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Message-ID: <85123b46-188c-47b3-88e9-3122ad67ec47@linaro.org>
Date: Mon, 18 Mar 2024 08:39:13 +0100
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Subject: Re: [PATCH 1/3] arm64: dts: S32G3: Introduce device tree for
 S32G-VNP-RDB3
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To: Ghennadi Procopciuc <ghennadi.procopciuc@oss.nxp.com>,
 Wadim Mueller <wafgo01@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>,
 Eric Dumazet <edumazet@google.com>, Jakub Kicinski <kuba@kernel.org>,
 Paolo Abeni <pabeni@redhat.com>, Rob Herring <robh+dt@kernel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
 Conor Dooley <conor+dt@kernel.org>, Shawn Guo <shawnguo@kernel.org>,
 Sascha Hauer <s.hauer@pengutronix.de>,
 Pengutronix Kernel Team <kernel@pengutronix.de>,
 Fabio Estevam <festevam@gmail.com>, NXP Linux Team <linux-imx@nxp.com>,
 Chester Lin <chester62515@gmail.com>, =?UTF-8?Q?Andreas_F=C3=A4rber?=
 <afaerber@suse.de>, Matthias Brugger <mbrugger@suse.com>,
 NXP S32 Linux Team <s32@nxp.com>,
 Alexandre Torgue <alexandre.torgue@foss.st.com>,
 Jose Abreu <joabreu@synopsys.com>,
 Maxime Coquelin <mcoquelin.stm32@gmail.com>,
 Michael Turquette <mturquette@baylibre.com>, Stephen Boyd
 <sboyd@kernel.org>, Richard Cochran <richardcochran@gmail.com>,
 Simon Horman <horms@kernel.org>, Andrew Halaney <ahalaney@redhat.com>,
 Bartosz Golaszewski <bartosz.golaszewski@linaro.org>,
 Johannes Zink <j.zink@pengutronix.de>, Shenwei Wang <shenwei.wang@nxp.com>,
 "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>,
 Swee Leong Ching <leong.ching.swee@intel.com>,
 Giuseppe Cavallaro <peppe.cavallaro@st.com>, netdev@vger.kernel.org,
 devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
 linux-arm-kernel@lists.infradead.org,
 linux-stm32@st-md-mailman.stormreply.com, linux-clk@vger.kernel.org
References: <20240315222754.22366-1-wafgo01@gmail.com>
 <20240315222754.22366-2-wafgo01@gmail.com>
 <4e168fbc-8a13-4666-ab80-e3032f61ef38@oss.nxp.com>
From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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In-Reply-To: <4e168fbc-8a13-4666-ab80-e3032f61ef38@oss.nxp.com>
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On 18/03/2024 08:32, Ghennadi Procopciuc wrote:
> On 3/16/24 00:27, Wadim Mueller wrote:
>> This commit adds device tree support for the NXP S32G3-based
>> S32G-VNP-RDB3 Board (Vehicle Networking Platform - Reference Design Board) [1].
>>
>> The S32G3 features an 8-core ARM Cortex-A53 based SoC developed by NXP.
>>
>> The device tree files are derived from the official NXP downstream Linux tree [2].
>>
>> This addition encompasses a limited selection of peripherals that are upstream-supported. Apart from the ARM System Modules (GIC, Generic Timer, etc.), the following IPs have been validated:
>>
>>     UART: fsl-linflexuart
>>     SDHC: fsl-imx-esdhc
>>     Ethernet: synopsys gmac/stmac
>>
>> Clock settings for the chip rely on ATF Firmware [3]. Pin control integration into the device tree is pending and currently relies on Firmware/U-Boot settings [4].
>>
>> These changes were validated using the latest BSP39 Firmware/U-Boot from NXP [5].
>>
>> The modifications enable booting the official Ubuntu 22.04 from NXP on
>> the RDB3 with default settings from the SD card and eMMC.
>>
>> [1] https://www.nxp.com/design/design-center/designs/s32g3-vehicle-networking-reference-design:S32G-VNP-RDB3
>> [2] https://github.com/nxp-auto-linux/linux
>> [3] https://github.com/nxp-auto-linux/arm-trusted-firmware
>> [4] https://github.com/nxp-auto-linux/u-boot
>> [5] https://github.com/nxp-auto-linux/auto_yocto_bsp
>>
>> Signed-off-by: Wadim Mueller <wafgo01@gmail.com>
> 
> This patch seems to be heavily based on the downstream version of the
> kernel. Many of the changes originate from NXP. Therefore, shouldn't the
> authors also be mentioned here?

Let's say there are 100 commits with 100 authors in downstream. Do you
expect to list them all? Please point to parts which are directly copied
(with references to original commits).

Anyway, Wadim's SoB is enough from DCO point of view. We do not keep
authorship of downstream sources. If downstream cared, they would
upstreamed it much earlier than the community.

However if original work has any copyright statements, they should be
retained if this is indeed derivative work.

Best regards,
Krzysztof