linux-kernel - Re: [PATCH 4/7] ARM: dts: sunxi: Add dtsi for AXP81x PMIC

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Message-ID: <20170929083251.3akrjkujbqeqbh2x@flea>
Date:   Fri, 29 Sep 2017 10:32:51 +0200
From:   Maxime Ripard <maxime.ripard@...e-electrons.com>
To:     Chen-Yu Tsai <wens@...e.org>
Cc:     Lee Jones <lee.jones@...aro.org>, Mark Brown <broonie@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-sunxi@...glegroups.com,
        Quentin Schulz <quentin.schulz@...e-electrons.com>
Subject: Re: [PATCH 4/7] ARM: dts: sunxi: Add dtsi for AXP81x PMIC

Hi,

On Fri, Sep 29, 2017 at 03:25:11AM +0000, Chen-Yu Tsai wrote:
> The AXP81x family of PMIC is used with the Allwinner A83T and H8 SoCs.
> This includes the AXP813 and AXP818. There is no discernible difference
> except the labeling. The AXP813 is paired with the A83T, while the
> AXP818 is paired with the H8.
> 
> This patch adds a dtsi file for all the common bindings for these two
> PMICs. Currently this is just listing all the regulator nodes. The
> regulators are initialized based on their device node names.
> 
> In the future this would be expanded to include power supplies and
> GPIO controllers.
> 
> Signed-off-by: Chen-Yu Tsai <wens@...e.org>
> ---
>  arch/arm/boot/dts/axp81x.dtsi | 139 ++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 139 insertions(+)
>  create mode 100644 arch/arm/boot/dts/axp81x.dtsi
> 
> diff --git a/arch/arm/boot/dts/axp81x.dtsi b/arch/arm/boot/dts/axp81x.dtsi
> new file mode 100644
> index 000000000000..73b761f850c5
> --- /dev/null
> +++ b/arch/arm/boot/dts/axp81x.dtsi
> @@ -0,0 +1,139 @@
> +/*
> + * Copyright 2017 Chen-Yu Tsai
> + *
> + * Chen-Yu Tsai <wens@...e.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.
> + */
> +
> +/* AXP813/818 Integrated Power Management Chip */
> +
> +&axp81x {
> +	interrupt-controller;
> +	#interrupt-cells = <1>;
> +
> +	regulators {
> +		/* Default work frequency for buck regulators */
> +		x-powers,dcdc-freq = <3000>;
> +
> +		reg_dcdc1: dcdc1 {
> +		};

Is there any reason not to add some default regulator names here?

Thanks!
Maxime

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

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