linux-kernel - Re: [PATCH 07/12] riscv: dts: allwinner: Add Allwinner D1 Nezha devicetree

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Message-ID: <2114701.GUh0CODmnK@diego>
Date:   Tue, 16 Aug 2022 10:55:51 +0200
From:   Heiko Stübner <heiko@...ech.de>
To:     Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        linux-sunxi@...ts.linux.dev, Palmer Dabbelt <palmer@...belt.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        linux-riscv@...ts.infradead.org
Cc:     Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Samuel Holland <samuel@...lland.org>,
        Samuel Holland <samuel@...lland.org>
Subject: Re: [PATCH 07/12] riscv: dts: allwinner: Add Allwinner D1 Nezha devicetree

Am Montag, 15. August 2022, 07:08:10 CEST schrieb Samuel Holland:
> "D1 Nezha" is Allwinner's first-party development board for the D1 SoC.
> It was shipped with 512M, 1G, or 2G of DDR3. It supports onboard audio,
> HDMI, gigabit Ethernet, WiFi and Bluetooth, USB 2.0 host and OTG ports,
> plus low-speed I/O from the SoC and a GPIO expander chip.
> 
> Most other D1 boards copied the Nezha's power tree, with the 1.8V rail
> powered by the SoCs internal LDOA, analog domains powered by ALDO, and
> the rest of the board powered by always-on fixed regulators. Some (but
> not all) boards also copied the PWM CPU regulator. To avoid duplication,
> factor out the out the regulator references that are common across all
> known boards.
> 
> Signed-off-by: Samuel Holland <samuel@...lland.org>
> ---
> 
>  arch/riscv/boot/dts/allwinner/Makefile        |   1 +
>  .../sun20i-d1-common-regulators.dtsi          |  51 ++++++
>  .../boot/dts/allwinner/sun20i-d1-nezha.dts    | 171 ++++++++++++++++++
>  3 files changed, 223 insertions(+)
>  create mode 100644 arch/riscv/boot/dts/allwinner/sun20i-d1-common-regulators.dtsi
>  create mode 100644 arch/riscv/boot/dts/allwinner/sun20i-d1-nezha.dts
> 
> diff --git a/arch/riscv/boot/dts/allwinner/Makefile b/arch/riscv/boot/dts/allwinner/Makefile
> index f66554cd5c45..b0a15e8c8d82 100644
> --- a/arch/riscv/boot/dts/allwinner/Makefile
> +++ b/arch/riscv/boot/dts/allwinner/Makefile
> @@ -1 +1,2 @@
>  # SPDX-License-Identifier: GPL-2.0
> +dtb-$(CONFIG_ARCH_SUNXI) += sun20i-d1-nezha.dtb
> diff --git a/arch/riscv/boot/dts/allwinner/sun20i-d1-common-regulators.dtsi b/arch/riscv/boot/dts/allwinner/sun20i-d1-common-regulators.dtsi
> new file mode 100644
> index 000000000000..143a3e710c3c
> --- /dev/null
> +++ b/arch/riscv/boot/dts/allwinner/sun20i-d1-common-regulators.dtsi
> @@ -0,0 +1,51 @@
> +// SPDX-License-Identifier: (GPL-2.0+ or MIT)
> +// Copyright (C) 2021-2022 Samuel Holland <samuel@...lland.org>

in (most/all) other devicetrees this is looks more like

// SPDX-License-Identifier: (GPL-2.0+ or MIT)
/* Copyright (C) 2021-2022 Samuel Holland <samuel@...lland.org> */

otherwise
Tested-by: Heiko Stuebner <heiko@...ech.de>
Reviewed-by: Heiko Stuebner <heiko@...ech.de>