions(+)
> >> 
> >>   create mode 100644 arch/arm64/boot/dts/rockchip/rk3328.dtsi
> >> 
> >> diff --git a/arch/arm64/boot/dts/rockchip/rk3328.dtsi
> >> b/arch/arm64/boot/dts/rockchip/rk3328.dtsi new file mode 100644
> >> index 0000000..a92955c
> >> --- /dev/null
> >> +++ b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
> >> @@ -0,0 +1,1362 @@
> >> +/*
> >> + * Copyright (c) 2017 Fuzhou Rockchip Electronics Co., Ltd
> >> + *
> >> + * 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 library 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 library 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 <dt-bindings/clock/rk3328-cru.h>
> >> +#include <dt-bindings/gpio/gpio.h>
> >> +#include <dt-bindings/interrupt-controller/arm-gic.h>
> >> +#include <dt-bindings/interrupt-controller/irq.h>
> >> +#include <dt-bindings/pinctrl/rockchip.h>
> >> +#include <dt-bindings/soc/rockchip,boot-mode.h>
> >> +#include <dt-bindings/power/rk3328-power.h>
> >> +
> >> +/ {
> >> +	compatible = "rockchip,rk3328";
> >> +
> >> +	interrupt-parent = <&gic>;
> >> +	#address-cells = <2>;
> >> +	#size-cells = <2>;
> >> +
> >> +	aliases {
> >> +		serial0 = &uart0;
> >> +		serial1 = &uart1;
> >> +		serial2 = &uart2;
> >> +		i2c0 = &i2c0;
> >> +		i2c1 = &i2c1;
> >> +		i2c2 = &i2c2;
> >> +		i2c3 = &i2c3;
> >> +	};
> >> +
> >> +	cpus {
> >> +		#address-cells = <2>;
> > 
> > #address-cells = <1>? You most likely don't need the 2 field cpu regs?
> 
> This is likely copy from juno board of arm, and i find that #address-cells =
> <1> in some  boards and  #address-cells = <2> in the other boards. All of
> ROCKCHIP Socs set  #address-cells = <2>, so we set #address-cells = <2> to
> keep compatibility?

Ok, at least we're consistent then :-)